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Tytuł:
“Small in size, but big in impact”: socio-environmental reforms for sustainable artisanal and small-scale mining
Autorzy:
Owusu, Obed
Bansah, Kenneth Joseph
Mensah, Albert Kobina
Powiązania:
https://bibliotekanauki.pl/articles/92012.pdf
Data publikacji:
2019
Wydawca:
Główny Instytut Górnictwa
Tematy:
artisanal and small-scale mining
environmental pollution
environmental sustainability
ASM
livelihood
mercury
heavy metals
górnictwo tradycyjne i na małą skalę
zanieczyszczenie środowiska
zrównoważoność środowiskowa
utrzymanie
rtęć
metale ciężkie
Opis:
Artisanal and small-scale mining (ASM) - small sized, largely unrecognized, rudimentary, and an informal form of mining - occurs in more than 70 countries around the world and is mainly hailed for its socioeconomic benefits and reviled for its environmental devastation. As a result, many people are confused about the future of ASM. In Ghana, the government banned ASM in 2017 and formed a security taskforce drawn from the military and police to crack down on nomadic and local ASM workers who defy the ban. This approach is unsustainable, deals less with the fundamental problems, and increases poverty among the already impoverished local populations who depend on this type of mining as their only means of livelihood. To support the argument for sustainable reforms, revenue growth decomposition and growth accounting analyses were performed to determine the factors shaping ASM revenue over 25 years (1990-2016). Results show that production (gold output) is the most important factor that influences revenue growth from ASM, contrary to the usual view that the price of the metal is mainly responsible for the increase in revenue. Thus, increasing labor hours in ASM could significantly increase mining revenue, reduce unemployment, and improve local commerce. We strongly conclude that sustainable reforms such as increasing local participation in decision making, education and training, adoption of improved technology, strengthening regulatory institutions, legislation and enforcement of enactments, and the provision of technical support and logistics could ensure socio-environmental sustainability.
Źródło:
Journal of Sustainable Mining; 2019, 18, 1; 38-44
2300-1364
2300-3960
Pojawia się w:
Journal of Sustainable Mining
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
„Tam, gdzie nas nie spotkamy, melancholia się nami nie nażre”. Romantyczna antropologia melancholiczna w polskim black metalu
„Where We Don’t Meet Each Other, the Melancholy Won’t Stuff Itself With Us”. Romantic Melancholic Anthropology in Polish Black Metal
Autorzy:
Barski, Kamil
Powiązania:
https://bibliotekanauki.pl/articles/27307330.pdf
Data publikacji:
2023-12-15
Wydawca:
Komisja Nauk Filologicznych Oddziału Polskiej Akademii Nauk we Wrocławiu
Tematy:
melancholy
black metal
Romanticism
heavy metal
melancholia
romantyzm
Opis:
Among the many research fields, in terms of which heavy metal (counter)culture (more precisely, in this case, black metal) can be studied, the history of literature has a prominent place. The separation of the lyrics of the song from its musical layer makes it a poem which can be interpreted in various keys. As a result, it can also be established in various literary traditions. In opinion of the author – expressed also in other publications – black metal poetry has a romantic character for many reasons. In this article, literary studies combine with anthropological considerations. There is a specific concept of man that emerges from the interpretation of the lyrics, which makes us consider black metal musicians as “late grandchildren” of Romanticism, and black metal itself – as another incarnation of this movement in the history of culture. It turns out, that the most represented anthropological attitude which occurs in contemporary works of this genre is Romantic melancholy, the various manifestations of which are traced in each lyric.
