Browsing by Title Facultad de Ciencias
Now showing items 6700-6719 of 8178
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(Universisdad de Chile, 2004)Rotavirus, miembro de la familia Reoviridae, es la principal causa de gastroenteritis severa en infantes y lactantes en el mundo. La particular viral infectiva o virion esta constituida por tres cubiertas proteicas ...
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(Universidad de Chile, 2012)
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(Universidad de Chile, 2018)El sistema nervioso y el sistema inmune se encuentran íntimamente relacionados comunicándose bidireccionalmente mediante citoquinas, neuropéptidos y neurotransmisores, como la dopamina. Este neurotransmisor ejerce su ...
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(Universidad de Chile, 2014)El presente estudio evaluó experimentalmente los efectos combinados de un factor antropogénico (pesticida) y un factor natural (depredación). Destacando la importancia de la depredación selectiva en la evaluación del impacto ...
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(Universisdad de Chile, 2012)El establecimiento de la polaridad es un proceso clave en el desarrollo neuronal, que a través de la generación de dos compartimentos, el somatodendritico y el axonal, permite a las neuronas insertarse en circuitos y ...
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(Universisdad de Chile, 2007)La bioinformatica, sincretismo científico-técnico entre la biología y las tecnologías de la información, cobra cada vez mas relevancia dentro las ciencias biológicas debido al gran aumento en la capacidad tecnológica ...
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(Universidad de Chile, 2002)Las celulas del epitelio duodenal, son el principal sitio de absorcion de hierro (Fe) dietario. El proceso de captacion de Fe por estas celulas es regulado por la concentracion intracelular de Fe y por el contenido de ...
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(Universidad de Chile, 2019)Anualmente parte de la población de ballenas jorobadas del Pacifico suroriental se alimenta en el estrecho de Magallanes, presentando una dieta compuesta por zooplancton y sardinas. En este estudio se examinó la ecología ...
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(1985)The content of the simple indole alkaloid gramine in barley leaves decreased with age. Conversely, susceptibility to aphids increased in older plants. Population growth rate of the greenbug Schizaphis graminum correlated ...
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(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2004-08-01)Different types of placodes originate at the anterior border of the neural plate but it is still an unresolved question whether individual placodes arise as distinct ectodermal specializations in situ or whether all or a ...
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(ELSEVIER SCIENCE, 2005-07)It has been suggested that complementary proteins are involved in autoimmunity through a network involving idiotype-anti-idiotype reactions termed 'autoantigen complementarity'. We propose that complementary proteins, which ...
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(ELSEVIER SCIENCE BV, 2005-04-25)In a previous work, chemical modification of Cys-238 of Escherichia coli Pfk-2 raised concerns on the importance of the dimeric state of Pfk-2 for enzyme activity, whereas modification of Cys-295 impaired the enzymatic ...
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(Universidad de Chile, 2011)
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(Universidad de Chile, 2014)
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Role of glucose-1-phosphate and glucose-6-phosphate in glycogen synthesis by pigeon liver homogenate (1976)1. 1. Glucose-1-C14, G-6-P-1-C14 and G-1-P-l-C14 have been incubated with a pigeon liver homogenate. Incorporation of C14 into glycogen and CO2 were measured. 2. 2. The relative incorporation of C14 from G-6-P-1-C14 and ...
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(1980)Hydroxamic acid concentration in Gramineae, both natural and incorporated, correlates with resistance to the aphid Metopolophium dirhodum. 2,4-Dihydroxy-7-methoxy-2H-1,4-benzoxazin-3(4H)-one, a hydroxamic acid isolated ...
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(1996)Wheats and triticales resistant to Russian wheat aphid (RWA). Diuraphis noxia, contained medium to very high concentrations of hydroxamic acids. Feeding behaviour and performance of RWA in wheat seedlings differing in ...
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(ELSEVIER SCIENCE BV, 2008-06)Inducible defenses are a form of phenotypic plasticity that potentially modify direct interactions between various members of an ecological community, generating traitmediated indirect effects. In this work, the hypothesis ...
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(1986)Enzyme preparations with variable phospholipid contents were obtained by removing lipids from sarcoplasmic reticulum with deoxycholate. Preparations containing from 90 to 37 phospholipids per enzyme showed normal values ...
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(Springer, 2015)Human ribokinase (RK) is a member of the ribokinase family, and is the first enzyme responsible for D-ribose metabolism, since D-ribose must first be converted into D-ribose-5-phosphate to be further metabolized and ...