Results 31 to 40 of about 44,882 (330)
The effects of administration of nonselective inhibitor of NO-synthase under X-ray radiation
Біологічні студії, 2009 Total activity of NO-synthetase and content of nitrates and nitrites in immunocompetent cells of rat peripheral blood under the influence of fraction x-ray radiation and peroral administration of L-NAME were studied. It was shown that administration of
L. O. Datsyuk +3 more
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Molecular dynamics simulation of the order-disorder phase transition in solid NaNO$_2$ [PDF]
Physical Review B 68, 174106 (2003), 2003 We present molecular dynamics simulations of solid NaNO$_2$ using pair potentials with the rigid-ion model. The crystal potential surface is calculated by using an \emph{a priori} method which integrates the \emph{ab initio} calculations with the Gordon-Kim electron gas theory.
arxiv +1 more source
Nitrite-oxidizing activity responds to nitrite accumulation in soil [PDF]
FEMS Microbiology Ecology, 2018 The factors influencing how soil nitrite (NO2-)- and ammonia (NH3)-oxidizing activities remain coupled are unknown. A short-term study (
Andrew T. Giguere +5 more
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Venus' Mass Spectra Show Signs of Disequilibria in the Middle Clouds [PDF]
, 2020 We present a re-examination of mass spectral data obtained from the Pioneer Venus Large Probe Neutral Mass Spectrometer. Our interpretations of differing trace chemical species are suggestive of redox disequilibria in Venus' middle clouds. Assignments to the data (at 51.3 km) include phosphine, hydrogen sulfide, nitrous acid, nitric acid, carbon ...
arxiv +1 more source
Distribution of groundwater nitrate in Dehloran, Iran: A case study using GIS [PDF]
Journal of Advances in Environmental Health Research, 2016 Nitrate has been the most common chemical contaminant in water resource. This ion is introduced into the water via different ways, but more items of nitrate pollution was connected with farming-based drainage and sewage effluent.
Ali Almasi +5 more
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Discussion on standard management of food additives nitrate and nitrite in meat products
Zhongguo shipin weisheng zazhi, 2021 ObjectiveAnalyze the food safety standard management of food additives nitrate and nitrite used in meat products.MethodsThe future direction of national food safety standard management is discussed through the analysis of the standards of Codex ...
DING Hao, ZHANG Jiyue, ZHANG Jianbo
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Possible contribution of olefins and heteroatoms to the Unidentified Infrared Bands [PDF]
Astron.Astrophys.402:L13-L16,2003, 2003 The current assignments of the 11.3 feature are shown to be incompatible with observations. An unbiased survey of correlation charts suggests that the olefinic group R2=CH2 is a good alternative candidate. For the 12.7 feature, the best fits are provided by nitrites, R-O-N=O, and amines, R-N=H2.
arxiv +1 more source
Nitrite in organ protection [PDF]
British Journal of Pharmacology, 2013 In the last decade, the nitrate‐nitrite‐nitric oxide pathway has emerged to therapeutical importance. Modulation of endogenous nitrate and nitrite levels with the subsequent S‐nitros(yl)ation of the downstream signalling cascade open the way for novel cytoprotective strategies.
Rassaf T, Ferdinandy, Péter, Schulz R
openaire +4 more sources
Conversion of nitrite of nitrate by nitrite-resistant yeasts.
Agricultural and Biological Chemistry, 1988 Candida species YK 11 and YK 92 and Geotrichum candidum YK 57, which were isolated as nitrite-resistants, converted nitrite in the culture medium to nitrate stoichiometrically during growth. The nitrite-oxidizing reaction was confirmed under aerobic conditions in the intact cell system with 15mM nitrite, 150mM glucose, and 100mM Tris-HCl buffer (pH 7.0)
Kenji Sakai +6 more
openaire +3 more sources
Chemosensors, 2021 We describe a fast and reliable procedure for the efficient extraction of nitrites in cured meat using microwave-assisted heat and report their in situ determination via voltammetry using an anion-exchanger ionene, hexamethyl-p-terphenyl poly ...
Sandra Hernandez-Aldave +2 more
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