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Tytuł:
Joanna Różycka-Tran, Antagonizm społeczny w umysłach ludzi i kulturach świata, Warszawa: Wydawnictwo Naukowe Scholar, 2018
Autorzy:
Biernacka, Maja
Powiązania:
https://bibliotekanauki.pl/articles/1708505.pdf
Data publikacji:
2020-10-08
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
Tematy:
social antagonism
isomorphism
zero-sum game
Źródło:
Roczniki Psychologiczne; 2020, 23, 2; 201-205
1507-7888
Pojawia się w:
Roczniki Psychologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Revision of reciprocal action of mercury and selenium
Autorzy:
Kuraś, Renata
Janasik, Beata
Wąsowicz, Wojciech
Stanisławska, Magdalena
Powiązania:
https://bibliotekanauki.pl/articles/2162011.pdf
Data publikacji:
2018-10-23
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
gene expression
polymorphism
mercury
selenium
antagonism
interaction
Opis:
Diverse forms of mercury (Hg) have various effects on animals and humans because of a variety of routes of administration. Inorganic mercury (iHg) binds to thiol groups of proteins and enzymes in one’s body or is methylated by microorganisms. Organic form of Hg, contrary to the iHg, is more stable but may be demethylated to Hg2+ in the tissue of intestinal flora. Selenium (Se) also occurs in a variety of chemical forms in one’s body but both of these elements behave very differently from one another. Mercury binding to selenide or Se-containing ligands is a primary molecular mechanism that reduces toxicity of Hg. Complexes formed in such a way are irreversible, and thus, biologically inactive. Se deficiency in a human body may impair normal synthesis of selenoproteins and its expression because expression of mRNA may be potentially regulated by the Se status. This paper provides a comprehensive review concerning Hg–Se reciprocal action as a potential mechanism of protective action of Se against Hg toxicity as well as a potential detoxification mechanism. Although interactions between Hg–Se have been presented in numerous studies concerning animals and humans, we have focused mainly on animal models so as to understand molecular mechanisms responsible for antagonism better. The review also investigates what conclusions have been drawn by researchers with respect to the chemical species of Se and Hg (and their relationship) in biological systems as well as genetic variations and expression and/or activity of selenoproteins related to the thioredoxin (thioredoxin Trx/TrxR) system and glutathione metabolism. Int J Occup Med Environ Health 2018;31(5):575–592
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2018, 31, 5; 575-592
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Concept of Violence in the Evolution of Nietzsche’s Thought
Autorzy:
Pieniążek, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/451503.pdf
Data publikacji:
2019-07-31
Wydawca:
Uniwersytet Warszawski. Wydział Filozofii
Tematy:
violence
cruelty
conflict
struggle
antagonism
domination
mastery
Opis:
The aim of this paper is to present the idea of violence in Nietzsche’s work, seen as a basic principle that organizes and unites different elements of his philosophy. Violence is one of its crucial categories, which he exploits in his descriptions and analyses of metaphysical, historical and social-cultural reality. In what follows, I shall examine different meanings and renditions of violence in Nietzsche, both in their negative as well as positive aspects. I shall start from an attempt to locate Nietzsche’s understanding of violence within the Western philosophical tradition. Then, I will discuss it in the light of the evolution of Nietzsche’s work. By analyzing the positive and constructive meaning of violence, I shall be able to conclude the essay by emphasizing that in Nietzsche’s political project violence acquires a spiritual and sublime nature.
Źródło:
Eidos. A Journal for Philosophy of Culture; 2019, 3, 2(8); 13-25
2544-302X
Pojawia się w:
Eidos. A Journal for Philosophy of Culture
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Antagonistic Activity of Actinomycetes of Streptomyces Genus in Relation to Trichoderma Koningii
Autorzy:
Breza-Boruta, B.
Paluszak, Z.
Powiązania:
https://bibliotekanauki.pl/articles/125023.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
antagonism
Streptomyces
Trichoderma koningii
soil
antifungal activity
Opis:
The aim of the study was to estimate the effect of actinomycetes of genus Streptomyces on the growth of the antagonistic fungus Trichoderma koningii. 150 strains of Streptomyces spp. isolated from two potato cropping systems were used to the tests. Analyses were conducted experimentally in vitro on PDA medium with pH 6 and 7. The results obtained clearly indicate the inhibitory effect of actinomycetes on the fungus T. koningii. Of the tested population of actinomycetes only two strains did not inhibit the growth of the tested fungus. The strains from the rhizosphere of potato cultivated under the ecological system were predominant in the group of actinomycetes with a very strong effect. pH value appeared to be a crucial factor influencing the inhibition zone. High antagonistic activity in relation to the useful fungus T. koningii noted with numerous strains of Streptomyces spp. is unfavorable in respect of biological control.
