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Wyświetlanie 1-15 z 5771
Tytuł:
Sorption of pendimethalin by humin fraction isolated from the mollic horizon of Chernozems
Autorzy:
Mielnik, L.
Bejger, R.
Ukalska-Jaruga, A.
Ćwieląg-Piasecka, I.
Weber, J.
Jerzykiewicz, M.
Kocowicz, A.
Jamroz, E.
Dębicka, M.
Bekier, J.
Podlasiński, M.
Debaene, G.
Powiązania:
https://bibliotekanauki.pl/articles/53591982.pdf
Data publikacji:
2024
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
The aim of the research was to investigate interactions between pendimethalin (PE), an active substance of plant protection products, and the humin fraction (HM), which is the most recalcitrant component of soil organic matter. The soil material used for the study was collected from the mollic horizon of two Chernozems different in physicochemical properties. HM was obtained in the solid state after discarding humic acid (HA) and fulvic acid (FA) and digesting the mineral fraction in an HF-HCl mixture. Pure PE and two commercial products containing the substance (Penfox 330 EC and Stomp Aqua 455 SC), dissolved in hexane and added to the HM, were used in the research. The batch sorption experiment was carried out in accordance with OECD Guidelines for the Testing of Chemicals No.106. Spectroscopic methods (UV-Vis-nearIR and fluorescence) were used to assess the molecular characteristics of HM exposed to pesticides. The study showed significant differences in the molecular structures of the tested HM as a result of interactions with the pesticides used. The results revealed that PE had a different effect than the commercial products, and proved that the composition of commercial products significantly modified the strength and ability of organic matter to bind pesticides. This is probably related to the presence of adjuvants that are more competitive in forming bonds with the active sorption sites of HM, and thus strengthen or weaken the process of forming pesticide-HM complexes. As a result, the diversity of the molecular structure of HM and the presence of accompanying substances in commercial pesticide products interact, leading to different sorption mechanisms and durability of the resulting products.
Źródło:
Journal of Elementology; 2024, 29, 1; 37-55
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The correlations between the average semester growth rates of syntactic and lexical complexity in L2 writing development at secondary school
Autorzy:
Rokoszewska, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/52446728.pdf
Data publikacji:
2024
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu. Collegium Novum. Polskie Towarzystwo Neofilologiczne
Tematy:
Teoria Złożonych Systemów Dynamicznych
złożoność syntaktyczna
złożoność leksykalna
średnie semestralne tempo wzrostu
podłużny korpus ucznia
pisanie w J2
szkoła średnia
Complex Dynamic Systems Theory (CDST)
syntactic complexity
lexical complexity
rage semester growth rate (ASGR)
longitudinal learner corpus
L2 writing
Polish upper secondary school, the sixth form college
Opis:
The article is devoted to the development of language complexity in a relatively under-researched area of adolescent writing from the point of view of Complex Dynamic Systems Theory (CDST). It describes the second part of a panel study which aimed to examine the relationships among the average semester growth rates (ASGRs) of specific measures of syntactic and lexical complexity within and between these two subsystems in writing in English as a foreign language at the secondary school level. The study involved the analysis of The Written English Developmental Corpus of Polish Learners (WEDCPL). The corpus, which comprises over 1900 essays, was created on the basis of 21 repeated measurements conducted in a group of 100 secondary school learners during a period of three years. With respect to the specific measures of syntactic and lexical complexity, the study indicated that nominalization developed faster than subordination and coordination, and that lexical variation developed faster than lexical density and sophistication per semester. Moreover, the relationships between the ASGRs of both syntactic and lexical measures were more supportive within than between the subsystems. The main pedagogical implication for English language teachers refers to fostering more coordinated development of language complexity at secondary school in the EFL context.
Źródło:
Neofilolog; 2024, 63/1; 156-177
1429-2173
Pojawia się w:
Neofilolog
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The multifaceted response of lettuce (Lactuca sativa L.) to biofortification with iron
Autorzy:
Suliburska, J.
Kleiber, T.
Gaj, R.
Dziedzic, K.
