Facultad de Ciencias Químicas y Farmacéuticas: Recent submissions
Now showing items 4121-4140 of 5062
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(SOCIEDAD CHILENA DE QUIMICA, 2004-12)The presence of high concentrations of arsenic and copper was determined in most of the environmental matrixes under study (river water, river sediments, and soils), which suggests a real impact of the copper mining activity ...
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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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(JOHN WILEY & SONS INC, 1997)A simple design of a polarographic flow-through cell is proposed in which a conventional dropping mercury electrode (DME) is used as working electrode, and a mercury pool and a platinum wire are used as the reference and ...
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(MUNKSGAARD INT PUBL LTD, 1996-06-15)The title complex, [CuBr2(C12H11N3)], is a monomer and the environment around the Cu2+ ion is that of a square pyramid, with one Br- ion occupying the apical site and the other Br- ion at a basal position.
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(MUNKSGAARD INT PUBL LTD, 1994-12-15)The crystal structure of [CUCl2(C12H12N2)] is reported. The complex is monomeric, with the Cu atom coordinated to two N atoms and two Cl- ions. The compound displays simple paramagnetic behaviour.
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(AMER GEOPHYSICAL UNION, 1997-01-20)Current understanding of the long-term ozone trends is described. Of particular concern is an assessment of the quality of the available measurements, both ground and satellite based. Trends in total ozone have been ...
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(KLUWER ACADEMIC PUBL, 1993-01)Santiago is a city of over 4.5 million inhabitants and about 415000 motor vehicles using leaded gasoline. Twenty-four-hour samples were taken of total and fractionated particulate matter using a low-volume system and two ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 1995-07)This is a first-approach study tending to correlate solar radiation and temperature with total particulate matter in Santiago, Chile, a city heavily polluted by this contaminant. Experimental data for monthly average total ...
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(ELSEVIER SCIENCE BV, 1993-11-15)A continuous-flow sensor based on integrated separation and spectrophotometric detection was developed for the determination of sulphur dioxide at the ng ml-1 level by transient immobilization of the reaction product formed ...
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(TAYLOR & FRANCIS LTD, 1993)We present the synthesis and a description of the physical properties of several organic dyes containing stilbene as well as azomethine groups. The preparations of all compounds started from a common precursor, ...
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(GORDON BREACH SCI PUBL LTD, 1996)Structural investigations using X-ray diffraction on methacrylate and acrylate based polymers with different side-chain mesogenic units are presented. The measurements were carried out by means of diffractometers with one ...
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(HETERO CORPORATION, 1998-05)Reaction of 5-amino-3-methyl-1-phenylpyrazole (1a) and 5-amino-3-(4-chlorophenyl)-1H-pyrazole (1b) with dimedone (2) and p-susbstituted benzaldehydes 3 in ethanol, afforded in all cases tricyclic linear 4-aryl- ...
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(GUSTAV FISCHER VERLAG, 1993-04)Antibodies raised against Trichoderma harzianum conidia prevented accumulation of Phenylalanine ammonia-lyase (PAL, E.C. 4.3.1.5.) in Citrus. The observed effect of the antibodies is produced by a delay in the formation ...
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(GUSTAV FISCHER VERLAG, 1997-05)A light-dependent bleaching of plastids was induced in lemon seedlings through cultivation in the presence of the herbicide Norfluorazon (NFZ). Also, etiolated seedlings were obtained by cultivation under continuous dark ...
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(ELSEVIER SCI LTD, 2000-10-20)The Delta-[Co(III)bis(phenanthroline)(sucrose)](3+) complex forms with little perturbation of the sucrose conformation, and complexation by HO-2(g) and HO-1(f).
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(GEORG THIEME VERLAG KG, 2003-12-18)The synthesis and characterization of a series of 4-nitrosophenyl-1.4-dihydropyridines derived from the respective nitro compounds of pharmacological interest is described. The complete synthetic pathway is based on the ...
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(ELSEVIER SCI LTD, THE BOULEVARD, 2001-07-12)Sucrose forms a dicationic complex with cobalt(III)bis(phenanthroline) which can be isolated as the sparingly water-soluble triiodide salt or the water-soluble chloride. The circular dichroism (CD) spectrum demonstrates ...
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(SOC STUDY REPRODUCTION, 2003-06)We studied the effects of a chronic intermittent cold stress regime on sympathetic nerve activation and ovarian physiology. This paradigm (4degreesC for 3 h/day, Monday-Friday, for 3 or 4 wk) does not affect basal plasma ...
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(MOSBY-ELSEVIER, 2011-05)Background The small guanosine triphosphatase Rho and its target Rho-kinase have significant roles in experimental remodeling and ventricular dysfunction, but no data are available on Rho-kinase activation in patients with ...
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(Universidad de Chile, 1983)
