Results 31 to 40 of about 169,226 (376)

NOx Storage on BaTi0.8Cu0.2O3 Perovskite Catalysts: Addressing a Feasible Mechanism

open access: yesNanomaterials, 2021
The NOx storage mechanism on BaTi0.8Cu0.2O3 catalyst were studied using different techniques. The results obtained by XRD, ATR, TGA and XPS under NOx storage–regeneration conditions revealed that BaO generated on the catalyst by decomposition of Ba2TiO4 ...
Vicente Albaladejo-Fuentes   +3 more
doaj   +1 more source

The effects of administration of nonselective inhibitor of NO-synthase under X-ray radiation

open access: yesБіологічні 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
doaj   +1 more source

Prooxidative-Antioxidant Regulation in Patients with Serous Meningitis

open access: yesAktualʹnaâ Infektologiâ, 2016
Introduction. Serous meningitis takes a leading place among the central nervous system lesions, the share of which in neuroinfections structure ranges from 25 to 70 %. The imbalance in the functioning of prooxidant-antioxidant system plays a leading role
D.A. Zadiraka   +4 more
doaj   +1 more source

Reactivity of aluminum sulfate and silica in molten alkalimetal sulfates in order to prepare mullite [PDF]

open access: yes, 2004
With the aim of preparing mullite, reactions between aluminum sulfate and silica in appropriate proportions and molten sulfate media M2SO4 (M=Na and/or K) were performed at different temperatures.
Durand, Bernard   +5 more
core   +2 more sources

Role of Erythrocytes in Nitric Oxide Metabolism and Paracrine Regulation of Endothelial Function

open access: yesAntioxidants, 2022
Emerging studies provide new data shedding some light on the complex and pivotal role of red blood cells (RBCs) in nitric oxide (NO) metabolism and paracrine regulation of endothelial function. NO is involved in the regulation of vasodilatation, platelet
Damian Gajecki   +3 more
doaj   +1 more source

Evaluation of water pollution from rice cultivation using Nitrogen fertilizer in North of Iran [PDF]

open access: yesEnvironmental Resources Research, 2019
The increase of nitrite and nitrate concentrations in surface and groundwater is a greatconcern in our lives nowadays. Nitrate and nitrite in drinking water normally originate fromagricultural operation and chemical fertilizers.
Ali Heshmatpour   +3 more
doaj   +1 more source

A Lab-on-a-Chip Based Automatic Platform for Continuous Nitrites Sensing in Aquaculture

open access: yesSensors, 2022
In aquaculture, the density of fish stock, use of feeding, and surrounding environmental conditions can easily result in an excessive concentration of harmful compounds that require continuous monitoring.
Alexandro Catini   +7 more
doaj   +1 more source

Planktonic rotifers of a saline-lowland river : The Salado River (Argentina) [PDF]

open access: yes, 2002
Seasonal samples of zooplankton were taken during 1997-1999 at fifteen stations in the Salado River basin, and analysed in order to study the rotifer fauna. Spatio-temporal changes in the rotifer plankton composition were examined in the main channel and
Claps, Maria Cristina   +2 more
core   +2 more sources

The effect of natural polyphenol complex of red grape wine ON L-arginine/NO system in peripheral blood of rats under low doses of ionizing radiation [PDF]

open access: yesThe Ukrainian Biochemical Journal, 2014
The total activity of NO-synthase and content of stable metabolitic products of nitric oxide in the peripheral blood of rats under low doses of ionizing radiation and administration of natural polyphenol complex of grape was investigated.
M. V. Sabadashka   +8 more
doaj   +1 more source

Urine Specimens from Pregnant and Nonpregnant Women Inhibitory to Amplification of \u3cem\u3eChlamydia trachomatis\u3c/em\u3e Nucleic Acid by PCR, Ligase Chain Reaction, and Transcription-Mediated Amplification: Identification of Urinary Substances Associated with Inhibition and Removal of Inhibitory Activity [PDF]

open access: yes, 1998
The presence of endogenous amplification inhibitors in urine may produce false-negative results for the detection of Chlamydia trachomatis nucleic acids by tests such as PCR, ligase chain reaction (LCR), and transcription-mediated amplification (TMA ...
Chernesky, Max A.   +7 more
core   +1 more source

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