Źródło:
Journal of Ecological Engineering; 2016, 17, 1; 106-113
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tragic Victims of Mania a Potu (“Madness from Drink”): A Study of Literary Nineteenth-Century Female Drunkards
Autorzy:
Rabinovich, Irina
Powiązania:
https://bibliotekanauki.pl/articles/2032705.pdf
Data publikacji:
2021-11-22
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
female inebriation
temperance
social antagonism
patriarchy
sensational prose
Opis:
Temperance literature, though widely popular in America and Britain between 1830–80, lost its allure in the decades that followed. In spite of its didactic and moralistic nature, the public eagerly consumed temperance novels, thus reciprocating contemporaneous writers’ efforts to promote social ideals and mend social ills. The main aim of this paper is to redress the critical neglect that the temperance prose written by women about women has endured by looking at three literary works—two novellas and one confessional novelette—written by mid-nineteenth-century American female writers. These works serve as a prism through which the authors present generally “tabooed” afflictions such as inebriation among high-class women and society’s role in perpetuating such behaviors. The essay examines the conflicting forces underlying such representations and offers an inquiry into the restrictive and hostile social climate in mid-nineteenth-century America and the lack of medical attention given to alcohol addicts as the possible causes that might have prompted women’s dangerous behaviors, including inebriation. This paper also demonstrates the cautious approach that nineteenth-century female writers had to take when dealing with prevalent social ills, such as bigotry, hypocrisy and disdain directed at female drunkards. It shows how these writers, often sneered at or belittled by critics and editors, had to maneuver very carefully between the contending forces of openly critiquing social mores, on the one hand, and not being censored, on the other.
Źródło:
Text Matters: A Journal of Literature, Theory and Culture; 2021, 11; 299-318
2083-2931
2084-574X
Pojawia się w:
Text Matters: A Journal of Literature, Theory and Culture
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Antagonism between lead and zinc ions in plants
Antagonizm pomiędzy jonami ołowiu i cynku w roślinach
Autorzy:
Musielińska, R.
Kowol, J.
Kwapuliński, J.
Rochel, R.
Powiązania:
https://bibliotekanauki.pl/articles/204783.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
lead
zinc
antagonism
plants
ołów
cynk
antagonizm
rośliny
Opis:
The article presents the results of research which describes antagonism between Pb-Zn in selected plant species from the area of Czestochowa – Mirow district (north-western part of the Czestochowa Upland). There were analyzed changes in the ratio of Pb/Zn in different organs of the tested plants as a function of the Zn content changes. The content of metals in the plants and the soil was determined using atomic absorption spectrophotometry AAS. In all organs of the plants there was observed antagonistic decrease of Pb uptake and accumulation, resulting from the increase in the concentration Zn. Antagonism between Zn and Pb in roots of the tested plants occurred at Zn content of 200–600 μg/g. In turn, antagonism in stems and flowers occurred at lower contents of zinc (100–180 μg/g). In leaves, antagonism between Pb and Zn occurred when Zn was present at the level of 300–800 μg/g. Ex definition of the analyses confirm the presence of antagonism of lead with regard to high levels of Zn. The study also confirmed that the degree of antagonism depends on the plant species.
W artykule przedstawiono wyniki badań opisujące występowanie antagonizmu pomiędzy Pb-Zn w wybranych gatunkach roślin z terenu Częstochowy – dzielnica Mirów (północno-zachodnia część Wyżyny Częstochowskiej). Analizowano zmiany ilorazu zawartości Pb/Zn w poszczególnych organach badanych roślin jako funkcję zmian zawartości Zn. Zawartość metali w roślinach i w glebie została określona metodą atomowej spektrofotometrii absorpcyjnej AAS. We wszystkich organach roślin obserwowano antagonistyczny spadek pobierania i kumulacji Pb, będący skutkiem wzrostu koncentracji Zn. Antagonizm między Zn i Pb w korzeniach badanych roślin występował przy zawartości Zn 200–600 μg/g. Z kolei w łodygach i w kwiatach, antagonizm występował przy niższych zawartościach cynku (100–180 μg/g). W liściach antagonizm pomiędzy Pb i Zn pojawiał się w przypadku obecności Zn na poziomie zawartości 300–800 μg/g. Szczegółowe wyniki analiz potwierdzają obecność antagonizmu ołowiu w niektórych roślinach, w odniesieniu do dużych zawartości cynku. Badania potwierdziły także, że stopnień antagonizmu zależy od gatunku rośliny.
