Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 13793-13812 of 20469
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(Ediciones de la Universidad de Chile, 1956)
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(ELSEVIER, 2010)We characterize inverse limits of nilsystems in topological dynamics, via a structure theorem for topological dynamical systems that is an analog of the structure theorem for measure preserving systems. We provide two ...
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(IOP Publishing, 2020)We present evidence for localized deviations from Keplerian rotation, i.e., velocity "kinks," in 8 of the 18 circumstellar disks observed by the DSHARP program: DoAr 25, Elias 2-27, GW Lup, HD 143006, HD 163296, IM Lup, ...
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(Universidad de Chile, 2017)El presente estudio tiene por objeto identificar características de la niñez y adolescencia inmigrante en Chile, a fin de aportar elementos al diseño de una política pública enfocada en esta temática. La investigación busca ...
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(Mineralogical Society of America, 2018)The nitrate deposits of the Atacama Desert are unique when one considers that in most surface environments nitrate is produced or consumed by biological processes and is easily washed away by rain. Nitrate deposits have ...
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Nitrite reduction on a multimetallic porphyrin/polyoxotungstate layer-by-layer modified electrodes (Elsevier, 2016)Electro and photoelectrochemical reduction of nitrite in aqueous solution was studied using a multielectrocatalysts modified ITO electrode. ITO modification was carried out using the layer-by-layer (LBL) method, where ...
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(Nature Publishing Group, 2019)Heart failure with preserved ejection fraction (HFpEF) is a common syndrome with high morbidity and mortality for which there are no evidence-based therapies. Here we report that concomitant metabolic and hypertensive ...
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(Universidad de ChilePrograma Cybertesis, 2007)
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(Universidad de Chile, 2015)La presente investigación se inserta en el marco de los programas de Fondos Concursables para las Organizaciones Sociales, estos son un mecanismo de vinculación entre el Estado y la Sociedad Civil, que financia diversos ...
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(Universidad de Chile, 2015)A nivel mundial existe un creciente aumento en la penetración de energías renovables no convencionales, específicamente la energía eólica que representa un 50,9% de la energía producida por este tipo de fuentes a nivel ...
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(2002)The products obtained with the system {[(ArN=C(Me))2C5H3N]FeCl2}/MAO (Ar = 2-C6H4(Et)) (1) and the ones obtained by the use of 1 in conjunction with Me2SiInd2ZrCl2/MAO (2) or EtInd2ZrCl2/MAO (3) were completely characterized ...
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(Oxford University Press, 2016)We study the stellar properties of 44 face-on spiral galaxies from the Calar Alto Legacy Integral Field Area survey via full spectrum fitting techniques. We compare the age profiles with the surface brightness distribution ...
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(ESO, 2014)Context. The recent discovery of three giant planets orbiting the extremely metal-poor stars HIP 11952 and HIP 13044 have challenged theoretical predictions of the core-accretion model. According to this, the metal content ...
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(UNIV CHICAGO PRESS, 1999-11-01)Zehavi et al. have suggested that the Hubble flow within 70 h(-1) Mpc may be accelerated by the existence of a void centered on the Local Group. Its underdensity would be similar to 20%, which would result in a local Hubble ...
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(NATURE PUBLISHING GROUP, 2006-12-21)It is now accepted that long-duration gamma-ray bursts (GRBs) are produced during the collapse of a massive star(1,2). The standard 'collapsar' model(3) predicts that a broad-lined and luminous type Ic core-collapse supernova ...
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(Elsevier Ltd, 2019)Bioceramic nanoparticles have many potential applications within the biomedical device industry. However, these applications demand a precise control of their sizes, shapes and morphology which play a main role in most ...
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(Universidad de Chile, 2011)En Chile la minería es la principal industria, generando grandes recursos y está en constante crecimiento. En coordinación con este desarrollo, la seguridad tanto para equipos y personas debe mantener la normativa, que ...
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(Iop Publishing LTD, 2018-06)A giant star-forming region in a metal-poor dwarf galaxy has been observed in optical lines with the 10 m Gran Telescopio Canarias (GTC) and in the emission line of CO(1-0) with the Northern Extended Millimeter Array (NOEMA) ...
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(Elsevier, 2020)Out of equilibrium systems are characterized by exhibiting the coexistence of domains with complex spatiotemporal dynamics. Here, we investigate experimentally the noise-induced domain wall propagation on a one-dimensional ...
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(Universidad de Chile, 2013)Esta tesis consiste de cinco partes. En la primera parte se considera el problema de Dirichlet lineal y no lineal con una difusi\'on no local regional definido implicitamente por {\small \begin{equation}\label{Aeq03} ...
