Browsing by Title Facultad de Ciencias
Now showing items 7953-7972 of 8192
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(Elsevier, 2020)Two hitherto unknown organometallic compounds with antitumor activity, [Ru(eta(6)-2-(1-propenyl)anisole)(en)(Cl)]PF6 (3) and [Ru(eta(6)-2-(1-propenyl)anisole)(en)(l)]PF6 (4), where en is ethylenediamine, were synthesized ...
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(John Wiley, 2013)
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(ELSEVIER, 2008-11)The use of genomics, proteomics, transcriptomics, metabolomics and other OMICs approaches together with bioinformatics tools allows a global picture of how a microbial cell operates in its community to be obtained. The ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2006-02-24)This study presents the outstanding chromatographic selectivity of a porous graphitic carbon support for the separation of four isomeric tropane alkaloids from the stem-bark of Schizanthus grahamii (Solanaceae). Capillary ...
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(Instituto de Investigaciones Agropecuarias, INIA, 2008-04)Accumulated chilling was estimated by applying three different models to the hourly autumn-winter temperature records from Santiago (33°34 S lat; 625 m.a.s.l.) and Vicuña (30°02´ S lat; 643 m.a.s.l.) for the years 2005 ...
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(BMJ, 2020)Objective We study the obesity transition by socioeconomic status (SES), gender and age within the Colombian urban population at the country, regional and department levels. Design The study is informed by cross-sectional ...
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(Elsevier, 2019)Peatlands are key reservoirs of belowground carbon (C) and their monitoring is important to assess the rapid changes in the C cycle caused by climate change and direct anthropogenic impacts. Frequently, information of ...
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(2006)The distribution and habitat use by carnivores can be assessed by studying their tracks or feces. If these methods are to be used confidently, they should not only unequivocally discriminate among species, but should ...
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(Hindawi, 2016)Within a woody plant species, environmental heterogeneity has the potential to influence the distribution of genetic variation among populations through several evolutionary processes. In some species, a relationship between ...
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(Taylor & Francis, 2015)The increased frequency and magnitude of natural disasters is producing a growing awareness of the need to incorporate mental well-being and resilience into policy and practice. The present research uses mental well-being ...
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(CAMBRIDGE UNIV PRESS, 2009-01-20)Studies of recruitment dynamics in meroplanktonic organisms are dependent on the correct identification of each ontogenic stage of each species. This is particularly difficult when studying the larval stages, which are ...
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(2013)It is widely recognized that macroecological patterns are not independent of the evolution of the lineages involved in generating these patterns. While many researchers have begun to evaluate the effect of ancestor-descendant ...
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(Universidad Técnica del Estado, 1972-07)Se describe el uso de brebajes preparados con tallos de Banisteriopsis y hojas de Psychotria por la tribu de los Shipibos y en la ciudad de [quitos. El análisis de una muestra de la especie de Banisteriopsis usada, ...
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(Universidad de Chile, 2003)Los compuestos organometál¡cos r1u1C5R.¡M(P1, P2)X (R= H, CHs; M= Fe, Ru; (Pr,Pz)=dppe; X= I, Cl) fueron preparados y sus reacc¡ones con tres tiofenos, Tiofeno (T), Benzotiofeno (BT) y Dibenzotiofeno (DBT), fueron ...
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(Universidad de Chile, 2019)
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(Universidad de Chile, 2018-10)El aumento en la aparición de microrganismos resistentes a los antibióticos es de gran preocupación en el ámbito de salud pública debido al aumento de la mortalidad y costos de tratamiento causado por las enfermedades que ...
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(Universisdad de Chile, 2002)El aparato de Giolgi es un organelo central en la síntesis de la pared celular primaria de planta, ya que es este compartimento donde se biosintetizar tanto hemicelulosa como pectina, los dos principales polisacáridos que ...
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(2018-09)TRPM4 es un canal catiónico no selectivo activado por Ca2+ intracelular, permeable a iones monovalentes tales como Na+ y K+. Se encuentra principalmente en los complejos de adhesiones focales (FAs) regulando la entrada de ...
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(2018-09)Los carnívoros poseen grandes rangos de distribución y una alta demanda de proteínas en su dieta, por lo que entran frecuentemente en conflicto con productores de ganado alrededor del mundo, ya que el ganado representa una ...
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(Universidad de Chile, 2022)La contaminación del aire es un área de interés mundial por su efecto nocivo tanto en la salud de las personas como en el medio ambiente. Los sensores de aire de bajo costo1 ayudan a determinar la concentración de contaminantes ...