Temat: Trace - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: New trace fossils from the La Meseta Formation (Eocene) of Seymour Island, Antarctica
Autorzy:: Uchman, Alfred
Gaździcki, Andrzej
Powiązania:: https://bibliotekanauki.pl/articles/2051913.pdf
Data publikacji:: 2006
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Antarctica
Eocene
trace fossils
Źródło:: Polish Polar Research; 2006, 27, 2; 153-170
0138-0338
2081-8262
Pojawia się w:: Polish Polar Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Air pollution and natural sedimentation from the atmosphere in the region of the Admiralty Bay (South Shetland Islands)
Autorzy:: Pęcherzewski, Kazimierz
Powiązania:: https://bibliotekanauki.pl/articles/2053259.pdf
Data publikacji:: 1987
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Antarctic
air pollution
trace metals
Źródło:: Polish Polar Research; 1987, 8, 2; 145-151
0138-0338
2081-8262
Pojawia się w:: Polish Polar Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Construction of ichnogeneric names
Autorzy:: Rindsberg, A. K.
Powiązania:: https://bibliotekanauki.pl/articles/191214.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: ichnology
trace fossils
ichnotaxonomy
terminology
Opis:: Ichnologists have over used the root ichn- “trace”, employing it in new terms and new ichnogenera alike, to the point where it can be difficult to express one self clearly without using it several times in one sentence. The root derives from Ancient iχνος (ichnos), which means “foot print” or “track”, or by extension a “trace”, any sign of an animal’s activity. Perhaps it is time to explore the use of other roots to create new ichnologic terms and genera. Alternative Latin and Greek roots are given here, as well as ad vice on how to construct new ichnogenera in a technically correct and aesthetically pleasing manner.
Źródło:: Annales Societatis Geologorum Poloniae; 2015, 85, 3; 529-549
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Wobec genologii. Gatunek indywidualny Julii Hartwig
Autorzy:: Baran, Magdalena
Powiązania:: https://bibliotekanauki.pl/articles/445648.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie
Tematy:: individual genre
lapidary
trace
miniature
Opis:: In the context of genology. Julia Hartwig’s individual genre The article relates to three collections of poetry written by Julia Hartwig entitled Błyski, Zwierzenia i błyski, Trzecie błyski. Those miniature notes form a collection of omnidirectional traces and signs, characterized by its structural and thematic heterogeneity. Poetics notes contained in discusses volumes execute atypical literary form which is lapidaries. Hartwig while creating further poems, she heads a for authorial poetics, she generates entirely individual genre. Błyski also come in various analogic relations with Hartwig’s another poems placed in different poetry volumes. It proclaims the repeatability of topics, motives and structures in Hartwig’s writings, even the rewriting of her own lines and verses.
Źródło:: Annales Universitatis Paedagogicae Cracoviensis. Studia Poetica; 2017, 5; 203-219
2353-4583
2449-7401
Pojawia się w:: Annales Universitatis Paedagogicae Cracoviensis. Studia Poetica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Iron in cattle health
Autorzy:: Wysocka, D.
Snarska, A.
Sobiech, P.
Powiązania:: https://bibliotekanauki.pl/articles/1192099.pdf
Data publikacji:: 2020
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: cattle
iron
trace element homeostasis
Opis:: Iron is one of the most abundant elements on Earth, a vital component of every living organism, and an essential micronutrient for all animal species. The primary source of iron for calves and other new-born ruminants is milk or a milk replacer, while for adults it is forage. Drinking water can contain various amounts of Fe ions and can be a source of this element as well. Systemic iron homeostasis in vertebrates is mostly regulated by hepcidin (HEP), a peptide synthesized and secreted by hepatocytes. The largest amounts of iron in the body are incorporated into proteins, mainly haemoglobin and myoglobin. This element participates in several biochemical processes including blood production, transport of oxygen, energy metabolism and immune processes. Iron deficiency can result in so-called iron deficiency anaemia, mostly occurring in young calves due to low iron content in cow’s milk and high demand for this element by calf’s organism. Iron poisoning mostly occurs due to excess iron intake caused by an inappropriate dose of iron given to animals (injection or per os administration) or accidental consumption of high doses of supplements. Excess iron intake can cause overload and damage of internal organs. Oxidation of ferrous iron in haemoglobin can result in methemoglobinemia and an inability of erythrocytes to carry oxygen. In recent years, scientists have implicated some questions regarding iron and ruminants that need re-evaluation or further investigation, e.g. the upper tolerable concentration of Fe in drinking water, the relationship between inflammation and iron status, serum Fe as an indicator of inflammation, or ferritin as a predictive factor for iron deficiency anaemia in cattle.
Źródło:: Journal of Elementology; 2020, 25, 3; 1175-1185
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Indium in polymetallic mineralisation at the Gierczyn mine, Karkonosze-Izera Massif, Poland : results of EPMA and LA-ICP-MS investigations
Autorzy:: Foltyn, Krzysztof
Bertrandsson Erlandsson, Viktor
Kozub-Budzyń, Gabriela Anna
Melcher, Frank
Piestrzyński, Adam
Powiązania:: https://bibliotekanauki.pl/articles/2058542.pdf
Data publikacji:: 2020
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: Gierczyn
indium
trace elements
metamorphism
Opis:: Cassiterite and base-metal mineralisation from the Gierczyn mine on the Karkonosze-Izera Massif, Poland has been studied using electron microprobe and LA-ICP-MS (Laser Ablation Inductively Coupled Plasma Mass Spectrometry) techniques in order to determine the content of indium in the ore minerals. The main carriers of this element are sphalerite (up to 433 μ/g of In), chalcopyrite (up to 117 μ/g of In) and cassiterite (up to 0.02 wt.% In). Trace element contents of sulphides, especially Ga in chalcopyrite intergrown with sphalerite in comparison with chalcopyrite without sphalerite, may indicate metamorphic re-equlibration and suggests that the ore minerals might recrystallized and underwent metamorphism in conditions of greenschist/amphibolite facies. Although the deposits in the Stara Kamienica Schist Belt are not of economic value, they can contribute to better understanding of the relations between trace element partitioning and the formation of ore minerals.
Źródło:: Geological Quarterly; 2020, 64, 1; 74--85
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: L’animalità nella poesia di Jolanda Insana
The Animality in the Poetry of Jolanda Insana
Autorzy:: Malicka, Paulina
Powiązania:: https://bibliotekanauki.pl/articles/1048391.pdf
Data publikacji:: 2018-11-22
Wydawca:: Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:: animal
sound
voice
trace
territory
Opis:: The scope of the article is to reflect upon the argument of animality in the work of the Sicilian poet Jolanda Insana (1937-2016) which represents one of the possible interpretive keys of her works. The analytical part of the paper contains an analysis from the anti-anthropocentric perspective of some fragments of the section Bestia clandestina included in the volume Turbativa d’incanto (2012).
Źródło:: Studia Romanica Posnaniensia; 2018, 45, 3; 35-47
0137-2475
2084-4158
Pojawia się w:: Studia Romanica Posnaniensia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: The content of trace elements in the diet of adolescents in Warsaw
Zawartość pierwiastków śladowych w dietach młodzieży zamieszkałej w Warszawie
Autorzy:: Dybkowska, E.
Swiderski, F.
Waszkiewicz-Robak, B.
Powiązania:: https://bibliotekanauki.pl/articles/874929.pdf
Data publikacji:: 2011
Wydawca:: Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:: trace element
trace element content
iron
zinc
copper
human nutrition
diet
adolescent
Warsaw city
Opis:: The aim of the study is to assess the contents of iron, zinc and copper in the diet among of adolescents living in Warsaw. The intake of selected trace elements was estimated on the basis of three-day dietary records. Microelement contents in the diet were calculated using Food Composition Tables. The percentage of the RDA realization for the safe level was calculated on the basis of standards for Polish population, developed by National Food and Nutrition Institute. It was demonstrated that adolescents living in Warsaw had 50-60% copper-deficient diets. The content of iron and zinc in the diet of adolescents was about 10‑40% lower than recommended. Deficiency of iron in the body causes anaemia and influences learning process, therefore the content of this element in the diet of young people is especially important.
Celem pracy była ocena poziomu spożycia żelaza, cynku i miedzi przez młodzież zamieszkałą na terenie Warszawy. Średnie spożycie wybranych mikroelementów oszacowano na podstawie badań przeprowadzonych metodą trzydniowego bieżącego notowania oraz przy zastosowaniu tabel wartości odżywczej produktów spożywczych i odniesiono do norm dla ludności Polski opracowanych w Instytucie Żywności i Żywienia na poziomie bezpiecznym. Wykazano, że młodzież zamieszkała na terenie Warszawy miała diety niedoborowe w miedź w 50-60%. Zawartość żelaza i cynku w diecie badanych osób również była o ok. 10-40% niższa od zalecanej. Niedobór żelaza w organizmie powoduje niedokrwistość i wpływa na procesy uczenia się, dlatego zawartość tego pierwiastka w diecie osób młodych jest szczególnie istotna.
Źródło:: Roczniki Państwowego Zakładu Higieny; 2011, 62, 2
0035-7715
Pojawia się w:: Roczniki Państwowego Zakładu Higieny
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: The yield and content of trace elements in biomass of Miscanthus sacchariflorus (Maxim.) Hack. and in soil in the third year of a pot experiment
Plon i zawartość pierwiastków śladowych w biomasie trawy Miscanthus sacchariflorus (Maxim.) Hack oraz w glebie, w trzecim roku doświadczenia wazonowego
Autorzy:: Kalembasa, D.
Malinowska, E.
Powiązania:: https://bibliotekanauki.pl/articles/14701.pdf
Data publikacji:: 2009
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: Miscanthus sacchariflorus
biomass
yield
trace element
trace element content
soil
pot experiment
fertilization
sewage sludge
Opis:: In the third year of a pot experiment (in a greenhouse), the carryover influence of fertilization with fresh sewage sludge and, for comparison, mineral fertilization on the content and uptake of Fe, Mn, Mo, B, Ba, Sr, As, Sn, Li, and Ti by the biomass of Miscanthus sacchariflorus grass. The yield of silver-grass biomass was evaluated on the basis of two harvests (June and December). Trace elements in the tested grass as well as in the soil (after harvest) were determined by means of the ICP-AES technique after sample combustion in a muffle furnace. Significant influence of sewage sludge fertilization on yield of silver- grass biomass was found. Grass harvested in autumn contained higher contents of some analyzed trace elements (Fe, Mn, Sr, Ba, and Ti) than that harvested in summer. The uptake of trace elements uptake by the silver-grass biomass was higher from the objects fertilized with sewage sludge than the ones receiving mineral fertilization. After three years of cultivation, the soil contained more Fe, Mn, Ba, Sr, Ti, B, and Li as compared to the content before the experiment.
W trzecim roku doświadczenia wazonowego (w warunkach szklarni) badano wpływ następczego nawożenia świeżym osadem ściekowym oraz – dla porównania – nawożenia mineralnego na zawartość i pobranie Fe, Mn, Mo, B, Ba, Sr, As, Sn, Li i Ti przez biomasę trawy Miscanthus sacchariflorus. Plon biomasy określono na podstawie dwóch zbiorów miskanta (w czerwcu i grudniu). Pierwiastki śladowe w testowanej trawie oraz glebie (po zbiorze) oznaczono metodą ICP-AES, po mineralizacji próbek na sucho, w piecu muflowym. Stwierdzono istotny wpływ nawożenia osadem ściekowym na plonowanie biomasy miskanta cukrowego. W trawie zebranej jesienią stwierdzono większą zawartość niektórych analizowanych pierwiastków (Fe, Mn, Sr, Ba i Ti) niż w trawie zebranej latem. Pobranie pierwiastków śladowych z plonem biomasy miskanta było większe z obiektów nawożonych osadem ściekowym niż z obiektu nawo¿onego nawozami mineralnymi. Po trzech latach uprawy stwierdzono w glebie większą zawartość Fe, Mn, Ba, Sr, Ti, B i Li, w porównaniu z zawartością przed założeniem eksperymentu.
Źródło:: Journal of Elementology; 2009, 14, 4
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Prognosis of environmental impact of trace elements from brown coal-fired power plant Bełchatów
Autorzy:: Konieczyński, J.
Komosiński, B.
Jabłońska, M.
Cieślik, E.
Powiązania:: https://bibliotekanauki.pl/articles/204574.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: environment protection
brown coal
trace elements
combustion products
fl ue gas desulphurization (FGD) gypsum
forecast of trace elements emission
forecast of trace elements transfer
Opis:: A forecast of the negative impact exerted on the environment by selected trace elements in "Bełchatów" Power Plant has been prepared on the basis of the results of investigations into these elements’ distribution carried out as part of earlier research on coal from “Bełchatów” Field and the data on updated analyses of the content of these elements in 55 brown coal samples from test boreholes. Work in "Bełchatów" Power Plant, which is supplied with coal from "Szczerców" Field, will be accompanied by trace elements transfer. On the basis of the conducted investigations it has been found that the biosphere is most threatened by mercury emissions. As shown by the presented results of analyses and calculations, the emissions of mercury in "Bełchatów" Power Plant are low. Mercury is accumulated chiefly in gypsum produced in the FGD plant. The content of mercury in slag and ash is low.
Źródło:: Archives of Environmental Protection; 2012, 38, 3; 59-72
2083-4772
2083-4810
Pojawia się w:: Archives of Environmental Protection
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Trace element geochemistry of coals from the Southern Cantabrian Zone (NW Spain): preliminary results
Autorzy:: Botor, Dariusz
Powiązania:: https://bibliotekanauki.pl/articles/2086486.pdf
Data publikacji:: 2011
Wydawca:: Polskie Towarzystwo Mineralogiczne
Tematy:: trace elements
coal
Cantabrian Mountains
Spain
Opis:: Bituminous to anthracite coals from three small Stephanian intramontane coal-bearing basins (La Magdalena, Cinera-Matallana and Sabero) located along the Sabero-Gordón fault line strike-slip systems of the Southern Cantabrian Zone (SCZ) were examined. Coal rank expressed as mean vitrinite reflectance values of these Stephanian coals is in the range 0.72-3.96%. The vitrinite maceral group exceeds 72 vol. % in all of the coals. The coals are characterized by relatively variable contents of mineral matter and coal-ash. The mineral matter comprises, in the main, clay minerals, carbonates, sulphides and quartz. The coals exhibit medium-high concentrations (see for comparison Ronov et al. 1990; Kabata-Pendias, Pendias 1999; Ketris, Yudovich 2009) of the following elements (in ppm): ΣREE (53-205), Ba (300-900), As (11-57), Zn (<50-150), Cr (10-160), Rb (50- 145), Co (5-26), Sc (2-24.6), Ce (17-99), Yb (1.3-4.5), Th (2.4-11.9) and U (1.1-8.1), Br (<1-14), Cs (<2-9), Eu (<0,3-1.5), Lu (0.11-0.85) and Sb (0.8-4.8), and relatively low concentrations of Sm (0.6-6.6) and Ta (<1-2). They are also characterised by relatively high Th/U values (1.31-2.29). LREE/HREE values fall in the range 24-44 (average - 30). In contrast, concentrations of Au, Ag, Hg, Ir, Ni, Se, Sn, Sr, and W are below detection limits for the applied INAA method. As the concentrations of elements are significantly higher in coal-ash, most are likely related to mineral matter in the coals.
Źródło:: Mineralogia; 2011, 42, 1; 39--51
1899-8291
1899-8526
Pojawia się w:: Mineralogia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Trace element geochemistry of coals from the Southern Cantabrian Zone (NW Spain): preliminary results
Autorzy:: Botor, D.
Powiązania:: https://bibliotekanauki.pl/articles/2086537.pdf
Data publikacji:: 2011
Wydawca:: Polskie Towarzystwo Mineralogiczne
Tematy:: trace elements
coal
Cantabrian Mountains
Spain
Opis:: Bituminous to anthracite coals from three small Stephanian intramontane coal-bearing basins (La Magdalena, Cinera-Matallana and Sabero) located along the Sabero-Gordón fault line strike-slip systems of the Southern Cantabrian Zone (SCZ) were examined. Coal rank expressed as mean vitrinite reflectance values of these Stephanian coals is in the range 0.72-3.96%. The vitrinite maceral group exceeds 72 vol. % in all of the coals. The coals are characterized by relatively variable contents of mineral matter and coal-ash. The mineral matter comprises, in the main, clay minerals, carbonates, sulphides and quartz. The coals exhibit medium-high concentrations (see for comparison Ronov et al. 1990; Kabata-Pendias, Pendias 1999; Ketris, Yudovich 2009) of the following elements (in ppm): ΣREE (53-205), Ba (300-900), As (11-57), Zn (<50-150), Cr (10-160), Rb (50- 145), Co (5-26), Sc (2-24.6), Ce (17-99), Yb (1.3-4.5), Th (2.4-11.9) and U (1.1-8.1), Br (<1-14), Cs (<2-9), Eu (<0,3-1.5), Lu (0.11-0.85) and Sb (0.8-4.8), and relatively low concentrations of Sm (0.6-6.6) and Ta (<1-2). They are also characterised by relatively high Th/U values (1.31-2.29). LREE/HREE values fall in the range 24-44 (average - 30). In contrast, concentrations of Au, Ag, Hg, Ir, Ni, Se, Sn, Sr, and W are below detection limits for the applied INAA method. As the concentrations of elements are significantly higher in coal-ash, most are likely related to mineral matter in the coals.
Źródło:: Mineralogia; 2011, 42, 1; 39--51
1899-8291
1899-8526
Pojawia się w:: Mineralogia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: The use of the terms trace, mark and structure
Autorzy:: Vallon, L. H.
Rindsberg, A. K.
Martin, A. J.
Powiązania:: https://bibliotekanauki.pl/articles/191828.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: ichnology
terminology
mark
trace
sedimentary structure
Opis:: Mark, trace and structure have been in consistently used in ichnology for many years; we wish to clarify the origins and to prescribe correct usage of these terms. The origins of the words are ancient and complex; in the twentieth century they were given clear definitions as ichnologic terms. Seilacher (1953) defined a mark (German Marke) as a physical (abiogenic) sedimentary structure, as in the common terms sole mark, flute mark, but not bite mark or scratch mark. Trace has been defined many times; we recommend the consensus definition of Bertling et al. (2006) as “a morphologically recurrent structure resulting from the life activity of an individual organism (or homotypic or ganisms) modifying the substrate”; this in cludes dwelling trace, feeding trace, bite trace. Structure, as implied in another consensus paper (Frey, 1973), is a neutral term for geologic patterns resulting from either biogenic or abiogenic processes. Use of the three terms in a clear consistent manner will aid communication both among ichnologists and between ichnologists and their colleagues in other fields.
Źródło:: Annales Societatis Geologorum Poloniae; 2015, 85, 3; 527-528
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Bioerosional ichnotaxa and the fossilization barrier
Autorzy:: Bromley, R. G.
Nielsen, K. S. S.
Powiązania:: https://bibliotekanauki.pl/articles/191978.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: Fossilized
unfossilized
bioerosion
trace fossils
microborings
Opis:: For the establishment of a new ichnogenus or ichnospecies, the type material shall be fossil, not unfossilized material. This is not always possible, because the transition between the two states, the fossilization barrier, is extremely vague defined. In most fossil material, this is not a problem. However, in the case of bioerosion structures (borings, rasping traces, attachment scars in hard substrates), the problem is serious. For example, when does a sponge boring in an oyster shell be come fossilized? The question arises when Recent and sub-Recent materials are considered. Two examples are discussed. (1) Microborings are described and named in foraminifera dredged from the sea floor. In this material, it is not possible to distinguish between “fossilized” and “unfossilized” foraminifera. Bioturbation and other processes may have mixed recently dead, Pleistocene and older foraminifera in the sea-floor sediments. (2) Small, characteristic borings are made by slipper limpets in pagurized gastropod shells. The structures would constitute a new ichnospecies of Oichnus, but these borings have not been found in “fossilized material” and the borings therefore remain nameless. Because bioerosion structures constitute “ready-made fossils”, it is suggested that the onset of fossilization be equated with the death of the bioeroding tracemaker.
Źródło:: Annales Societatis Geologorum Poloniae; 2015, 85, 3; 453-455
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: The determination of titanium contained in Tytanit biostimulant employed to improve crops performance in natural environmental samples
Autorzy:: Wasąg, Joanna
Grabarczyk, Malgorzata
Powiązania:: https://bibliotekanauki.pl/articles/764056.pdf
Data publikacji:: 2016
Wydawca:: Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:: Tytanit, Adsorptive stripping voltammetry, trace analysis
Opis:: The purpose of this work was to determinate the amount of titanium in different environmental water samples spiked with crop biostimulant Tytanit. The measurements were conducted using adsorptive stripping voltammetry (AdSV). The titanium complex with chloranilic acid was accumulated on mercury film silver based electrode (Hg(Ag)FE) at the potential -0.3 V. The analysis of natural water samples enriched with Tytanit, collected in the eastern part ofPolandconfirms that this procedure is fast and essential for the determination of titanium in environmental water samples.
Źródło:: Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia; 2016, 71, 2
2083-358X
Pojawia się w:: Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 16.

Tytuł:: Przyczynek do levinasowskiej k Kant v kontexte Husserlovej a Heideggerovej filozofie rytyki fenomenologii czasu Husserla
Contribution to livines' critics of husserl's time phenomenology
Autorzy:: Sucharek, Pavol
Powiązania:: https://bibliotekanauki.pl/articles/2141613.pdf
Data publikacji:: 2010
Wydawca:: Instytut Studiów Międzynarodowych i Edukacji Humanum
Tematy:: Temporality
Transcendence
Trace
Consciousness
Diachrony
Past
Opis:: The presented paper briefly delimitates the main ideas of Levinas' criticism of Husserl ́s concept of time. According to Levinas, time in Husserl ́s comprehension is something like a product of the consciousness. In the consciousness is the time becoming a remembrance (remémorable) and then it is recaptured (récupérable) through the retention and protention or anticipation in present. Levinas believes that time is structured in completely different way; basically it is unreachable and untouchable as it is not an achievement of being (conatus essendi) but it is the transcendence of oneself, one ́s spacing, distance from being. It is not simply as the subject is experiencing time but it is more as the subject, a continuance of time and it flows in the stream of time. Subject as is understood by Levinas is the one who interfere the course of the time, “the possibility of new beginnings”.
Źródło:: Humanum. Międzynarodowe Studia Społeczno-Humanistyczne; 2010, 1(4); 113-120
1898-8431
Pojawia się w:: Humanum. Międzynarodowe Studia Społeczno-Humanistyczne
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 17.