Powiązania:
https://bibliotekanauki.pl/articles/53376142.pdf
Data publikacji:
2024
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
The biofortification of plants seems to be a beneficial dietary strategy for alleviating iron deficiency around the world. The main aim of this study was to determine the content and bioaccessibility of minerals in biofortified lettuce in relation to plant morphological parameters. The experiment was conducted in a climate chamber under controlled conditions. Plants were grown in hydroponics with the application of nutrient solutions with varied iron levels (mg dm-3): 1.5, 3.0, and 4.5. The contents of Fe, Zn, Cu, Mn, Ni, Mg, Ca, Na, and K in the lettuce were assayed after the dry ashing of the samples. The enzymatic digestion in vitro was performed using fresh lettuce plants, and then the contents of released elements were assayed. The concentrations of elements in lettuce before and after digestion were determined by atomic absorption spectrometry. In the lettuce, the contents of total, soluble, and insoluble fiber were also measured. It was found that the highest Fe level significantly increased the yield of dry matter. The studied trends of chlorophyll fluorescence change indicated a positive effect of Fe biofortification on plants but, at the same time, an increase in the carotenoid content was observed along with an increase in Fe, which may indicate the plants’ initial defense response to increasing oxidative stress. Increasing Fe biofortification also caused an increase in the chlorophyll content in leaves. The higher content of Fe and of most other elements in the plant was determined in biofortified lettuces. Generally, biofortification of iron decreased Fe bioaccessibility and increased the bioaccessibility of other elements. In conclusion, the content of iron increases, but its bioaccessibility decreases in biofortified lettuce, and plant responses can be affected by biochemical reactions connected among others to carotenoids and the chlorophyll content.
Źródło:
Journal of Elementology; 2024, 29, 1; 153-173
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wild boar (Sus scrofa L. 1758), a problematic but also a useful species – A review
Autorzy:
Rekiel, A.
Więcek, J.
Sońta, M.
Powiązania:
https://bibliotekanauki.pl/articles/52941204.pdf
Data publikacji:
2024
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
The work analyzes the impact of the wild boar on the environment. Its useful role has been demonstrated, emphasizing its sanitary function and usefulness as a bioindicator in monitoring the natural environment. The problems posed by numerous wild boar populations were analyzed, including a sanitary threat to humans and animals, a real threat to soil and ecosystems, damage to the agricultural and forest environment, negative impact on local biodiversity in anthropogenic environments, nuisance to people in urban and suburban areas. Sus scrofa can be considered as a species capable of causing disturbances to biotic and abiotic elements of the environment. The work draws attention to the threats posed by Sus scrofa and/or the threats to the species. The focus is on the animal being the vector of infections for various species of animals and humans because wild boars are susceptible to various highly contagious diseases that sometimes decimate their populations. Wild boars should be seen as beneficial animals (a bioindicator of environmental contamination, sanitary function) and at the same time problematic ones, dangerous to other species, including domestic pigs and humans, and to the environment. Due to the significant damage caused to global agriculture, to agricultural and forest crops, the threat to biodiversity, the nuisance to humans in urbanized areas related to the wild boar, there is an increasing interest in the ecology of the species and the principles of wild boar population management.
Źródło:
Journal of Elementology; 2024, 29, 3; 575-590
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Debiuty Mickiewicza, debiuty romantyków. Studia w 200. rocznicę debiutu wieszcza: 1818–2018, red. J. Ławski, Ł. Zabielski, Kraków 2021
Mickiewicz's debuts, the romantics' debuts. Studying in 200. anniversary of the poet's debut: 1818–2018, ed. J. Ławski, Ł. Zabielski, Krakow 2021
Autorzy:
Zaczkowska, Emilia
Powiązania:
https://bibliotekanauki.pl/articles/20434564.pdf
Data publikacji:
2023-08-23
Wydawca:
Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie
Źródło:
Colloquia Litteraria; 2021, 30, 1-2; 144-149
1896-3455
Pojawia się w:
Colloquia Litteraria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A comprehensive review and meta-analysis of suPAR as a predictor of acute kidney injury
Autorzy:
Jankowski, L.
Pruc, M.
