Browsing by Issue Date Artículos de revistas
Now showing items 781-800 of 2801
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(BENTHAM SCIENCE PUBL LTD, 2001-03)The structural elucidation of complex organic molecules relies heavily on the application of proton detected heteronuclear NMR. Among these techniques, the HMBC NMR experiment is probably the most useful 2D NMR method The ...
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(SOCIEDAD CHILENA DE QUIMICA, 2001-03)The effect of ageing the electrode on the mass response was studied by two approaches, namely: i) ageing the Pt deposits on the Au/Q substrate and ii) ageing the Au/Q substrate and then examining the response of the Pt ...
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(AMER OIL CHEMISTS SOC A O C S PRESS, 2001-04)The objective of this study was to manufacture a shortening using chemical interesterification (IT) of tallow-sunflower oil blends to replace fish oil in the present formulation, which is now in short supply in Chile. The ...
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(BLACKWELL SCIENCE LTD, 2001-04)The mechanism of copper (Cu) neurotoxicity was studied in the RCSN-3 neuronal dopaminergic cell line, derived from substantia nigra of an adult rat. The formation of a Cu-dopamine complex was accompanied by oxidation of ...
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(JOHN WILEY & SONS INC, 2001-04-15)Electronic structure aspects related to the semiconducting properties of monomers and polymers of phythalocyanoiron with bidentate bridging ligands, PcFe-L-2 and -[PcFe(L)](n), have been investigated from density functional ...
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(ENDOCRINE SOC, 2001-05)Gamma amino butyric acid (GABA) is the main inhibitory neuro-transmitter controlling LH-releasing hormone (LHRH) secretion in the mammalian hypothalamus. Whether alterations in GABA homeostasis within discrete regions of ...
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(SPRINGER-VERLAG, 2001-05)In all cell types, the maintenance of normal cell volume is an essential homeostatic function. Relatively little is known about the induction of apoptosis by hyperosmotic stress and its molecular mechanism in terminally ...
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(ELSEVIER SCI LTD, 2001-05)Polypropylene (pp) was functionalized in the melt phase by grafting with itaconic acid derivatives. 2,5-dimethyl-2,5-bis(tert-buthyl-peroxy) hexane (lupersol 101) was used as radical initiator. A Brabender Plasticorder was ...
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Voltammetric behavior and analytical applications of lomefloxacin, an antibacterial fluorquinolone (AOAC INTERNATIONAL, 2001-05)Lomefloxacin was reduced on a dropping mercury electrode, producing one or more peaks, depending on the pH of the aqueous medium. Coulometric measurements gave an experimental value of 1 electron for the main peak. ...
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(AMER SOC MICROBIOLOGY, 2001-05)We expressed cDNAs coding for manganese peroxidases (MnPs! from the basidiomycetes Ceriporiopsis subvermispora (MnP1) and Phanerochaete chrysosporium (H4) under control of the alpha -amylase promoter from. Aspergillus ...
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(ACADEMIC PRESS INC, 2001-05-25)The endogenous dopamine-derived neurotoxin salsolinol was found to decrease survival in the dopaminergic neuronal cell line RCSN-3, derived from adult rat substantia nigra in a concentration-dependent manner (208 muM ...
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(JOHN WILEY & SONS LTD, 2001-06)The novel heterocycles 1,11-dimethoxy-2-hydroxy-6-methyloxazolo[4,5-k]-5,6,6a,7-tetrahydro-4H-dibenzo [de,g]quinoline, 1,12-dimethoxy-2-hydroxy-6-methyl-9-phenyl-10H-oxazin[5,6-k]-5,6,6a,7-tetrahydro-4H-dibenzo ...
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(ELSEVIER SCIENCE INC, 2001-06)The fetal llama (Lama glama; a species adapted to live in chronic hypoxia in the highlands of the Andes) did not increase cerebral blood flow and reduce the brain oxygen uptake during hypoxemia. Although nitric oxide (NO) ...
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(SOCIEDAD CHILENA DE QUIMICA, 2001-06)Melatonin and Vitamin B6 can be oxidized at the glassy carbon electrode showing well-resolved anodic peaks by differential pulse voltammetry. Vitamin B6 shows an oxidation peak potential of about 650 mV vs Ag/AgCl in ammonia ...
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(SOCIEDAD CHILENA DE QUIMICA, 2001-06)The alkaline degradation of bleached kraft cellulose from Pinus Radiata and Eucalyptus Globulus in a 30% NaOH w/w solution over the time was studied. Both types of cellulose showed at the beginning, first hour, a fast drop ...
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(SOCIEDAD CHILENA DE QUIMICA, 2001-06)This communication describes the application of a hollow-fiber-type solid supported liquid membrane technique to the study of recovery and enrichment of molybdenum with Alamine 336 (a long chain tertiary amine) from acid ...
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(ELSEVIER SCIENCE BV, 2001-06-12)A selective dynamic method for the determination of sulphide in Liquid and solid samples based on the integration of hydrogen sulphide pervaporation and potentiometric monitoring of the sulphide in a laboratory-made module ...
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(ELSEVIER SCIENCE, 2001-06-15)A comprehensive study of the electrochemical reduction, in different electrolytic media, of two nitroso compounds, i.e. ortho- and meta-nitrosotoluene derivatives has been carried out. Furthermore, UV-vis and EPR spectroscopic ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2001-07)The polyamine, cadaverine, was detected in transformed root cultures of Brugmansia candida (syn. Datuira candida), a Solanaceae which produces the tropane alkaloids scopolamine and hyoscyamine. To the best of our knowledge, ...
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(WILEY-V C H VERLAG GMBH, 2001-07)Megazol (2-amino-5-(1-methyl-5-nitro-2-imidazolyl)-1,3,4-thiadiazol, CAS 19622-55-0), a highly active compound used against several of Trypanosoma cruzi, the causative agent of Chagas disease, is electrochemically studied ...