Tytuł:: The content of macro and microelements in the shoots of Glyceria maxima of the Słupia River
Autorzy:: Parzych, A.
Cymer, M
Powiązania:: https://bibliotekanauki.pl/articles/125150.pdf
Data publikacji:: 2014
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: macrophytes
macroelements
trace elements
accumulation
pollution
Opis:: The study shows the content of macro- and microelements in the leaves and rhizomes of Glyceria maxima of the Słupia River in Słupsk. The content of macro and micro-elements in G. maxima was analyzed for each component separately and in an integrated way, and comparing the demand for nutritions. The largest quantity of nitrogen, phosphorus, potassium, magnesium and calcium were found in the leaves, meanwhile zinc, iron, manganese, nickel and copper in the G. maxima rhizomes. The amount of Zn and Cu, in all of the tested positions, within the range of the limit for the plants, and the concentrations of Ni and Mn exceed physiological needs. The U Mann Whitney test showed a number of statistically significant differences in the concentration of the analyzed elements in leaves – rhizomes, leaves – bottom sediment and rhizome bottom sediment relation. The relations between designated heavy metals formed a following series: Mn>Fe>Zn>Ni>Cu in leaves and Fe>Mn>Zn>Ni>Cu in rhizomes. The G. maxima shoots accumulated 985.8 do 1441.4 mmolc∙kg-1 in all the analyzed components, and the lower value of the sum of the accumulated macro and microelements were found in rhizomes. The sum of ion comospition of the macronutrients in the leaves and rhizomes was similar. The content of nitrogen was 51.7–53.7% of this amount, 5.8–8.6% phosphorus, potassium 22.8 – 26.6%, 4.9-5.8% of magnesium, calcium, 8.2–11.9%, and trace elements were 0.58% in total, in the case of leaves and 8.70% in the rhizomes.
Źródło:: Journal of Ecological Engineering; 2014, 15, 4; 29-36
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 18.

Tytuł:: Nanoadsorbents for the preconcentration of some toxic substances : a minireview
Autorzy:: Kaur, A.
Saini, S. S.
Powiązania:: https://bibliotekanauki.pl/articles/411821.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Solid phase extraction
preconcentration
trace analytes
Opis:: The development of new sorbents and their application in preconcentration methods for determination of trace analytes is subject of great interest. Sample pretreatment methods, such as separation / preconcentration prior to the determination of metal ions have developed rapidly due to the increasing need for accurate and precise measurements at extremely low levels of ions in diverse matrices. This review summarizes and discusses several analytical methods involving the preparation and use of new solid phase extractant. A literature survey of the last ten years offering a critical review of these new sorbents available for use in trace analyte enrichment is provided.
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2014, 2; 22-35
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 19.

Tytuł:: Chemometric evaluation of concentrations of trace elements in intervertebral disc tissue in patient with degenerative disc disease
Autorzy:: Kubaszewski, Łukasz
Zioła-Frankowska, Anetta
Gasik, Zuzanna
Frankowski, Marcin
Dąbrowski, Mikołaj
Molisak, Bartłomiej
Kaczmarczyk, Jacek
Gasik, Robert
Powiązania:: https://bibliotekanauki.pl/articles/987050.pdf
Data publikacji:: 2017
Wydawca:: Instytut Medycyny Wsi
Tematy:: intervertebral disk
degeneration
trace elements
chemometrics
Opis:: Background. The work is designed to uncover the pattern of mutual relation among trace elements and epidemiological data in the degenerated intervertebral disk tissue in humans. Hitherto the reason of the degenerative process is not fully understood. Trace elements are the basic components of the biological compound related both its metabolism as well as environmental exposure. The relation pattern among elements occurs gives new perspective in solving the cause of the disease. Methods. We have analysed trace elements content in the 30 intervertebral disc from 22 patients with degenerative disc disease. The concentrations of Al, Cu, Cd, Mo, Ni and Pb were determined with Atomic Absorption Spectrometry. To analyse the multidimentional relation between trace element concentration and epidemiological data the chemometric analysis was applied. Results. The similarity have been shown in occurrence of following pairs: Cd-Mo as well as Mg-Zn. The second pair was correlated with Pb concentration. Pb levels are observed to be competitive to Cu concentration. Cd concentration was related to Zn and Mg deficiency. No single but rather cluster of epidemiological data show observable influence on the TE tissue variance. Zn and Cu was related to the male sex. Operation with orthopedic implants were related to combined Al, Mo and Zn concentration. Conclusions. This is the first chemometric analysis of trace elements in disk tissue. It shows multidimentional relations that are missed by the classical statistic. The analysis shows significant relation. The nature of the relations is the basis for further metabolic and environmental research.
Źródło:: Annals of Agricultural and Environmental Medicine; 2017, 24, 4
1232-1966
Pojawia się w:: Annals of Agricultural and Environmental Medicine
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 20.

Tytuł:: Neoichnology of an Arctic fluvial point bar, North Slope, Alaska (USA)
Autorzy:: Martin, A. J.
Powiązania:: https://bibliotekanauki.pl/articles/2059252.pdf
Data publikacji:: 2009
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: ichnofacies
polar
Scoyenia
Mermia
trace fossils
Opis:: This study is the first to describe the neoichnology of an Arctic fluvial point bar (Colville River, Alaska, USA) and examine the sedimentological effects of tracemakers in this sedimentary setting. Seasonal extremes in discharge and sediment deposition in this system result in sandwaves, current ripples, gravel bars and mud veneers, with the latter forming extensive mudcracks. Organismal traces are abundantly represented in sandy mudflats on the downstream portion of the point bar and are characterized by: (1) abundant shallow horizontal invertebrate burrows and surface trails, directly comparable to Treptichnus, Cochlichnus and Aulichnites; (2) avian tracks and (3) large mammal tracks. Treptichnus-like burrows are attributed to dipteran larvae tracemakers, whereas Cochlichnus- and Helminthoidichnites-like trails were likely from nematodes or oligochaetes. Avian tracks are primarily from seagulls, geese, swans and plovers; mudcracks were connected directly to tracks, which developed as a result of in creased amounts of sunlight available during the polar summer. Mam mal tracks were dom i nated by those of caribou (Rangifer tarandus), but include grizzly bear (Ursos arctos) and other mammals. Caribou herds significantly impacted emergent and submergent mudflat surfaces through advection of saturated thixotropic muds and dry sand, while also fracturing mudcracked zones, and hence actively produced mud clasts. Vertebrates thus can cause considerable mixing, redistribution and erosion of sediments in Arctic point bars with only a few months of activity. Ichnodiversity was low but accompanied by high trace abundance, reflecting fa vorable hydrodynamic, solar and atmospheric conditions throughout a polar summer. In contrast, sedimentation and bioturbation are absent during winter months, when ice cover prevents organismal interactions with fluvial sediments. As a reult, the ichnocoenose does not fit easily into paradigms of previously defined continental ichnofacies (e.g., Mermia and Scoyenia) and is more like a composite ichnofacies. These findings can thus serve as a starting point for more detailed studies of circum polar point bars, while also adding new perspectives to the interpretation of trace fossils in circum polar fluvial environments.
Źródło:: Geological Quarterly; 2009, 53, 4; 383-396
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 21.

Tytuł:: Content and uptake of selected trace elements by weeds in potato to cultivation under different conditions of soil tillage and weed control methods
Autorzy:: Zarzecka, K.
Gugała, M.
Baranowska, A.
Powiązania:: https://bibliotekanauki.pl/articles/124723.pdf
Data publikacji:: 2014
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: weeds
trace elements
content
uptake
potato
Opis:: The study utilized data from a field experiment carried out at the Experimental Station in Zawady owned by the University of Natural Sciences and Humanities in Siedlce in the years 2005–2007. The experimental factors included two soil tillage systems and seven weed control methods in potato. Iron, copper and zinc in weeds were deter- mined with the AAS method. The trace element content in weed dry matter before row closure of potato depended significantly on soil tillage methods (excluding Cu), weed control methods and weather conditions, and, prior to tuber harvest, on soil tillage and weather conditions during the growing season. The uptake of Fe, Cu, and Zn by weeds from the area of 1 hectare depended on the experimental factors, weed biomass and weed chemical composition.
Źródło:: Journal of Ecological Engineering; 2014, 15, 4; 131-136
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 22.

Tytuł:: Les collectionneurs chez Pascal Quignard – s’accrocher obstinément au passé
Pascal Quignard’s collectors – stubbornly hold on to the past
Autorzy:: Preda, Andreea-Maria
Powiązania:: https://bibliotekanauki.pl/articles/24201048.pdf
Data publikacji:: 2022-12-30
Wydawca:: Katolicki Uniwersytet Lubelski Jana Pawła II. Wydawnictwo Werset
Tematy:: Pascal Quignard
collectionneur
objet-temps
objet-trace
remémoration
échec
collector
time-object
trace-object
remembrance
failure
Opis:: Le propos de cet article est de relever, dans une approche comparative, la versatilité du rôle des objets de collection dans le processus de remémoration chez les collectionneurs de certains romans de Pascal Quignard. L’analyse du discours mémoriel des collectionneurs relève deux aspects : un rapport différent à la valeur de l’objet (muséal ou intime) et le pouvoir de déclencher des émotions. Le discours balance entre une évocation impersonnelle, qui met l’accent sur l’importance matérielle, la dimension testimoniale et esthétique des objets d’art d’époques anciennes et une description passionnée et subjective de petits objets banals, mais chargés de significations psychologiques. L’article démontre que se rapporter excessivement aux objets-temps/trace en vertu de leur valeur documentaire ou commémorative débouchera sur un échec de la démarche mémorielle. Paradoxalement, le collectionneur reste toujours à la recherche de la mémoire perdue, malgré l’excès de preuves matérielles qu’il détient.
The purpose of this article is to highlight – in a comparative approach – the versatility of the role of collectibles in the process of recollection among collectors in certain novels by Pascal Quignard. The analysis of the memorial discourse of collectors reveals two aspects: the different relationship to the value of the object (museum or intimate) and the power to trigger emotions. The discourse balances between an impersonal evocation, with emphasis on the material importance, the testimonial and aesthetic dimension of art objects from ancient times and a passionate and subjective description of small, banal objects, but charged with psychological meanings. The article demonstrates that excessively relating to time-/trace-objects by virtue of their documentary or commemorative value will lead to a failure of the memorisation process. Paradoxically, the collector always remains in search of the lost memory, despite the excess of material evidence he holds.
Źródło:: Quêtes littéraires; 2022, 12; 139-150
2084-8099
2657-487X
Pojawia się w:: Quêtes littéraires
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 23.

Tytuł:: Trace metals migration in soil to seepage water
Autorzy:: Ryzhenko, Nataliia
Bokhonov, Yurii
Powiązania:: https://bibliotekanauki.pl/articles/2088198.pdf
Data publikacji:: 2020
Wydawca:: Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:: trace metals
migration
soil profile
pollution
lysimeter
Opis:: In this paper the rate migration of trace metals (Pb, Cd, Cu, Zn) in polluted turf-podzol sandy loam soil was investigated in lysimetric experiment. Koller’s model was applied to obtain the ranking of the metals according to their rate of migration in soil to seepage water. Among the studied metals, the most intense migrant in the soil to seepage water was lead. Lead had highest and earliest maximum concentration in seepage water. Cooper had weak migration intensity. According to metals migration ability, they can be ranked in the following descending order: Pb > Cd > Zn > Cu. Findings are relevant to assessing the metal as dangerous.
Źródło:: Polish Journal of Soil Science; 2020, 53, 2; 261-271
0079-2985
Pojawia się w:: Polish Journal of Soil Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 24.

Tytuł:: „Zataję siebie w kropce tego wiersza” – językowe precjoza w poezji Urszuli Kozioł
“Zataję siebie w kropce tego wiersza” – linguistic jewelery in the poetry of Urszula Kozioł
Autorzy:: Skibski, Krzysztof
Powiązania:: https://bibliotekanauki.pl/articles/1041626.pdf
Data publikacji:: 2018-10-02
Wydawca:: Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:: poetic syntax
free verse
phraseological trace
condensation
Opis:: The article concerns textual phenomena in the poetry of Urszula Kozioł, which constitute a part of a linguistic method for examining relations between elements of poetic language. The examples discussed concern free verse – they reveal elaborate structures and linguistic processes focused on syntactic condensation, poetic accommodation, elliptic verse or phraseological trace. In the poetry of Kozioł, especially phraseology is original, which makes the receptive perspective adopted at describing linguistic phenomena representative of complicated formal-semantic processes. The draft is an attempt to read the Poet’s texts with the use of linguistic tools, so it not only gives a complete picture of an individualised poet but helps to point out peculiarities, the examination of which requires a reflection on language perception in poetic structures.
Źródło:: Poznańskie Studia Polonistyczne. Seria Literacka; 2018, 32; 205-220
1233-8680
2450-4947
Pojawia się w:: Poznańskie Studia Polonistyczne. Seria Literacka
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 25.

Tytuł:: Heavy metals in moss samples exposed to the atmospheric dust after eruption of Eyjafjallajökull volcano
Zawartości metali ciężkich w mchach narażonych na działanie pyłu atmosferycznego po erupcji wulkanu Eyjafjallajökull
Autorzy:: Ochota, Patryk
Prokopowicz, Adam
Kośmider, Leon
Choina, Małgorzata
Stebel, Adam
Sobczak, Andrzej
Powiązania:: https://bibliotekanauki.pl/articles/1178963.pdf
Data publikacji:: 2012
Wydawca:: Instytut Medycyny Wsi
Tematy:: environmental monitoring
moss
trace metals
volcanic ash
Opis:: Background: Volcanic ash, which is ejected during volcanic eruptions, flies in the air and spreads by the wind over large distances. It is a magmatic source and as such may contain heavy metals. The aim of the study was to carry out investigation on heavy metal content: Pb, Cd, Zn, Fe, Mn, Cu and Cr in samples of moss bags exposed to atmospheric dust containing volcanic ash in Sosnowiec (Poland) after eruption of Eyjafjallajökull volcano in Iceland. Materials and methods: Samples have been exposed to atmospheric dust after volcanic eruption for 2 months, and were mineralised in 70% HNO3 and 30% H2O2. The content of Pb and Cd was analysed by atomic absorption spectrometry with electrothermal atomization (ETAAS) and Zn, Fe, Mn, Cu, Cr by atomic absorption spectrometry with flame atomization (FAAS). Results: During the experiment the content of lead in samples of moss increased by 54,9 μg/g, cadmium by 3,41 μg/g, manganese by 150 μg/g, iron by 6,09 mg/g, zinc by 514 μg/g, copper by 20,77 μg/g and chromium by 6,99 μg/g. Conclusions: In Sosnowiec the comparable increase of metal content was from several to 41 times higher than in the areas not exposed to volcanic ash. It indicates that volcanic ash can be a potential source of heavy metals in the environment and, consequently, affect our health.
Wstęp: Pył atmosferyczny, który jest wyrzucany podczas erupcji wulkanów, długo unosi się w powietrzu i rozprzestrzenia na duże odległości przy udziale wiatru. Jest pochodzenia magmowego, więc może zawierać metale ciężkie. Celem pracy było zbadanie zawartości metali ciężkich: Pb, Cd, Zn, Fe, Mn, Cu i Cr w próbkach mchu narażonych na działanie pyłu wulkanicznego opadającego na ziemię. Materiał i metody: Mchy były wystawione na działanie pyłu atmosferycznego po erupcji wulkanu przez }2 miesiące. Próby były mineralizowane kwasem azotowym i nadtlenkiem wodoru. Zawartość Pb i Cd oznaczono za pomocą absorpcyjnej spektrometrii atomowej z elektrotermiczną atomizacją, a Zn, Fe, Mn, Cu i Cr za pomocą absorpcyjnej spektrometrii atomowej z atomizacją w płomieniu. Wyniki badań: Podczas przeprowadzenia doświadczenia zawartość ołowiu w mchach zwiększyła się o 54,9 μg/g, Cd o 3,41 μg/g, Mn o 150 μg/g, Fe o 6,09 mg/g, Zn o 514 μg/g, Cu o 20,77 μg/g oraz Cr o 6,99 μg/g. Wnioski: W Sosnowcu stwierdzono od kilku do kilkudziestu razy wyższe przyrosty zawartości oznaczanych metali niż w porównywanych miejscach, co wskazuje, iż pył wulkaniczny może być potencjalnym źródłem metali ciężkich w środowisku, a w konsekwencji wpływać na nasze zdrowie.
Źródło:: Medycyna Środowiskowa - Environmental Medicine; 2012, 15, 1; 21-26
1505-7054
2084-6312
Pojawia się w:: Medycyna Środowiskowa - Environmental Medicine
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 26.

Tytuł:: First Paleozoic Zoophycos trace fossils from the Sudetes (the Bardo Unit)
Autorzy:: Muszer, J.
Haydukiewicz, J.
Powiązania:: https://bibliotekanauki.pl/articles/2059078.pdf
Data publikacji:: 2010
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: Polska
Sudetes
Upper Visean
trace fossils
Zoophycos
Opis:: The trace fossil Zoophycos has been first time recognized in the Sudetes within the lower Carboniferous (upper Visean, crenistria Zone) of the Paprotnia Beds in the Bardo Unit. A distinct concentration of Zoophycos occurs in the lower part of the Paprotnia profile, in mudstones interbedded with bentonites, which were most likely deposited between storm wave base and fair weather wave base, in oxygenated water.
Źródło:: Geological Quarterly; 2010, 54, 3; 381-384
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 27.

Tytuł:: Chemical composition of soil and lake sediments - an indicator of geological processes in Lithuania
Autorzy:: Gregorauskiene, V.
Kadunas, V.
Powiązania:: https://bibliotekanauki.pl/articles/2059444.pdf
Data publikacji:: 2000
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: Lithuania
trace elements
soil
lake sediments
geoindicators
Opis:: Long-term multipurpose geochemical studies in Lithuania show that the chemical composition of surface sediment can be used as an indicator of geological process: duration of weathering, soil formation and thickness of sediment. The chemical composition of upper and lower soil layers and of lake sediments gives information on past sedimentation: the type and age of Quaternary deposits and the location and depth of Pleistocene glaciolacustrine basins. We therefore have a baseline to predict changes in surface chemistry provoked by current anthropogenic pressures.
Źródło:: Geological Quarterly; 2000, 44, 4; 347-354
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 28.

Tytuł:: Lower Cambrian trace fossils from the Holy Cross Mountains, Poland
Autorzy:: Orłowski, S.
Żylińska, A.
Powiązania:: https://bibliotekanauki.pl/articles/2059927.pdf
Data publikacji:: 2002
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: Holy Cross Mountains
Lower Cambrian
trace fossils
Opis:: Additional data on the Lower Cambrian ichnotaxa from the Holy Cross Mountains are presented. Nine ichnotaxa are described for the first time from the area, additional descriptions of three known ichnotaxa are supplied, and two ichnotaxa are shown to have extended stratigraphic ranges. Most Lower Cambrian trace fossils belong to the Cruziana ichnofacies. The high taxonomic diversity of the Early Cambrian trace fossil assemblages from the Holy Cross Mountains in comparison to the trace fossil assemblages of the Mid- and Late Cambrian of the area is confirmed.
Źródło:: Geological Quarterly; 2002, 46, 2; 135-146
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 29.

Tytuł:: Geochemistry of the Igdekoy-Doganlar Na-Ca borate deposit, Emet Province (western Anatolia, Turkey)
Autorzy:: Koçak, İsmail
Powiązania:: https://bibliotekanauki.pl/articles/2060268.pdf
Data publikacji:: 2020
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: REE
trace element
borate
mineralogy
ulexite
probertite
Opis:: Borates at the Igdekoy-Doganlar locality were deposited in a Miocene lacustrine environment during periods of Paleogene to Early Quaternary volcanic activity. The mineral paragenesis consists of probertite – NaCaB5O7(OH)4 3H2O, ulexite - NaCa[B5O6(OH)6] · 5H2O, hydroboracite - CaMg[B3O4(OH)3]2 3H2O, colemanite - Ca[B3O4(OH)3] · H2O, halite, anhydrite, glauberite, smectite and illite. The major element, Ca, is higher in the lgdekoy-Doganlar deposits compared to the averages for andesite and the Earth's crust. Within the trace elements, notable enrichment is identified in Li, Se, As, Sb, Sr and Cs. Lithium and Se occur in sufficient concentrations to be considered as economically valuable by-products. B and Sr anomalies can be used as an important marker in the exploration for boron deposits. The Y/Ho ratio of the lgdekoy-Doganlar borates is close to chondritic values. The negative Ce anomaly in borates from the lgdekoy-Doganlar deposit suggests that deposition occurred under oxidative conditions. The Eu and Ce anomalies reflect a hydrothermal contribution of REE. Geochemical and geological data suggest that the lgdekoy-Doganlar borate deposits were formed in high-pH playa lakes that were discharged from volcanic and terrestrial environments under evaporative conditions due to the effect of arid-semi arid climate.
Źródło:: Geological Quarterly; 2020, 64, 3; 807--817
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 30.