Gasecka, A.
Chmielewski, J.
Wojcik, T.
Szarpak, L.
Kowalczyk, M.
Powiązania:
https://bibliotekanauki.pl/articles/28762635.pdf
Data publikacji:
2023
Wydawca:
Instytut Medycyny Wsi
Źródło:
Annals of Agricultural and Environmental Medicine; 2023, 30, 2; 364-368
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A UK Study of Thinking and Language Expression
Autorzy:
Sage, Rosemary J.W.B.
Sage, Luke D.
Kaczmarek, Bożydar L.J.
Powiązania:
https://bibliotekanauki.pl/articles/2191742.pdf
Data publikacji:
2023-03-31
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
thinking
language
narratives
assessment
solutions
Opis:
The study assessed children’s ability to develop narratives and express ideas. It comprised 120 children (5-10 years), and differences in relation to age, sex, and economic area were measured. To this end, we compared four schools in 2 economic areas (poor and average). We used 2 picture and 2 story re-telling tasks designed to elicit narrations reflecting the generation of ideas in response to visual and auditory stimuli. Significant differences for age and sex but not economic areas were found. Suggestions are made for balancing brain activity and developing more creative approaches in teaching and assessment.
Źródło:
The New Educational Review; 2023, 71; 90-100
1732-6729
Pojawia się w:
The New Educational Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ackerman, J.P. and Horowitz, L.M. (eds) (2022) Youth Suicide Prevention and Intervention: Best Practices and Policy Implications. Cham: Springer International Publishing (SpringerBriefs in Psychology). Review article
Autorzy:
Żukiewicz, Arkadiusz
Powiązania:
https://bibliotekanauki.pl/articles/53842521.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Opolski. Redakcja Wydawnictw Wydziału Teologicznego
Źródło:
Family Forum; 2023, 13; 585-588
2084-1698
Pojawia się w:
Family Forum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An analysis of the spelt dehulling process in a cylinder separator
Analiza procesu obłuskiwania orkiszu w seperatorze cylindrycznym
Autorzy:
Kolankowska, Ewelina
Choszcz, Dariusz J.
Furyk-Grabowska, Karolina
Powiązania:
https://bibliotekanauki.pl/articles/23215198.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Rolniczej
Tematy:
Triticum spelta L.
kernels
husk
threshing
dehuller
efficiency
ziarno
plewy
omłot
obłuskiwanie
wydajność
Opis:
Spelt is one of unprofitable wheat types and requires an additional hulling process, in which the husks are removed from the grain. A device for dehulling spelt kernels was proposed. The described solution consists of a stainless-steel wire mesh cylinder with 4×20 mm and 4×30 mm longitudinal openings and a rotor with adjustable blade angles. Kernels were dehulled at the following angular speeds of the shaft: 16.76, 23.04, 29.32, 35.60, and 41.89 rad‧s-1 , and the following rotor blade angles: 50°, 60°, 70°, 80°, and 90°. The efficiency of glume and glumelle removal, the proportion of damaged kernels, and kernel and husk separation efficiency were evaluated during the experiment. The highest of kernel separation efficiency ηz was 81.86% using a wire mesh cylinder with 4×30 mm longitudinal openings and 81.60% for a wire mesh cylinder with 4×20 mm longitudinal openings.
Orkisz jako pszenica miewymłacalna wymaga dodatkowego procesu obłuskiwania, w którym zostają usunięte z ziarna plewy i plewki. W pracy przedstawiono rozwiązanie konstrukcyjne obłuskiwacza ziarna orkiszu. W pracy przedstawiono rozwiązanie konstrukcyjne obłuskiwacza ziarna orkiszu. Istotą rozwiązania jest zastosowanie w badaniach powierzchni trącej w postaci sita cylindrycznego stalowego o otworach podłużnych 4×20 mm i 4×30 mm wyposażonego w wirnik z możliwością regulacji kąta pochylenia jego łopat. W urządzeniu stosowano pięć prędkości kątowych wału wirnika: 16,76; 23,04; 29,32; 35,60 oraz 41,89 rad‧s-1 oraz pięć kątów położenia łopat wirnika: 50°, 60°, 70°, 80°, oraz 90°. Przeprowadzony eksperyment pozwolił ocenić efektywność usuwania plew i plewek z ziarna orkiszu pod kątem: uszkodzeń i skuteczności wydzielenia ziarniaków oraz skuteczności wydzielenia plew. Stosując jako powierzchnię trącą cylinder sitowy o otworach podłużnych 4×30 mm największa skuteczność wydzielenia ziarniaków ηz wynosiła 81.86%. W przypadku cylindra sitowego o otworach podłużnych 4×20 mm największa skuteczność wydzielenia ziarniaków ηz 81.60%.
