Browsing by Title Facultad de Ciencias
Now showing items 7968-7987 of 8166
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(2009)Determination of fecal steroid metabolites is a noninvasive technique that characterizes the physiological state of organisms without the physiological and psychological stress of handling. Although this technique has many ...
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(American Oil Chemists' Society, 1996)The induction periods for the peroxidation of various fish oils at 55-90°C were studied by the Rancimat test. The natural logarithms of the induction periods varied linearly with respect to temperature, with a mean coefficient ...
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(American Chemical Society, 1999)Molecular vibrations in ammonia (NH3) and hydrogen sulfide (H2S), and internal rotations in hydrogen peroxide (HOOH), hydrogen thioperoxide (HSOH), hydrogen persulfide (HSSH), and ethylene (C2H4) are studied using ab initio ...
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(Universidad de Chile., 2004)La plasticidad fenotipicas es la capacidad de los genotipos de responder a los cambios del ambiente a través de modificaciones en el fenotipo. Esta capacidad resulta adaptativa en ambientes heterogéneos si los genotipos ...
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(Universidad de Chile, 2004)
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(Universidad de Chile, 2005)
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(Universidad de Chile, 2008)En distintas áreas de investigación relacionado al ser humano, el movimiento sigue siendo de interés para muchos investigadores. Uno de los procesos que causan atención en el rendimiento humano es el fenómeno de fatiga ...
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(2004)En esta tesis se estudió el efecto de la migración temporal sobre la valoración de los servicios ecosistémicos, así como el papel del capital social en el cambio en el uso del suelo, teniendo como sistema de estudio ...
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(Universidad de Chile, 2016)Los métodos de valoración económica se han convertido en eficaces instrumentos para cuantificar las extemalidades positivas que producen los bienes y servicios ecosistémicos que proveen las áreas protegidas. En chile la ...
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(Universidad de Chile, 2008)
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(Universidad de Chile, 2015)
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(1989)We compare values of time obtained with linear utility functions used in LOGIT and HIERARCHICAL LOGIT specifications of a nine-mode passenger choice model estimated with disaggregate data from Santiago, Chile, and find ...
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(2007)We report the comparative structural-vibrational study of nanostructures of nanourchins, nanotubes, and nanorods of vanadium oxide. The tube walls comprise layers of vanadium oxide with the organic surfactant intercalated ...
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(2001)Infrared (middle and far) and Raman spectroscopy were used to study the adsorption of vanadylnaphthalocyanine and vanadylporphine tetraphenyl substituted macrocycles adsorbed onto metallic surfaces. The IR spectra of the ...
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(Universidad de Chile, 2019)
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(Springer, 2013)Rationale Neuronal nicotinic acetylcholine receptors (nAChRs) are pharmacological targets that have recently been implicated in the reinforcing effects ofmany drugs of abuse, including ethanol. Varenicline and cytisine ...
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(Universidad de Chile, 2011)
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(Universidad de Chile., 1979)
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(Universidad de Chile, 2016)
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(Universidad de Chile, 2011)