Tytuł:: Ichnology of Upper Cretaceous–lower Palaeogene deep-sea deposits in the Haymana Basin of Central Anatolia
Autorzy:: Demircan, Huriye
Görmüş, Muhittin
Powiązania:: https://bibliotekanauki.pl/articles/1836251.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: trace fossils
benthic foraminifera
Campanian
Paleocene
Turkey
Opis:: Upper Cretaceous to lower Palaeogene carbonate and siliciclastic deposits that crop out widely in the Haymana and Polatlı districts (Ankara Province) of the Haymana Basin (Central Anatolia) are rich in larger benthic foraminifera, various macrofossils and ichnofossils. The ichnofossils of the Haymana and Yeşilyurt formations were studied at five localities. The Upper Cretaceous siliciclastics of the Haymana Formation contain moderately diverse trace fossils, belonging to the deep-sea Nereites ichnofacies. The Paleocene siliciclastic and carbonate deposits of the Yeşilyurt Formation comprise similar trace fossils, which do not show significant changes in comparison to the Haymana Formation. This indicates that the K-Pg boundary extinction event did not affect the ichnofauna with any longer consequences. The Upper Cretaceous coarser, siliciclastic deposits of the Haymana and Beyobası formations are rich in shallow-marine, larger benthic foraminifera, including species of Orbitoides, Omphalocyclus, Siderolites, Hellenocyclina, and Loftusia, whereas fine siliciclastic deposits contain abundant planktonic, open-marine foraminifera, such as Globotruncana and Heterohelix. Palaeogene siliciclastic to carbonate deposits of the Kartal, Yeşilyurt and Çaldağ formations are rich in the larger, benthic foraminifera Nummulites, Discocyclina, Assilina and Alveolina. The larger foraminifers have been redeposited from nearby, shallow-marine parts of the basin.
Źródło:: Annales Societatis Geologorum Poloniae; 2020, 90, 4; 463-493
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 31.

Tytuł:: Putative ichnogenus Paralanicichnites Ghare and Badve 1981 from the Palaeogene of the Kachchh Basin (India) is a coral
Autorzy:: Kulkarni, Kantimati G.
Sikilkar, Namra
Powiązania:: https://bibliotekanauki.pl/articles/1836357.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: trace fossil
scleractinian coral
Palaeogene
fossiliferous limestone
Opis:: Structures, reported as the trace fossil, Paralanicichnites conflueris, were described from the Palaeogene rocks of the Kachchh (Kutch) District, Gujarat State, India, by Ghare and Badve as a new ichnogenus and ichnospecies. Restudy of the type specimens revealed that the form described as a burrow in fact is a scleractinian coral, as evidenced by its phaceloid morphology, septate calcareous exoskeleton, and twelve primary septa. It appears that there is also confusion regarding the exact geological formation, from which the specimens under consideration were taken by the original authors, as well as the age assigned by them.
Źródło:: Annales Societatis Geologorum Poloniae; 2020, 90, 1; 95-98
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 32.

Tytuł:: Detection of ethane, methane, formaldehyde and water vapor in the 3.33 μm range
Autorzy:: Winkowski, Mateusz
Stacewicz, Tadeusz
Powiązania:: https://bibliotekanauki.pl/articles/2106414.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: infrared spectroscopy
multipass
biomarkers
trace gas sensing
Opis:: We describe construction and investigation results of optical trace gas sensor working in the 3.334-3.337 μm spectral range. Laser spectroscopy was performed with a multipass cell. A setup was elaborated for detection of ethane at the 3.3368035 μm absorption line. Analysis of the gas spectra and the experiment have shown that, beside C2H6, the sensor is suitable for simultaneous detection of methane, formaldehyde and water vapor. Due to nonlinearity of the laser power characteristic we decided to detect the fourth harmonic of signal. Additional laser wavelength modulation was applied for optical interference suppression. In result, the precision of ethane detection of approximately 80 ppt has been achieved for the averaging time of 20 seconds. Long-term stability as well as the measurement linearity have also been positively tested. The system is suitable for detecting potential biomarkers directly in human breath.
Źródło:: Metrology and Measurement Systems; 2022, 29, 2; 271--282
0860-8229
Pojawia się w:: Metrology and Measurement Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 33.

Tytuł:: Assessing Spatial Distributions of Total Trace Elements Content in Bottom Sediments of Dzierżno Duże Water Reservoir – Geostatistics-Based Studies
Autorzy:: Rozpondek, R.
Rozpondek, K.
Powiązania:: https://bibliotekanauki.pl/articles/123432.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: bottom sediments
spatial distribution
trace elements
geostatistics
Opis:: The aim of this study was to assess the spatial distributions of total trace elements content in the bottom sediments of Dzierżno Duże water reservoir, along with the comparison of the accuracy and characteristics of Kriging and IDW interpolations. On the basis of regular measurement grid consisting of 53 points, bottom sediments samples were collected. Mean values of total trace elements content in bottom sediments of Dzierżno Duże were as follows: Zn – 410 mg/kg, Pb – 57 mg/kg, Cr – 36 mg/kg, Cu – 40 mg/kg, Cd – 5 mg/kg, Ni – 16 mg/kg and Ba – 267 mg/kg. According to the geochemical quality classification, the concentrations of Cd in 32% of samples were assigned to class IV (heavily contaminated), 45% to class III (contaminated), Zn in 42% samples to class III with 1 sample in class IV and 26% to class II (slightly contaminated), Pb in 9% to class III and 58% to class II, Cu in 4% to class III and 68% to class II, Cr in 17% to class II, Ni in 55% to class II, Ba in 8% to class III and 61% in class II. Coefficient of determination was determined between each case of trace elements content. The highest correlation (R2 in range from 0.81 to 0.96) was observed between Zn and Pb, Zn and Cu, Zn and Cr, Zn and Ni, Pb and Cu, Pb and Cr, Cu and Cr, Cr and Ni. Significant correlation (R2 in range from 0.70 to 0.80) occurred between: Zn and Cd, Pb and Ni, Cu and Ni, Cd and Ni. The lowest correlations (R2 in range from 0.25 to 0.70) were observed between concentration of Ba and the rest of trace elements. Two different interpolation methods were chosen for the purpose of generating spatial distributions – Inverse Distance Weighted and Ordinary Kriging. These methods were chosen for purpose of obtaining optimal accuracy result of spatial distributions. The distributions of trace elements content were classified by means of geochemical criteria. In the case of accuracy comparison between IDW and Ordinary Kriging, the former had slightly better results in terms of mean value and root mean square. The generated spatial distributions allowed to determine the most contaminated areas, which were mainly northern-central and southern-central parts of water Dzierżno Duże reservoir.
Źródło:: Journal of Ecological Engineering; 2018, 19, 3; 52-60
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 34.

Tytuł:: Multi-element analysis of urine using dynamic reaction cell inductively coupled plasma mass spectrometry (ICP-DRC-MS) — A practical application
Autorzy:: Brodzka, Renata
Trzcinka-Ochocka, Małgorzata
Janasik, Beata
Powiązania:: https://bibliotekanauki.pl/articles/2179785.pdf
Data publikacji:: 2013-04-01
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:: metals
trace elements
exposure
urine
ICP-MS
Opis:: Objectives: The method for the determination of As, Al, Cd, Ni, Pb (toxic elements) and Cr, Co, Cu, Fe, Mn, Zn (essential elements) in human urine by the use of Inductively Coupled Plasma Mass Spectrometry (quadrupole ICP-MS DRCe Elan, Perkin Elmer) with the dynamic reaction cell (DRC) was developed. Materials and Methods: The method has been applied for multi-element analysis of the urine of 16 non-exposed healthy volunteers and 27 workers employed in a copper smelter. The analysis was conducted after initial 10-fold dilution of the urine samples with 0,1% nitric acid. Rhodium was used as an internal standard. The method validation parameters such as detection limit, sensitivity, precision were described for all elements. Accuracy of the method was checked by the regular use of certified reference materials ClinCheck®-Control Urine (Recipe) as well as by participation of the laboratory in the German External Quality Assessment Scheme (G-EQUAS). Results: The detection limits (DL 3s) of the applied method were 0.025, 0.007, 0.002, 0.004, 0.004, 0.086, 0.037, 0.009, 0.016, 0.008, 0.064 (μg/l) for Al, As, Cd, Cr, Co, Cu, Fe, Mn, Ni, Pb, Zn in urine, respectively. For each element linearity with correlation coefficient of at least 0.999 was determined. Spectral interferences from some of the ions were removed using DRC-e with addition of alternative gas: methane for cobalt, copper, cadmium, chromium, iron, manganese, nickel and rhodium, and oxygen for arsenic. Conclusions: The developed method allows to determine simultaneously eleven elements in the urine with low detection limits, high sensitivity and good accuracy. Moreover, the method is appropriate for the assessment of both environmental and occupational exposure.
Źródło:: International Journal of Occupational Medicine and Environmental Health; 2013, 26, 2; 302-312
1232-1087
1896-494X
Pojawia się w:: International Journal of Occupational Medicine and Environmental Health
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 35.

Tytuł:: The complexes of antibiotics with trace metals
Kompleksy antybiotyków z metalami śladowymi
Autorzy:: Piontek, M.
Fedyczak, Z.
Łuszczyńska, K.
Powiązania:: https://bibliotekanauki.pl/articles/396141.pdf
Data publikacji:: 2012
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: antibiotics
trace metals
complexes of trace metals
instrumental analysis
antybiotyki
metale śladowe
kompleksy metali śladowych
analiza instrumentalna
Opis:: This article, basing on the available literature, summarizes the results of physiochemical research into the structure of complexes of trace metals with antibiotics. It presents the leading methods of instrumental analysis applied to determine the structure of complexes.
W artykule, na podstawie danych pochodzących z piśmiennictwa, zestawiono wyniki badań fizykochemicznych nad strukturą kompleksów antybiotyków z metalami śladowymi. Przedstawiono wiodące metody analizy instrumentalnej służące do określania struktury kompleksów.
Źródło:: Civil and Environmental Engineering Reports; 2012, 8; 47-59
2080-5187
2450-8594
Pojawia się w:: Civil and Environmental Engineering Reports
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 36.

Tytuł:: First report on swimming trace fossils of fish from the Upper Permian and Lower Triassic of the Dolomites (Italy)
Autorzy:: Ronchi, A.
Santi, G.
Marchetti, L.
Bernardi, M.
Gianolla, P.
Powiązania:: https://bibliotekanauki.pl/articles/191698.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: Trace fossils
Undichna
Permian
Triassic
northern Italy
Opis:: In the Upper Permian continental to marginal-marine succession of the Southern Alps (Dolomites, north Italy), the ichnological record consists of diverse vertebrate footprints and non-diverse invertebrate trace fossils, mainly occurring in the “Bletterbach ichnoassociation” of the Val Gardena Sandstone Formation. After the Permian-Triassic Boundary event, vertebrate ichnoassociations are scarce until the Middle Triassic (Anisian), whereas the uppermost Permian-Lower Triassic Werfen Formation preserves a rich invertebrate trace-fossil record. To date, fish body and trace fossils (Undichna) are very rare in the pre- and post-extinction deposits of the Dolomites; only Undichna gosiutensis Gibert, 2001 was identified in the “Voltago Conglomerate” (Middle Anisian), whereas some unidentified fossil fish casts were found in the Permian Val Gardena Sandstone and some fish remains in the overlying Werfen Formation. Recently, for the first time, fish trails have been discovered in the Val Gardena Sandstone (Lopingian) and in the Werfen Formation (Campil member, Early Triassic, Smithian). Val Gardena Sandstone yielded Undichna cf. quina Trewin, 2000 and U. bina Anderson, 1976 and these represent the oldest fish trails found in the Southern Alps so far. Conversely, the specimens found in the Werfen Formation can be assigned to Undichna cf. britannica Higgs, 1988. They represent the oldest Mesozoic record of fish trace fossils in northern Italy and one of the few records of Undichna from marine environments. These trace fossils are consistent with the fossil association found in the two formations and reflect fish swimming activity in different environments: in very shallow, calm, brackish distal-floodplain to marginal-marine environments in the Late Permian, in association with abundant and diverse tetrapod tracks, and non-diverse invertebrate trace fossils, and in inter- to subtidal calm, shallow, marine environments in the Early Triassic, together with abundant, but not diverse invertebrate trace fossils.
Źródło:: Annales Societatis Geologorum Poloniae; 2018, 88, 2; 111-125
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 37.

Tytuł:: Ichnotaxonomy as a science
Autorzy:: Rindsberg, A. K.
Powiązania:: https://bibliotekanauki.pl/articles/191834.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: taxonomy
ichnotaxobases
trace fossils
ichnology
standardized classification
Opis:: If ichnotaxonomy is to be scientific, then its results must be repeatable. While some ichnotaxa are identified consistently, others are not, suggesting that ichnotaxonomy is not a mature science. When researchers disagree on the identification of a specimen, it suggests that closer examination is needed: an intermediate stage in the scientific method. But when ichnologists publish different names for the same trace fossils, multiple trials of classification have yielded different results, suggesting a failure of the hypotheses that led to the names. The burgeoning of invertebrate ichnology from the 1960s onward was made possible by demonstrating its utility to the petroleum industry; in part, this was accomplished by simplifying the ichnotaxonomy of common trace fossils to the point where a specialist was not required to make use of them in sedimentology and stratigraphy. The biological aspect of trace fossils, albeit of great interest, was downplayed in favour of a severely geometric approach. Ironically, this has had the effect of obscuring basic relationships of trace fossils and their palaeoenvironments that could be of great use to sedimentologists. Previous researchers have emphasized the value of a uniform approach in ichnotaxonomy. To accomplish this, ichnologists should take inspiration from the taxonomy of body fossils. Making ichnotaxonomy more replicable will take time and effort among investigators. In the long run, this can be accomplished by a holistic approach that includes close observation of trace fossils, standardized procedures of description and diagnosis, reinvestigation of type material, attention to bioprint (morphological traits that reveal the anatomical and ethological characteristics of the tracemakers; Rindsberg and Kopaska-Merkel, 2005), avoidance of taphonomic and human bias, and above all, cooperation.
Źródło:: Annales Societatis Geologorum Poloniae; 2018, 88, 2; 91-110
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 38.

Tytuł:: The effect of waste sulfur obtained during biogas desulfurization on the availability of selected trace elements in soil
Autorzy:: Bobowiec, A.
Tabak, M.
Powiązania:: https://bibliotekanauki.pl/articles/184269.pdf
Data publikacji:: 2018
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: elemental sulfur
sulfur pulp
waste
trace elements
Opis:: Research concerning the effect of the application of waste sulfur pulp (doses: 10, 20, 30, 60 mg S • kg–1 d.m. of soil) on selected soil properties was carried out. The pulp contained sulfur in the elemental form. Before setting up the experiment, the soil had a slightly acid reaction (determination in 1 mol • dm–3 KCl) and was not contaminated with heavy metals. After conducting the incubation experiment, it was observed that the application of sulfur pulp led to a statistically significant (and proportional to the dose) increase in the content of available sulfur in soil. Application of waste caused a decrease in soil pH and an increase in the mobility and availability of Zn, Cd and Mn (extracted with 0.01 mol • dm–3 CaCl2). In relation to soil without waste, more Zn, Cd and Mn (by 4–51%, 9–24% and 0.1–31%, respectively) was determined. Liming reduced the acidifying effect of the introduced waste – after 150 days, only soil with the highest dose of sulfur pulp was characterized by a statistically significantly lower pH than the soil without the waste addition. An increase in the rate of sulfur oxidation was also observed – after 150 days of the experiment, more sulfate sulfur (by 14.4–34.5%) was determined, with respect to treatments of the unlimed series. A considerably lower content of Zn, Cd and Mn was determined in the limed soil than in the unlimed one. Regardless of waste dose and date of analysis, the soil contained a trace content of mobile forms of Cu, Cr, Ni and Pb.
Źródło:: Geology, Geophysics and Environment; 2018, 44, 4; 345-355
2299-8004
2353-0790
Pojawia się w:: Geology, Geophysics and Environment
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 39.

Tytuł:: Trace elements and rat pouchitis
Autorzy:: Drzymała-Czyż, Sławomira
Banasiewicz, Tomasz
Walas, Stanisław
Kościński, Tomasz
Wenska-Chyży, Ewa
Drews, Michał
Walkowiak, Jarosław
Powiązania:: https://bibliotekanauki.pl/articles/1039660.pdf
Data publikacji:: 2012
Wydawca:: Polskie Towarzystwo Biochemiczne
Tematy:: pouchitis
selective deficiency
restorative proctocolectomy
trace elements
Opis:: The procedure of restorative proctocolectomy is associated with a complete removal of the colon and slight reduction of ileum length, which together can lead to systemic shortages of trace elements. Inflammatory changes in the pouch mucosa may also have some impact. However, there is no data on trace elements in pouchitis. Therefore, in the present study we aimed to assess the effect of acute pouchitis on the status of selected trace elements in rats. Restorative proctocolectomy with the construction of intestinal J-pouch was performed in twenty-four Wistar rats. Three weeks after the surgery, pouchitis was induced. Eight untreated rats created the control group. Liver concentrations of selected micronutrients (Zn, Cu, Co, Mn, Se) were measured in both groups six weeks later, using inductively coupled plasma mass spectrometry. Liver concentrations of trace elements did not differ between the study and the control groups. However, copper, cobalt and selenium concentrations [μg/g] were statistically lower (p<0.02, p<0.05 and p<0.04, respectively) in rats with severe pouchitis (n=9) as compared with rats with mild pouchitis (n=7) [median (range): Cu - 7.05 (3.02-14.57) vs 10.47 (5.16-14.97); Co - 0.55 (0.37-0.96) vs 0.61 (0.52-0.86); Se - 1.17 (0.69-1.54) vs 1.18 (0.29-1.91)]. In conclusion, it seems that acute pouchitis can lead to a significant deficiency of trace elements.
Źródło:: Acta Biochimica Polonica; 2012, 59, 4; 599-601
0001-527X
Pojawia się w:: Acta Biochimica Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 40.

Tytuł:: Distribution of Trace Elements in Surface Water and Sediments from Warri River in Warri, Delta State of Nigeria
Autorzy:: Ama, Ibiam Ntachiobi
Nwajei, Godfry E.
Agbaire, P. O.
Powiązania:: https://bibliotekanauki.pl/articles/1114111.pdf
Data publikacji:: 2017
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Contamination
Trace elements
Warri River
pollution index
Opis:: The pollution of surface water and sediments by heavy metals has become a difficult thing to deal with due to their toxicity and accumulative behavior. The present study was undertaken to provide information on the concentrations and distribution of selected heavy metals in surface water and sediments from Warri River, and to compute a contamination/pollution index of heavy metals. Surface water and sediment samples were collected using standard methods and then analysed for nine trace metals. These metals were determined using a Flame Atomic Absorption Spectrophotometer – UNICAM 929. According to our results, the mean concentrations of the select metals in the sediments were higher than those of the surface water. The figures, however, varied significantly in the six sample locations (SW1–SW6). In the sediments, the highest mean concentration was of Fe (504.13 mg/kg) in location SW1, whereas in surface water, generally, the highest mean concentration was of Fe (1.23 mg/l). In other words, mean metal levels in the sediments exceeded those of surface water. This indicates that sediments are a sink for metal pollution loads. Computation of contamination/ pollution index in sediment matrix revealed that Cd moderately polluted the sediment, Zn, Fe, Ni slightly, yet significantly contaminated the sediment, while Cu, Cr and Mn very slightly contaminated the sediments. The mean values of metals in this present study were compared with other values reported by other researchers. The higher than normal metal values were attributed to anthropogenic wastes, runoff, refinery jetty and varied petroleum related activities in the area.
Źródło:: World News of Natural Sciences; 2017, 11; 65-82
2543-5426
Pojawia się w:: World News of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 41.

Tytuł:: Trace metals in soils and several Brassicaceae plant species from serpentine sites of Serbia
Autorzy:: Tomović, G. M.
Mihailović, N. L.
Tumi, A. F.
Gajić, B. A.
Mišljenović, T. D.
Niketić, M. S.
Powiązania:: https://bibliotekanauki.pl/articles/205251.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Brassicaceae
nickel
trace metal
serpentine soil
Serbia
Opis:: Serpentine soils from 16 sample points in Serbia as well as the roots and shoots of eight Brassicaceae family species: Aethionema saxatile, Alyssum montanum, Alyssum repens, Cardamine plumieri, Erysimum linariifolium, Erysimum carniolicum, Isatis tinctoria, Rorippa lippizensis, were analyzed with regard to their concentrations of P, K, Fe, Ca, Mg, Ni, Zn, Mn, Cu, Cr, Cd, and Pb. Most of the soil samples were typical of ultramafi c sites with low concentrations of P, K and Ca and high concentrations of Mg, Fe, Ni and Zn. Ca/Mg ratio was <1 in most soil samples and Brassicaceae plants. Only in A. montanum, A. repens, E. linariifolium and R. lippizensis was the Ca/Mg ratio >1. The levels of P, K, Fe and Zn were high, Mn and Cu occurred in low amounts, whereas Cr, Cd, Co and Pb were only traceable. In the roots and shoots of A. montanum and A. repens the measured concentrations of Ni were 657 mg kg^-1 and 676 mg kg^-1 respectively, which is the fi rst instance that such high concentrations of Ni were detected in these two species.
Źródło:: Archives of Environmental Protection; 2013, 39, 4; 29-49
2083-4772
2083-4810
Pojawia się w:: Archives of Environmental Protection
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 42.

Tytuł:: Tectonic discrimination of siliciclastic sedimentary record of the northern Tethyan margin at the end of the Triassic
Autorzy:: Vďačný, Marek
Michalík, Josef
Lintnerová, Otília
Powiązania:: https://bibliotekanauki.pl/articles/2058608.pdf
Data publikacji:: 2019
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: sedimentology
geodynamics
major elements
trace elements
palaeogeography
Opis:: Tectonic setting of both the uppermost Triassic Tomanová and the lowermost Jurassic Dudziniec formations can be characterized by a series of diagnostic discrimination diagrams. High-silica and low-silica multi-dimensional diagrams indicate that the sediments could have been deposited in the continental collision/rift setting. Diagrams of K2O/Na2O versus SiO2, SiO2/Al2O3 versus K2O/Na2O and Th-Co-Zr/10 as well as Th-Sc-Zr/10 determine an origin from the tectonically active and/or passive continental margin setting. REE parameters indicate predominantly a passive margin tectonic setting of the sediments. The most probable source of clastic admixture in the Scythian to Domerian sediments in the Tatric Unit was situated in a remnant of the Variscan collisional orogen - the Vindelician Highlands. Occasional monsoonal rains occurring in orbitally controlled cycles transported weathered material from the source area down river valleys on the seaward slopes of the Variscan Vindelician Mountains towards the Tethyan Sea. The input of this material influenced also the marginal parts of the Fatricum (e.g., Vysoká or Havran units).
Źródło:: Geological Quarterly; 2019, 63, 1; 30--38
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 43.

