Browsing by Title
Now showing items 43527-43546 of 91696
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(Nature Publishing Group, 1993)Childhood acute lymphoblastic leukaemia (ALL) T and B precursor subtypes have been identified by standardised immunophenotyping in different geographic and ethnic settings. Comparison of the relative frequencies and estimated ...
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(Elsevier, 2015)Objective: To describe the distribution of alcohol-attributable mortality (AAM) at the local level (345 municipalities) in Chile, including fully and partially attributable causes in 2009. Methods: AAM was estimated ...
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(ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD, 2006-06)We assessed the geographic distribution of Tillandsia lomas in northern Chile, from Arica (18 degrees 20'S) to the Loa river (21 degrees 25'S) and discussed the factors that might potentially underlie the observed patterns. ...
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(WILEY-BLACKWELL, 2016)Orestias ascotanensis is a killifish endemic to the Ascotan salt pan in the Chilean Altiplano, where it inhabits 12 springs with different degrees of isolation. This species is a suitable model for studying the effect of ...
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(Public Library Science, 2020)Many freshwater ecosystems worldwide, and particularly Mediterranean ones, show increasing levels of salinity. These changes in water conditions could affect abundance and distribution of inhabiting species as well as the ...
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(BLACKWELL, 2008-05)The movement of materials and organisms between ecosystems is a common process in nature. In the present study we investigate the hypothesis that the movement of consumers between ecosystems depends not only on the ...
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(Springer-Verlag, 1965)Drosophila gasiciBrncic 1957, is a neotropical species found in several parts of the Andes Mountain System. By means of the analysis of their external characteristics, chromosomes and hybridization test they have been ...
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(Elsevier, 2017)The complex orogenic history and structure of Southern South America, coupled with Pleistocene glacial cycles, have generated paleoclimatic and environmental changes that influenced the spatial distribution and genetic ...
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(University of Chicago, 2020)Amphibian locomotor capacity is strongly linked to temperature and hydration. However, organisms in nature experience covariation of multiple environmental factors, and thus to better understand the effects of thermal and ...
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(Universidad de Chile, 2013)En la presente investigación se pretenden analizar los hitos y huellas territoriales que los discursos del Desarrollo económico han dibujado en la conurbación Concepción- Talcahuano desde 1950 al 2011. Ello con la finalidad ...
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(Universidad de Chile, 2022)A la luz del desarrollo tecnológico actual y la necesidad de ingeniar nuevas maneras de acreditar la comisión de delitos y la participación de los sospechosos en estos, el siguiente trabajo tiene por finalidad analizar ...
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(Peerj INC, 2018)Chile is the leading producer of copper worldwide and its richest mineral deposits are found in the Antofagasta Region of northern Chile. Mining activities have significantly increased income and employment in the region; ...
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(Universidad de Chile, 2017)Esta tesis está inspirada por dos tareas del proceso de evaluación de recursos en proyectos mineros: la caracterización y el modelamiento geológicos. Ambas áreas están directamente relacionadas con la percepción visual y, ...
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(Elsevier, 2018-07)Paniri volcano, in northern Chile, belongs to a volcanic chain trending across the main orientation of the Central Andean volcanic province. Field work mapping, stratigraphic sequences, and one new Ar-40/Ar-39 and eleven ...
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(Springer, 2020)A weighted compressed sensing (WCS) algorithm is proposed for the problem of channelizetl facies reconstruction from pixel-based measurements. This strategy integrates information from: (i) image structure in a transform ...
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(MDPI AG, 2018)This paper proposes a geostatistical approach for geological modelling and for validating an interpreted geological model, by identifying the areas of an ore deposit with a high probability of being misinterpreted, based ...
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(Oxford University Press and Royal Astronomical Society, 2013)We present ultraviolet, optical and near-infrared observations of the interacting transient SN 2009ip, covering the period from the start of the outburst in 2012 October until the end of the 2012 observing season. The ...
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(Universidad de Chile, 2007)La Zona de Alteración Hidrotermal de Domeyko se ubica inmediatamente al este del pueblo homónimo, a unos 40 Km. al sur de la ciudad de Vallenar en la Región de Atacama del árido norte de Chile. La zona de alteración está ...
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(Universidad de Chile, 2015)Este trabajo tiene su desarrollo en La Unión Inferior, un sector del depósito Río Blanco caracterizado por poseer una concentración de cobre promedio >1,5%, bastante superior al de la mina subterránea (0,9%). Por este ...
