Browsing by Issue Date Artículos de revistas
Now showing items 1141-1160 of 2801
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(2005)Glu-tRNA is either bound to elongation factor Tu to enter protein synthesis or is reduced by glutamyl-tRNA reductase (GluTR) in the first step of tetrapyrrole biosynthesis in most bacteria, archaea and in chloroplasts. ...
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(2005)Surface-enhanced micro-Raman spectroscopy (micro-SERS) was used to detect traces of the hazardous pollutant polycyclic aromatic hydrocarbons (PAHs) pyrene and benzo[c]phenanthrene deposited onto a calix[4]arene-functionalized ...
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(TAYLOR & FRANCIS INC., 2005)The synthesis of 2-(2-nitrophenyl)-1H-benzimidazole (1), 1-benzoyl-2-(2-nitrophenyl)-1H -benzimidazole (2), and 1-acetyl-2-(2-nitrophenyl)-1H-benzimidazole ( 3) is reported. Stable radical anions (1(center dot-), 2(center ...
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(Sociedad Española de Cardiología, 2005)La guanosina trifosfatasa pequeña Rho y su blanco Rho-cinasa desempeñan un papel importante en la regulación de la presión arterial y en la contracción de la musculatura lisa vascular. Diversos agonistas de los receptores ...
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(Chile, Centro de Información Tecnológica, 2005)En este trabajo se informa sobre algunos factores de emisión para seis monoterpenos emitidos por Cryptocarya alba (peumo) y Schinus molle (pimiento), especies que corresponden al 2,5% de las especies arbóreas de la Región ...
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Voltammetric behavior of a 4-nitroimidazole derivative - Nitro radical anion formation and stability (ELECTROCHEMICAL SOC INC, 2005)A new synthesized compound, 1-methyl-4-nitro-2-hydroxymethylimidazole (4-MNImOH), was electrochemically reduced at the mercury electrode in aqueous, mixed, and aprotic media. In an aqueous medium, only one voltammetric ...
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(SOC BRASILEIRA QUIMICA, 2005-01)1,4-dihydropyridine derivatives constitute an important pharmacological group for the treatment of cardiovascular diseases. We have synthesised a series 4-(5'-nitro-2'-furyl)-1,4-dihydropyridine derivatives, which were ...
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Electrogeneration of nitranion species from nitrofuryl substituted 1,4-dihydropyridine derivatives (ELSEVIER SCIENCE, 2005-01)We have synthesized and studied the electroreduction of 1,4-dihydropyridine derivatives with a nitrofuryl substituent at 4-position. The one-electron reduction of these compounds in non-aqueous medium generates the ...
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(ELSEVIER SCI IRELAND, 2005-01-15)It is generally accepted that copper toxicity is a consequence of the generation of reactive oxygen species (ROS) by copper ions via Fenton or Haber-Weiss reactions. Copper ions display high affinity for thiol and amino ...
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(DUSTRI-VERLAG DR KARL FEISTLE, 2005-02)Introduction: The exposure to high altitude (H) produces several physiologic alterations which may induce changes in the pharmacokinetics of drugs. This hypothesis has been confirmed in previous studies which suggest that ...
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(WILEY-V C H VERLAG GMBH, 2005-02)The electrochemical behavior of three different megazol analogues substituted at position 4 and their comparison with the parent compound megazol in protic and aprotic media by cyclic voltarnmetry, Tast and differential ...
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(ELSEVIER SCIENCE INC, 2005-02-01)Meeting Abstract
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(PERGAMON-ELSEVIER SCIENCE LTD, 2005-02-15)Elevated serum tumor necrosis factor alpha JNF-alpha) levels predict mortality in patients with alcoholic liver disease. Administration of anti-TNF-alpha antibodies, obliteration of Kupffer cells or gut sterilization protect ...
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(AMER CHEMICAL SOC, 2005-03)We report a new and specific mechanism for iron-mediated neurotoxicity using RCHT cells, which were derived from rat hypothalamus. RCHT cells exhibit immunofluorescent-positive markers for dopamine beta-hydroxylase and the ...
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(AMER SOC PHOTOBIOLOGY, 2005-03)Thyronine derivatives are essential indicators of thyroid gland diseases in clinical diagnosis and are currently used as standards for developing ordinary biochemical assays. Photooxidation of gland hormones of the thyronine ...
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(SOCIEDAD CHILENA DE QUIMICA, 2005-03)Molecular recognition based on chirality has fundamental importance in many biological processes. Deuterium quadrupole splittings from the aromatic ring and mesophase components of two series of optical isomers, L-and ...
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(ENDOCRINE SOC, 2005-03)There is increasing evidence for rapid nongenomic effects of aldosterone. Aldosterone has been demonstrated to alter intracellular pH and calcium in isolated cells. However, few studies have correlated these effects with ...
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Determination of the sum of malachite green and leucomalachite green in salmon muscle by liquid ... (ELSEVIER SCIENCE BV, 2005-03-04)A sensitive method for the determination and confirmation of the sum of malachite green (MG) and leucomalachite green (LMG) in salmon muscle has been developed. It is based on the use of an oxidative pre-column reaction ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2005-03-10)he reaction between sulfathiazole and cobalt(II) leads to a pink solid, [Co-II(ST)(2)(H2O)(4)] (1), which, after 7-10 days in the mother solution, transforms into red crystals of [Co-II(ST)(2)(H2O)(3)](n) (2) (ST = ...
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(AMER CHEMICAL SOC, 2005-03-30)The sorption behavior of gallium and indium into a microcapsule containing 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester is investigated. The effects of pH and metal concentration on sorption rate are investigated ...