Tytuł:: Large cruzianid trace fossils in the Ordovician of the peri-Baltic area : the case of the Bukówka Formation (Holy Cross Mountains, Poland)
Autorzy:: Stachacz, M.
Łaska, W.
Uchman, A.
Powiązania:: https://bibliotekanauki.pl/articles/2059780.pdf
Data publikacji:: 2018
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: Ordovician
trace fossils
bioturbation
Cruziana
taphonomy
Baltica
Opis:: The Middle Ordovician Bukówka Formation, composed of fine-grained quartz sandstones with siltstone intercalations, belongs to the Kielce Region of the Holy Cross Mountains (peri-Baltic palaeogeographic position). It contains trace fossils of low diversity and poor preservation. Particularly noteworthy are the large Cruziana and Rusophycus, that are typical of peri-Gondwanan areas. They consist of casts of bilobate furrows showing diverse preservation. Other trace fossils include mostly horizontal pascichnia, cubichnia, and fodinichnia, but also vertical domichnia. The trace fossil assemblage is typical of the archetypal Cruziana and partly of the Skolithos ichnofacies. Some beds contain abundant orthid brachiopods. The trace fossils and sedimentary structures (horizontal, low-angle and wave ripple cross-laminations, hummocky cross-stratification) suggest deposition on the middle and lower shoreface with storm influence. The poor preservation and low diversity of the trace fossils are related to the homogeneous lithology, low accumulation rate, shallow burial of organic matter and strong bioturbation. Therefore, animals burrowed strongly but mostly in shallow tiers. Thus, the preservation potential of their traces was much lower than in many peri-Gondwanan sections but still higher than in Baltica sedimentary rocks. This explains the provincial differences in ichnofauna during the Ordovician, which at least partly were influenced by the preservation potential.
Źródło:: Geological Quarterly; 2018, 62, 2; 400--414
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 44.

Tytuł:: Assessment of Trace Metals Leaching During Rainfall Events from Building Rooftops with Different Types of Coverage – Case Study
Autorzy:: Nawrot, N.
Wojciechowska, E.
Powiązania:: https://bibliotekanauki.pl/articles/124497.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: trace metals
roof materials
precipitation
roof runoff
Opis:: Runoff water is an important medium transporting various types of pollution originating from the atmosphere and washed out from roofing materials. The study presents a quality assessment of runoff from different roofs in the context of trace metal concentrations. The analysed rooftops were covered with copper, tar paper and ceramic tile. The quality of the rain water collected at the same time satisfies the demands of the first grade of cleanliness according to (Journal of Laws, 2016 item1187). The highest content of copper was leached from the copper roof, containing 10.23 mg∙dm^-3. In the case of zinc, the highest concentration of 15.52 mg∙dm^-3 was present in the runoff from the roof covered with thermally bonded tar paper. The amount of trace metals in the ceramic roof runoff was the lowest and only for zinc slightly exceeded 1.47 mg∙dm^-3 – the value determined for II class of purity. In the paper, the different levels of heavy metals leaching from different roofing materials have been confirmed.
Źródło:: Journal of Ecological Engineering; 2018, 19, 3; 45-51
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 45.

Tytuł:: Trace inequalities for positive semidefinite matrices
Autorzy:: Choudhury, Projesh Nath
Sivakumar, K.C.
Powiązania:: https://bibliotekanauki.pl/articles/38118377.pdf
Data publikacji:: 2017-06-01
Wydawca:: Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:: positive semidefinite matrix
group inverse
trace inequalities
Opis:: Certain trace inequalities for positive definite matrices are generalized for positive semidefinite matrices using the notion of the group generalized inverse.
Źródło:: Discussiones Mathematicae - General Algebra and Applications; 2017, 37, 1; 93-104
1509-9415
Pojawia się w:: Discussiones Mathematicae - General Algebra and Applications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 46.

Tytuł:: Palaeoenvironmental reconstruction of the Upper Visean Paprotnia Beds (Bardo Unit, Polish Sudetes) using ichnological and palaeontological data
Autorzy:: Muszer, J.
Uglik, M.
Powiązania:: https://bibliotekanauki.pl/articles/2060590.pdf
Data publikacji:: 2013
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: palaeoenvironment
taphoceonoses
trace fossils
ichnoassociations
Upper Visean
Sudetes
Opis:: In this paper the trace fossil associations and the taphocoenoses from the Upper Visean Paprotnia Beds (Bardo Unit) have been compared. Eleven ichnogenera have been recognized (Zoophycos, Chondrites, Protovirgularia, Lockeia, Palaeophycus, Nereites, Planolites, Altichnus, Paleobuprestis, cf. Thalassinoides and ?daedaloid form). A new ichnospecies Paleobuprestis sudeticus has been defined herein. It is the oldest wood-boring trace fossil observed in macroscale and the first wood-boring trace fossil preserved on the archaeocalamites stems. Based on ichnodiversity and relative abundance of trace fossils in the investigated strata three ichnoassociations have been distinguished: Zoophycos–Chondrites–Palaeophycus, Palaeophycus–Nereites and Paleobuprestis. Vertical succession of both the taphocoenoses and ichnoassociations reflects the different colonization stages of the substrate and is linked to bathymetric changes in the marine basin from offshore to nearshore conditions in warm climate at low latitude. The Paprotnia profile is a unique record of the Asbian–Brigantian transition.
Źródło:: Geological Quarterly; 2013, 57, 3; 365--384
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 47.

Tytuł:: Effect of sorbents on the content of trace elements in maize cultivated on soil contaminated with heating oil
Autorzy:: Wyszkowski, M.
Sivitskaya, V.
Powiązania:: https://bibliotekanauki.pl/articles/2082606.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: contamination
heating oil
neutralizing substances
maize
trace elements
Opis:: The aim of this study was to determine the effect of neutralizing substances on the content of trace elements in maize on soil contaminated by heating oil. For the treatments without neutralizing substances, the dependency between increasing doses of heating oil and the cadmium content of plants was direct, yet the range of changes was relatively small. Under the influence of increasing doses of heating oil, the cadmium and manganese contents increased up to a dose of 10 g of oil per kg of soil, lead up to 15 g of oil per kg of soil and chromium within the full range of its doses, as compared to the control treatment (without heating oil). Higher doses of heating oil resulted in a decrease in cadmium, lead and manganese contents in maize. All of the tested substances had a significant effect on the content of trace elements in maize. Calcium oxide, zeolite and bentonite had a more pronounced effect than compost and nitrogen on the content of trace elements in this plant. A favourable effect, restricting the content of most of them in the maize was only observed for cadmium and manganese, in contrast to lead and chromium.
Źródło:: International Agrophysics; 2019, 33, 4; 437-444
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 48.

Tytuł:: Some micro- and trace elements in selected bottled natural waters from the Polish market evaluated by electrochemical methods
Autorzy:: Opoka, W.
Szlósarczyk, M.
Maślanka, A.
Rojowski, J.
Stopa, K.
Borkowska, I.
Muszyńska, B.
Tyszka-Czochara, M.
Powiązania:: https://bibliotekanauki.pl/articles/1190181.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: natural waters
stripping voltammetry
potentiometry
trace elements
microelements
Opis:: Although beneficial properties of mineral waters are acknowledged by law in many countries, the use of water for medicinal purposes is not universally accepted. Notably numerous waters (especially mineral and curative ones) have high concentrations of mineral and trace elements. These mineral waters are common on the market and their availability is not regulated by law. Due to the hazard of overdosing, quantification of trace elements and minerals seems to be necessary. The World Health Organization, European Standards and Polish Standards recommend different methods for elemental determination, i.e. spectrometry, photometry for zinc determination, colorimetry or spectrometry for copper, and ionic chromatography for calcium, chloride and fluoride. In this paper, alternative, electrochemical methods have been applied to determine zinc, copper, calcium, chloride and fluoride in most popular natural and curative waters from southern Poland. The determined elemental content varied between 3.85-33.54 μg L-1 for zinc, 85-15.33 μg L-1 for copper, 2.8-2433.63 mg L-1 for chloride, 0.4-1.66 mg L-1 for fluoride and 11.05-478.48 mg L-1 for calcium. The voltammetric method was tested according to the validation procedures, taking into account the following parametes: linearity range, limit of detection and limit of quantification and precision. The results show that the applied electroanalytical methods are suitable for determination of the selected elements in waters of natural origin, ensuring low instrumental and analysis costs while providing results comparable with ones achieved with recommended methods.
Źródło:: Journal of Elementology; 2017, 22, 2; 463-474
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 49.

Tytuł:: A mixed assemblage of deep-sea and shelf trace fossils from the Lower Cretaceous (Valanginian) Kamchia Formation in the Troyan region, central Fore-Balkan, Bulgaria
Autorzy:: Uchman, A.
Tchoumatchenco, P.
Powiązania:: https://bibliotekanauki.pl/articles/973639.pdf
Data publikacji:: 2003
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: trace fossils
ichnology
Lower Cretaceous
Fore-Balkan
Bulgaria
Opis:: Trace fossils collected from the best outcrop of the Kamchia Formation have been analysed. There are thirteen ichnotaxa (Curvolithus simplex, Gyrochorte isp., ?Helminthoidichnites tenuis, Multina minima [second occurrence], Palaeophycus tubularis, ?Palaeophycus isp., Phycodes bilix, Phycosiphon incertum, Planolites cf. reinecki, Spongeliomorpha ?chevronensis, Squamodictyon tectiforme, Thalassinoides suevicus, Zoophycos isp.) representing different ethologic, toponomic and preservational types, and produced at different depths in the sediment. The ichnoassemblage contains a mixture of forms typical of flysch (Squamodictyon) and shelf deposits (Curvolithus, Gyrochorte). Probably, sediments of the Kamchia Formation were deposited in an offshore or deeper basin with storm deposition of sand beds and background marly sedimentation. It is possible that storm currents transported trace makers of the shelf trace fossils to the deeper sea. It is not excluded that the trace maker of Gyrochorte migrated to the deep-sea after the Jurassic. However, the simplest explanation is that the Kamchia ichnofauna represents an ecological transition between shelf and slope communities.
Źródło:: Annales Societatis Geologorum Poloniae; 2003, 73, No 1; 27-34
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 50.

Tytuł:: Trace fossils and depositional environments of the middle Turonian sandstones in the Upper Nysa Kłodzka Graben (Sudetes, Poland) revisited
Autorzy:: Chrząstek, Alina
Nowicka, Nadia
Powiązania:: https://bibliotekanauki.pl/articles/2058734.pdf
Data publikacji:: 2021
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: ichnology
trace fossils
Upper Cretaceous
Sudetes
palaeoenvironment
shoreface
Opis:: We provide the first reports of some rare trace fossils from the middle Turonian (Upper Cretaceous) of the Sudety Mountains (SW Poland, Upper Nysa Kłodzka Graben, Długopole Górne Quarry). These include burrows ?Ancorichnus isp., Asterosoma cf. ludwigae Schlirf, 2000, Asterosoma isp., cf. Phycodes isp., Dactyloidites ottoi (Geinitz, 1849), Funalichnus strangulatus (Fritsch, 1883), Phycodes cf. palmatus Hall, 1852, cf. Phycodes, Phycosiphon incertum Fischer-Ooster, 1858, ?Phycosiphon isp., Planolites beverleyensis (Billings, 1862) and borings Entobia isp. Some body fossils, bivalves ?Brachidontes sp., Lima canalifera Goldfuss, 1836, Pinna (Pinna) cretacea (Schlotheim, 1813) and Rhynchostreon suborbiculatum (Lamarck, 1801) are also reported. The trace fossil assemblage indicates a distal Skolithos ichnofacies and proximal Cruziana ichnofacies, which characterize a proximal and distal lower shoreface setting respectively. Sedimentation of the middle Turonian sandstones took place in a shallow epicontinental sea of normal salinity and a soft substrate, which was well-oxygenated under low-moderate hydrodynamic conditions. The presence of the oyster Rhynchostreon in the deposits studied suggests the influence of a warm Tethys Ocean.
Źródło:: Geological Quarterly; 2021, 65, 1; 10
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 51.

Tytuł:: Bioturbation structures of the Kropivnik Fucoid Marls (Campanian-lower Maastrichtian) of the Huwniki-Rybotycze area (Polish Carpathians)
Autorzy:: Leszczyński, S.
Powiązania:: https://bibliotekanauki.pl/articles/2058753.pdf
Data publikacji:: 2004
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: Polska
Carpathians
Upper Cretaceous
marlstone
flysch
trace fossils
Opis:: The Kropivnik Fucoid Marls of the Polish Outer Carpathians contain numerous bioturbation structures, and comprise thin-bedded sandstones, hard and soft marlstones and muddy to clayey, mainly turbiditic shales. Comparison of three sections elucidated the stratigraphic and sedimentological controls on the distribution of the bioturbation structures, which are most common on the soles of sandstone beds, and within and on the tops of beds of hard marlstone overlain by shale. Most of the bioturbation structures are taxonomically undeterminable. Nevertheless, twenty seven ichnospecies, including one new ichnospecies (Taenidium recurvum), and seven forms of trace fossils of unknown taxonomic affinity were recognised. Most ichnotaxa were observed as individual specimens. Irregular structures apparently formed by the squashing of burrows filled with fluidised fill, called here turbidichnia, are quite common in some marlstone beds in the lower part of the succession. Planolites beverleyensis and Halopoa imbricata are the most frequent trace fossils on the lower surfaces of sandstone beds. Chondrites intricatus, Planolites beverleyensis and Thalassinoides suevicus represent the most common taxa in hard marlstones. Endoreliefs of Scolicia isp. are quite frequent in the top parts of marlstone beds in some parts of the succession. Other ichnotaxa were found either rarely or as single specimens only. The burrowing depth, reaching 15 cm below the tops of normally-graded rhythmic units, together with the relatively rich trace fossil assemblage and common occurrence of Planolites and Thalassinoides, is interpreted as indicating fully oxic conditions at the bottom of the sedimentary basin.
Źródło:: Geological Quarterly; 2004, 48, 1; 35--60
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 52.

Tytuł:: New ichnotaxa of vertebrate burrows from the Salt Wash Member, Upper Jurassic Morrison Formation, south-eastern Utah (USA)
Autorzy:: Raisanen, D. C. W.
Hasiotis, S. T.
Powiązania:: https://bibliotekanauki.pl/articles/191391.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: ichnofossils
continental
palaeosols
fossorial
trace fossils
domichnia
polychresichnia
Opis:: Large-diameter burrows in pedogenically modified floodplain deposits in the Salt Wash Member, Upper Jurassic Morrison Formation, southeast Utah, U.S.A., are interpreted to have been constructed by mammals. They are distinguished as Daimonelix martini isp. nov., which exhibits a helical shaft down to a horizontal tunnel with a mean depth of 71.4 cm from the inferred palaeosurface. The mean path length of the shaft is 99.4 cm; mean dip of the whorls is 39°. The mean tunnel length is 42.3 cm. Shafts and tunnels are oval or elliptical in cross section with the horizontal diameter slightly larger than the vertical (ratio of -1.26:1); the shaft averages 9.2 cm wide and 7.3 cm tall; the tunnel averages 10.7 cm wide and 10.7 cm tall. The tracemaker was likely a fossorial mammal that used the burrow as a den to shelter when not foraging above ground; the burrows are domichnia. The other from the same member is Fractisemita henrii igen. nov. et isp. nov., a network of interconnected shafts and tunnels; shaft and tunnel segments are straight, curved, or helical. The segments are at angles of 0-89°; mean length of a section is 30.7 cm. The cross sections of all elements are oval or elliptical; the mean width is 6.3 cm and the mean height is 4.9 cm (ratio of -1.29:1). The burrows are interpreted as the work of a social mammal and represent multiple tracemaker behaviours: protection, denning, foraging, and possibly food storage. The burrows are polychresichnia. Surficial morphologic features preserved on the burrow walls of both types are interpreted as scratches made by the tracemaker claws and/or teeth. The burrows reveal the actions of small vertebrates not recorded by body fossils showing potential partitioning of the environment and availability of resources for small vertebrates.
Źródło:: Annales Societatis Geologorum Poloniae; 2018, 88, 2; 181-202
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 53.

Tytuł:: Trace fossils from Silurian and Devonian turbidites of the Chauvay area, southern Tien Shan, Kyrgyzstan
Autorzy:: Warchoł, M.
Leszczyński, S.
Powiązania:: https://bibliotekanauki.pl/articles/191469.pdf
Data publikacji:: 2009
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: Tien Shan
Kyrgyzstan
Silurian-Devonian
turbidites
trace fossils
Opis:: The siliciclastic turbidite successions (Pul’gon and Dzhidala Formations) that crop out in the eastern part of the Chauvay River valley, are marked on geological maps as a belt of terrigenous deposits of Silurian–Devonian age. They resemble deposits of overbank areas and depositional lobes of deep sea fans, and display common trace fossils particularly on lower surfaces of sandstone beds. Sixteen ichnotaxa representing four morphological groups have been distinguished. The trace fossil assemblages suggest their affiliation to the Nereites ichnofacies. Various branched, preturbidite forms predominate in both examined units, although the assemblages of individual units differ slightly in composition. In the Pulg’on Formation, small, densely distributed burrows commonly occur on lower surfaces of sandstone beds. Shallow burrowing depth together with relatively low diversity trace fossil assemblages indicate lowered oxygenation of the sea floor.
Źródło:: Annales Societatis Geologorum Poloniae; 2009, 79, No 2; 1-11
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 54.

Tytuł:: Zmiany zawartości pierwiastków śladowych w wierzbach (Salix viminalis) pod wpływem stymulacji zrzezów światłem spójnym
Changes in the contents of trace elements in willow (Salix viminalis) as result of stimulation of cuttings with coherent light
Autorzy:: Jakubiak, M.
Śliwka, M.
Powiązania:: https://bibliotekanauki.pl/articles/126219.pdf
Data publikacji:: 2010
Wydawca:: Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:: fotostymulacja
Salix viminalis
pierwiastki śladowe
photostimulation
trace elements
Opis:: Szybko rosnące wierzby krzewiaste, jako rośliny pionierskie, stosuje się do zagospodarowania terenów zdegradowanych. Fitoremadiacyjne właściwości wierzb są również od wielu lat wykorzystywane w roślinnych oczyszczalniach ścieków. Nowym zastosowaniem wierzby wiciowej jest jej wykorzystanie jako surowca energetycznego. Biomasę można spalać w formie zrębków, brykietów i pelet. Przyspieszenie przyrostu biomasy, zwiększenie odporności na czynniki stresowe oraz możliwość regulacji pobierania pierwiastków śladowych mogłyby podnieść przydatność wierzb w inżynierii środowiska. Prowadzone badania wykazały wiele możliwości zastosowania biotechnologii laserowej w inżynierii środowiska. Interdyscyplinarne doświadczenia potwierdziły, że efektem stosowania naświetlania nasion i sadzonek roślin światłem laserów małych mocy może być przyspieszenie ich wzrostu, zwiększenie odporności na zanieczyszczenia czy zmiana stopnia kumulacji w tkankach niektórych metali, jak np. ołów i kadm. Właściwości te mają znaczenie przy biologicznej rekultywacji skażonych gruntów. Przedstawiony eksperyment miał na celu sprawdzenie różnic w kumulacji pierwiastków śladowych w liściach wierzb wiciowych, których zrzezy przed posadzeniem zostały poddane działaniu monochromatycznego, spójnego światła emitowanego przez lasery małych mocy. Stymulacja światłem miała charakter przerywany, a algorytmy fotostymulacji zostały dobrane na podstawie wcześniejszych doświadczeń. Otrzymane wyniki potwierdziły, że przy zastosowaniu stymulacji laserowej o właściwie dobranych parametrach, można zmienić stężenie pierwiastków śladowych w biomasie liści.
The fast growing willows are pioneer plants and are often used in land reclamation process. Phytoremediation capabilities of willows have been utilized for many years in the sewage treatment and water purification in hydrobotanical wastewater treatment plants. However, the use of willow as an energy source is a new application. Dry biomass may be burned in the form of chips, briquettes and pellets. The acceleration of the biomass growth, increased resistance to stress factors and the ability to regulate the absorption of trace elements could improve the usefulness of willow in environmental engineering. Laser light applications for biotechnology have been reported in a number of previous research studies in environmental engineering. Interdisciplinary research studies on the application of low intensity laser stimulation of plants seeds and seedlings proved, that effects of photostimulation may increase biomass production and plants resistance to environmental pollutions and unfavorable environmental factors as well as change of trace elements concentration in their tissues eg Pb, Cd. These properties are important for biological reclamation of contaminated industrial lands. The purpose of presented experiment was to validate the possibility of applying photostimulation for changing the accumulation of trace elements in biomass of willow leaves. Willow cuttings, before being planted, were subjected to monochromatic, coherent light emitted by low power lasers. The light stimulation was intermittent, photostimulation algorithms have been selected on the basis of previous experience. The results confirmed that the application of laser stimulation, with the well-chosen parameters, can change the concentration of trace elements in the leaf biomass.
Źródło:: Proceedings of ECOpole; 2010, 4, 2; 389-395
1898-617X
2084-4557
Pojawia się w:: Proceedings of ECOpole
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 55.