Źródło:
Academic Journal of Modern Philology; 2023, 19; 9-23
2299-7164
2353-3218
Pojawia się w:
Academic Journal of Modern Philology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
26 dywizjon artylerii ciężkiej w latach 1937–1939
26th Heavy Artillery Battalion in 1937–1939
Autorzy:
Jarno, Witold
Powiązania:
https://bibliotekanauki.pl/articles/689560.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
Wojsko Polskie
Artyleria Wojska Polskiego
26 dywizjon artylerii ciężkiej
wojna polsko-niemiecka 1939
Polish Army
Artillery of the Polish Army
26th heavy artillery battalion
Polish-German war 1939
Opis:
The article describes the story of a little-known artillery unit of the Polish Army that existed in the years of the Second Polish Republic – the 26th Heavy Artillery Battalion. This unit was formed in the autumn of 1937 in Skierniewice in the area of the Corps District No. IV Łódź and was directly subordinated to the commander of the 26th Infantry Division. The creation of the 26th Heavy Artillery Battalion was one of the elements of increasing the firepower of the Polish infantry divisions. However, deficiencies in artillery equipment, caused that before the outbreak of the Second World War heavy artillery battalions were formed only in a few infantry divisions, including the 26th Infantry Division. Instead of the planned three batteries, the 26th Heavy Artillery Battalion had only two batteries (the first battery had three 105 mm cannons, and the second battery had three 155 mm howitzers). Discussed unit was mobilized in March 1939. Despite many difficulties and shortages in the equipment – mobilization was carried out efficiently, and the deficiencies were supplemented in the following weeks. In May 1939, the 26th Heavy Artillery Battalion was transported by rail to Wielkopolska (along with the 26th Infantry Division) and subordinated to the command of the „Poznań” Army. During the Polish-German war, battalion supported fire units of its own division while the battles over the river Bzura. During this time, the unit was destroyed and most of the soldiers were taken prisoner by the Germans.
Artykuł opisuje historię mało znanej jednostki artylerii Wojska Polskiego z okresu międzywojennego – 26 dywizjonu artylerii ciężkiej. Jednostka ta powstała jesienią 1937 r. w Skierniewicach na obszarze Okręgu Korpusu nr IV Łódź i została bezpośrednio podporządkowana dowódcy 26 Dywizji Piechoty. Powstanie 26 dywizjonu artylerii ciężkiej było jednym z elementów zwiększania siły ogniowej związków taktycznych piechoty polskiej. Jednak braki w sprzęcie artyleryjskim spowodowały, że do 1939 r. dywizjony artylerii ciężkiej sformowano jedynie w kilku dywizjach piechoty, w tym w 26 Dywizji Piechoty. Zamiast planowanych trzech baterii 26 dywizjon artylerii ciężkiej miał jedynie dwie baterie liczące po trzy działa (w pierwszej baterii armaty 105 mm, a w drugiej baterii haubice 155 mm). Omawiana jednostka została zmobilizowana w marcu 1939 r. Pomimo wielu trudności i braków w wyposażeniu mobilizacja odbyła się sprawnie, a braki uzupełniano w kolejnych tygodniach. W maju 1939 r. 26 dywizjon artylerii ciężkiej został przewieziony koleją do Wielkopolski (wraz z całą 26 Dywizją Piechoty) i podporządkowany dowództwu Armii „Poznań”. W wojnie polsko-niemieckiej wspierał ogniem oddziały własnej dywizji w czasie walk nad Bzurą. W ich trakcie jednostka została rozbita, a większość żołnierzy dostała się do niewoli niemieckiej.
Źródło:
Przegląd Nauk Historycznych; 2018, 17, 1
1644-857X
2450-7660
Pojawia się w:
Przegląd Nauk Historycznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A comparative analysis of the heavy metals, heavy natural radionuclides concentrations and bioindication assay of water sampled from a radium production industry storage cell territory
Analiza porównawcza zawartości metali ciężkich i naturalnych radionuklidów oraz oznaczania wskaźników biologicznych w próbkach wody z obszaru lokowania odpadów po produkcji radu
Autorzy:
Evseeva, T.
Geras'kin, S.
Shuktomova, I.
Taskaev, A.
Powiązania:
https://bibliotekanauki.pl/articles/340268.pdf
Data publikacji:
2004
Wydawca:
Główny Instytut Górnictwa
Tematy:
skażenie wody
odpady radioaktywne
skażenie metalami ciężkimi
heavy metals contamination
radioactive wastes
water contamination
Źródło:
Prace Naukowe GIG. Górnictwo i Środowisko / Główny Instytut Górnictwa; 2004, 1; 19-20
1643-7608
Pojawia się w:
Prace Naukowe GIG. Górnictwo i Środowisko / Główny Instytut Górnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A comparative study of the content of heavy metals in oils: linseed oil, rapeseed oil and soybean oil in technological production processes
Studium porównawcze zawartości metali ciężkich w olejach: lnianym, rzepakowym i sojowym w technologicznych procesach produkcyjnych
Autorzy:
Szyczewski, P.
