Browsing by Title Facultad de Ciencias
Now showing items 7404-7423 of 8177
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(American Geophysical Union, 2014)The study of complexity in two aspects of the magnetic activity in the Sun-Earth system is presented. We compare the temporal evolution of the magnetic fluctuations in the Earth’s magnetosphere and the spatial distribution ...
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(Wiley-Blackwell, 2016)Small mammals use plant species for gathering food resources and for shelter. Preferences for certain plant species are related to nutritional restrictions and behavioural patterns, which could be altered in the presence ...
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(Springer Verlag, 2017)© 2016, Springer-Verlag Berlin Heidelberg.Several studies have suggested that penguins are undergoing a major restructuring of their feeding habits and distribution after drastic climatic changes in the Antarctic Peninsula ...
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(Elsevier, 2015)Chagas disease is a zoonosis caused by the protozoan parasite Trypanosome cruzi and transmitted by triatomine insects to several mammalian species acting as reservoir hosts. In the present study, we assess T. cruzi-prevalence ...
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(2002)Hydroxamic acids (Hx) contained in wheat are active mutagens which play an important role in the defence of the plant against aphids. Random amplified polymorphic DNA-polymerase chain reaction (RAPD-PCR) dominant markers ...
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(2010)In the present study, we compared Trypanosoma cruzi infection in four native mammals from a hyperendemic area of Chagas disease in Chile for two different periods to assess the occurrence of interannual variation (1999– 2000 ...
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(Elsevier, 2018-06)The most critical question for climate research is no longer about the problem, but about how to facilitate the transformative changes necessary to avoid catastrophic climate-induced change. Addressing this question, ...
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(RESILIENCE ALLIANCE, ACADIA UNIV, BIOLOGY DEPT, 2006-06)Although there is general agreement among conservation practitioners about the need for ( 1) social involvement on the part of scientists; ( 2) interdisciplinary approaches; ( 3) working on local, regional, and global ...
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(Universidad de Chile, 2008)En el presente documento se encuentran los primeros resultados y análisis de las mediciones de carbono orgánico (CO) y carbono elemental (CE) en la fracción fina del material particulado (MP 2,5). La base de datos ...
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(Universidad de Chile, 2021-03)El 64% de las viviendas en Chile posee animales de compañía, no obstante, no en todas se aplican las mismas medidas de cuidados para evitar problemas entre éstas y el entorno. Este estudio describe, mediante análisis ...
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(Elsevier, 2018)A molecular dynamics study of the effect of a single B2–CuZr precipitate on the mechanical properties of Cu50Zr50 metallic glass nanowires is presented. Four different samples are considered: three with a 2, 4 and 6 nm ...
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(2009-01)We describe the tensor products of two irreducible linear complex representations of the group G = GL(3, F q) in terms of induced representations by linear characters of maximal torii and also in terms of classical ...
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(Universidad de Chile, 1990)
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(Universidad de Chile, 1986)Basándonos en una idea debida a Hirsch y Nazenko desarrollamos un método perturbativo aplicable al grupo de renormalización para sistemas definidos en redes a temperatura cero
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(Universidad de Chile, 1971)
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(2016)Esta publicación-Ensayo se relaciona con la Teoría de la Conexión o Relación entre el Espacio de Polinomios y las Series Infinitas. Y se refiere específicamente al Cálculo de los límites superiores e inferiores para ...
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(Springer, 2015)Correlations among and identification of the source volcanoes for over 60 Late Glacial and Holocene tephras preserved in eight lacustrine sediment cores taken from small lakes near Coyhaique, Chile (46 degrees S), were ...
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(Universisdad de Chile, 2012)Filamentous temperature sensitive strain Z (Ftsz) es una proteína citosoIica bacteriana que forma un anillo en la mitad longitudinal de la célula durante la división celular. Este anillo se ensambla junta a otras 10 ...
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(Universidad de Chile., 1990)La termoregulacion conductual asociada al agrupamiento de pequeños mamíferos (TCA) puede ser una respuesta eficiente a las bajas temperaturas, con importantes consecuencias en el ahorro y asignación de energía. Entre las ...
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(Springer, 2018)Life in saline environments represents a major physiological challenge for birds, particularly for passerines that lack nasal salt glands and hence are forced to live in environments that do not contain salty resources. ...