Tytuł:: Blood lead, cadmium and mercury among children from urban, industrial and rural areas of Fez Boulemane Region (Morocco): Relevant factors and early renal effects
Autorzy:: Laamech, Jawhar
Bernard, Alfred
Dumont, Xavier
Benazzouz, Bouchra
Lyoussi, Badiaa
Powiązania:: https://bibliotekanauki.pl/articles/2178863.pdf
Data publikacji:: 2014-08-06
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:: exposure
trace elements
biomonitoring
children
determinants
renal effects
Opis:: Objectives: To describe blood lead (Pb-B), cadmium (Cd-B) and mercury (Hg-B) levels in children living in urban, industrial and rural areas in Fez city (north of Morocco) and to identify the determinants and some renal effects of exposure. Material and Methods: The study was conducted from June 2007 to January 2008 in 209 school children (113 girls, 96 boys), aged 6-12 years, from urban, industrial and rural areas in Fez city. Interview and questionnaires data were obtained. Blood and urinary samples were analyzed. Results: The mean of blood lead levels (Pb-B) in our population was 55.53 μg/l (range: 7.5-231.1 μg/l). Children from the urban area had higher blood lead levels (BLLs) mean (82.36 μg/l) than children from industrial and rural areas (48.23 and 35.99 μg/l, respectively); with no significant difference between boys and girls. BLLs were associated with traffic intensity, passive smoking and infancy in the urban area. The mean of blood cadmium levels (BCLs) was 0.22 μg/l (range: 0.06-0.68 μg/l), with no difference between various areas. Rural boys had higher BCLs mean than rural girls, but no gender influence was noticed in the other areas. BCLs were associated with the number of cigarettes smoked at children's homes. The blood mercury levels (BMLs) mean was 0.49 μg/l (range: 0.01-5.31 μg/l). The BMLs mean was higher in urban and industrial areas than in the rural area with no gender-related difference. BMLs were associated with amalgam fillings and infancy in the urban area. About 8% of the children had BLLs ≥ 100 μg/l particularly in the urban area, microalbuminuria and a decrease in height were noticed in girls from the inner city of Fez and that can be related to high BLLs (89.45 μg/l). Conclusions: There is a need to control and regulate potential sources of contamination by these trace elements in children; particularly for lead.
Źródło:: International Journal of Occupational Medicine and Environmental Health; 2014, 27, 4; 641-659
1232-1087
1896-494X
Pojawia się w:: International Journal of Occupational Medicine and Environmental Health
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 56.

Tytuł:: Compaction-related style of Rusophycus preservation from Furongian (Upper Cambrian) of Holy Cross Mountains (Poland)
Autorzy:: Sadlok, G.
Powiązania:: https://bibliotekanauki.pl/articles/191759.pdf
Data publikacji:: 2013
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: Rusophycus
trace fossil
preservation
compaction
Cambrian
Furongian
Polska
Opis:: In general, the trace fossil Rusophycus, preserved as a concave-upward structure on the top of a bed, is considered to be a fossilized marking, made by a trace maker. The structures described from the Cambrian (Furongian) of central Poland are genetically related to Rusophycus. However, despite their occurrence on the tops of beds, they are not fossilized traces, but compaction-related features, resulting from differential sandstone and mudstone compaction with possible mediation by organic-rich, heterolithic sediments. The preservation of these structures probably was influenced by biofilms or biomats.
Źródło:: Annales Societatis Geologorum Poloniae; 2013, 83, 4; 317-327
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 57.

Tytuł:: Trace fossils from Silurian and Devonian turbidites of the Chauvay area, southern Tien Shan, Kyrgyzstan
Autorzy:: Warchoł, M.
Leszczyński, S.
Powiązania:: https://bibliotekanauki.pl/articles/191868.pdf
Data publikacji:: 2009
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: Tien Shan
Kyrgyzstan
Silurian-Devonian
turbidites
trace fossils
Opis:: The siliciclastic turbidite successions (Pul’gon and Dzhidala Formations) that crop out in the eastern part of the Chauvay River valley, are marked on geological maps as a belt of terrigenous deposits of Silurian-Devonian age. They resemble deposits of overbank areas and depositional lobes of deep sea fans, and display common trace fossils particularly on lower surfaces of sandstone beds. Sixteen ichnotaxa representing four morphological groups have been distinguished. The trace fossil assemblages suggest their affiliation to the Nereites ichnofacies. Various branched, preturbidite forms predominate in both examined units, although the assemblages of individual units differ slightly in composition. In the Pulg’on Formation, small, densely distributed burrows commonly occur on lower surfaces of sandstone beds. Shallow burrowing depth together with relatively low diversity trace fossil assemblages indicate lowered oxygenation of the sea floor.
Źródło:: Annales Societatis Geologorum Poloniae; 2009, 79, No 1; 1-11
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 58.

Tytuł:: The Drazin inverse of a class of partitioned matrices
Autorzy:: Kanan, Asmaa M.
Powiązania:: https://bibliotekanauki.pl/articles/1030682.pdf
Data publikacji:: 2020
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Drazin inverse
Partitioned matrix
Rank
Trace of matrix
Opis:: In this work, we give the representations of the Drazin inverse for the partitioned matrix [■(A_1&A_2@O&A_3 )] with A_1 and A_3 square and singular under the conditions that rank(A_1 )=rank(A_3 )=1, Trace(A_1)≠0 and Trace(A_3)≠0, and then we give the representations of the Drazin inverse for the partitioned EP matrix [■(A_1&A_2@A_3&A_4 )] with A_1 is square and non-singular under the conditions that rank(A_1 )=rank([■(A_1&A_2@A_3&A_4 )]), and [■(A_1&A_2@A_3&A_4 )]=[■(I@P)] A_1 [■(I&Q)] where P=A_3 〖A_1〗^(-1) and Q= 〖A_1〗^(-1) A_2. Also, we give the representations of the Drazin inverse for the partitioned matrix [■(A_1&A_2@A_3&A_4 )] with A_1 square and singular under the conditions that rank(A_1 )=rank([■(A_1&A_2@A_3&A_4 )])=1, Trace([■(A_1&A_2@A_3&A_4 )])≠0.
Źródło:: World Scientific News; 2020, 139, 2; 173-185
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 59.

Tytuł:: Trace metal, FTIR and phytochemical analysis of Viscum album leaves harvested from Pentaclethra macrophylla
Autorzy:: Chizoruo, Ibe Francis
Onyekachi, Ibe Bridget
Ebere, Enyoh Christian
Powiązania:: https://bibliotekanauki.pl/articles/1076676.pdf
Data publikacji:: 2019
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: FTIR
Pentaclethra macrophylla
Viscum album
phytochemicals
trace metal
Opis:: The leaves of mistletoe (Viscum album) harvested from oil bean tree (Pentaclethra macrophylla) in Imo State South Eastern Nigeria was studied. The study was aimed at carrying out trace metal, Fourier Transform Infra-red (FTIR) and phytochemical analysis of ethanol leave extracts of Viscum album harvested from Pentaclethra macrophylla. The sample for trace metal analysis was digested with a mixture of concentrated HNO3 and HClO4 at a ratio of 1:1 for 24 hours. Ethanol was then used to extract the sample meant for FTIR and phytochemical analysis. Herein, trace metal determination indicates the presence of Mg, Zn, Fe, Cu and Cr, and the concentration of Ca and Mn is at < 0.00 mg/kg. The result of the phytochemical screening demonstrates the presence of flavonoids, alkaloids, phenols, saponins and tannins. FTIR analysis confirmed the presence of alcohols, amides, aromatics and carbonyl compounds in ethanol extracts of Viscum album harvested from Pentaclethra macrophylla. The presence of some trace metals and phytochemicals, as well as some important functional groups in the plant sample, as indicated by the result of the study, authenticates its use in traditional medicine.
Źródło:: World News of Natural Sciences; 2019, 25; 61-71
2543-5426
Pojawia się w:: World News of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 60.

Tytuł:: Middle Turonian trace fossils from the Bystrzyca and Długopole sandstones in the Nysa Kłodzka Graben (Sudetes, SW Poland)
Autorzy:: Chrząstek, A.
Powiązania:: https://bibliotekanauki.pl/articles/2060555.pdf
Data publikacji:: 2013
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: trace fossils
ichnofacies
Cretaceous
palaeoenvironments
Middle Turonian
Sudetes
Opis:: The Middle Turonian sediments of the Nysa Kłodzka Graben (Bystrzyca Sandstone in the Stara Bystrzyca outcrop and the Długopole Sandstone in Długopole Górne Quarry) contain trace fossils, which include Curvolithus simplex, ?Macaronichnus isp., Ophiomorpha nodosa, Ophiomorpha isp., Palaeophycus tubularis, Thalassinoides cf. paradoxicus, T. suevicus and Thalassinoides isp. The assemblage of trace fossils points to the proximal Cruziana ichnofacies, that characterizes the distal lower shoreface and the archetypal Cruziana ichnofacies, typical of upper offshore settings. The trace fossils evidence implies that sedimentation took place in a shallow basin with periods of a sudden sediment input, good oxygenation and normal salinity. The Bystrzyca and Długopole sandstones are deposits of the shallow epicontinental sea that were deposited between the fair-weather and storm-wave base, in the distal lower shoreface–upper offshore setting. The Bystrzyca Sandstone is recognized as storm-originated deposits, whereas the Długopole Sandstone is probably the part of prograding “accumulation terrace”. The source of material for the sandstone was the East Sudetic Island and probably also the Orlica–Bystrzyca Uplift. The studied sandstones are related to a regression that started in the early/middle Middle Turonian and caused a relative uplift of the surrounding land.
Źródło:: Geological Quarterly; 2013, 57, 3; 443--466
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 61.

Tytuł:: New finds of Rusophycus from the lower Cambrian Ociesęki Sandstone Formation (Holy Cross Mountains, Poland)
Autorzy:: Stachacz, M.
Powiązania:: https://bibliotekanauki.pl/articles/2058996.pdf
Data publikacji:: 2012
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: Holy Cross Mountains
Lower Cambrian
trace fossils
Rusophycus
Opis:: The Ociesęki Sandstone Formation represents the Holmia-Schmidtiellus and the Protolenus-Issafeniella zones. Seven ichnospecies of Rusophycus, including Rusophycus exsilius isp. nov, are recognized in this formation. Moreover, Rusophycus ispp. A, B, C are recognized. The diagnoses for R. dispar, R. crebrus and R. magnus have been emended and the stratigraphic range of R. versans has been extended. The presence of Rusophycus dispar may suggest a palaeozoogeographical connection between the Małopolska Block, the Baltica palaeocontinent and the Laurentia palaeocontinent.
Źródło:: Geological Quarterly; 2012, 56, 2; 237-248
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 62.

Tytuł:: Geochemistry of waters and bottom sediments in landslide lakes in Babiogórski National Park
Autorzy:: Sala, Dariusz
Rzepa, Grzegorz
Powiązania:: https://bibliotekanauki.pl/articles/2086487.pdf
Data publikacji:: 2011
Wydawca:: Polskie Towarzystwo Mineralogiczne
Tematy:: bottom sediments
water
trace elements
Babiogórski National Park
Opis:: The aim of this work was to assess the contamination of the landslide lakes located within Babiogórski National Park. For this purpose, samples of water and bottom sediment from 12 lakes were collected. Chemical analyses of the waters (including main cation and anion concentrations, trace-metal levels and selected physicochemical parameters) and of the sediments (including heavy metals) were performed. The waters are acidic to neutral and are characterized by low mineralization. Concentrations of trace elements are commonly low. Elevated levels of Fe, Mn and Al are probably related to natural geochemical processes. The sediments are strongly contaminated by Cd, whereas other trace metals levels are at their hydrogeochemical background. The high level of Cd contamination is most probably related to long-range industrial emissions.
Źródło:: Mineralogia; 2011, 42, 1; 63--72
1899-8291
1899-8526
Pojawia się w:: Mineralogia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 63.

Tytuł:: Geochemistry of waters and bottom sediments in landslide lakes in Babiogórski National Park
Autorzy:: Sala, D.
Rzepa, G.
Powiązania:: https://bibliotekanauki.pl/articles/2086539.pdf
Data publikacji:: 2011
Wydawca:: Polskie Towarzystwo Mineralogiczne
Tematy:: bottom sediments
water
trace elements
Babiogórski National Park
Opis:: The aim of this work was to assess the contamination of the landslide lakes located within Babiogórski National Park. For this purpose, samples of water and bottom sediment from 12 lakes were collected. Chemical analyses of the waters (including main cation and anion concentrations, trace-metal levels and selected physicochemical parameters) and of the sediments (including heavy metals) were performed. The waters are acidic to neutral and are characterized by low mineralization. Concentrations of trace elements are commonly low. Elevated levels of Fe, Mn and Al are probably related to natural geochemical processes. The sediments are strongly contaminated by Cd, whereas other trace metals levels are at their hydrogeochemical background. The high level of Cd contamination is most probably related to long-range industrial emissions.
Źródło:: Mineralogia; 2011, 42, 1; 63--72
1899-8291
1899-8526
Pojawia się w:: Mineralogia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 64.

Tytuł:: Rejestracja śladów daktyloskopijnych systemem TrasoScan
Registration of fingerprints with TrasoScan System
Autorzy:: Rogoża, Ewa
Drzewiecka, Katarzyna
Powiązania:: https://bibliotekanauki.pl/articles/23050945.pdf
Data publikacji:: 2021
Wydawca:: Centralne Laboratorium Kryminalistyczne Policji
Tematy:: TrasoScan
ślady daktyloskopijne
fluorescencja śladów
fingerprints
trace fluorescence
Opis:: Ciągły rozwój metod wizualizacji śladów wymusił tworzenie nowych, specjalistycznych urządzeń do ich rejestracji. W ostatnich latach na rynku kryminalistycznym pojawił się system TrasoScan do rejestracji i obróbki śladów kryminalistycznych: traseologicznych, daktyloskopijnych lub dokumentów. Obecnie najczęściej wykorzystywany jest w badaniach traseologicznych. Niemniej jednak z dużym powodzeniem może być zastosowany do rejestracji śladów linii papilarnych na foliach daktyloskopijnych, odlewach silikonowych, zabezpieczonych wraz z podłożem, bądź śladów ujawnionych metodami chemicznymi. W niniejszym artykule przedstawiono szerokie spektrum możliwości TrasoScanu w zakresie rejestracji różnego rodzaju śladów daktyloskopijnych.
The continuous development of methods of trace visualization entailed the development of new, specialized trace registration devices. In recent years, the TrasoScan System for registration and processing of forensic traces: traseological traces, fingerprints or documents has appeared on the forensic market. Currently, this device is most often applied to traseological examinations. Notwithstanding the above, it can be successfully used to register fingerprints on dactyloscopic films, silicone casts, those secured together with a surface, or traces revealed by chemical methods. This article presents the broad spectrum of TrasoScan’s capabilities for registering fingerprints of various types.
Źródło:: Problemy Kryminalistyki; 2021, 313; 13-19(pol), 42-48(eng)
0552-2153
Pojawia się w:: Problemy Kryminalistyki
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 65.

Tytuł:: On the Möbius invariant principal functions of Pincus
Autorzy:: Ghosh, Sagar
Misra, Gadadhar
Powiązania:: https://bibliotekanauki.pl/articles/29519754.pdf
Data publikacji:: 2024
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: hyponormal operators
multiplicity
trace formula
homogeneous operators
principal function
Opis:: In this semi-expository short note, we prove that the only homogeneous pure hyponormal operator T with rank (T^∗T − TT^∗) = 1, modulo unitary equivalence, is the unilateral shift.
Źródło:: Opuscula Mathematica; 2024, 44, 3; 391-407
1232-9274
2300-6919
Pojawia się w:: Opuscula Mathematica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 66.

Tytuł:: Trace fossils from the Lower Jurassic Ciechocinek Formation, SW Poland
Autorzy:: Leonowicz, P.
Powiązania:: https://bibliotekanauki.pl/articles/2061349.pdf
Data publikacji:: 2008
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: trace fossils
fine-grained clastics
brackish environment
Lower Jurassic
Opis:: Mud-silt deposits of the Lower Jurassic Ciechocinek Formation from the Czestochowa-Wielun region are characterized by a low diversity ichnofossil association, which includes the ichnogenera Planolites, Palaeophycus, Helminthopsis, Gyrochorte, Protovirgularia and Spongeliomorpha as well as some unidentified pascichnia. This association points to deposition in a low-energy brackish environment with poorly oxygenated sediments. Changes of seafloor oxygenation, influenced by periodical bottom currents, resulted in various bioturbation intensities, which range from none to high.
Źródło:: Volumina Jurassica; 2008, 6, 1; 89-98
1896-7876
1731-3708
Pojawia się w:: Volumina Jurassica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 67.

Tytuł:: Trace elements and REE enrichment at Seboah Hill, SW Egypt
Autorzy:: Hassan, Kamaleldin M.
Powiązania:: https://bibliotekanauki.pl/articles/127605.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Mineralogiczne
Tematy:: Oversaturated peralkaline rocks
trace elements
REE
thorium/uranium anomalies
Opis:: Seboah Hill - a small body of peralkaline granite (< 0.1 km2) in south-western Egypt containing aegirine minerals ± magnesiohornblende ± riebeckite, cut by dikes of riebeckite-aegirine rhyolite, and exhibiting high radioactivity in veins of K-feldspar-aegirine-chalcedony-quartz ± trace hematite ± trace goethite was sampled and analyzed using inductively coupled plasma methods. Whole-rock chemical compositions of 5 granite, 3-rhyolitedike and 10 radioactive vein samples are presented. Of special significance is the enrichment of trace elements and rare earth elements (REE) in the radioactive veins. These include up to 6081 ppm Zr, 4252 ppm Ce, 1514 ppm Nd, 1433 ppm La, 1233 ppm Nb, 875 ppm Y, 388 ppm Pr, 350 ppm Th, 222 ppm Sm, 189 ppm Gd, 159 ppm Dy, 153 ppm Hf, 83 ppm Er, 76 ppm Yb and 58 ppm U. The chondrite-normalized patterns of REE in all samples show only limited variation and have negative europium (Eu) anomalies. These findings suggest that the sources of the REE are genetically related. Values of the Eu anomalies vary from 0.38-0.41 for the radioactive veins, 0.39-0.53 for the granite and 0.31-0.44 for the rhyolite dikes. Eu variations are consistent for different paragentic stages.
Źródło:: Mineralogia; 2018, 49, 1/4; 47-65
1899-8291
1899-8526
Pojawia się w:: Mineralogia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 68.

Tytuł:: Lithology and chemical composition of a Neoholocene palaeochannel infill within the Białka River valley, Kraków-Częstochowa Upland
Autorzy:: Cybul, Piotr
Okupny, Daniel
Powiązania:: https://bibliotekanauki.pl/articles/2037008.pdf
Data publikacji:: 2021-12-23
Wydawca:: Łódzkie Towarzystwo Naukowe
Tematy:: valley evolution
flood phases
trace elements
Neoholocene
southern Poland
Opis:: Mires are common in the landscape of the Kraków-Częstochowa Upland, but they are rarely explored by Earth scientists. In addition to numerous morphological depressions filled with biogenic sediments, mires also occur within river valley, usually upstream from gaps. The intensification of marsh formation within the Białka River valley (left-side tributary of Krztynia, upper Pilica catchment) may have been influenced by the occurrence of poorly permeable, fluvial silty sands in the bedrock. Infilling of the studied depression at Młyny was accomplished via fluvial sedimentation characterised by local aggradation interrupted by carbonate precipitation, and sedentation of autochthonous organic matter. The former sediment type is represented mostly by mineral-organic aggraded silt with a dominant fine fraction, occurring mostly in the basal part of the studied core, and sand fraction in the top interval of the core, superjacent to calcareous-clay gyttja. Ash content reaches up to 87% and Fe concentrations are periodically elevated (30–48 mg/g). Calcium carbonate (CaCO3) also occurs in the studied oxbow mire deposit, exceeding 40% in some intervals, which indicates that a more important part was played by groundwaters in the water balance of the Białka valley. This periods were periodically interrupted due to higher flooding activity and recorded by mineral sediments characterised by specific granulometric composition, and an elevated percentage of organic matter deposited as rhythmists. Elevated concentrations of trace elements noted in a horizon dated at 1885±105 BP by means of radiocarbon dating may point to human impact on the environment due to the adaptation of economy to local conditions. The geochemical record of human activity is corroborated by archaeological data from various parts of the Białka valley catchment. The reason for the concentration of trace elements being highest in the top interval of the studied core is the intense economic development of Silesia-Kraków region, and the associated deforestation, mining and metallurgy.
Źródło:: Acta Geographica Lodziensia; 2021, 111; 109-122
0065-1249
Pojawia się w:: Acta Geographica Lodziensia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 69.

Tytuł:: Ichnofossil assemblages and palaeosols of the Upper Triassic Chinle Formation, south-eastern Utah (USA): Implications for depositional controls and palaeoclimate
Autorzy:: Fischer, J. S.
Hasiotis, S. T.
Powiązania:: https://bibliotekanauki.pl/articles/973435.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: continental
trace fossils
groundwater profile
ichnology
ichnocoenoses
ichnopedofacies
Mesozoic
Opis:: The Upper Triassic Chinle Formation in the Stevens Canyon area in south-eastern Utah represents fluvial, palustrine, and lacustrine strata deposited in a continental back-arc basin on the western edge of Pangea. Previous investigations interpreted a megamonsoonal climate with increasing aridity for the Colorado Plateau towards the end of the Triassic. In this study, we systematically integrate ichnological and pedological features of the Chinle Formation into ichnopedofacies to interpret palaeoenvironmental and palaeoclimatic variations in the north-eastern part of the Chinle Basin. Seventeen ichnofossil morphotypes and six palaeosol orders are combined into twelve ichnopedofacies, whose development was controlled by autocyclic and allocyclic processes and hydrology. Ichnopedofacies are used to estimate palaeoprecipitation in conjunction with appropriate modern analogue latitudinal and geographic settings. In the north-east Chinle Basin, annual precipitation was -1100-1300 mm in the Petrified Forest Member. Precipitation levels were >1300 mm/yr at the base of the lower Owl Rock Member, decreased to -700-1100 mm/yr, and then to -400-700 mm/yr. Two drying upward cycles from -1100 mm/yr to -700 mm/yr occurred in the middle and upper part of the Owl Rock Member. In the overlying Church Rock Member, precipitation decreased from -400 mm/yr at the base of the unit to -25-325 mm/yr at the end of Chinle Formation deposition. Ichnopedofacies indicate monsoonal conditions persisted until the end of the Triassic with decreasing precipitation that resulted from the northward migration of Pangea. Ichnopedofacies in the northeast Chinle Basin indicate both long-term drying of climate and short-term, wet-dry fluctuations.
Źródło:: Annales Societatis Geologorum Poloniae; 2018, 88, 2; 127- 162
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 70.

