Artículos de revistas: Recent submissions
Now showing items 4961-4970 of 4970
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(SOCIEDAD CHILENA DE QUIMICA, 2005-12)We have studied the problem of what must be the minimal length of a nanotube with a given diameter to reasonably assert that its electronic properties can be extrapolated to longer structures. For this purpose the variation ...
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(BLACKWELL VERLAG GMBH, 2004-08)The ability to assess and respond to predation risk is a strong selective force. Detection of predators is carried out by one or more sensory modalities, but the use of chemoreception has significant advantages. This study ...
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(SOCIEDAD BIOLOGIA CHILE, 2004-03)In this work we analyzed the depth-distribution, at noon and midnight, of three zooplankton populations which are common inhabitants of lakes from central Chile and coexist in lake El Plateado. The species were Tumeodiaptomus ...
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(SOCIEDAD CHILENA DE QUIMICA, 2004-03)The conformational preferences of a series of 1-benzyl-1,2,3,4-tetrahydroisoquinolines (norlaudanosine and coclaurine analogues) were investigated with the aid of their H-1 NMR spectra and NOESY experiments, coupled with ...
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(SOCIEDAD CHILENA DE QUIMICA, 2004-09)Condensation of 4-methylthiobenzaldehyde with 1-nitropropane unexpectedly afforded separable amounts of both (E)- and (Z)-1-(4-methylthiophenyl)-2-nitrobutene. The H-1 and C-13 NMR spectra allowed the unequivocal assignment ...
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(ELSEVIER SCIENCE INC, 2004-02)We studied the physiological, biochemical and morphological responses of the omnivore sparrow Zonotrichia capensis, a small opportunistic passerine from Central Chile acclimated to high- and low-protein diets. After 4 weeks ...
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(SOCIEDAD CHILENA DE QUIMICA, 2004-12)A ZINDO/1 quantum-chemical structure-affinity relationship study is presented for the interaction of a group of 3-substituted morphinans with mu, delta and kappa opioid receptors. From this and previous work it is concluded ...
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Water economy of three Cinclodes (Furnariidae) species inhabiting marine and freshwater ecosystems (SOCIEDAD BIOLOGIA CHILE, 2004-06)Birds living in desert environments have been the preferred models for the study of physiological adaptations to water scarcity. Passerine birds living in marine coastal habitats face similar problems, yet physiological ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2004-10)The analgesic effects of (+)- and (-)-amphetamine (AMPH), (+/-)-p-methoxyamphetamine (MA), (+/-)-N-methyl-p-methoxyamphetamine (MMA) and (+/-)-N-ethyl-p-methoxyamphetamine (EMA) were compared using two different algesimetric ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2004-06-01)Oxidative stress has been demonstrated to produce modifications in several intracellular proteins that lead to alterations in their activities. Alzheimer's disease is related to an increase of oxidative stress markers, ...
