Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 10473-10492 of 20545
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(International Union against Tubercul. and Lung Dis., 2019)BACKGROUND: Tuberculosis (TB) diagnosis in human immunodeficiency virus (HIV) positive persons is difficult, particularly in resource-limited settings. The relationship between TB culture status and mortality in HIV-positive ...
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(Universidad de Chile, 2014)El presente estudio se enmarcar en una crisis publica del sistema proteccional chileno, donde en el año 2013 se designa una Comisión Especial Investigadora de la Cámara de Diputado con el fin de analizar la efectividad del ...
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(Elsevier, 2017)In this paper, we discriminate the contribution of the different sediment sources into a river situated in the semiarid region of northern Chile, differentiating the ones driven by the paraglacial response from the ones ...
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(Elsevier, 2020)We obtained 49 new Be-10 ages that document the activity of the former Northern Antarctic Peninsula Ice Sheet, and subsequently the James Ross Island Ice Cap and nearby glaciers, from the end of the last glacial period ...
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(Frontiers Media, 2021)The causes underlying Holocene glacier fluctuations remain elusive, despite decades of research efforts. Cosmogenic nuclide dating has allowed systematic study and thus improved knowledge of glacier-climate dynamics ...
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(Iop Publishing LTD., 2018-05-20)We analyze the dust morphology of 29 transition disks (TDs) observed with Atacama Large (sub-)Millimeter Array (ALMA) at (sub-)millimeter emission. We perform the analysis in the visibility plane to characterize the total ...
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(Elsevier, 2010)We present homogeneous V, I CCD photometry of nine stellar fields in the two inner quadrants of the Galactic plane. The lines-of-view to most of these fields aim in the direction of the very inner Galaxy, where the ...
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(ROYAL SOC EDINBURGH, 2006)In this article we study the asymptotic behaviour of the eigenvalues of a family of nonlinear monotone elliptic operators of the form A(epsilon) = - div(a(epsilon) (x, del u)), which are sub-differentials of even, positively ...
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(1999)In this paper we study a simplified model of the behavior of a 3-D solid made from two elastic homogeneous materials separated by a rapidly oscillating interface. We study the asymptotic beha¨ior of the solution of such ...
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(SIAM PUBLICATIONS, 2008)We study the asymptotic behavior of a system modeling a composite material made of an elastic periodically perforated support, with period epsilon > 0, and a perfect gas placed in each of these perforations, as epsilon ...
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(1997-12)In this paper, the classical problem of homogenization of elliptic operators in arbitrary domains with periodically oscillating coe cients is considered. Using Bloch wave decomposition, a new proof of convergence is ...
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(Universidad de Chile, 2018)El presente trabajo de tesis tiene como objetivo general homologar las prácticas operacionales de los diversos grupos de trabajo y estandarizar los procesos en la planta concentradora de Minera Los Pelambres con el fin de ...
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(Oxford University Press, 2020)We present an approach to cumulant–moment relations and Wick polynomials based on extensive use of convolution products of linear functionals on a coalgebra. This allows, in particular, to understand the construction ...
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(Universidad de Chile, 2016)Los cambios continuos en el código fuente de un programa pueden inadvertidamente introducir una regresión de rendimiento en tiempo de ejecución. Dichas regresiones se refieren a situaciones donde el rendimiento de un ...
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(Universidad de Chile, 2012)La formación de etringita retardada (DEF) es un fenómeno expansivo que se origina en estructuras de hormigón sometidas a altos niveles de temperatura (>70°C) durante su etapa inicial de curado, esto puede ocurrir en las ...
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(EDP Sciences, 2017)Spatially resolved spectroscopy of the environments of explosive transients carries detailed information about the physical properties of the stellar population that gave rise to the explosion, and thus the progenitor ...
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(EDP SCIENCES, 2016)We report the discovery of two additional planetary companions to WASP-41 and WASP-47. WASP-41 c is a planet of minimum mass 3.18 +/-0.20 M-Jup and eccentricity 0.29 +/- 0.02, and it orbits in 421 +/- 2 days. WASP-47 c is ...
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(The American Astronomical Society, 2011-08-01)We report molecular line observations in the CO J = 3→2, 6→5, and 7→6 transitions, made using the Atacama Pathfinder Experiment Telescope, toward the massive and dense core IRAS 16562−3959. This core harbors a string of ...
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(Springer, 2013)The dynamic and reflective features of programming languages are powerful constructs that programmers often mention as extremely useful. However, the ability to modify a program at runtime can be both a boon—in terms of ...