Frankowski, M.
Zioła-Frankowska, A.
Siepak, J.
Szyczewski, T.
Piotrowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/205389.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
heavy metals
edible oils
rapeseed
soybean
linseed
metale ciężkie
proces produkcji
oleje jadalne
len
soja
rzepak
Opis:
Vegetable oils belong to a large group of substances consumed on a daily basis. World vegetable oil production is soaring, reducing the popularity of animal fats. Heavy metals pose a threat to human health. It is estimated that about 80% of the daily dose of heavy metals enters the human body through the consumption of food. Hence, it is necessary to monitor their concentrations in food products. Besides, the presence of heavy metals is thought to have possible negative influence on the quality of oils, especially on their taste and smell. Heavy metals may also accelerate the process of the rancidifiction of oils. Rapeseeds, soybean seeds and linseeds were selected for the analysis because they are one of the most popular oilseeds and at the same time they differ in terms of growing conditions. The analyses of different fractions and the ready-made product were also performed. The aim of the study was to determine the variation in concentrations of heavy metals, iron and manganese in different fractions during production. The significant concentrations of iron, manganese and zinc were observed in oilseeds. It was also shown that during different stages of oil refining the concentrations of metals decrease. The concentrations of metals are compared with those reported in literature.
Oleje roślinne stanowią szeroką grupę produktów stosowanych w codziennej konsumpcji. Ich produkcja i spożycie rosną kosztem bardziej szkodliwych tłuszczów zwierzęcych. Metale ciężkie stanowią zagrożenie dla zdrowia i życia ludzkiego. Przyjmuje się, że około 80% codziennej dawki dostaje się do organizmu człowiek wraz z żywnością. Stąd istnieje konieczność monitorowania ich stężeń w produktach spożywczych. Ponadto uważa się, że obecność metali ma wpływ na właściwości smakowo-zapachowe olejów, a także może przyspieszyć procesy ich jełczenia. Do analizy wybrano ziarna lnu, rzepaku i soi, są to jedne z najpopularniejszych roślin oleistych, a zarazem różnią się warunkami uprawy. Analizie poddano także ich frakcje produkcyjne i gotowy do konsumpcji produkt. Celem pracy było poznanie zmian stężeń metali ciężkich, żelaza i manganu w toku produkcyjnym. Zaobserwowano znaczące stężenia żelaza, manganu i cynku w ziarnach roślin oleistych. Stwierdzono, że proces produkcji skutecznie obniża stężenia metali do bezpiecznego poziomu w ilościach śladowych. Poziom stężeń jest zbliżony do doniesień literaturowych.
Źródło:
Archives of Environmental Protection; 2016, 42, 3; 37-40
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Fan-Type Heavy Pair Of Subgraphs For Pancyclicity Of 2-Connected Graphs
Autorzy:
Wideł, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/31341120.pdf
Data publikacji:
2016-02-01
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
cycle
Fan-type heavy subgraph
Hamilton cycle
pancyclicity
Opis:
Let $G$ be a graph on $n$ vertices and let $H$ be a given graph. We say that $G$ is pancyclic, if it contains cycles of all lengths from 3 up to $n$, and that it is $H-f_1$-heavy, if for every induced subgraph $K$ of $G$ isomorphic to $H$ and every two vertices $u, v \in V (K)$, $d_K(u, v) = 2$ implies $ \text{min} \{ d_G(u), d_G(v) \} \ge \frac{n+1}{2} $. In this paper we prove that every 2-connected $ \{ K_{1,3} , P_5}-f_1$-heavy graph is pancyclic. This result completes the answer to the problem of finding $ f_1 $-heavy pairs of subgraphs implying pancyclicity of 2-connected graphs.