Źródło:
Agricultural Engineering; 2023, 27, 1; 349--365
2083-1587
Pojawia się w:
Agricultural Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Applicability of 2,4-dinitrophenylhydrazine (DNPH) method of protein oxidative damage measurement in the seminal plasma of canine (Canis lupus familiaris) and stallion (Equus caballus)
Autorzy:
Mogielnicka-Brzozowska, M.
Woźniak, M.J.
Cichowska, A.W.
Fraser, L.
Kraziński, B.
Strzezek, R.
Zielińska, D.
Powiązania:
https://bibliotekanauki.pl/articles/16647556.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
2,4-dinitrophenylhydrazine
canine
protein carbonylation
seminal plasma
stallion
Opis:
Seminal plasma (SP) proteins are responsible for sperm functional quality. Developing a reliable method to determine the degree of oxidative damage of these proteins is important for establishing semen fertilizing ability. The main aim of the study was to verify the applicability of protein carbonyl derivatives measurement in the SP of canine and stallion, using a method with 2,4-dinitrophenylhydrazine (DNPH). The research material consisted of ejaculates obtained from eight English Springer Spaniels, and from seven half-blood stallions during the breeding and non-breeding season. The content of carbonyl groups in the SP was measured on the basis of the reactions with DNPH. The following reagent variants were used to dissolve protein precipitates: Variant 1 (V1) – 6M Guanidine solution and Variant 2 (V2) – 0.1M NaOH solution. It has been shown that to obtain reliable results for the measurement of protein carbonylated groups in the dog and horse SP, both 6M Guanidine and 0.1M NaOH may be used. A correlation was also found between the number of carbonyl groups and the total protein content in the canine (V1: r = -0.724; V2: r = -0.847) and stallion (V1: r = -0.336; V2: r = -0.334) SP. Additionally, the study showed a higher content (p≤0.05) of protein carbonyl groups in the stallion SP in the non-breeding season compared to the breeding season. The method based on the reaction with DNPH, due to its simplicity and cost effectiveness, appears to be suitable for large-scale application in the determination of the SP proteins oxidative damage in dog and horse semen.
Źródło:
Polish Journal of Veterinary Sciences; 2023, 26, 2; 177-184
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in the content of D-chiro-inositol and its α-D-galactosyl derivatives during vegetation and desiccation of common buckwheat (Fagopyrum esculentum Moench)
Zmiany zawartości D-chiro-inozytolu i jego α-D-galaktozydowych pochodnych podczas wegetacji i desykacji gryki zwyczajnej (Fagopyrum esculentum Moench)
Autorzy:
Lahuta, L.B.
Szablińska-Piernik, J.
Górecki, R.J.
Mitrus, J.
Horbowicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/29433262.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Źródło:
Agronomy Science; 2023, 78, 2; 83-97
2544-4476
2544-798X
Pojawia się w:
Agronomy Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in the gene pool composition of Scots pine depending on the mode of regeneration
Autorzy:
Żukowska, W.B.
Lewandowski, A.
Wójkowicz, B.
Litkowiec, M.
Rożkowski, R.
Urbaniak, L.
Kowalczyk, J.
Powiązania:
https://bibliotekanauki.pl/articles/29430785.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Źródło:
Dendrobiology; 2023, 89; 46-55
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chemical composition, nitrate content, and yield of lettuce (Lactuca sativa L.) grown under different concentrations of NaCl
Autorzy:
Markiewicz, B.
