Browsing by Issue Date Artículos de revistas
Now showing items 461-480 of 2801
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(1996)In this work, we report on the isolation and identification of the sesquiterpene 6-Oxo-germacra-1(10)E,4(15)-diene (1). This compound was isolated for the first time from a Chilean Baccharis, B. Sphacrocephala.
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(1996)The reactivity of the electrochemically generated nitro radical anion from nicardipine, nitrendipine and nimodipine, all nitro aryl 1,4-dihydropyridine derivative, with relevant thiols, was quantitatively assessed by cyclic ...
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(Elsevier B.V., 1996)Molecular characterisation of a lytic thermoactive β-1,3-glucanase from Oerskovia xanthineolytica LL-G109 has been performed. A molecular mass of 27 195.6 ± 1.3 Da and an isoelectric point of 4.85 were determined by ...
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(1996)The azomethin ylide of the 2-p-methoxyphenyl-4-phenyl-2-oxazolin-5-one underwent 1,3-dipolar cycloaddition to both tautomers of the 1-nitroso-2-naphthol. The reaction yields two naphthoxazoles: 2-phenylnaphtho[1,2-d]oxazole, ...
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(Elsevier Ltd, 1996)The preparation and spectroscopic properties of mononuclear cationic complexes of rhodium(I) coordinated to the diolefin 2,5-norbornadiene (NBD) and to the heterocyclic nitrogen ligands 6,7-dihydrodipyrido-[2,3-b:3′,2′-j ...
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(1996)Tire antipyretic and antiinflammatory properties of a new sesquiterpene, spartidienedione, isolated from Psila spartioides (Asteraceae) were evaluated in rabbits and guinea pigs. At the dose of 25 mg/kg, this substance ...
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(Society for the Study of Reproduction, 1996)The mammalian testis is innervated by extrinsic catecholaminergic nerves and responds to catecholamines with steroid secretion. Although the primate testis has also been shown to be innervated, potential differences in the ...
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(Elsevier Ireland Ltd, 1996)Progressive spastic paraparesis (PSP) is a demyelinating disease of the central nervous system. We studied the ability of the cerebrospinal fluid (CSF) of patients to induce alterations in rat peroneal nerves, and to modify ...
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(1996)Body Fe homeostasis is maintained through the regulation of Fe absorption by the intestinal epithelia. Working under the hypothesis that the intracellular concentration of Fe is instrumental in the control of its transepithelial ...
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(1996)The result obtained from different studies of the chronopharmacokinetics of some controlled-release tablets of theophylline are variable, since some authors report differences while others do not. At our laboratory we have ...
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(Elsevier Ltd, 1996)A process of recovery of copper from acid leach residual solution with 5-dodecylsalicylaldoxime dissolved in n-hexane was carried out at 30°C in a countercurrent tubular membrane extractor using a hollow fiber as solid ...
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(1996)The aim of the present study was to differentiate two modalities of intrinsic time scales : i- the geometric or Euclidean modality, which is based on the constant speed of mass transport or of wave transmission in cylindrical ...
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(1996)The transport of copper from EI Teniente's mine waters by solvent extraction in a membrane extractor using a hollow fiber as solid support as solid support has been studied. LIX-860, a salicylaldoxime was used as carrier. ...
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(Wiley-VCH Verlag, 1996)Grafting of polypropylene was carried out in both boiling xylene and decalin as solvent medium with itaconic acid (2-methylenesuccinic acid) as functional polar monomer using 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane ...
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(Elsevier Ltd, 1996)The title compound [Cu2C19H20N6O7Cl](2) is a copper(II) complex, in which each bicationic moiety is bridged by two pyrazolate ligands. In the centrosymmetric, tetrameric dications pairs of copper atoms, one square planar ...
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(1996)FT-IR and FT-Raman spectra of Caulerpin, a green algae pigment, have been recorded. An assignment of the observed bands is proposed on the basis of previously reported vibrational spectra of similar structures. Intensity ...
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(TAYLOR & FRANCIS LTD, 1996-01)A synthetic route has been developed to a new series of homo- and co-polysiloxanes with a terminal chiral 2-(S)-butyl fragment attached to the mesogenic biphenyl core via the ketone binding group, >C=O. The synthesis, ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 1996-01)ATP-diphosphohydrolase (or apyrase) hydrolyses nucleoside di- and triphosphates in the presence of millimolar concentration of divalent cations. It is insensitive towards sulfhydryl and aliphatic hydroxyl-selective reagents ...
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(AMER CHEMICAL SOC, 1996-04)A new series of liquid-crystalline Schiff base lanthanide compounds of the general formula (L''H)(2)L''MX(2) was prepared (L''H = H2n+1CnOC6H3(OH)CHNCmH2m+1; n = 7, 12; m = 14, 18; M = La, Tb, Dy, Er, Nd, Ho, Eu, Pr, and ...
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(ELSEVIER SCIENCE SA LAUSANNE, 1996-04-12)The activity of Pt, Pt + Pb and Pt + Ir deposits on Ti, for ethylene glycol (EG) oxidation, was studied in both 0.5 M H2SO4 and 0.5 M NaOH solutions. The metallic deposits were prepared by electrolysis at constant current ...