Źródło:
Discussiones Mathematicae Graph Theory; 2016, 36, 1; 173-184
2083-5892
Pojawia się w:
Discussiones Mathematicae Graph Theory
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A holistic review of heavy metals in water and soil in Ebonyi SE, Nigeria; with emphasis on its effects on human, plants and aquatic organisms
Autorzy:
Eyankware, Moses Oghenenyoreme
Obasi, Philip Njoku
Powiązania:
https://bibliotekanauki.pl/articles/1840786.pdf
Data publikacji:
2021
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Heavy Metal
Water
Soil
Human
Uptake
Nigeria
Opis:
A comprehensive review of literature was carried out to evaluate the presence of heavy metals (HMs), with a view to study its effect on man, plants and aquatic organisms in Ebonyi State, southeastern Nigeria. From reviewed literature it was observed that the major source of HM in soil and water can be attributed to anthropogenic activities such as mining and quarrying. Geogenic activities were also implicated by some scholars. Detail analysis showed that 62 % of HMs in water and soil is attributed to mining, while 23 % is attributed to indiscriminate waste disposal, and 15 % is due of other human and geogenic activities. The accumulation of HMs in plants, soil and water poses a serious risk to human, plants and aquatic organisms within the study area. The occurrence of HMs in soil and water if not properly monitored may tend to increase in years to come and this may have negative impact on plants and aquatic organisms. Severe health effects of humans are inevitable. Therefore, constant re-evaluating of HM in water and soil in the area is highly required.
Źródło:
World News of Natural Sciences; 2021, 38; 1-19
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A modified Nuclear Model for Binding Energy of Nuclei
Autorzy:
Sirma, K. K.
Chelimo, L. S.
Khanna, K. M.
Powiązania:
https://bibliotekanauki.pl/articles/1030120.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Core
Heavy Nuclei
Isotones
Isotopes
Potential
Surface region
light Nuclei
Opis:
A new nuclear model to calculate the binding energy of nuclei is proposed. The nucleus is assumed to be composed of two regions; the inner core region and surface region. The inner core is assumed to be composed of Z proton-neutron pairs (Z = N) and the surface region is composed of the unpaired neutrons for a nucleus in which N>Z. The interaction between the core and neutrons in the surface region is assumed to be such that it leads to an average potential Vo in which each neutron in the surface region can move. Knowing the experimental values for the binding energy of nuclei, this average interaction potential Vo has been calculated for light, medium and heavy nuclei. It is found that Vo varies for isotopes and isotones. For isotopes the value of Vo decreases as the neutron number (N) in the surface region of the nucleus increases. The decrease in Vo is quite large when the neutron number increases by unity in light nuclei compared to heavy nuclei. For isotones, the value of Vo increases with an increase in proton number (Z). This is evident for both light nuclei and heavy nuclei.
Źródło:
World Scientific News; 2020, 143; 203-223
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A modular low- bed semi-trailer for transportation of machines and other heavy and big loads
Autorzy:
Koszałka, G.
Niewczas, A.
Kaczor, M.
Taratuta, L.
Głowacz, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/245791.pdf
Data publikacji:
2013
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
road transport
oversize and heavy loads
low-loader
steering system
strength analysis
FEM
Opis:
The paper presents the assumptions made and solutions used in a newly designed low-bed semi-trailer for the transportation of heavy and oversized loads, especially heavy self-propelled road machinery. During the design phase, special attention was paid to the versatility of the semi-trailer. The semi-trailer consists of 4 main modules: a hydraulic removable gooseneck allowing for coupling the semi-trailer to a tractor unit, an extendable low bed, a 2- axle bogie and a 3-axle bogie. The modules can be combined in different ways to create different configurations of the semi-trailer. Owing to that, the carrying capacity of the semi-trailer can be easily matched to the equipment carried. Depending on the current needs, the semi-trailer can have 2, 3 or 5 axles, a payload from 28 to 65 tons, and a length from 13.2 to 20.1 m. Wheeled and caterpillar vehicles can drive onto the lowbed from the front, after the gooseneck has been detached. The length and width of the bed can be adjusted within the range of 2 and 0.6 m, respectively. An important advantage of this semi-trailer is the fact that in a 2-axle configuration it meets the regulations for standard trailers and can be driven in public roads and carry normal loads without a special permission. Thanks to the fact that all its wheels are steered and controlled by a hydraulic steering system, the semi-trailer has very good manoeuvrability despite its long length. The semi-trailer meets rigorous safety demands – it is equipped with a braking system with ABS/EBS, an advanced load fixing system, marking and lighting systems and others. Research and development experiments performed during the design process, among others those concerning the steering system and optimization of the supporting structure of the semi-trailer using FEM analysis, are characterized in this paper.