Tytuł:: Analiza popiołów lotnych pod kątem uzyskania z nich pierwiastków ziem rzadkich
Analysis of fly ash for obtaining rare earth elements
Autorzy:: Wdowin, M.
Franus, M.
Powiązania:: https://bibliotekanauki.pl/articles/282510.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Tematy:: REE
popiół lotny
pierwiastki śladowe
fly ash
trace elements
Opis:: W pracy przedstawiono wyniki badań popiołów lotnych otrzymywanych ze spalania węgla kamiennego (Próbka 1) i brunatnego (Próbka 2) w aspekcie pozyskiwania z nich pierwiastków ziem rzadkich (REE). Na wybranych próbkach przeprowadzono analizy XRD i SEM-EDS celem określenia ich składu mineralnego oraz chemiczne, które pozwoliły określić ilość pierwiastków głównych, śladowych oraz pierwiastków ziem rzadkich. Badane popioły w składzie mineralnym posiadają głównie szkliwo glinokrzemianowe, kwarc oraz w przypadku Próbki 1: mullit, magnetyt i hematyt, natomiast w Próbce 2 stwierdzono: wapno, kalcyt, anhydryt, pla- gioklazy. Analizując ilość pierwiastków ziem rzadkich oba badane popioły zawierają w sobie stosunkowo wysokie ich ilości (rzędu 450 ppm).Większe zawartości REE posiada popiół z węgla brunatnego. Spośród badanych pierwiastków ziem rzadkich największe ilości zanotowano dla ceru (110 ppm – Próbka 1, 142 ppm Próbka 2), lantanu (55 ppm – Próbka 1, 76 ppm – Próbka 2), neodymu (49 ppm – Próbka 1, 69 ppm – Próbka 2) i itru (47 ppm Próbka 1, 63 ppm – Próbka 2). Zawartości pierwiastków ziem rzadkich w badanych popiołach lotnych są zbliżone do wyników uzyskanych przez innych autorów dla tego typu popiołów, dlatego też mogą one stanowić potencjalne źródło pozyskiwania z nich REE.
This paper presents the results of efforts to acquire rare earth elements from fly ash derived from burning bituminous (Sample 1) and lignite (Sample 2) coals. On selected samples, analysis of XRD and SEM-EDS was carried out to determine their mineral composition, while chemical analyses made it possible to determine the composition of major trace elements and rare earth elements. Test ashes are composedmainly of aluminosilicate, quartz, and in the case of Sample 1, mullite, magnetite, and hematite. Sample 2 also contained lime, calcite, anhydrite, and plagioclase. Both tested ashes contained relatively high quantities of rare earths (about 450 ppm). Greater content was recorded for the ash from lignite. Among the studied rare earth elements, the largest quantities were recorded for cerium (110 ppm Sample 1, 142 ppm – Sample 2), lanthanum (55 ppm Sample 1, 76 ppm Sample 2), neodymium (49 ppm Sample 1, 69 ppm Sample 2), and yttrium (47 ppm – Sample 1, 63 ppm Sample 2). The content of rare earth elements in the studied fly ashes are similar to the results obtained by other authors for this type of ash; they may therefore be a potential source for REE acquisition.
Źródło:: Polityka Energetyczna; 2014, 17, 3; 369-380
1429-6675
Pojawia się w:: Polityka Energetyczna
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 71.

Tytuł:: Parasitic gastropod bioerosion trace fossil on Cenomanian oysters from Le Mans, France and its ichnologic and taphonomic context
Autorzy:: BRETON, GÉRARD
WISSHAK, MAX
NÉRAUDEAU, DIDIER
MOREL, NICOLAS
Powiązania:: https://bibliotekanauki.pl/articles/945407.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:: gastropoda
ostreidae
trace fossil
taphonomy
bioerosion
cenomanian
paris basin
Opis:: We describe and name Loxolenichnus stellatocinctus Breton and Wisshak igen. et isp. nov., a bioerosion trace fossil on an Upper Cenomanian oyster from Le Mans (France). This trace is attributed here to a parasitic gastropod. The characteristics of this ichnospecies are a combination of one or several, vertical or oblique, complete penetrations, and an asymmetrical attachment etching (fixichnion) with a diagnostic set of stellate grooves increasingly distinct towards the margin of the trace. By including two former Oichnus ichnospecies, Loxolenichnus halo comb. nov. and Loxolenichnus taddei comb. nov., Oichnus, is now constrained to pure predation traces (praedichnia). The numerous oysters collected from the Marnes à Pycnodonte biauriculata Formation show associated epibionts and encrusters as well as borers and scrapers. Encrusters comprise 24 taxa while bioerosion trace fossils comprise 17 ichnotaxa ranging from very rare (< 0.1%) to quite abundant (81%). The taphonomic history leading to an ex-situ condensation of these oysters is complex. Both the Gnathichnus and Entobia ichnofacies are represented on the shellgrounds, presumably alternatingly.
Źródło:: Acta Palaeontologica Polonica; 2017, 62, 1; 45-57
0567-7920
Pojawia się w:: Acta Palaeontologica Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 72.

Tytuł:: Human traces in the bryophyte flora of the summit region of Karkonosze Mts [Polish side]
Autorzy:: Fudali, E
Powiązania:: https://bibliotekanauki.pl/articles/59245.pdf
Data publikacji:: 2007
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: human trace
bryophyte
flora
summit region
Karkonosze Mountains
synanthropization
Opis:: Based on results of the bryofloristic investigations carried out in 2006 along tourist roads and around mountain chalets the problem of bryophyte response to the tourist utilization of the summit region of Karkonosze Mts is discussed here. The hypothesis that introduction of cement as building material might have caused the income and spread of subneutral or basiphilous ruderal species in that naturally acidic region was formulated and tested. In result 45 species were found, of which the majority do not occur in natural sites in the Karkonosze Mts. Among them 20 species are convinced to be highly hemerophilous. Most of the found species were eurytopic, only 14 prefered subneutral or basic substrata. Many of them produced sporogonia, what indicates high reproduction potential. It seems that the phenomenon of synanthropisation is limited mainly to places in which cement (as mortar or concrete) has been used. The list of bryophytes found around all the anthropogenic sites and along the tourist roads in the summit region of Polish part of the massif with brief characteristics of their ecological preferences has been included.
Źródło:: Acta Societatis Botanicorum Poloniae; 2007, 76, 4; 345-349
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Tytuł:: On the lattice of congruences on inverse semirings
Autorzy:: Bhuniya, Anwesha
Bhuniya, Anjan
Powiązania:: https://bibliotekanauki.pl/articles/728800.pdf
Data publikacji:: 2008
Wydawca:: Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:: inverse semirings
trace
kernel
Clifford congruence
least Clifford congruence
Opis:: Let S be a semiring whose additive reduct (S,+) is an inverse semigroup. The relations θ and k, induced by tr and ker (resp.), are congruences on the lattice C(S) of all congruences on S. For ρ ∈ C(S), we have introduced four congruences $ρ_{min}, ρ_{max}, ρ^{min}$ and $ρ^{max}$ on S and showed that $ρθ = [ρ_{min},ρ_{max}]$ and $ρκ = [ρ^{min},ρ^{max}]$. Different properties of ρθ and ρκ have been considered here. A congruence ρ on S is a Clifford congruence if and only if $ρ_{max}$ is a distributive lattice congruence and $ρ^{max}$ is a skew-ring congruence on S. If η (σ) is the least distributive lattice (resp. skew-ring) congruence on S then η ∩ σ is the least Clifford congruence on S.
Źródło:: Discussiones Mathematicae - General Algebra and Applications; 2008, 28, 2; 193-208
1509-9415
Pojawia się w:: Discussiones Mathematicae - General Algebra and Applications
Dostawca treści:: Biblioteka Nauki

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Tytuł:: The Clifford semiring congruences on an additive regular semiring
Autorzy:: Bhuniya, A.
Powiązania:: https://bibliotekanauki.pl/articles/729215.pdf
Data publikacji:: 2014
Wydawca:: Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:: additive regular semiring
skew-ring
trace
kernel
Clifford congruence
Opis:: A congruence ρ on a semiring S is called a (generalized)Clifford semiring congruence if S/ρ is a (generalized)Clifford semiring. Here we characterize the (generalized)Clifford congruences on a semiring whose additive reduct is a regular semigroup. Also we give an explicit description for the least (generalized)Clifford congruence on such semirings.
Źródło:: Discussiones Mathematicae - General Algebra and Applications; 2014, 34, 2; 143-153
1509-9415
Pojawia się w:: Discussiones Mathematicae - General Algebra and Applications
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Cr, Cu, Ni, Pb i Zn w pyle drogowym na terenie Lublina
Cr, Cu, Ni, Pb and Zn in street dust in Lublin
Autorzy:: Kiebała, A.
Kozieł, M.
Zgłobicki, W.
Powiązania:: https://bibliotekanauki.pl/articles/297371.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: metale śladowe
pył drogowy
Lublin
trace metals
road dust
Opis:: Metale śladowe są stale emitowane do środowiska i stanowią duże zagrożenie dla zdrowia człowieka, zwłaszcza na obszarach miejskich. Mają zdolność do bioakumulacji, przez co ich zawartość w organizmach z czasem może być wyższa niż ta w środowisku. Zagrożeniem ze względu na obecność i zawartość Cr, Cu, Ni, Pb i Zn może być pył drogowy, który składa się z cząstek mineralnych i organicznych pochodzących z gleby, emitorów przemysłowych, pojazdów samochodowych oraz spalania paliw. Zawartość metali w pyle drogowym jest pewnym wskaźnikiem zanieczyszczenia atmosferycznego. Zanieczyszczenia zawarte w pyle drogowym mogą przedostawać się do gleb z terenów przyległych oraz stanowić zagrożenie dla środowiska w miejscach jego składowania. Celem pracy było określenie całkowitej zawartości Cr, Cu, Ni, Pb i Zn w pyle drogowym pobranym wzdłuż głównych tras komunikacyjnych w Lublinie (49 punktów). Punkty poboru próbek położone były w obrębie większych ulic miasta, które charakteryzują się różnym natężeniem ruchu samochodowego. Zawartość badanych metali określono na spektrometrze fluorescencji rentgenowskiej (ED XRF). Średnie stężenia analizowanych pierwiastków wynoszą: Cr: 53 mg·kg⁻¹, Cu: 65 mg·kg⁻¹, Ni: 27 mg·kg⁻¹, Pb: 23 mg·kg⁻¹, Zn: 202 mg·kg⁻¹. Wyniki wskazują na umiarkowane zanieczyszczenie pyłu drogowego badanymi metalami. Dla miedzi zawartość przekracza wartość tła maksymalnie 26 razy. Pozostałe zawartości przekraczają wielkości tła maksymalnie: Cr – 18 razy, Ni - 9 razy, Pb - 5 razy, Zn - 10 razy. Przestrzenne zróżnicowanie zawartości analizowanych metali w pyle drogowym na terenie Lublina nie wykazuje jednoznacznego związku z natężeniem ruchu drogowego.
Trace metals are emitted to environment and constitute significant treat for human health, especially in the urban areas. They are dangerous because they are able to bioaccumulate, and by this their concentration in organisms with time can be higher than that in environment. A threat of presence and content of Cr, Cu, Ni, Pb, Zn may constitutes a road dust, which is composed of mineral and organic particles, coming from soil, industrial emissions, road traffic and fuel burning. The content of metals in street dust constitute some kind of atmospheric pollution indicator. Also, road dust is collected from the roads and accumulated on stockyard areas and can constitute a danger for neighboring areas. The aim of this study was to determine the total content of Cr, Cu, Ni, Pb and Zn in road dust collected along the main streets and roads in Lublin (49 positions). The sample location points were located along the bigger roads of distinct traffic intensity. The content of elements were carried out on the energy dispersive X-ray fluorescence spectrometer. The average concentrations of measured metals are following: Cr: 53 mg·kg⁻¹, Cu: 65 mg·kg⁻¹, Ni: 27 mg·kg⁻¹, Pb: 23 mg·kg⁻¹ and Zn: 202 mg·kg⁻¹. The data point to moderate contamination of analyzed metals in road dust. For copper, the concentration exceeds the background values maximal 26 times. Remaining concentrations of metals exceed the background values maximal of: 18 - times for Cr, 10 - times for Ni, 5 - times for Pb and 9 - times for Zn. The preliminary analysis of areal diversity of analyzed element content in road dust in Lublin doesn`t show a clear regularity or a direct relationship with the strength of road traffic.
Źródło:: Inżynieria i Ochrona Środowiska; 2015, 18, 3; 299-310
1505-3695
2391-7253
Pojawia się w:: Inżynieria i Ochrona Środowiska
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Trace Element Distribution in the Snow Cover of Different Functional Zones in Berezniki-Solikamsk Industrial Hub, Russia
Autorzy:: Ushakova, Evgeniya
Menshikova, Elena
Karavaeva, Tatiana
Puzik, Alexey
Powiązania:: https://bibliotekanauki.pl/articles/2027898.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: trace element
snowmelt
contamination
source identification
ecological risk assessment
Opis:: The current study considered the distribution of trace elements in snow cover taking into account the functional zoning of the territory of Berezniki-Solikamsk industrial hub, Perm Region, Russia. The concentrations of 22 trace elements were determined in the dissolved phase of snowmelt using ICP-MS method. On the basis of on the background approach, it was found that Ni, Se, Cu, and Sn are actively accumulated in the snow cover. Snowmelt surface runoff during snow melting period significantly contributes to the total watershed discharge of rivers; therefore, the compliance with the Russian fishery quality standards was assessed. It was found that meltwater is the source of Cu, Mn, Se, Zn, V in surface waters. Significant concentrations of Pb, Cd, W, As, Se in snow are characteristic of conditionally background sites in comparison with average values of global concentrations of dissolved trace elements in river waters, and Se, W, Pb, Ni, As, Cd are characteristic of all functional zones. This study presented the possible sources of priority pollutants. The greatest technogenic impact was observed in the area of transport infrastructure development. Upon that, recreational and residential functional zones also experience significant anthropogenic impact. In order to create a comfortable and healthy urban environment it is necessary to implement the measures to restore these areas.
Źródło:: Journal of Ecological Engineering; 2021, 22, 10; 28-39
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Tytuł:: The Concentration of Trace Elements in Sewage Sludge From Wastewater Treatment Plant in Gniewino
Autorzy:: Milik, J.
Pasela, R.
Lachowicz, M.
Chalamoński, M.
Powiązania:: https://bibliotekanauki.pl/articles/124352.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: trace elements
heavy metals
sewage sludge
wastewater treatment plant
Opis:: The sewage sludge originating from wastewater treatment plants (WWTP) serving rural areas is suggested for agricultural or natural usage. However, sewage sludge is beforehand subjected to the several pre-treatments, which involve stabilization, hygienisation and pre-composting. These methods mainly decrease the amount of organic substances and the presence of microorganisms, but hardly affect the concentrations of heavy metals. The advantages of using sludges as fertilizer for improving and sustaining soil fertility and crop production are numerous. The addition of sewage sludge to soils could affect the potential availability of heavy metals. Trace elements are distributed in the soil in various forms: solid phases, free ions in soil solution, soluble organic-mineral complexes, or adsorbed on colloidal particles. The most undesirable heavy metals in sewage sludge that are toxic for the living organisms include: cadmium, chromium, nickel, lead and mercury. In the study, the concentrations of trace elements (Pb, Cd, Cr, Hg, Ni, Zn, Al, As, Se, B, Ba, Br, Ca, Cu, Fe, Mn, Na, Ga, Li, Mo, Sr, Mg, K, Ru, Tl, V, U) were tested in the sewage sludge obtained from a WWTP serving rural areas (PE< 9 000). In each case, the tested sewage sludge was meeting the criteria of stabilization and was used for agriculture and land reclamation purpose. All the samples were collected in 2016 and subjected to microwave mineralization in a closed system in aqua regia. The total amounts of macro and microelements were determined with a spectrophotometer Coupled Plasma emission ICP-OES. It was found that the total concentrations of trace metals in all of sewage sludges are the same as the Polish regulation limit of pollutants for sludge to be used in agriculture. European legislation is less restrictive and permits higher contents of heavy metals in sludge used for agriculture than Asia. The trace elements (cadmium: 1.16 mg·kg^-1/d.m. in thePolish sewage sludge, are much higher than those in the other countries. Copper and zinc were the most prevalent elements observed (111.28 mg·kg^-1/d.m. and 282.94 mg·kg^-1/d.m., respectively). The concentrations of copper in the Polish sewage sludge are much lower (49–130 mg·kg^-1/d.m.) than european sewage sludge (522–562 mg·kg^-1/d.m.). The two of the tested heavy metals (beryllium, bismuth) were under the detection limit, while gallium, molybdenum, thallium, vanadium and silver were detected in the concentrations lower than 0.005 mg·kg^-1/d.m. According to the obtained results, in all the tested samples, the total amount of trace elements, did not exceed the limit values in sewage sludge for their use in agriculture and land reclamation.
Źródło:: Journal of Ecological Engineering; 2017, 18, 5; 118-124
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Zależność pomiędzy zawartością pierwiastków szkodliwych w litotypach węgla i ich popiołach (pokład 405, GZW)
Relationship between the content of hazardous trace elements in coal lithotypes and their ashes (405 coal seam, u.s.c.b.)
Autorzy:: Kokowska-Pawłowska, M.
Powiązania:: https://bibliotekanauki.pl/articles/215799.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Tematy:: pierwiastki szkodliwe
pierwiastki śladowe
litotyp
popiół
pokład 405
współczynnik wzbogacenia
hazardous trace elements
trace elements
lithotype
ashe
405 coal seam
enrichment coefficient
Opis:: Zbadano zróżnicowanie zawartości wybranych pierwiastków szkodliwych (Ba, Cd, Co, Cr, Cu, Ni, Pb, Zn, Mn, Be, Li, V, As, Ga) w próbkach litotypów i ich popiołach pochodzących z pokładu 405 (warstwy załęskie). Wykazano znaczną zmienność zawartości pierwiastków w badanych próbkach, zależną od rodzaju litotypu, a przede wszystkim od zawartości popiołu. We wszystkich litotypach najwyższe zawartości wykazały pierwiastki Ba i Mn. Pozostałe oznaczone pierwiastki ze względu na średni udział w litotypach można uszeregować w następującejkolejności: Zn < Pb < V < Cu < Ni < Cr < Ga < Co < Be < Li < As < Cd. Podobną tendencję udziału pierwiastków obserwowano w popiołach litotypów. Wyliczono współczynnik wzbogacenia (W) w popiołach litotypów, jako stosunek zawartości pierwiastka w popiele do zawartości w litotypie. Założono, że wartości współczynnika W są tym wyższe im wyższa jest zawartość pierwiastka związana z substancją organiczną węgla. Na zawartość pierwiastków śladowych w litotypach duży wpływ ma ich powinowactwo geochemiczne do substancji organicznej bądź mineralnej węgla, które określono na podstawie wielkości współczynnika wzbogacenia popiołów litotypów w te pierwiastki. Najwyższymi wartościami tych współczynników (od 5 do 7) charakteryzują się pierwiastki, takie jak Cr, Be, Cd i Cu, natomiast pozostałe pierwiastki wykazują niższe wartości (od ok. 2 do ok. 3). Najniższe wartości współczynnika wzbogacenia najczęściej obserwowano w przypadku: Co, Li i Mn. Na podstawie wyliczonych wartości współczynników wzbogacenia w popiele stwierdzono, że pierwiastki, takie jak Ba, Mn, Li, As, Co, Ga, Ni, Pb i Zn charakteryzowały się dużym powinowactwem do substancji mineralnej (niski współczynnik wzbogacenia w popiele). Maksymalna ich koncentracja przypadała na litotypy silnie mineralizowane – węgiel matowy bądź półbłyszczący. Natomiast nieliczne pierwiastki, jak: Cr, Be, Cd i Cu wykazały duże powinowactwo do substancji organicznej węgla (wysoki współczynnik wzbogacenia w popiele) i tendencję do maksymalnej koncentracji w litotypie błyszczącym. Na podstawie wykazanych istotnych korelacji pierwiastków śladowych w litotypach z zawartością popiołu można uznać, że pierwiastki te są głównie obecne w substancji mineralnej węgla.
This study analyzed the variability in the content of selected hazardous trace elements (Ba, Cd, Co, Cr, Cu, Ni, Pb, Zn, Mn, Be, Li, V, As, Ga) from the 405 (Załęże beds) coal seams’ coal lithotypes and their ashes. The significant variability in the content of the trace elements from the examined samples depends partly on the type of lithotype, and mainly on the ash content. Within all distinguished lithotypes, the highest concentrations were of the elements Ba and Mn. Other evaluated elements could be categorized by average content in the lithotypes in following order: Zn < Pb < V < Cu < Ni < Cr < Ga < Co < Be < Li < As < Cd. A similar trend in elemental content has been observed in the ashes from the lithotypes. The enrichment coefficient (W) values have been calculated for the ashes of the lithotypes as a ratio of an element’s content in the ash to its content in the lithotype. The assumption was that coefficient W values increase with increasing content of an element related to the organic matter of the coal. The highest values of these coefficients (from 5 to 7) were shown by Cr, Be, Cd, and Cu. The other elements exhibited lower values (from about 2 to about 3), and the lowest values of the enrichment coefficient were most frequently observed in the case of Co, Li, and Mn. On the basis of the calculated enrichment coefficient values in the ashes, it has been found that elements such as Ba, Mn, Li, As, Co, Ga, Ni, Pb, and Zn demonstrated high correlation with to the mineral substance (low enrichment coefficient in the ash). Their maximum concentrations decreased for the strongly mineralised lithotypes – dull coal or semi-vitreous coal. However, a small number of elements such as Cr, Be, Cd, and Cu demonstrated high correlation with the organic matter of coal (high enrichment coefficient in the ash) and tended to be most heavily concentrated in vitreous lithotype. The trace elements’ content in the lithotypes is connected with their affinity toward organic matter or mineral matter. This was determined based on the value of the coefficient of enrichment in the ashes of these elements. On the basis of the volume of the coefficient of correlation, a significant correlation was established between trace elements in lithotypes and content of ash and mineral matter in coal.
Źródło:: Gospodarka Surowcami Mineralnymi; 2014, 30, 2; 51-66
0860-0953
Pojawia się w:: Gospodarka Surowcami Mineralnymi
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Geochemistry of trace elements in spring waters of the Lourdes area (France)
Autorzy:: Dobrzyński, D.
Rossi, D.
Powiązania:: https://bibliotekanauki.pl/articles/191889.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: groundwater geochemistry
trace elements
spring water
Lourdes springs
France
Opis:: Geochemical studies on the waters of four springs, including the Massabielle (MS) Spring, were carried out at Lourdes (France) following a long, rainless and warm period, with the aim of at least documenting the groundwater chemistry that was affected by the current meteoric input. The existence of anecdotal reports about anomalously elevated concentrations of trace constituents in the water of the MS Spring in the absence of any detailed studies inspired these first geochemical investigations of trace elements in the spring waters at Lourdes. The main common features of waters from the four springs studied in Lourdes are low total dissolved solids (255–318 mg/L), a slightly alkaline pH (7.50–7.68), oxidizing conditions (E_H = 458–472 mV), similar temperatures (11.3–13.1 °C), and their Ca-HCO₃ hydrochemical type, all of which are typical characteristics for an active zone within a hydrogeological system that is developed in carbonate-dominated bedrock. The spring waters, which represent an active turnover zone in the hydrogeological system, are only in partial chemical equilibrium with the minerals of the aquifer rocks. The enrichment of the MS Spring water with numerous elements (Li, Na, Cs, Ba, S, F, Br, REE, B, Sb and Bi), when compared with other springs studied and with the bedrock geochemistry, probably is caused by contributions from fluids (originating from the Pyrenees basement and/or from Triassic saliferous deposits) in the formation of the hydrogeochemical content of the zone under investigation. The germanium concentration in all of the waters studied was significantly lower than the concentrations typically found in fresh groundwater in the active zone; accordingly, the hypothesis concerning an anomalously high concentration of this element in the MS Spring water was invalidated. The preliminary geochemical research presented is part of an interdisciplinary geochemical-biological-tensiometric study of the spring waters at Lourdes.
Źródło:: Annales Societatis Geologorum Poloniae; 2017, 87, 2; 199-212
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Disappeared almost without a trace : Taphonomic pathways and the recognition of hidden bioturbation events in Eocene storm deposits (Paují Formation, Lake Maracaibo, Venezuela)
Autorzy:: Buatois, L. A.
Delgado, M.
Mángano, M. G.
Powiązania:: https://bibliotekanauki.pl/articles/191974.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: trace fossils
ichnofabric
taphonomic pathways
tempestites
shallow marine
Eocene
Opis:: Shallow-marine deposits, included in the “Basal Sands” of the Eocene Paují Formation of the Maracaibo Basin in western Venezuela, record deposition in fore shore to lower off shore settings. These deposits are stacked in coarsening-upward parasequences that reflect variable intensities and frequencies of storms. Of particular interest are sharp-based, amalgamated, hummocky cross-stratified and rippled, very fine-grained sandstone beds, observed in the core MOT-X from the Motatán Field. These beds record storm deposition, under purely oscillatory to combined flows in an offshore-transition setting. The amalgamated nature of the sand stone interval indicates repeated erosion, due to multiple storm events. The ichnofabrics in these tempestites result from a distinctive taphonomic pathway, reflecting the interplay between bioturbation events and storm erosion and deposition. The storm-related trace-fossil suite is represented by Diplocraterion parallelum and local occurrences of Palaeophycus tubularis, Bergaueria isp. and Thalassinoides isp., which is consistent with the relatively high energy of formation of these deposits. Fair-weather deposits are absent from the sand stone interval. However, high densities of Chondrites isp. are present in the infills of Diplocraterion parallelum and, more rarely, Thalassinoides isp. providing the sole evidence of the establishment of a resident fauna during inter-storm intervals. Deposits containing the fair-weather suites were erosionally removed during the subsequent storm. The deep-tier emplacement of Chondrites and the ability of its producer to rework other biogenic structures favour preservation, allowing recognition of a “hidden” bioturbation event that otherwise might have remained undetected.
Źródło:: Annales Societatis Geologorum Poloniae; 2015, 85, 3; 473-479
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Photochemical investigation of elements in Oryza sativa
Autorzy:: McKenzie, Feanna
Verma, Vishwa N.
Powiązania:: https://bibliotekanauki.pl/articles/1192076.pdf
Data publikacji:: 2016
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Oryza Sativa
Rice Grains
Human Consumption
Trace Elements
AAS
Opis:: Short white rice grains produced locally from Mahaica, Guyana were collected from the rice farm and analyzed for ten trace elements by flame atomic absorption spectrometer. The concentrations of the trace elements investigated are as follows: - Ca (76.81), Mg (54.30), Fe (28.2), Cu (4.90), Zn (71.16) and Mn (14.33) mg/Kg. There had been controversial reports about the toxic elements normally present in the rice produced in different areas and conditions. The other four toxic elements As, Co, Pb and Al were also analyzed but not detected. With reference to the literature on the maximum daily intakes for human consumption, the concentration levels were all below the literature except for zinc and manganese
Źródło:: World Scientific News; 2016, 37; 50-60
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Trace fossils from the Upper Cretaceous Capacete Formation, Sanfranciscana Basin, Central Brazil
Autorzy:: Sedorko, Daniel
Alessandretti, Luciano
Warren, Lucas Veríssimo
Verde, Mariano
Rangel, Caio César
Ramos, Kimberly Silva
Netto, Renata Guimarães
Powiązania:: https://bibliotekanauki.pl/articles/1836263.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: meandering fluvial system
insects
continental trace fossils
Scoyenia ichnofacies
Opis:: The Upper Cretaceous Capacete Formation, from the intracratonic Sanfranciscana Basin, central Brazil, consists of epiclastic sediments with a significant aeolian contribution. This unit has been traditionally interpreted as deposited by alluvial fans distally grading to braided rivers in an arid- to semiarid climate within the central part of southwestern Gondwana. Locally, some expositions with wide lateral extension show architectural elements indicative of deposition in meandering rivers, such as floodplain fines (FF) interbedded with crevasse splay (CR), lateral-accretion macroforms (LA), and channels (CH). Bioturbation within the meandering fluvial deposits is commonly associated with the floodplain element, mainly occurring in fine-grained sandstone and mudstone. The lateral-accretion elements and channel deposits are barren of trace fossils. Sandstone with climbing ripples (Sr) from the element CR show low bioturbation of meniscate trace fossils assigned to Taenidium, Beaconites, and Scoyenia ichnogenera. Simple vertical and horizontal burrows identified as Skolithos and Palaeophycus occur associated with Taenidium and Camborygma in sandstone facies (Sr, St and Sh), as well as rhizoliths, representing the Scoyenia ichnofacies. The predominance of trace fossils related to the FF and CR architectural elements attests to the colonization mostly by insects in episodic and vegetated flood plains of the meandering river system from the Capacete Formation. Thus, despite the primarily arid to semiarid conditions interpreted for the inner parts of the newly formed South American continent during the Upper Cretaceous, our new data support deposition under humid conditions in some intervals of the Capacete Formation from the Sanfranciscana Basin.
Źródło:: Annales Societatis Geologorum Poloniae; 2020, 90, 3; 247-260
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Trace fossils from the Mississippian of the Piaskowa Góra section (the Intra-Sudetic Basin, SW Poland)
Autorzy:: Muszer, Jolanta
Powiązania:: https://bibliotekanauki.pl/articles/1836353.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: Trace fossils
Szczawno Formation
Intra-Sudetic Basin
lower Serpukhovian
Opis:: Eight ichnotaxa and enigmatic tubular forms were discovered and described for the first time from clastic deposits (the Culm facies) of the uppermost part of the Szczawno Formation (upper Mississippian) from in the Piaskowa Góra section in the northern part of the Intra-Sudetic Basin near Wałbrzych. The trace fossils are represented mostly by pascichnia and less numerous domichnia, fodinichnia and repichnia. Psammichnites plummeri and numerous Phycosiphon isp. are the most common ichnotaxa. They are accompanied by Archaeonassa fossulata, Beaconites cf. capronus, Curvolithus multiplex, Dictyodora liebeana, Palaeophycus isp., and Planolites isp. D. liebeana is described for the first time from the lower Serpukhovian. Most components of the ichnoassem-blage are typical of the Cruziana ichnofacies, but the co-occurrence of Dictyodora and Phycosiphon could indicate a transition to deeper environmental settings (the Zoophycos ichnofacies). The lithological features as well as the accompanying trace fossils, wrinkle structures and floral remains of Archaeocalamites indicate rapid sedimentation, alternating with more tranquil periods of sedimentation, in an intermediate environment between the lower offshore (the distal Cruziana ichnofacies) and the fan-delta slope (below the wave base, the Zoophycos ichnofacies). The studied trace fossils and palynological data indicate that marine conditions in the Wałbrzych area in the Mississippian prevailed locally until the early Sepukhovian.
Źródło:: Annales Societatis Geologorum Poloniae; 2020, 90, 2; 195-213
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 84.

