Browsing by Title Artículos de revistas

Now showing items 7527-7543 of 7543

    • Yield of Echocardiography in the Evaluation of Cerebral Ischemic Events: A Single Center Cohort Study 
      Brunser, Alejandro M.; Ibañez-Arenas, Rodrigo; Larico, Martin; Mansilla, Eloy; Almeida, Juan; Olavarría, Verónica V.; Muñoz, Paula; Rojo, Alexis; Cavada, Gabriel; Lavados Germain, Pablo Manuel (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 ...
    • The young open cluster NGC 2129 
      Carraro, Giovanni; Chaboyer, Brian; Perencevich, James (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 ...
    • Young stars in the periphery of the Large Magellanic Cloud 
      Moni Bidin, C.; Casetti-Dinescu, D. I.; Girard, T. M.; Zhang, L.; Méndez Bussard, René Alejandro; Vieira, K.; Korchagin, V. I.; van Altena, W. F. (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 ...
    • A Young White Dwarf with an Infrared Excess 
      Xu, S.; Jura, M.; Pantoja, B.; Klein, B.; Zuckerman, B.; Su, K. Y. L.; Meng, H. Y. A. (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 ...
    • Z(d) group shifts and Bernoulli factors 
      Boyle, Mike; Schraudner, Michael (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 ...
    • “Zig-Zag paper city”: Chilenizing the North border: ARICA 1910-1930 “Ciudad de papel zig-zag”: Chilenizando ... 
      Martínez, Elizabeth Ferreira; Bustamante, Gilberto Aranda (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 ...
    • Zig-zag wall lattice in a nematic liquid crystal with an in-plane switching configuration 
      Andrade Silva, I.; Clerc Gavilán, Marcel; Odent, Vincent (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 ...
    • Zinc oxide nanoparticles with incorporated silver: Structural, morphological, optical and vibrational properties 
      Mosquera Vargas, Edgar; Rojas Michea, Carolina; Morel, Mauricio; Gracia Caroca, Francisco; Fuenzalida Escobar, Víctor; Zárate, Ramón A. (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 ...
    • Zinc Oxide Nanostructures by Solvothermal Synthesis 
      Segovia, M.; Sotomayor Torres, Clivia; González Moraga, Guillermo; Benavente Espinosa, Eglantina (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., ...
    • Zircon inheritance from long-lived sources of Late Triassic post-orogenic plutons, High Andes, Central Chile ... 
      Molina, Pablo G.; Parada, Miguel A.; Ma, Changqian (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 ...
    • Zircon recycling and crystallization during formation of chromite- and Ni-arsenide ores in the subcontinental ... 
      González Jiménez, José; Cáceres Marchesi, Claudio; Griffin, William L.; Gervilla, Fernando; Belousova, Elena A.; Garrido, Carlos J.; Romero, Rurik; Talavera, Cristina; Leisen, Mathieu; O'Reilly, Suzanne Y.; Barra Pantoja, Luis Fernando; Martin, Laure (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 ...
    • ZnO/Ag/CdO nanocomposite for visible light-induced photocatalytic degradation of industrial textile effluents 
      Saravanan, R.; Mansoob Khan, Mohammad; Kumar Gupta, Vinod; Mosquera Vargas, Edgar; Gracía Caroca, Francisco; Narayanan, V.; Stephen, A. (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 ...
    • β-catenin aggregation in models of ALS motor neurons: GSK3β inhibition effect and neuronal differentiation 
      Pinto, Cristina; Medinas, Danilo B.; Fuentes Villalobos, Francisco; Maripillán, Jaime; Castro, Ariel F.; Martínez, Agustín D.; Osses, Nelson; Hetz Flores, Claudio; Henríquez, Juan P. (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 ...
    • δ-Generalized Labeled Multi-Bernoulli Simultaneous Localization and Mapping with an Optimal Kernel-Based ... 
      Moratuwage, Diluka; Adams, Martin; Inostroza, Felipe (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 ...
    • σ-Holes promote the concertedness in nucleophilic aromatic substitution reactions of nitroarenes 
      Gallardo-Fuentes, Sebastián; Ormazábal-Toledo, Rodrigo (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 ...
    • (ω, c) -Pseudo periodic functions, first order Cauchy problem and Lasota–Wazewska model with ergodic and ... 
      Alvarez, Edgardo; Castillo, Samuel; Pinto, Manuel (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 ...
    • (ω, c)-periodic functions and mild solutions to abstract fractional integro-differential equations 
      Álvarez, Edgardo; Gómez, Adrián; Pinto Jiménez, Manuel (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 ...