Źródło:
Journal of KONES; 2013, 20, 3; 237-244
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A pilot-scale example of phytoremediation in the arctic area: comparison of zones placed at different distances from a metal emission source
Autorzy:
Kikuchi, R.
Gorbacheva, T. T.
Gerardo, R.
Powiązania:
https://bibliotekanauki.pl/articles/363242.pdf
Data publikacji:
2006
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
wierzba
fitoremediacja
metale ciężkie
miedź
nikiel
region arktyczny
Arctic
copper
heavy metals
nickel
phytoremediation
willow
Opis:
Biological methods for soil rehabilitation are comparatively cheap, but it is only a few years since the strategies of biological remediation were adopted. This paper therefore discusses the possibility of using the approach of phytoremediation (a biological method) for tackling heavy metal-contaminated land with harsh climatic conditions in the arctic region. A preliminary research on a pilot scale of 4 ha was carried out on territories subjected to continuing pollution load from the Monchegorsk smelter complex (67°51'N and 32°48'E in Russia) in order to investigate the feasibility of phytoremediation under a harsh climate (annual mean temperature of -1°C) and current pollution load (~450 to ~2,400 g ha-1 y-1 Ni, ~750 to ~2,700 g ha-1 y-1 Cu and other depositions): after a compost substratum was added to the contaminated land, metal-tolerant plants (willow and birch collected in the tolerance zone) were used for this research. The results obtained over 3 years showed the applied plants had good phytostabilization (i.e. the fixation of metals in chemically inert form); the Ni concentration (457.2 mg kg-1) and the Cu concentration (338.3 mg kg-1) in the willow leaves in the test field were 117 times and 147 times greater, respectively, than those in the background field. It is therefore indicated that Ni, Cu and other metals can be removed from metal-contaminated land by harvesting the plants (i.e. removal of annual litterfall of deciduous trees from the contaminated territory).
Źródło:
Environmental Biotechnology; 2006, 2, 1; 37-45
1734-4964
Pojawia się w:
Environmental Biotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A probabilistic approach to assessment of the quality of drinking water
Autorzy:
Wątor, Katarzyna
Kmiecik, Ewa
Postawa, Adam
Rusiniak, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/94629.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
QA/QC
water intended for human consumption
heavy metals
uncertainty
decision rules
woda przeznaczona do spożycia
metale ciężkie
niepewność
reguły decyzyjne
Opis:
Knowledge of uncertainty in analytical results is of prime importance in assessments of compliance with requirements set out for the quality of water intended for human consumption. Assessments of drinking water quality can be per-formed using either a deterministic or a probabilistic method. In the former approach, every single result is referred directly to the parametric value, while in the probabilistic method uncertainty related to analytical results is taken into account during the decision-making process. In the present research, laboratory uncertainty and uncertainty deter-mined on the basis of results of analyses of duplicate samples collected in two Polish cities were compared and used in the probabilistic approach of water quality assessment. Using the probabilistic method, more results were considered to be “above the parametric value”. Most excesses were observed when the maximum allowable uncertainty as set out in the Regulation of the Minister of Health of 7 December 2017 was used, which is due to the highest values of these uncertainties. The lowest values above parametric values in the probabilistic approach were observed when measurement uncertainty was considered.