Tytuł:: Pierwiastki śladowe w osadach rzeki Brdy w Bydgoszczy
Trace elements in sediments of the Brda river in Bydgoszcz
Autorzy:: Bojakowska, I.
Wołkowicz, S.
Dobek, P.
Powiązania:: https://bibliotekanauki.pl/articles/2062742.pdf
Data publikacji:: 2012
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: pierwiastki śladowe
zanieczyszczenie
Brda
trace elements
pollution
Brda River
Opis:: Na terenie Bydgoszczy z rzeki Brdy pobrano próbki osadów z 22 stożków nasypowych, powstałych przy wylotach kanałów ściekowych, którymi odprowadzano ścieki do rzeki. Z każdego stożka pobrano jedną uśrednioną próbkę, którą uzyskano przez połączenie od 4 do 9 pełnej miąższości rdzeni pobranych w różnych miejscach stożka. W próbkach oznaczono zawartość As, Ba, Cr, Pb, Co, Cu, Ni, Sn i Zn metodą ICP-OES oraz Hg metodą AAS z zatężaniem na amalgamatorze. Maksymalne zawartości pierwiastków wynosiły: Ba – 233 mg/kg, Cd – 6,9 mg/kg, Cr – 255 mg/kg, Cu – 231 mg/kg, Hg – 2,72 mg/kg, Ni – 36 mg/kg, Pb – 301 mg/kg, Sn – 19 mg/kg i Zn – 507 mg/kg. Przekroczenie dopuszczalnych zawartości Hg, Pb, Cr, Cu według Rozporządzenia MŚ o osadach bagrowniczych (Rozporządzenie, 2002a) stwierdzono w 11 stożkach nasypowych. Oszacowano, że w stożkach nasypowych utworzonych przy wylotach kanałów ściekowych nagromadziło się około 8,6 tys. m3 osadów dennych, z których około 4,5 tys. m3 stanowiły osady niezanieczyszczone, które mogły być relokowane w obrębie akwenu wodnego, a około 4,1 tys. m3 stanowiły osady zanieczyszczone.
In the city of Bydgoszcz, sediment samples were taken from 22 embankment cones in the Brda River, formed near the outlets of sewers through which waste water was discharged into the river. One averaged sample, which was obtained by combining 4 to 9 full-thickness cores taken at different locations of the cone, was collected from each cone. The samples were analysed for As, Ba, Cr, Pb, Co, Cu, Ni, Sn and Zn contents by the ICP-OES method, and for Hg content using the AAS method with pre-concentration on a gold amalgamate trap. The maximum levels of individual elements were as follows: Hg – 2.72 mg/kg, Cd – 6.9 mg/kg Cr – 255 mg/kg, Sn – 19 mg/kg, Zn – 592 mg/kg, Cu – 231 mg/kg, Ni – 74 mg/kg, Pb – 301 mg/kg, and Ba – 233 mg/kg. The concentrations exceeding permissible limits of Hg, Pb, Cr, Cu, according to the Decree of the Minister of the Environment (Rozporządzenie, 2002) for dragged sediments, were found in 11 embankment cones. It was estimated that the embankment cones set up at the mouths of the sewers have accumulated about 8.6 thousand m3 of sediments, of which about 4.5 thousand m3 of sediments were uncontaminated and could be relocated within the body of water, and about 4.1 thousand m3 of sediments were contaminated.
Źródło:: Biuletyn Państwowego Instytutu Geologicznego; 2012, 450; 27--33
0867-6143
Pojawia się w:: Biuletyn Państwowego Instytutu Geologicznego
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 85.

Tytuł:: A distinctive crouching theropod trace from the Lower Jurassic of Poland
Autorzy:: Gierliński, G. D.
Lockley, M. G.
Niedźwiedzki, G.
Powiązania:: https://bibliotekanauki.pl/articles/2059247.pdf
Data publikacji:: 2009
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: Polska
Holy Cross Mountains
Lower Jurassic
dinosaur crouching trace
Opis:: A well-preserved, essentially complete and distinctive trace fossil of a crouching, medium-sized theropod dinosaur is reported from the northern slope of the Holy Cross Mountains, Poland. Crouching theropod traces are rare, and currently known from only six specimens from the Jurassic of North America and Asia. Thus, this new specimen adds a seventh specimen to the dinosaur track record. The specimen was found in the Early Jurassic (Late Pliensbachian) sandstones mined in the Szydłówek quarry, in the vicinity of Szydłowiec.
Źródło:: Geological Quarterly; 2009, 53, 4; 471-476
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 86.

Tytuł:: Effect of Solution Treatment on Age-Hardening Behavior of Al-12Si-1Mg-1Cu Piston Alloy with Trace-Zr Addition
Autorzy:: Kaiser, M. S.
Powiązania:: https://bibliotekanauki.pl/articles/106951.pdf
Data publikacji:: 2018
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: Al-Si alloys
trace addition
solutionizing
age hardening, resistivity
Opis:: The influence of a solution treatment with a trace zirconium addition on the precipitation behavior of a cast Al-12%Si-1%Mg1%Cu piston alloy has been reported. The alloys were prepared by controlled melting and casting. The cast alloys were given an age-hardening treatment having a sequence of homogenization, T6 solutionizing, quenching, and aging. Both the cast and solutionized samples were naturally aged for 58 days, isochronally aged for 60 minutes at different temperatures (up to 350°C), and isothermally aged at various temperatures (up to 225°C) for different periods of time (ranging from 15 to 360 minutes). The hardness values of the differently processed alloys were measured to understand the aging behavior of the alloys. Electrical resistivity changes with aging time and temperature were measured to understand the precipitation behavior of the alloys. It is observed that significant hardening takes place in the aged alloys due to the formation of GP zones as well as the formation of metastable phases. The solutionizing treatment improves the hardness because some alloying elements are re-dissolved during solution treatment to produce a solute-rich solid solution. The trace-added Zr hinders the softening due to the precipitation of Al3Zr, which is very stable against coarsening and the re-dissolution of precipitates. Electrical resistivity decreases due to stress relieving, the dissolution of the metastable phase, and precipitation coarsening. The resistivity of the solutionized alloys decreases more due to the higher concentration of elements in the solid solution. A microstructural study of the alloys reveals that the solution treatment improves the distribution of the silicon grains. It is also observed that the alloys attained an almost fully re-crystallized state after aging at 350°C for 90 minutes.
Źródło:: Journal of Casting & Materials Engineering; 2018, 2, 2; 30-37
2543-9901
Pojawia się w:: Journal of Casting & Materials Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 87.

Tytuł:: The impact of a bottom sediment on the reaction and the content of exchangeable aluminium in a soil
Autorzy:: Kazberuk, Witold
Rutkowska, Beata
Powiązania:: https://bibliotekanauki.pl/articles/2148680.pdf
Data publikacji:: 2019-03-30
Wydawca:: Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
Tematy:: bottom sediment
exchangeable aluminium
pH
macronutrients
trace elements
oat
Opis:: The aim of the study was to determine the effect of bottom sediment on the pH and content of available forms of P, K, Mg and aluminium exchangeable in the soil and on the yield of oats.The research was carried out in the Podlasie voivodship on very light soil. The material for the tests were samples of bottom sediment. In the experiment a bottom sediment from the breeding pond and soil was used. In the sediment bottom sediment sam-ple, the following parameters were determined: pH, heavy metal content (lead, cadmium, zinc, copper), as well as the content of aluminum, phosphorus, potassium and magnesium. The reaction of the bottom sediment was also determined. In soil samples, the content of exchangeable aluminium, available forms of phospho-rus, potassium, magnesium was determined and the soil reaction was determined. The obtained results confirmed the influence of bottom sedi-ment on reducing the content of exchangeable aluminium in the soil. The analyzes show that the soil after application of bottom sediment contained significantly less exchangeable aluminium. The sludge also influenced the increase of soil pH and the incre-ase of magnesium content in the soil. There was no influence of the use of bottom sediment on the content of available phospho-rus and potassium in the soil and on oat yield.
Źródło:: Polish Journal of Agronomy; 2019, 36; 8-16
2081-2787
Pojawia się w:: Polish Journal of Agronomy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 88.

Tytuł:: Early Jurassic dinosaur-dominated track assemblages, floristic and environmental changes in the Holy Cross Mountains region, Poland
Autorzy:: Pacyna, Grzegorz
Ziaja, Jadwiga
Barbacka, Maria
Pieńkowski, Paweł
Jarzynka, Agata
Niedźwiecki, Grzegorz
Powiązania:: https://bibliotekanauki.pl/articles/2201217.pdf
Data publikacji:: 2022
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: Mesozoic
ecosystems
tetrapod tracks
plant macrofossils
palynomorphs
trace fossils
Opis:: The Early Jurassic succession of the Holy Cross Mountains region in Poland offers a rare opportunity to study ecosystem complexity during the evolution and diversification of early dinosaurs, especially herbivorous ones. The section consists of continental and coastal deposits containing fossil assemblages spanning nearly 25 My of changes in terrestrial plants and some groups of invertebrates and tetrapods. Based on macrofossils and pollen and spores, the broader characteristics of the flora in this succession are presented. The floral assemblages show typical Early Jurassic characteristics and contain lycopsids, sphenopsids, ferns, cycadaleans, bennettitaleans, gnetaleans and ginkgoaleans, as well as conifers, and are similar to other Hettangian–Toarcian floral successions in Europe, showing the presence of a vast coniferous forest dominated by Hirmeriella in the early Hettangian, replaced by ginkgophyte-dominated floras in younger stages and araucarian conifer-dominated forests in the late Pliensbachian. Dinosaurs are documented mainly from their trace fossils (tracks and coprolites). Six distinct track assemblages (stratigraphically separated ichnoassemblages) of different ages can be identified. Current evidence indicates that while Anomoepus tracks are abundant throughout the long Hettangian–late Pliensbachian interval, medium-sized to large ornithischian tracks do not occur below the lower–middle Hettangian transition zone, associated with the first major marine transgression in the region. Hettangian strata with different theropod tracks (Grallator, Anchisauripus, Eubrontes, Kayentapus, cf. Megalosauripus), small Anomoepus tracks, numerous medium-sized Anomoepus-like tracks, Moyenisauropus tracks, tetradactyl tracks of sauropodomorphs (cf. Pseudotetrasauropus) and oval-shaped tracks of sauropods (Parabrontopodus) significantly contrast with the higher part of the Lower Jurassic succession (upper Pliensbachian Drzewica Formation and middle–upper Toarcian Borucice Formation) containing new types of medium-sized to large theropod tracks (Therangospodus), small and medium-sized bird-like tridactyl tracks (cf. Trisauropodiscus, cf. Anomoepus), exceptionally large, oval-shaped sauropod tracks (Sauropoda indet.), and new types of medium-sized and large ornithischian tracks (cf. Deltapodus, cf. Anomoepus). This points to a noticeable difference between the Hettangian and late Pliensbachian–Toarcian dinosaur ichnofaunas and may facilitate the study of regional and global changes and correlations. Both the palaeofloras and dinosaur trace fossils document ecosystem diversity and ecosystem changes, presented here in review form. The nature of these changes requires more detailed study, but preliminary results suggest the occurrence of rather complex and pronounced transformations in the dinosaur communities of the Holy Cross Mountains region. Based on our observations, the most significant event in Early Jurassic ecosystems took place within the Hettangian (change in floristic composition, the emergence of new groups of dinosaurs), but we also found what we believe to be a record of a major faunal turnover across the late Pliensbachian–middle–late Toarcian interval.
Źródło:: Geological Quarterly; 2022, 66, 3; art. no. 29
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 89.

Tytuł:: Simple, responsive and cost effective simultaneous quantification of Ga(III) and In(III) in environmental water samples
Autorzy:: Grabarczyk, M.
Adamczyk, M.
Powiązania:: https://bibliotekanauki.pl/articles/2082480.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: gallium(III)
indium(III)
trace analysis
environmental
water samples
Opis:: The simultaneous determination of Ga(III) and In(III) in environmental water samples was described. The procedure was based on adsorptive stripping voltammetry using an in situ plated bismuth film electrode as a working electrode. In order to obtain low detection limits and satisfactory separations of gallium and indium peaks on the voltammogram, cupferron was used as a complexing agent. The optimum composition of the supporting electrolyte was found to be: 0.1 mol l-1 acetate buffer (pH=5.0), 2 × 10-4 mol l-1 cupferron, 2 × 10-4 mol l-1 Bi(III), optimal voltammetric parameters were found to be: accumulation potential -0.9 V, accumulation time 60 s. The linear range of Ga(III) as well as In(III) was observed over a concentration range from 2.5 × 10-8 mol l-1 to 1.5 × 10-6 mol l-1. The method was satisfactorily applied to the simultaneous quantification of gallium and indium in environmental water samples. This facilitated a promising application of the recommended procedure for monitoring the environment, which is necessary to evaluate the soil-plant system.
Źródło:: International Agrophysics; 2019, 33, 2; 161-166
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 90.

