Facultad de Ciencias Químicas y Farmacéuticas: Recent submissions
Now showing items 1861-1880 of 5114
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(2007)The oxydiacetate-bridged copper(II) complex [Cu(oda)(1,10-phen)] · 3H2O (oda = oxydiacetate dianion, 1,10-phen = 1,10-phenanthroline) has been characterized. The complex is dinuclear and centrosymmetric with each copper ...
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(Society of Biology of Chile, 2007)The antioxidant effect of 5-Aminosalicylic acid (5-ASA) on copper-mediated LDL oxidation was followed either by the emitted chemiluminiscence (CL) or by UV-vis spectroscopy. 5-ASA addition extends the lag phase in a ...
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(2007)We report a study of the nonmetal-metal transition of free-standing Pd N clusters (2≤N≤21) carried out through two different theoretical approaches that are extensively employed in electronic structure calculations: a ...
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(Academic Press Inc., 2007)It is known the interactions between the neural plate and epidermis generate neural crest (NC), but it is unknown why the NC develops only at the lateral border of the neural plate and not in the anterior fold. Using ...
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(2006)Three 2′-hydroxy chalcone derivatives were electrochemically reduced to the radical anion by a reversible one-electron transfer followed by a chemical dimerization reaction. Under suitable conditions of the medium, the ...
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(2007)One of the most negative environmental impacts that have had an explosive growth of Santiago's Metropolitan Region in the last decades, has been the pollution of water courses caused by effluents of waste waters. As a ...
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(2007)Nanoparticles can be made to respond resonantly to a time-varying electromagnetic field with advantageous results related to the transfer of energy from the exciting field to the nanoparticles. The surface of each particle ...
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(1985)We report results of Xα valence bond scattered wave (Xα-VB-SW) calculations for a variety of clusters that mimic the active sites in iron-sulfur proteins: Fe(SR)41-,2- (R = H, CH3), Fe2S2(SH)42-,3-, and Fe4S4(SCH3)42-,3-. ...
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(2007)Ferroelectric liquid crystals bearing a chiral pyrrolidine-type ring were prepared using (-)-(S)-malic acid as a building block. The compounds were characterized using the thermal analysis techniques of DSC and POM, ...
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(2006)The present study was designed to determine whether an association exists between HPA activity and cytokine production in major depression (MD). In 9 patients with MD and 11 control subjects of both sexes, all drug-free, ...
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(2007)This is a report on the separation and recovery of zinc ions from an acidic mine drainage using a stirred transfer cell-type emulsion liquid membrane contactor. Di(2-ethylhexyl) phosphoric acid was used as a highly selective ...
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(2004)The authors analyze under an ethical and legal perspective the consequences and anxieties generated by the human genome project in the population of four Latin American countries: Argentine, Chile, México and Perú, through ...
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(2007)In this review, we describe the contribution of peptides to the biomedical applications of metallic nanoparticles. We also discuss strategies for the preparation of peptide-nanoparticle conjugates and the synthesis of the ...
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(2007)The synthesis and phase characterization of two liquid crystalline methacrylic monomers based on the ω-hexyloxysalicylaldimine group with octyl and decyloxy chain substitutions is presented. The liquid crystalline materials ...
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(2007)Hydrogen bonding and crystal packing play major roles in determining the conformations of ethyl methyl 2-(triphenyl-phospho-ranyl-idene)malonate, Ph3P=C(CO2CH3)CO2CH2CH3 or C24H23O4P, (I), and dimethyl 2-(triphenyl-phosphor- ...
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(1988)The kinetics of the quenching of excited pyrene by several molecules in a variety of hydrocarbon solvents and in a diol are reported. The rate constants for reaction of the excited pyrene are, for the most part, ...
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(1999)The Δ-Λ isomerization of partially resolved [Ni(1,10-phen)2(S-aa)]+ systems, where S-aa is S-phenylalaninate, S-isoleucinate, S-leucinate, S-valinate, or S-alaninate, has been studied at 15,20 and 25°C in methanol as ...
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(2006)After the first description of TSP/HAM in 1985 and the elaboration of WHO's diagnostic criteria in 1988, the experience of the professionals in this field has increased so that a critical reappraisal of these diagnostic ...
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(1999)A study of matrix effects arising from river water samples using C18 SPE columns in the determination of 38 pesticides having different chemical properties is presented. Recoveries from river water samples of different ...
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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. ...
