Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 20231-20250 of 20250
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(Universidad de Chile, 2023)
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(W.B. Saunders, 2019)© 2018Background: Echocardiography (ECO) is frequently used as a screening test in patients with acute ischemic brain disease. We aimed to evaluate the additional information and therapeutic impact resulting from ECO in ...
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(BLACKWELL, 2006-01-21)The first charge-coupled device UBV(RI)(C) photometric study in the area of the doubtful open cluster NGC 2129 is presented. Photometry of a field offset 15 arcmin northwards is also provided, to probe the Galactic disc ...
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(Oxford University, 2017)Despite their close proximity, the complex interplay between the two Magellanic Clouds, theMilky Way and the resulting tidal features, is still poorly understood. Recent studies haveshown that the Large Magellanic Cloud ...
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(IOP Publishing, 2015)Using observations of Spitzer/IRAC, we report the serendipitous discovery of excess infrared emission from a single white dwarf PG 0010+280. At a temperature of 27,220 K and a cooling age of 16 Myr, it is the hottest and ...
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(CAMBRIDGE UNIV PRESS, 2008-04)In this paper, a group shift is an expansive action of Z(d) on a compact metrizable zero-dimensional group by continuous automorphisms. All group shifts factor topologically onto equal-entropy Bernoulli shifts; abelian ...
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(Universidad de Chile, Facultad de Filosofia y Humanidades, Departamento de Literatura, 2019)The article analyzes the speech of the Zig-Zag magazine in relation to the city of Arica, as a collaborator in a propaganda policy of Chileanization, in the context in which Peru and Chile must prepare for the Treaty that ...
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(American Physical Society, 2014)Liquid crystals displays with tailoring electrodes exhibit complex spatiotemporal dynamics when a large voltage is applied. We report experimental observations of the appearance of a programmable zig-zag lattice using ...
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(Elsevier, 2015)Zinc oxide nanoparticles with different amounts of incorporated silver (ZnO:Ag; 0.6, 3, 6, and 9 at.% Ag) have been successfully synthesized by a simple sol gel method. The effect of Ag content on the properties of ZnO ...
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(Taylor & Francis, 2012)The synthesis, characterization, and properties of three types of one-dimensional zinc oxide nanostructures are described. They were obtained by solvothermal treatment of nanometric zinc oxide as zinc ion source (i.e., ...
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(Elsevier, 2020)A comprehensive understanding of the magmatic system evolution and petrogenetic environment is crucial for the correct interpretation of magmatic zircon age spectra. In the Central Andes, a protracted Late Paleozoic period ...
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(Elsevier, 2017)The ultramafic massifs of the Serrania de Ronda (namely Ronda, Ojen and Carratraca) are portions of Proterozoic (similar to 1.2-1.8 Ga) subcontinental lithospheric mantle (SCLM) affected by partial melting and infiltration ...
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(Elsevier, 2015)A ternary ZnO/Ag/CdO nanocomposite was synthesized using thermal decomposition method. The resulting nanocomposite was characterized by X-ray diffraction, field emission scanning electron microscopy, transmission electron ...
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(Universidad de Chile, 2014)El sector Los Bronces, perteneciente a la compañía minera Anglo American, se ubica en la franja metalogénica del Mio-Plioceno de Chile Central alojado en lado oriental del Batolito San Francisco a unos 65 km al noreste de ...
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(Academic Press Inc., 2019)Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease characterized by motor neuron death. A 20% of familial ALS cases are associated with mutations in the gene coding for superoxide dismutase 1 (SOD1). The ...
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(NLM (Medline), 2019)Under realistic environmental conditions, heuristic-based data association and map management routines often result in divergent map and trajectory estimates in robotic Simultaneous Localization And Mapping (SLAM). To ...
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(Springer, 2018)In this paper we prove a Law of Large Numbers for the number of δ-records in a sequence of random variables with an underlying trend. Our results generalizes results appeared in the literature for the i.i.d. case and for ...
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(Royal Society of Chemistry, 2019)The mechanism of the SNAr reactions between 1-halo-2,4-dinitrobenzenes and amines was revisited by means of DFT calculations. Remarkably and contrary to the traditional text-book perspective, the dehalogenation of ...
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(Springer International Publishing, 2019)In this paper we study a new class of functions, which we call (ω, c) -pseudo periodic functions. This collection includes pseudo periodic, pseudo anti-periodic, pseudo Bloch-periodic, and unbounded functions. We prove ...
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(ω, c)-periodic functions and mild solutions to abstract fractional integro-differential equations (Univ Szeged, 2018)In this paper we study a new class of functions, which we call (omega, c)-periodic functions. This collection includes periodic, anti-periodic, Bloch and unbounded functions. We prove that the set conformed by these functions ...
