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Occurrence, health risks, and geochemical mechanisms of fluoride and nitrate in groundwater of the rock-dominant semi-arid region, Telangana State, India

Human and Ecological Risk Assessment, 2018
Highly contaminated groundwater can affect the human health and constrain the economic development of a country. For this study 105 groundwater samples were collected in rock-dominant semi-arid (RDSA) region, India and analyzed for hydrochemical ...
Narsimha Adimalla, Peiyue Li
semanticscholar   +1 more source

Regulation of Nitrate Reductase in Chlorella. Nitrate Requirement for the Appearance of Nitrate Reductase Activity

Plant Science Letters, 1983
Summary Cells of Chlorella vulgaris (Cambridge culture collection, strain 211/12) grown in chemostat under conditions of nitrate limitation, exhibit very high levels of nitrate reductase activity. Similar levels of activity were found in cells grown in chemostat with a limited nitrogen source constituted by 75% ammonium plus 25% nitrate. By contrast,
Di Martino Rigano V   +4 more
openaire   +5 more sources

Nitration of ribonuclease

Biochimica et Biophysica Acta (BBA) - Protein Structure, 1968
Abstract The nitration of bovine pancreatic ribonuclease with tetranitromethane has been studied. A procedure involving solvent extraction of excess reagent and product is described. A spectrophotometric procedure for determining the extent of nitration of tyrosines has been devised, which is not vitiated by the presence of other chromophoric ...
Walter Gratzer   +3 more
openaire   +3 more sources

Nitrate tolerance

The American Journal of Cardiology, 1985
These studies have shown the following: Tolerance to the hemodynamic and antianginal effects of isosorbide dinitrate. Tolerance develops quickly and can be demonstrated within 24 hours. Tolerance is rapidly reversed and the return of normal responsiveness is seen within 21 hours withdrawal of isosorbide dinitrate.
openaire   +4 more sources

A bacterial method for the nitrogen isotopic analysis of nitrate in seawater and freshwater.

Analytical Chemistry, 2001
We report a new method for measurement of the isotopic composition of nitrate (NO3-) at the natural-abundance level in both seawater and freshwater.
D. Sigman   +5 more
semanticscholar   +1 more source

Pothole-rich Ultrathin WO3 Nanosheets that Trigger N≡N Bond Activation of Nitrogen for Direct Nitrate Photosynthesis.

Angewandte Chemie, 2018
Nitrate is a raw ingredient for the production of fertilizer, gunpowder, and explosives. Developing an alternative approach to activate the N≡N bond of naturally abundant nitrogen to form nitrate under ambient conditions will be of importance.
Youwen Liu   +11 more
semanticscholar   +1 more source

Nitrate transport: a key step in nitrate assimilation

Current Opinion in Plant Biology, 1998
The nitrate assimilation pathway has been the matter of intensive research during the past decade. Many genes involved in low and high affinity nitrate uptake have been identified in fungi, algae and, more recently, in plants. The plant genes so far isolated are transcriptionally regulated; their inducibility by nitrate seems to be a common feature ...
Daniel Vedele, Francoise   +2 more
openaire   +5 more sources

Efficient conversion of low-concentration nitrate sources into ammonia on a Ru-dispersed Cu nanowire electrocatalyst

Nature Nanotechnology, 2022
Feng-Yang Chen   +18 more
semanticscholar   +1 more source

The nitrate symmetry in metallic nitrates

Journal of Molecular Spectroscopy, 1960
Abstract An examination of the infrared spectra of metallic nitrates has shown that in progressing from a monovalent metallic nitrate to a tetravalent metallic nitrate and increased lowering of the nitrate symmetry, and a transition from a point group D3h symmetry to a point group C2v symmetry occurs.
openaire   +2 more sources

Surface tension of thallium nitrate and the binary mixtures thallium nitrate-lithium nitrate and thallium nitrate-potassium nitrate

Journal of Chemical & Engineering Data, 1977
The surface tension of molten TlNO/sub 3/ has been measured over the temperature range 220-350 /sup 0/C, using the maximum bubble pressure method. We have also measured the surface tension of the binary mixtures TlNO/sub 3/-LiNO/sub 3/ and TlNO/sub 3/-KNO/sub 3/ at 350 /sup 0/C over the entire composition range. 3 tables, 2 figures.
openaire   +2 more sources

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