Tytuł:: Określenie prędkości poruszania się szkodników z wykorzystaniem komputerowej analizy obrazu
Describing the velocity of the moving vermin with the using computer analysis of the image
Autorzy:: Rut, J.
Szwedziak, K.
Tukiendorf, M.
Powiązania:: https://bibliotekanauki.pl/articles/288996.pdf
Data publikacji:: 2007
Wydawca:: Polskie Towarzystwo Inżynierii Rolniczej
Tematy:: komputerowa analiza obrazu
aplikacja komputerowa Trace
obiekt ruchomy
trajektoria ruchu
prędkość ruchu
computer image analysis
computer Trace application
movable object
trajectory
move
speed
Opis:: W artykule przedstawiono zastosowanie komputerowej analizy obrazu i aplikacji komputerowej Trace do śledzenia ruchomych obiektów. Ruchome obiekty spotykane w rolnictwie np.: szkodniki, poruszają się w określony sposób, a aplikacja Trace pozwala na ciągłe śledzenie tych obiektów i określenie sposobu poruszania się oraz określenie prędkości, a tym samym określenie uszkodzeń biomasy roślin uprawnych w czasie.
In the article applying computer analysis of the image and the computer Trace application was described for stalking movable objects. Movable objects met in the farming e.g.: vermin, they are moving in the defined way and the Trace application permits the speed continuous stalking these objects and defining the deportment and determining, hence defining damage to the biomass of crop plants in the time.
Źródło:: Inżynieria Rolnicza; 2007, R. 11, nr 2 (90), 2 (90); 265-269
1429-7264
Pojawia się w:: Inżynieria Rolnicza
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 91.

Tytuł:: Pioneer colonization, evidenced by Rhizocorallium in the Middle Triassic of Poland
Autorzy:: Stachacz, Michał
Powiązania:: https://bibliotekanauki.pl/articles/27311290.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Geologiczne
Tematy:: trace fossils
bioturbation
Muschelkalk
Ichnotaxonomy
palaeoecology
post-extinction biota recovery
Opis:: A large collection of the trace fossil Rhizocorallium from the Middle Triassic of the Polish part of the Germanic Basin (Peri-Tethys) is analysed and their ichnotaxonomical classification presented. Special attention is given to the deep form of Rhizocorallium with a vertical retrusive spreite, filled with faecal pellets, with detailed documentation of this structure, based on isolated specimens and serial sections. This analysis also reveals ∩-shaped and deep, protrusive structures. A former interpretation of Rhizocorallium as a rapidly formed fugichnion is not followed here; instead, an interpretation of the trace fossil as a complex fodinichnion is proposed. Scavengers and their relation to crinoid meadows, as well as predators, are indicated as potential tracemakers of some Rhizocorallium. Although Rhizocorallium is common throughout the Middle Triassic, unusual forms and the domination of substrates by Rhizocorallium in general mostly occur in the transgressive system of the lowermost Muschelkalk, and in regressive, marginal facies of the lower Keuper. Such a distribution of unusual forms of Rhizocorallium is interpreted as representing opportunistic, pioneer burrow assemblages that developed during the long-term benthic recovery after the P-T crisis, or in unfavourable conditions generally. Moreover, dynamic conditions with mixed clastic-carbonate sedimentation and rapidly varying salinity promoted smooth transitions from Rhizocorallium to Diplocraterion. Similar successions of dominant trace-fossil assemblages, of comparable sizes, occur in many sections around the world and demonstrate the record of slow recovery that continued through the Middle Triassic. The illustrated record of evolution of the Middle Triassic Rhizocorallium assemblages in Poland documents the last two stages of benthos recovery after the P-T boundary. A similar situation is observed around the world and, in many cases, great abundance of Rhizocorallium seems to be an indication of pioneer burrowing in dynamic, unfavourable environments.
Źródło:: Annales Societatis Geologorum Poloniae; 2023, 93, 4; 363--379
0208-9068
Pojawia się w:: Annales Societatis Geologorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 92.

Tytuł:: Zróżnicowanie zawartości pierwiastków śladowych w osadach torfowisk Otalżyno, Huczwa i Stoczek
Variability of trace element concentrations in the deposits of the Otalżyno, Huczwa and Stoczek peat bogs
Autorzy:: Bojakowska, I.
Tołkanowicz, E.
Powiązania:: https://bibliotekanauki.pl/articles/2061896.pdf
Data publikacji:: 2015
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: torf
pierwiastki śladowe
Otalżyno
Huczawa
Stoczek
peat
trace elements
Huczwa
Opis:: Badaniom poddano torfy z trzech torfowisk (torfowiska wysokiego Otalżyno oraz torfowisk niskich Huczwa i Stoczek). W próbkach torfu, po ich pełnym kwasowym roztworzeniu, określono zawartość pierwiastków śladowych (Li, Be, As, Se, Rb, Ag, Sb, Cs, Tl, Th, U, Ba, Cd, Co, Cr, Cu, Hg, Mo, Ni, Pb, Sn, Sr, Ti, V i Zn) i głównych (Al, S, Ca, Fe, K, Mg, Mn, Na, P i TOC). Najniższą zawartością pierwiastków śladowych odznaczały się torfy z torfowiska Otalżyno, a najwyższą – torfy z torfowiska Stoczek. Zróżnicowanie stężenia pierwiastków jest ściśle związane ze składem chemicznym skał występujących na terenach przyległych. Zawartość pierwiastków śladowych wykazuje wysoką korelację z zawartością Al, Fe i S, niższą z P, jeszcze niższą z Ca, a najniższą z TOC.
Studies of peat from three peat bogs (Otalżyno bog, Huczwa and Stoczek fens) were conducted. In peat samples, after the total acid digestion, the content of trace (Li, Be, As, Se, Rb, Ag, Sb, Cs, Tl, Th, U, Ba, Cd, Co, Cr, Cu, Hg, Mo, Ni, Pb, Sn, Sr, Ti, V and Zn) and major (Al, S, Ca, Fe, K, Mg, Mn, Na, P and TOC) elements were determined. The lowest contents of trace elements were found in the raised peat bog Otalżyno. The peat from the Stoczek fen shows the highest contents of trace elements. Differences in the content of elements in the peat are strictly dependent on the chemistry of the rocks occurring in the area surrounding the bog. Trace elements display a significant correlation with the content of Al, Fe and S, a weaker correlation with P, even slightly weaker with Ca, and the weakest with TOC.
Źródło:: Biuletyn Państwowego Instytutu Geologicznego; 2015, 464; 5-16
0867-6143
Pojawia się w:: Biuletyn Państwowego Instytutu Geologicznego
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 93.

Tytuł:: Determination of magnesium, manganese, copper and zinc in infusions of inflorescences and leaves of Solidago canadensis
Autorzy:: Krolak, E.
Bielecka, A.
Strzalek, M.
Powiązania:: https://bibliotekanauki.pl/articles/1192507.pdf
Data publikacji:: 2020
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: Canada goldenrod
water extracts
magnesium
trace metals
recommended daily
allowances
Opis:: The Solidago canadensis (Canada goldenrod) species is an invasive plant in Europe and Asia. It grows mainly in anthropogenic environments, including those with a high content of heavy metals in soil. Goldenrod is also a honey plant, and its inflorescences and leaves are used in herbal medicine. The aim of the study was to determine the content of metals: Mg, Mn, Cu and Zn, in inflorescences and leaves of S. canadensis and in water extracts prepared from them. Material for the research was obtained in Poland. The content of the metals was determined by atomic absorption spectrometry. It was found that leaves of S. canadensis contained more Mg and Zn, but less Cu compared with inflorescences. The content of the metals in water extracts was proportional to their content in the raw material, except the content of Mn in leaves. Among the metals studied, the highest extraction of Cu and Mg was noted in infusions of leaves and inflorescences, while Zn achieved the highest extraction in infusions of inflorescences. Mn was extracted to the least extent both in leaves and inflorescence infusions. Infusions of goldenrod leaves provided similar amounts of Mg, Cu and Zn as tea infusions. Infusions of inflorescences provided more Cu and Zn than infusions of chamomile flowers. Considering the use of S. canadensis in phytotherapy, water extracts from goldenrod leaves and inflorescences had a negligible share of the analysed metals (on average about 1% or less) in the recommended daily allowances (RDAs).
Źródło:: Journal of Elementology; 2020, 25, 4; 1489-1498
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 94.

Tytuł:: Depositional environments of the Carboniferous-Permian Taiyuan Formation (southern North China Block) as deduced from trace elements and from carbon and oxygen isotopes
Autorzy:: Lv, Dawei
Hu, Guangqing
Van Loon, Antonius Johannes
Wu, Dun
Powiązania:: https://bibliotekanauki.pl/articles/2058855.pdf
Data publikacji:: 2021
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: Taiyuan Formation
North China Block
palaeoenvironmental reconstruction
trace–element analysis
Opis:: Limestone layers are extensively developed in the continental/ocean transitional Taiyuan Formation. This formation accumulated on the southern North China Block. The precise environmental conditions of the Taiyuan Formation are still controversial. More information about these topics is presented here on the basis of the analysis of trace elements (Mo, V, Cd, Cr, U, Th), which can be used to determine characteristics of the depositional environment, and of carbon and oxygen isotopes (δ13C and δ18O) in limestone samples from the Huainan Coal Basin. Samples were taken for the purpose from cores of all 13 limestone levels, obtained from a coal-exploration borehole (code P2) in the Huainan Coal Basin. It was found that the δ18O values show a decreasing trend, suggesting a gradual rise of the sea level in a warm climate. Three negative shifts of δ13C appear in a lower, a middle and an upper limestone layer, accompanied by relative enrichment of the redox-sensitive elements (Cd, Cr, Mo and V). These three layers are thus deduced to have been deposited in a warm climate with a high sea level and with more terrigenous input than during deposition of the other limestone layers. The redox elements and elemental ratios (V/Cr, Th/U) in the limestones suggest deposition in an oxygen-rich sea with high salinity.
Źródło:: Geological Quarterly; 2021, 65, 1; 1
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 95.

Tytuł:: Trace element geochemistry of the Early to Late Cretaceous deposits of the Grajcarek thrust-sheets - a palaeoenvironmental approach (Małe Pieniny Mts., Pieniny Klippen Belt, Poland)
Autorzy:: Wójcik-Tabol, P.
Oszczypko, N.
Powiązania:: https://bibliotekanauki.pl/articles/2058965.pdf
Data publikacji:: 2012
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: Western Carpathians
Grajcarek thrust-sheets
black flysch
trace elements geochemistry
Opis:: The chemical composition of the Cretaceous deposits of the Grajcarek thrust-sheets (Pieniny Klippen Belt, Poland) has been investigated to provide information on palaeoenvironment and provenance of pelagic and turbiditic particles. The material studied shows large variations in terrigenous and biogenic content. Phyllosilicates (mirrored in amounts of Al2O3, average 15 wt.%) and carbonates (6 wt.% of CaO) are common mineral components of the deposits excluding the Cenomanian radiolarian shales (CRS) that are enriched in silica "Immobile" elements may be accommodated by phyllosilicates and accessory minerals (i.e. zircon, xenotime, apatite and Ti-oxides). Heavy minerals are significant within the Szlachtowa Fm. High field strength elements (HFSE) in the Malinowa Fm. are housed in secondary apatite and Fe-oxides. Lithophile trace elements (LILE) concentrations in the material studied are lower/comparable to Post-Archean Australian Shale (PAAS). Ba concentration in the CRS probably reflects enhanced bioproductivity. Interaction between major oxides, distributions of "immobile' and lithophile elements suggest that variation in trace elements through the succession was mainly controlled by the terrigenous input. The material studied was sourced from intermediate to felsic rocks of the Czorsztyn (Oravic) Ridge. The Szlachtowa Fm. and CRS are more mature than others due to low contents of clay minerals. The Szlachtowa Fm. also contains recycled material. The CRS correspond to the oceanic anoxic event 2 (OAE 2) whereas the "Black Flysch" of the Szlachtowa and Opaleniec formations may be related to the Early Cretaceous OAE 1
Źródło:: Geological Quarterly; 2012, 56, 1; 169-186
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 96.

Tytuł:: New ichnotaxa based on tooth impressions on dinosaur and whale bones
Autorzy:: Jacobsen, Aa. R.
Bromley, R. G.
Powiązania:: https://bibliotekanauki.pl/articles/2059250.pdf
Data publikacji:: 2009
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: bite trace
bone substrate
shark
Linichnus serratus
theropod
Knethichnus parallelum
Opis:: Traces produced by teeth on bones provide a source of information on the feeding behaviour, predator-prey relationships, and tooth morphology of the tracemaking carnivores and scavengers involved. Studies on mammals, both fossil and recent, have used tooth-scratched bones as clues to the feeding behaviour of carnivorous, scaveng ing, mineral-seeking and tooth-sharpening mammals in various ecosystems. Similarly, theropod tooth traces have the potential of being important for studying the ecology and ethology of both carnivorous and herbivorous dinosaurs. This paper augments the ichnological nomenclature for traces made by teeth on bones. Two new ichnogenera and ichnospecies, Linichnus serratus and Knethichnus parallelum, are introduced on the basis of the morphology of theropod biting damage, to focus on the resulting trace fossils as an ichnological feature and to encourage further observation and studies of distrtibution. Using similar ichnological terminology for both theropod and mammalian feeding traces, and even those of selachian sharks preying on whales or scavenging their corpses, will help coordinate biting strategies, jaw mechanism and feeding behaviour for both recent and ancient carnivores and scavengers.
Źródło:: Geological Quarterly; 2009, 53, 4; 373-382
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 97.

Tytuł:: Wstępne dane o tropach stawonogów z furongu (górnego kambru) Wiśniówki Wielkiej (Góry Świętokrzyskie) i ich tafonomii
Arthropod tracks from the Furongian (Upper Cambrian) of the Wiśniówka Wielka (Holy Cross Mountains) and their taphonomy: a preliminary report
Autorzy:: Sadlok, G.
Powiązania:: https://bibliotekanauki.pl/articles/2074827.pdf
Data publikacji:: 2011
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: Upper Cambrian
Furongian
Holy Cross Mountains
trace fossils
trilobites
taphonomy
Opis:: Previous works on arthropod trace fossils from the Furongian (Upper Cambrian) section exposed at theWioeniówkaWielka quarry (Holy Cross Mountains, Poland) focused on trilobite-made structures referred to as Rusophycus polonicus and Cruziana semiplicata. Arthropod trackways did not receive much attention. The present paper contains preliminary data on new records of arthropod trackways from the Furongian of the Wioeniówka Wielka section and on their taphonomy. The material studied comprises undetermined arthropod tracks and specimens belonging to three ichnogenera: ?Asaphoidichnus, Diplichnites and Petalichnus.
Źródło:: Przegląd Geologiczny; 2011, 59, 1; 82-90
0033-2151
Pojawia się w:: Przegląd Geologiczny
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 98.

Tytuł:: Ocena stanu zanieczyszczenia ołowiem, cynkiem i chromem osadów dennych jeziora Sunia
Assessment of lead, zinc and chromium contamination of bottom sediments in lake Sunia
Autorzy:: Sidoruk, M.
Potasznik, A.
Powiązania:: https://bibliotekanauki.pl/articles/127298.pdf
Data publikacji:: 2013
Wydawca:: Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:: antropopresja
osady denne
metale ciężkie
lakes
bottom deposits
trace elements
Opis:: Do badań mających na celu określenie stopnia zanieczyszczenia osadów dennych Pb, Zn oraz Cr wytypowano jezioro Sunia położone na obszarze Pojezierza Olsztyńskiego, stanowiącego zachodnią część Pojezierza Mazurskiego. Jezioro Sunia położone jest na wysokości 116 m n.p.m., około 30 km na północ od Olsztyna w gminie Świątki. Badane jezioro posiada powierzchnię 111,6 ha, maksymalną głębokość 8,8 m. Akwen posiada jeden dopływ po stronie południowo-zachodniej, a wody z jeziora odpływają w północno-zachodniej części akwenu. Zbiornik składa się z akwenu głównego oraz zatoki oddzielonej wypłyceniem. Całkowity obszar zasilania jeziora wynosi 450 ha, z czego większość zajmują użytki rolne. Badania wykazały, że średnia zawartość materii organicznej w osadach jeziora Sunia wynosiła 24,8%, co jest charakterystyczne dla jezior polodowcowych. Najniższą jej zawartość (12,5%) obserwowano w osadach pobranych po wschodniej stronie zbiornika oraz w miejscu wypłycenia pomiędzy zatoką a głównym akwenem, największym (30,3%) w centralnej części zatoki. Znaczna zawartość materii organicznej w osadach jeziora Sunia jest skutkiem intensywnego dopływu substancji biogennych z jego zlewni, w której prowadzono intensywną gospodarkę rolną. Wartości średniej koncentracji pierwiastków śladowych w zbiorniku układają się w następujące szeregi: Cr < Pb < Zn, a ich wzajemne proporcje kształtują się na następującym poziomie: 8,1 < 22,9 < 45,2. Obserwuje się znacznie niższe koncentracje metali w strefach litoralowych niż w profundalu.
The study aimed to determine the degree of contamination of bottom sediments Pb, Zn, Cr were selected Sunia lake located in the Olsztyn Lake District constituting the western part of the Masurian Lake District. Sunia lake is situated at an altitude of 116 m above sea level, about 30 miles north of Olsztyn, in the municipality of Świątki. The test lake has a surface 111.6 ha, a maximum depth of 8.8 m lake has one tributary of the south-west, and the waters of the lake depart in the north-western part of the basin. Lake Sunia consists of the main basin and the Gulf of shallow water separated. Total supply area of the lake is 450 ha of which the majority is arable land. The average content of organic matter in the sediments of Lake Sunia was 24.8%, which is typical of glacial lakes. The lowest content (12.5%) was observed in sediments collected on the eastern side of the tank and at the shallow water between the bay and the main sea, and the highest (30.3%) in the central part of the bay. A significant content of organic matter in the sediments of Lake is a result of intensive inflow of nutrients from the catchment, which conducted intensive farming. The average concentration of trace elements in the container are arranged in the following series: Cr < Pb < Zn, and their relative proportions are at the following rates: 8.1 < 22.9 < 45.2. There is a much lower concentration of metal in the zones littoral than in profundal.
Źródło:: Proceedings of ECOpole; 2013, 7, 2; 713-720
1898-617X
2084-4557
Pojawia się w:: Proceedings of ECOpole
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 99.

Tytuł:: Contamination and Dietary Intake Risks Assessment of Heavy Metals in Some Species of Wild Edible Mushrooms Grown in Southern Nigeria
Autorzy:: Nwokeke, Uche G.
Enyoh, Christian Ebere
Powiązania:: https://bibliotekanauki.pl/articles/1839727.pdf
Data publikacji:: 2021
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Bioaccumulation
Hazard qoutient
Mineralization
Mushroom fruiting body Nigeria
Trace elements
Opis:: In this study, wild edible mushroom collected from Rivers and Imo state Nigeria were evaluated for heavy metals and dietary intake risks assessment. Four species of edible mushrooms were collected each in Imo (Lentinus squarrosulus, Pleurotus ostreatus, Lenziles betulina and Grifola polypilus frondosa) and River state (Lentinus squarrosulus, Pleurotus tuber-regium, Lenziles betulina, Auricularia aurucula) and metals extracted using HNO3 before analysis using flame atomic absorption spectrometry (F-AAS) in Varian AA 240 FS apparatus. Results showed that all metals showed concentrations lower than the permissible limits of World Health Organization (WHO) and Food and Agricultural Organization (FAO) while Pb was not detected in all samples analyzed and Cd in samples collected from Rivers state. However, Cd was only detected (0.003 mg/kg) in one sample (Lenziles betulina) collected from Imo state. Fe exceeded recommended values in Lentinus squarrosulus, Pleurotus ostreatus and Lenziles betulina in Imo State. Bioaccumulation factors for all mushrooms were generally low (< 3). However, the potential tolerable weekly intake and target hazard quotient values for the four mushroom species were usually extremely low except for Fe (2.24) in Lenziles betulina. Consumption of mushrooms from these areas might pose no potential risk in terms of heavy metals except for Fe content in Lenziles betulina from Rivers state. However, in general, it can be concluded that the consumption of the studied mushroom species from all sites does not present any health risk arising from their regular consumption.
Źródło:: World News of Natural Sciences; 2021, 39; 1-10
2543-5426
Pojawia się w:: World News of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 100.

Tytuł:: Modeling of Trace Elements and Heavy Metals Content in the Steppe Soils of Ukraine
Autorzy:: Breus, Denys
Yevtushenko, Olha
Powiązania:: https://bibliotekanauki.pl/articles/2026736.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: trace element
spatial modeling
heavy metals
agricultural land
GIS technology
Opis:: The recent deterioration of the ecological condition of agricultural lands, the tendency of reducing soil fertility, and the production of plant products, mostly of low quality, necessitate an understanding of the role of trace elements in the process of plant formation. The content of trace elements in soils affects the efficiency of absorption of basic nutrients by plants. Deficiency of iron, manganese and zinc reduces the supply of nitrogen to plants. Copper and calcium promote the absorption of phosphorus by plants, but excess of iron inhibits it. Excess of copper and molybdenum reduces the transfer of potassium to plants. Due to high yields of agricultural crops, a significant amount of trace elements is removed from the soil, so the introduction of the optimal amount of trace elements against the background of high agricultural technology is an additional measure to increase the yields and quality of agricultural products. Heavy metals are an important environmental factor, which, on the one hand, is necessary for living organisms, and on the other (with increasing concentration of these elements in the environment) constitutes a negative factor in their lives. The activities of industrial enterprises, car exhausts and other attributes of civilization, increase the content of heavy metals in soils and as a consequence negatively affect their quality. The term “heavy metals” is used for the metals with a specific gravity exceeding 5 g/cm3 or an atomic number of more than 20. Among them, lead and cadmium are considered the most dangerous. Therefore, modeling the content of trace elements and heavy metals in the Steppe soils of Ukraine is an additional mechanism for quality control of agricultural land and, as a consequence, of obtaining quality products to ensure food security of the state.
Źródło:: Journal of Ecological Engineering; 2022, 23, 2; 159-165
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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