Bosiacki, M.
Rogalski, J.
Misiak, K.
Mieloszyk, E.
Mieloch, M.
Powiązania:
https://bibliotekanauki.pl/articles/53664099.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
Global climate change observed in recent decades and the impact of anthropopressions have led to a gradual deterioration of the physical properties of and chemical properties of soil and water. One of the most important factors determining the quality of water used in a hydroponic system is salinity. The aim of this study was to determine the induced effect of sodium chloride on yield, content of selected nutrients and sodium and nitrates in aerial parts of butterhead lettuce (Lactuca sativa L.) cultivar ‘Zeralda F1’ grown hydroponically. The trials were conducted at the following concentrations of NaCl: 0 (control treatment), 10, 20, 40, 60, 80 and 100 mmol dm-3. In the range of NaCl concentrations from 10 to 80 mmol dm-3, no significant differences in fresh weight yield of lettuce were found. Significantly the lowest weight of aerial parts of lettuce was obtained at a sodium chloride concentration in the nutrient solution of 100 mmol dm-3 compared to the control combination. An increase in the concentration of NaCl in the nutrient solution resulted in an increase in the sodium content and a decrease in the content of phosphorus, potassium, and magnesium in the aerial parts of the lettuce. The iron and manganese content with the induced effect of sodium chloride in all combinations was significantly lower than in the control combination. There was a significant reduction in the nitrate content of the aerial parts of the lettuce caused by increasing concentrations of sodium chloride in the nutrient solution. The sodium chloride content in the concentration range 40-100 mmol dm-3 had a significant effect on increasing the dry matter content and decreasing the relative water potential (RWC) in the range of 60-100 mmol dm-3.
Źródło:
Journal of Elementology; 2023, 28, 4; 1237-1252
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Czy istnieją „rzetelnie niewierzący”? Odpowiedź teistyczna
Are There “Nonresistant Nonbelievers”? Theistic Answer
Autorzy:
Mordarski, Ryszard
Powiązania:
https://bibliotekanauki.pl/articles/31233176.pdf
Data publikacji:
2023
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
Tematy:
nonresistant nonbelievers
hiddenness argument
theism vs. atheism
true reasons of non-belief
Jacek Wojtysiak
J.L. Schellenberg
rzetelnie niewierzący
argument z ukrycia
teizm vs. ateizm
prawdziwe racje niewiary
John L. Schellenberg
Opis:
W złożonej argumentacji Jacka Wojtysiaka przeciwko argumentowi z ukrytości znajduje się przesłanka o istnieniu rzetelnie niewierzących. W niniejszym artykule przedstawiam powody, dla których klasyczny teista nie powinien akceptować tej przesłanki. W przeciwnym razie musiałby założyć, że wina za istnienie „rzetelnie niewierzących” tkwi po stronie Boga. A to prowadzi do destrukcyjnego dla teisty wniosku, że Bóg chrześcijański nie jest Bogiem wszech-przymiotów.
In Jacek Wojtysiak’s complex argument against the hiddenness argument of J.L.Schellenberg includes the premise of the existence of “nonresistant nonbelievers”. In this article, I present reasons why the classical theist should not accept this premise. Otherwise, he would have to assume that God is to blame for the existence of “nonresistant nonbelievers”. And this leads to the destructive conclusion for the theist that the Christian God is not a God of the omni-attributes.
Źródło:
Roczniki Filozoficzne; 2023, 71, 4; 61-80
0035-7685
Pojawia się w:
Roczniki Filozoficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Diet and selected elements of lifestyle in the Polish population before and during the COVID-19 pandemic – a population study
Autorzy:
Kucharska, A.
Sińska, B.
Panczyk, M.
Szostak-Węgierek, D.
Raciborski, F.
Samoliński, B.
Borowicz, J.
Wronka, L.
Traczyk, I.
Powiązania:
https://bibliotekanauki.pl/articles/28761673.pdf
Data publikacji:
2023
Wydawca:
Instytut Medycyny Wsi
Źródło:
Annals of Agricultural and Environmental Medicine; 2023, 30, 1; 118-126
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 5771

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