Results 241 to 250 of about 15,630 (267)
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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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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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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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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 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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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.
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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.
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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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JAMA: The Journal of the American Medical Association, 1977
To the Editor.— We felt Dr Reichek's recent review "Long-Acting Nitrates in the Treatment of Angina Pectoris" (236:1399, 1976) was an excellent survey of the clinical pharmacology of these compounds. However, he raised one point with which we cannot fully agree and which we feel the recent literature does not support. In the discussion on toxicity of
David Robertson, Rose Marie Stevens
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To the Editor.— We felt Dr Reichek's recent review "Long-Acting Nitrates in the Treatment of Angina Pectoris" (236:1399, 1976) was an excellent survey of the clinical pharmacology of these compounds. However, he raised one point with which we cannot fully agree and which we feel the recent literature does not support. In the discussion on toxicity of
David Robertson, Rose Marie Stevens
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The Nitration of Diphenyliodonium Nitrate [PDF]
Journal of the American Chemical Society, 1939 F. Irwin, F. T. McClure, R. B. Sandin
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Nitrate signalling: Calcium bridges the nitrate gap
Nature Plants, 2017Nitrate signalling: Calcium bridges the nitrate gap.
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