Źródło:
Archives of Environmental Protection; 2016, 42, 2; 78-91
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Enzymatic profiles and antimicrobial activity of the yeast Metschnikowia pulcherrima
Autorzy:
Pawlikowska, E.
Kręgiel, D.
Powiązania:
https://bibliotekanauki.pl/articles/105724.pdf
Data publikacji:
2017
Wydawca:
Centrum Badań i Innowacji Pro-Akademia
Tematy:
Metschnikowia pulcherrima
pulcherrimin
enzymatic activity
antagonism
aktywność enzymatyczna
antagonizm
Opis:
The aim of the study was to characterize the antimicrobial properties of 5 strains belonging to the yeast species Metschnikowia pulcherrima. The antimicrobial activity of the strains was studied by observing pulcherrimin production and inhibition of microbial growth on YPG plates. Enzymatic assays were carried out using API ZYM tests. All strains of M. pulcherrima showed α-glucosidase and leucine arylamidase activities. The widest spectrum of activity was observed for strains NCYC2321, CCY145, and CCY149. All tested strains produced pucherrimin, and the yeasts Wickerhamomyces anomalus and Dekkera bruxellensis, the bacterium Bacillus subtilis and the moulds Penicillium chrysogenum and Aspergillus brasiliensis were the most sensitive to M. pulcherrima.
Źródło:
Acta Innovations; 2017, 23; 17-24
2300-5599
Pojawia się w:
Acta Innovations
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi-mycotoxicosis
Autorzy:
Gajęcki, M.
Zielonka, Ł.
Obremski, K.
Jakimiuk, E.
Gajęcka, M.
Powiązania:
https://bibliotekanauki.pl/articles/363270.pdf
Data publikacji:
2007
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
antagonizm
pasza
mykotoksyna
synergizm
antagonism
feed materials
mycotoxicosis
synergism
Opis:
Contamination of food and feeds with mycotoxins is a major problem of human and animal's health concern, and it is also extremely detrimental to economy. Mycotoxin-producing moulds may produce the most known mycotoxins, such as aflatoxins, ochratoxin, trichothecenes, zearalenone and fumonisin. Although toxicological, environmental and epidemiological studies have addressed the problem of these toxins one by one, more than one mycotoxin is found usually in the same contaminated commodities. That raises the incommensurable problem of multi-mycotoxicosis in which the respective metabolites are also involved. These mycotoxins bear potential toxicity leading to acute and chronic effects in humans and animals, depending on species. The mechanisms that lead to toxic effects, such as immune toxicity and carcinogenicity, are complex. The risk assessment for humans potentially exposed to multi-mycotoxins suffers very much from the lack of adequate food consumption data. Furthermore, for a given mycotoxin additive, synergism and antagonism with other mycotoxins found in the same food commodities are usually not taken into account.
Źródło:
Environmental Biotechnology; 2007, 3, 1; 25-29
1734-4964
Pojawia się w:
Environmental Biotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Isolation of bacteria from soil sample of Tamil Nadu and their in vitro interaction
Autorzy:
Sankari, D.
Khusro, Ameer
Aarti, Chirom
Powiązania:
https://bibliotekanauki.pl/articles/1031683.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Antagonism
B. subtilis
CFU
E. coli
Interaction
P. aeruginosa
Opis:
The present study was investigated to determine the competitive interaction between Gram positive (B. subtilis) and Gram negative (P. aeruginosa and E. coli) bacteria in vitro. Bacteria of interest were isolated from soil sample and were identified through morphological and biochemical tests. Bacterial cultures were grown alone and as co- culture in test tubes containing sterile broth. Bacterial growth and their growth inhibition in co- culture tubes were analyzed till 96 h through spectrophotometric assay and colony forming unit (CFU) assay. Spectrophotometric analysis and CFU/mL assay showed that the effect of B. subtilis on P. aeruginosa and E. coli in co- culture tubes was growth inhibitory. This is accompanied by the reduction in absorbance value and CFU/mL of the co-culture tubes. The bactericidal activity of B. subtilis was measured on P. aeruginosa and E. coli using agar well diffusion method. B. subtilis showed zone of inhibition of 8 mm and 6 mm against P. aeruginosa and E. coli, respectively. The antagonistic activity test of B. subtilis favoured the spectrophotometric and colony forming assay results. These results suggest that B. subtilis develop adaptational pathways by extracellular signaling molecules and antibacterial factors in order to compete with bacterial neighbors.
