Browsing by Issue Date Artículos de revistas
Now showing items 401-420 of 2801
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(International Union of Crystallography, 1995)The CoII atom in the title complex. [CoBr2(C19H28N2O-Si)], has a tetrahedral environment and is coordinated to bis(o-dimethylaminomethylphenyl)methylsilanol in a bidenate fashion and to two Br anions
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(Sociedad Agronómica de Chile, 1995)Recientes estudios muestran que el bromuro de metilo es una sustancia potencialmente muy destructora de la capa de ozono, pues el radical bromo es 50 veces mas destructivo que el radical cloro. Como producto agroquímico ...
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(Elsevier Science ltd., 1995)Bioactivity guided fractionation of the dichloromethane extract from Psoralea glandulosa yielded the isolation of a diasteromeric mixture of cyclobakuchiols A and B as possible anti-inflammatory active compounds.
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(International Union of Crystallography, 1995)The syntheses and solid-state structures of two stilbene carbamates, 4-[2-(4-nitrophenyl)]phenylcarbamic acid ethyl ester, C17H16N2O4,(2), are described. The crystallization from tetrahydrofuran solutions occurs in the ...
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(Sociedad Chilena de Química, 1995)Se desarrolla un método automático de análisis por inyección en flujo (FIA) para la determinación simultánea de hierro y titanio en mezclas. El método se basa en el diseño de una configuración FIA que incluye la reducción ...
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(Sociedad Chilena de Química, 1995)Examination of 1H chemical shifts of a complex of D-glucosamine with bis-phenanthroline cobalt(III)shows that the dominant ∆-complex is formed from α-D-glucosamine. A molecular mechanics simulation of the structure of ...
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(Universita degli Studi di Pisa, Istituto di Chimica Agraria, 1995)El riego con aguas servidas no tratadas, el depósito de lodos provenientes de plantas de tratamiento de aguas, el relleno sanitario y también el uso de ciertos fertilizantes, pueden contribuir a modificar la forma y cantidad ...
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(GORDON BREACH SCI PUBL LTD, 1995)In this contribution, magnetic investigations on materials, which essentially combine mesogenic and polymeric properties, were presented. In the glassy and the smectic phase of a copper(II) containing polymer we observed ...
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(Elsevier, 1995)The cyclic voltammetric (CV) behaviour of nifurtimox was studied. The addition of aprotic solvent (DMF) to nifurtimox in an aqueous citrate buffer system was examined. Qualitatively this results in separation of the initial ...
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(1995)Homalaspis plana is a crab found in the Pacific Ocean coasts from Guayaquil (Ecuador) all the way down to the Strait of Magellan, including all of the Chilean coast. This crustacean is an important resource because it ...
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(1995)Bromination of 2,4,6-tri-O-benzoyl-3-deoxy-d-erytro-hex-2-enono-1,5-lactone (1) took place diastereoselectively to afford a single product: 2,4,6-tri-O-benzoyl-2,3-dibromo-3-deoxy-d-altrono-1,5-lactone (2). The configuration ...
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(1995)Electrochemical reduction of Ketanserin was studied at different pH and concentrations using polarography and cyclic voltammetry. Ketanserin exhibits two differential pulse polarographic peaks at the dropping mercury ...
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(1995)A simple, sensitive and selective first derivative spectrophotometric method has been developed for the determination of copper and iron in mixtures. The method is based on the recovery of the analytes, by liquid-liquid ...
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(1995)This work reports a comparative study of the catalytic behaviour for a series of metallocenes derived from Ti, Zr, Hf and Nb, which after activation with methylaluminoxane can polymerize ethylene. Results show that the Zr ...
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(1995)The catalytic activity of Ru3(CO)9 L3 (L = arylphosphine) in the WGSR and in the reduction of nitro derivatives to amines is studied. The same complex is supported in polystyrene‐divinylbenzene copolymer (PSDVB) and the ...
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(1995)The metabolites that mediate coronary reactive hyperemia have not been definitely identified. Although adenosine and endothelium derived substances seem to be involved, their relative contributions have not been defined ...
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(1995)In this study, we tested the adhesion-promoting role of major intrinsic protein from both normal human (cadaver) and senile cataractous lenses. Junctional membrane solubilized proteins and pure major intrinsic protein ...
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(1995)The objectives of this work were to establish the utility of chitosan of Chilean production, as an excipient suitable for producing a prolonged-release hydrophilic matrix, and to compare two matrix systems, one with chitosan ...
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(1995)Phosphoenolpyruvate carboxykinase (PEPCK) from the adductor muscle of Perumytilus purpuratus was purified to homogeneity, as determined by SDS-polyacrylamide gel electrophoresis (PAGE). The purification consisted of a ...