Źródło:
Geologos; 2019, 25, 3; 249-254
1426-8981
2080-6574
Pojawia się w:
Geologos
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Review on Adsorption of Heavy Metals from Wood-Industrial Wastewater by Oil Palm Waste
Autorzy:
Ayob, Syafiqa
Othman, Norzila
Altowayti, Wahid Ali Hamood
Khalid, Faisal Sheikh
Bakar, Norshila Abu
Tahir, Muhammad
Soedjono, Eddy Setiadi
Powiązania:
https://bibliotekanauki.pl/articles/1839174.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
industrial wastewater
heavy metal
adsorption
activated carbon
oil palm waste
Opis:
The use of heavy metals in the manufacturing industry over the past few decades has eventually contributed to a rise in the flow of metallic compounds into wastewater and has raised significant ecological and health threats to living things. Adsorption is an excellent way to treat solid waste effluent, offering significant benefits such as affordability, profitability, ease of operation and efficiency. However, the price of commercial adsorbent namely activated carbon has soared due to its high demand. There is also a green improvement in this method by turning the commercial adsorbent into agricultural waste. In Malaysia, the oil palm waste is such suitable material that can be utilized for making activated carbon, since they are ample and easy to find. Additionally, part of them is agricultural waste that cannot be consumed (i.e. leaves and fronds). Hence, this study aimed to analyse the potential of activated carbon from agricultural waste, namely oil palm waste, in reducing the levels of heavy metals in industrial wastewater.
Źródło:
Journal of Ecological Engineering; 2021, 22, 3; 249-265
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A review on electron beam flue gas treatment (EBFGT) as a multicomponent air pollution control technology
Autorzy:
Basfar, A. A.
Fageeha, O. I.
Kunnummal, N.
Chmielewski, A. G.
Licki, J.
Pawelec, A.
Zimek, Z.
Warych, J.
Powiązania:
https://bibliotekanauki.pl/articles/148616.pdf
Data publikacji:
2010
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
fossil fuel combustion
heavy fuel oil
electron beam irradiation
plasma processes
flue gas treatment
SO2 removal
NOx removal
Źródło:
Nukleonika; 2010, 55, 3; 271-277
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A simple and quick model to study uptake and transfer of radionuclides and heavy metals from mycelium to the fruitbody of saprophytic edible fungi
Autorzy:
Manjón, J.
Urban, P.
Bystrzejewska-Piotrowska, G.
Powiązania:
https://bibliotekanauki.pl/articles/147291.pdf
Data publikacji:
2004
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
bioaccumulation
radionuclides
heavy metals
mushrooms
mycoextraction
Pleurotus eryngii
saprophytic fungi
Opis:
A simple model of Pleurotus eryngii mushroom culture, grown under stringent laboratory conditions, was developed to watch ecophysiological pathways of xenobiotics in saprophytic fungi. The investigated substances may be added in different stages of biological cycle of the fungus. It is emphasized that to obtain the fruitbodies, all the physiological needs of the species have to be fulfilled, i.e.: nutritional requirements, optimal temperature (according to the biological cycle), humidity, aeration (oxygen and CO2), absence or presence of the light in each reproduction phase, as well as the control of infections and plagues through all the production stages. The described model serves for investigation of radionuclide and heavy metal uptake and transfer in fungi. Double or some multiple fructification from the same substrate is possible giving a possibility to investigate bioremediation by mycoextraction.
Źródło:
Nukleonika; 2004, 49,suppl.1; 21-24
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A statistical model analysis of yields and fluctuations in 200 GeV Au-Au collisions
Autorzy:
Torrieri, G.
Jeon, S.
Rafelski, J.
Powiązania:
https://bibliotekanauki.pl/articles/148435.pdf
Data publikacji:
2006
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
fluctuations
freeze-out is small
heavy-ion collisions
statistical models
Opis:
We show that the simultaneous measurement of yields and fluctuations is capable of falsifying and constraining the statistical hadronization model. We show how such a measurement can test for chemical non-equilibrium, and distinguish between a high temperature chemically equilibrated freeze-out from a supercooled freeze-out with an oversaturated phase space. We perform a fit, and show that both yields and fluctuations measured at RHIC 200 GeV can be accounted for within the second scenario, with both the light and strange quark phase space saturated significantly above detailed balance. We point to the simultaneous fit of the K/đ fluctuation and the K*/K ratio as evidence that the effect of hadronic re-interactions after freeze-out is small.
Źródło:
Nukleonika; 2006, 51,suppl.3; 99-103
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 1651

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