Źródło:
World News of Natural Sciences; 2020, 28; 67-75
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Antagonism of higher fungi to Heterobasidion annosum (Fr.) Bref. in laboratory conditions
Badania nad antagonizmem pomiędzy grzybami mikoryzowymi a grzybem Heterobasidion annosum (Fr.) Bref. w warunkach in vitro
Autorzy:
Napierala-Filipiak, A.
Werner, A.
Powiązania:
https://bibliotekanauki.pl/articles/41433.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Heterobasidion annosum
antagonism
mycorrhizal fungi
higher fungi
fungi
laboratory condition
Opis:
Interactions between 42 higher fungi and six strains of Heterobasidion annosum (Fr.) Bref., representing P and S intersterility groups were studied in vitro. Part of the higher fungi was represented by strains of ectomycorrhizal fungi indigenous to old disease centres caused by H. annosum in pine stands. Variation in antagonism to the pathogen was observed both within and between the species. The antagonism was dependent on growth rates of fungi in control. Fungi growing faster displayed a greater ability to arrest the development of the pathogen mycelia. The same tendency was observed in the strains of H. annosum, which generally grew faster and their growth was restricted less than that of higher fungi. Two strains of an ectedomycorrhizal fungus Mrg X, accompanied by a helper bacteria reduced mycelial extension of H. annosum by 72% and 76%. Among ectomycorrhizal fungi, the most effective antagonists were strains of Xerocomus subtomentosus, Amanita muscaria, A. citrina and Laccaria laccata. Three various types of interaction between the studied fungi were observed. Inhibition zone between interacting mycelia appeared often, however the fungi displayed this antagonistic property not to all strains of the pathogen. Although mycelia of H. annosum invaded colonies of the other fungi frequently, in none of the treatments growth of the higher fungus over the opposing colony of the pathogen was observed.
W warunkach in vitro przebadano wpływ czterdziestu dwóch szczepów grzybów wyższych naogra niczanie wzrostu sześciu szczepów Heterobasidion annosum należących do dwóch intersterylnych grup P i S. Badania prowadzono według metody opisanej przez Marxa (1969). Grzyby hodowano w szalkach Petriego, na pożywce Pp (Pachlewski 1983). Po dwóch tygodniach mierzono powierzchnię kolonii obu grzybów (w cm2), strefę inhibicji (w mm) oraz opisano sytuację zaistniałą na szalce. Badane grzyby wyższe wykazywały znaczne zróżnicowanie stopnia ograniczania wzrostu grzyba H. annosum. Najlepszymi antagonistami w stosunku do sześciu badanych szczepów patogena okazały się szczepy grzyba ektendomikoryzowego oznaczonego symbolem Mrg X (18–1z i 19–1z), których grzybnie wykazywały obecność bakterii, szczep grzybaektomikoryzowego z gatunku Amanita muscaria (16–3), szczep grzybaniemikoryzowego Hygrophoropsis aurantiaca (55–1) oraz grzyba Phallus impudicus (26–1) nie tworzącego z sosną symbiozy. Obok zmienności międzygatunkowej stwierdzono dużą zmienność wewnątrzgatunkową. Różnice pomiędzy szczepami z gatunków: A. muscaria, Suillus luteus, Paxillus involutus czy H. aurantiaca były niekiedy bardziej znaczące niż pomiędzy gatunkami. Badane grzyby mikoryzowe cechowały się stosunkowo wolnym wzrostem na pożywce, natomiast większość badanych szczepów H. annosum wzrastała szybko. Stwierdzono zależność pomiędzy szybkością wzrostu a stopniem negatywnego oddziaływanianawzrost grzybów w bikulturach. Szczepy grzybów wyższych charakteryzujące się szybszym wzrostem przejawiały większą zdolność hamowania wzrostu szczepów grzyba H. annosum i jednocześnie wykazywały większą tolerancję na obecność patogena.
