Results 351 to 360 of about 592,785 (393)
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AACN Advanced Critical Care, 1992
Nitrates have been used for the last 130 years to treat and control the symptoms of angina pectoris. Within the last 15 years, nitrates also have been shown to limit infarct size and to be beneficial in the treatment of patients with severe intractable heart failure, cardiogenic shock, severe mitral and aortic regurgitation, hypertensive episodes, and ...
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Nitrates have been used for the last 130 years to treat and control the symptoms of angina pectoris. Within the last 15 years, nitrates also have been shown to limit infarct size and to be beneficial in the treatment of patients with severe intractable heart failure, cardiogenic shock, severe mitral and aortic regurgitation, hypertensive episodes, and ...
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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
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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
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Nitrates removal by bimetallic nanoparticles in water
, 2016Nitrate contamination of groundwater has become a major environmental concern since nitrates are easily transferred from unsatured zone to the satured one, due to their solubility and low sorptivity on soil particles caused by their negative charge.
Gunay G. Muradova +3 more
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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.
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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.
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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
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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
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Advanced techniques to remove phosphates and nitrates from waters: a review
Environmental Chemistry Letters, 2021Karthikeyan Velusamy +6 more
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The nitrate symmetry in metallic nitrates
Journal of Molecular Spectroscopy, 1960Abstract 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.
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2014
Nitrates are salts of the nitric acid (HNO3). It has been estimated that one quarter of the initial Martian atmospheric molecular nitrogen today is fixed in the form of nitrates in the soil. A possible formation process of these nitrates is the dissociation of the atmospheric molecular nitrogen through shock heating caused by impacts or through ...
Daniela Tirsch +2 more
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Nitrates are salts of the nitric acid (HNO3). It has been estimated that one quarter of the initial Martian atmospheric molecular nitrogen today is fixed in the form of nitrates in the soil. A possible formation process of these nitrates is the dissociation of the atmospheric molecular nitrogen through shock heating caused by impacts or through ...
Daniela Tirsch +2 more
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Nitrate transport: a key step in nitrate assimilation
Current Opinion in Plant Biology, 1998The 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
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THE ACTION AND EXCRETION OF NITRATES
, 1930Nitrates have long been recognized as effective diuretics. Thomas Willis, 1 in 1679, used potassium nitrate or "the salt of niter" in the treatment of dropsy.
N. M. Keith, M. Whelan, Edwin G. Bannick
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