Browsing by Title Facultad de Ciencias
Now showing items 5469-5488 of 8162
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(Neotropical Ornithological Society, 2017)The Chestnut-throated Huet-huet (Pteroptochus castaneus) is a poorly known species, endemic to Chile and Argentina. Here we describe observations made during eight days on a nest with two nestlings of the Chestnut-throated ...
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(Neotropical Ornithological Society, 2017)© The Neotropical Ornithological Society. The Chestnut-throated Huet-huet (Pteroptochus castaneus) is a poorly known species, endemic to Chile and Argentina. Here we describe observations made during eight days on a nest ...
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(Sociedade Brasileira Ornitologia, 2017)Although the Variable Hawk (Geranoaetus polyosoma) is a common and broadly distributed raptor in the Neotropics, its breeding ecology is almost unknown. Using video cameras, we collected data on the parental and nestling ...
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(2009)We report four opportunistic field observations of a species of Abrocoma in Polylepis besseri woodlands in Cochabamba Department, Bolivia. These observations sug-gest four significant aspects of Abrocoma sp. natural history: ...
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(Universisdad de Chile, 1995)Los canales de K+ constituyen el grupo mas diverso dentro de la familia de los canales iónicos. Ellos se activan en respuesta a cambios en el potencial de membrana, a segundos mensajeros como AMPc o Ca2+ y vía proteína ...
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(2001)A simple separation method to obtain gibberellin standards is described.This includes isolation of the lactonic gibberellins GAg, GA4, GAy and GAgfrom Gibberella fujikuroi cultures by Chromatographie procedures and their ...
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(2015)El uso de levadura para obtener bioalcoholes de "segunda generación" usados derivados de la industria agrícola y lechera, tiene un impacto positivo para el medio ambiente al reutilizar estos desechos.Sin embargo, la ...
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(Universidad de Chile, 2015)
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(Universidad de Chile., 2005)El fósforo (P) es un nutriente esencial para las plantas, la mayoría de las cuales no poseen un sistema eficiente para obtenerlo en suelos con poca biodisponibilidad. Una de estas plantas es el trigo (Triticum aestivum), ...
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(Universidad de Chile, 2021)El fósforo (P) es un nutriente esencial para las plantas, la mayoría de las cuales no poseen un sistema eficiente para obtenerlo en suelos con poca biodisponibilidad. Una de estas plantas es el trigo (Triticum aestivum), ...
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(Universidad de Chile, 2013)La sorbitol deshidrogenasa (SDH) es la principal enzima involucrada en el metabolismo del sorbitol en especies de la familia de las rosáceas, tales como manzanos o duraznos. Durante la maduración de los frutos, SDH ...
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(Springer Netherlands, 2017)© 2016, Springer Science+Business Media Dordrecht. Context: Interactions between landscape-scale processes and fine-grained habitat heterogeneity are usually invoked to explain species occupancy in fragmented landscapes. ...
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(1991)The secondary metabolise 2,4-dihydroxy-1,4-benzoxazin-3-one (DIBOA) was found in seedlings of wild Hordeum species, but not of cultivated barley (Hordeum vulgare). DIBOA levels correlated negatively with performance of the ...
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(SOC BIOLGIA CHILE, 2008)The secretion of proteinaceous toxins is a widespread characteristic in environmental and laboratory yeast isolates. a phenomenon called "killer system". The killer phenotype (K+) call be encoded by extrachromosomal genetic ...
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(European Association for Aquatic Mammals, 2017)
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(Elsevier Ltd, 2015)© 2014 Elsevier Ltd. Levels, congener profiles of PCDD/Fs, DL-PCBs and human exposure for these xenobiotics never have been reported in Chile. For that purpose 102 raw cow milk samples were collected from seven different ...
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(Elsevier B.V., 2011)Non-relativistic DFT (PW91, PBE, PB86) geometry optimizations followed by relativistic ZORA single point energy calculations on the neutral hexafluoride complexes of the series of actinides U, Np, Pu, Am, Cm, Bk, Cf, Es, ...
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(Elsevier, 2011-04-29)Non-relativistic DFT (PW91, PBE, PB86) geometry optimizations followed by relativistic ZORA single point energy calculations on the neutral hexafluoride complexes of the series of actinides U, Np, Pu, Am, Cm, Bk, Cf, Es, ...
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(Oxford University Press, 2016-04)A growing body of evidence showing that individuals of some social species live in non-kin groups suggests kin selection is not required in all species for sociality to evolve. Here, we investigate 2 populations of Octodon ...
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(1999)Olfactory chemotransduction involves a signaling cascade. In addition to triggering transduction, odors suppress ion conductances. By stimulating with brief odorant pulses, we observed a current associated with odor-induced ...