Źródło:
Dendrobiology; 2000, 45
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Few Problems with Mouffe’s Agonistic Political Theory
Autorzy:
Mazur-Bubak, Monika
Powiązania:
https://bibliotekanauki.pl/articles/594494.pdf
Data publikacji:
2019
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
Agonism
antagonism
Mouffe
Freud
aggression
liberal-democracy
nature of politics
Opis:
he main goal of examining a single philosophical theory, connected with social and political disciplines, is not just to identify its incoherence or to restate the theory in a more elegant way. More important in that kind of investigation is to show its possible impact on people’s lives and the functioning of communities. Thus, it seems more reasonable to conduct a critical analysis of the possible consequences for a real society than to undertake a simple study of the argument’s logical consistency. The main aim of this paper is to introduce doubts about the thesis of Chantal Mouffe presented by her in Agonistics. Thinking the World Politically and Passion and Politics. Main hypothesis is that thinking about the “political” and “politics” with reference to enmity as well as claiming that the source of every political and social activity is antagonism, can provoke an attitude that social and political scenes are battlefields rather than an agora or the space of human interactions. First of all, the author provides the critical analysis and reconstruction of the most important claims connected with the “political”, which can have strong negative effects-i.e. brutalization and creating a negative basis for social relation. Then presents a few possible sources of thinking of “political” as a “competition” or rather “enmity”. The last part it is the critic of what Mouffe claims about reason why people get involve into politics, based on the psychological experiments and in result of this the author shows the importance of validity the high standards in politics, diplomacy and relation on the social level.
Źródło:
Polish Political Science Yearbook; 2019, 2 (48); 307-318
0208-7375
Pojawia się w:
Polish Political Science Yearbook
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Use of microorganisms in plant protection against fungal diseases
Wykorzystanie mikroorganizmów w ochronie roślin przed chorobami powodowanymi przez grzyby
Autorzy:
Nowocień, K.
Sokołowska, B.
Powiązania:
https://bibliotekanauki.pl/articles/13925582.pdf
Data publikacji:
2020
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
plant protection
microorganism
antagonism
biological control
ochrona roslin
mikroorganizmy
antagonizm
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 2020, 603; 41-52
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Culturable endophytic Pseudomonas fluorescens Z1B4 isolated from Zanthoxylum alatum Roxb. with stress-tolerance and plant growth-promoting potential
Autorzy:
Vyas, P.
Kaur, R.
Powiązania:
https://bibliotekanauki.pl/articles/2096416.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
antagonism
endophytes
fluorescent Pseudomonas
phosphate solubilization
medicinal plants
Northeast India
Opis:
Endophytes are an important constituent of sustainable agriculture because of their ability to produce a large number of agriculturally important metabolites. A salt-tolerant fluorescent green pigment-producing endophytic bacterium was isolated on 2.5% NaCl-supplemented nutrient agar from the leaf samples of Zanthoxylum alatum Roxb. The isolate Z1B4 was identified as Pseudomonas fluorescens based on morphological features, fatty acid methyl ester analysis, biochemical tests, and 16S rRNA gene sequencing. P. fluorescens Z1B4 showed positive results for tricalcium phosphate solubilization; 1-aminocyclopropane-1-carboxylate (ACC) deaminase activity; and production of auxins, siderophores, hydrogen cyanide, and ammonia. P. fluorescens Z1B4 also showed strong antagonistic activity against Curvularia lunata (MTCC 283), Fusarium verticillioides (MTCC 3322), and Alternaria alternata (MTCC 1362) and exhibited stress tolerance to a wide range of temperature and pH and concentrations of NaCl and calcium salts. Under natural conditions, following inoculation with the isolate Z1B4, a significant increase in the growth of pea and maize test plants in pots was observed compared to that of uninoculated control plants. The rifampicin-resistant mutant Z1B4Rif was recovered from the roots, shoots, and leaves of the test plants, indicating that the isolated endophytic bacterium can grow well within different plant tissues. The present study indicated that the endophytic bacterium P. fluorescens Z1B4 can be used as a bacterial inoculant in stressed environments for sustainable agriculture.
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2021, 102, 3; 285-295
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quality and Nutritional Value of Silages Made from Grasses Derived from the Farms Located in the Region of Krakow-Czestochowa Jura Part II Content of Macroelements
Jakość i wartość pokarmowa kiszonek sporządzonych z traw pochodzących z gospodarstw położonych na terenie Jury Krakowsko-Częstochowskiej Cz II Zawartość makrślementów
Autorzy:
Radkowska, I.
Radkowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/389443.pdf
Data publikacji:
2010
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
kiszonki
zawartość makroelementów
antagonizm pierwiastków
silages
macroelement content
antagonism of elements
Opis:
This paper presents an estimation of the mineral composition of silages derived from farms specialized in milk production from the region of Krakow-Czestochowa Jura. The samples of silages, four from each farm, were collected for the chemical analysis before grazing. The phosphorus and magnesium content was estimated by the colorimetric, vanadium-molybdenic method, whereas the potassium, sodium and calcium content using flame photometry. Silages from all investigated farms did not reach the optimal P, Ca and Na content, which indicates too low a level of phosphorous fertilization as well as limited liming of grasslands located in the investigated farms. On the other hand, an excessive amount of potassium results from fertilization with liquid manure, leading to the accumulation of this element, which is calcium and magnesium antagonist. Proportions between mineral component content in the examined silages were diversified. Only 42 % of samples had Ca:Mg weight ratio and K: (Ca + Mg) ionic ratio at the optimal level and 33 % of silage trials were characterised with the optimal K:Mg ratio. The other proportions, especially K:Ca and K:Na, were unfavourably too high.
Praca prezentuje ocenę składu mineralnego kiszonek z gospodarstw specjalizujących się w produkcji mleka z terenu Jury Krakowsko-Częstochowskiej. Przed skarmianiem z kiszonek pobrano próbki (po 4 z każdego gospodarstwa) do analizy chemicznej. Zawartość fosforu i magnezu oznaczono kolorymetrycznie metodą wanadowo-molibdenową, potasu, sodu i wapnia metodą fotometrii płomieniowej. Kiszonki ze wszystkich gospodarstw nie miały optymalnej zawartości P, Ca, Na, wskazuje to na zbyt niskie nawożenie fosforem i ograniczenie wapnowania użytków zielonych w badanych gospodarstwach. Z kolei zbyt wysoka zawartość potasu wskazuje na nawożenie użytków zielonych gnojowicą. W wyniku tego nawożenia następuje kumulacja potasu, który jest antagonistą wapnia i magnezu. Wartość stosunków ilościowych między pierwiastkami w kiszonkach była zróżnicowana. Jedynie stosunek masowy Ca:Mg i jonowy K:(Ca + Mg) w 42 % próbek oraz stosunek masowy K:Mg w 33 % próbek kiszonek miał wartość optymalną. Pozostałe stosunki, szczególnie K:Ca i K:Na odznaczały się niekorzystnymi wartościami - zbyt wysokimi.
Źródło:
Ecological Chemistry and Engineering. A; 2010, 17, 10; 1303-1307
1898-6188
2084-4530
Pojawia się w:
Ecological Chemistry and Engineering. A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
THE INFLUENCE OF KETOPROFEN AND ZINC OXIDE NANOPARTICLES ON SERUM COPPER LEVEL IN RATS
Autorzy:
Olbert, Magdalena
Krośniak, Mirosław
Gdula-Argasińska, Joanna
Librowski, Tadeusz
Zygmunt, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/956850.pdf
Data publikacji:
2018
Wydawca:
Zakład Opieki Zdrowotnej Ośrodek Umea Shinoda-Kuracejo
Tematy:
inflammation
ketoprofen
serum copper level
zinc oxide nanoparticles
zinc-copper antagonism
Opis:
The role of copper in anti-inflammatory response includes several mechanisms. Antagonism between zinc (Zn) and copper (Cu) and proper balance between the two elements in the organism may affect the course of inflammatory diseases. Copper is a component of Zn/Cu superoxide dismutase (Zn/Cu SOD) and other enzymes involved in the anti-inflammatory response of the organism. To investigate the serum copper level during inflammation and diseases, numerous researches were conducted. Copper deficiency or copper intoxication may lead to biological consequences. Copper deficiency may be caused by various factors, one of them is excessive zinc supplementation. The aim of the study was to investigate the alterations in the serum copper level after 2-week zinc oxide nanoparticles (NPs-ZnO) administration. The second aim was to investigate serum copper level alterations after 2-week NPs-ZnO and single ketoprofen administration. The inflammatory state was induced in each group by the carrageenan injection at the 15th day of the experiment. The results indicate for the decrease in serum copper level in group receiving NPs-ZnO compared to control. Moreover, in groups receiving NPs-ZnO as well as ketoprofen, a decrease in serum copper level was observed. We may conclude that NPs-ZnO administration and also ketoprofen administration acts as anti-inflammatory agents and may induce a decrease in serum copper level.
Źródło:
Medicina Internacia Revuo; 2018, 28, 110; 11-22
0465-5435
Pojawia się w:
Medicina Internacia Revuo
Dostawca treści:
Biblioteka Nauki
Artykuł
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