Browsing by Issue Date Artículos de revistas
Now showing items 1261-1280 of 2801
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(AMER CHEMICAL SOC,, 2006-01-23)The trimer [Co-3(mu-OOCCF3)(4)(mu-H2O)(2)(OOCCF3)(2)(H2O)(2)(C4H8O2)]center dot 2C(4)H(8)O(2) (1) is composed of three tetragonally distorted Coll centers bridged by four trifluoroacetates and two bridging water molecules. ...
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(WILEY-V C H VERLAG GMBH, 2006-01-30)The development of a new method for the diamination of alkenes is reported. It is based on a reaction in the presence of stoichiometric or catalytic amounts of chiral auxiliaries, which permits the direct synthesis of ...
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(BENTHAM SCIENCE PUBL LTD, 2006-02)Free radicals may be reaction intermediates in biological systems in more situations than are presently recognized. However, progress in detecting such species by Electron Spin Resonance (ESR) has been relatively slow. ESR ...
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(ELSEVIER SCIENCE, 2006-02-27)Magnetised silica-based microparticles (MMPs) (5 mu m) with a high density of nanopores were used for horseradish peroxidase (HRP) immobilization and amperometric biosensor development in batch conditions. The resulting ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2006-02-28)To determine circulating angiotensin-(1-7) [Ang-(1,7)] levels in rats with different angiotensin converting enzyme (ACE) genotypes and to evaluate the effect of hypertension on levels of this heptapeptide, plasma levels ...
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(AMER SOC MICROBIOLOGY, 2006-03)Salmonella enterica serovar Typhi causes typhoid fever in humans. Central to the pathogenicity of serovar Typhi is its capacity to invade intestinal epithelial cells. The role of lipopolysaccharide (LPS) in the invasion ...
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(SOCIEDAD CHILENA DE QUIMICA, 2006-03)In QSRR discipline an easy novel to used parameter was designed (Vc) for evaluated classical topological index (W, (1)chi, Z, MTI) and two new generation ones (Xu, (1)chi(h)). Regression between Vc and (1)chi(h) presented ...
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(ELSEVIER, 2006-03)In recent years, cell-penetrating peptides have proven to be an efficient intracellular delivery system. The mechanism for CPP internalisation, which first involves interaction with the extracellular matrix, is followed ...
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(JOHN WILEY & SONS, 2006-04)This work shows the synthesis and characterization of new carbonyl complexes derived of 1,8-naphthyridine. Covalently bonded complex can be successfully employed in building of supramolecular structures.
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(AOAC INTERNATIONAL, 2006-04)A rapid and simple continuous method for the extraction of nifedipine from tablets was developed by using pressurized hot water at 150 degrees C. This is the first time that subcritical water was applied to the extraction ...
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(AMER CHEMICAL SOC, 2006-04-10)Three structures of novel cluster carboxylates of molybdenum(II) (la-c) and copper(II) (2) with the OOC-CCHCo2(CO)(6) ligand are presented. The solvent topology plays an important role in the formation of the crystal lattice ...
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(AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC, 2006-04-28)Tetanic electrical stimulation of myotubes evokes a ryanodine receptor-related fast calcium signal, during the stimulation, followed by a phospholipase C/inositol 1,4,5-trisphosphate-dependent slow calcium signal few seconds ...
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(JOHN WILEY, 2006-05)A series of polypyridine ruthenium complexes of the general formula [Ru(Rph-tpy)[dppz(COOH)]Cl) PF6 with R = Br (1), Cl (2), NO2 (3) where Rph-tpy is 4'-(4-Rphenyl-2,2':6',2"-terpyridine and dppz(COOH) is dipyrido[3,2-a: ...
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(BLACKWELL PUBLISHING, 2006-05)Recent studies suggest thyrotrophin-releasing hormone (TRH) serves as a neurotransmitter and thereby provides a functional vegetative connection between the brain and the ovary. In the present study, magnocellular neurones ...
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(2006-05)BACKGROUND: Health economic analyses have become important to healthcare systems worldwide. No studies have previously examined South America’s contribution in this area. OBJECTIVE: To survey the literature with the ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2006-05-15)A series of indazole N-oxide derivatives have been synthesized and their antichagasic and leishmanocidal properties studied. 3-Cyano-2-(4-iodophenyl)-2H-indazole N-1-oxide exhibited interesting antichagasic activity on the ...
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(ELSEVIER SCIENCE BV, 2006-05-30)The electronic structure and the spectroscopic properties of [M(CN)(2)](n)(-n), (M = Au(I), Ag(I); n = 1-3) were studied using density functional theory (DFT) at the B3LYP level. The absorption spectrums in these complexes ...
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(SOCIEDAD CHILENA DE QUIMICA, 2006-06)Mixed complexes of animosugars and 1,10-phenanthroline (phen) with cobalt(III), with the composition Co(III)(phen)(2)sugar, disproportionate in aqueous solution in approximately one month, giving non ionic tris-aminosugar ...
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(SOCIEDAD CHILENA DE QUIMICA, 2006-06)The synthesis of a series of new benzimidazo[1,2-c]quinazolines starting from 2-nitrobenzaldehyde and o-phenylendiamine is described. The structure elucidation of the products is based on detailed NMR analysis of experiments ...
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(ELSEVIER, 2006-06)A standard aqueous extract of Mangifera indica L., used in Cuba as antioxidant under the brand name VIMAN (R), was tested in vivo for its anti-inflammatory activity, using commonly accepted assays. The standard extract of ...