Artículos de revistas: Recent submissions

Now showing items 1401-1420 of 4968

    • Monitoring Chilean native forest area: A pending challenge Monitoreo de la superficie de los bosques nativos ... 
      Miranda, Alejandro; Lara, Antonio; Altamirano, Adison; Zamorano-Elgueta, Carlos; Jaime Hernández, H.; González, Mauro E.; Pauchard, Aníbal; Promis Baeza, Álvaro (Universidad Austral de Chile, 2018)
      © 2018, Universidad Austral de Chile. All rights reserved. Forest monitoring is important for decision making of forest management and conservation. In Chile, the forest monitoring system was initiated in 1994, which has ...
    • Carbon consumption patterns of microbial communities associated with Peltigera lichens from a Chilean ... 
      Almendras, Katerin; Leiva, Diego; Carú Marambio, Margarita; Orlando, Julieta (MDPI AG, 2018)
      © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/ ...
    • Patterns and drivers of recent disturbances across the temperate forest biome 
      Sommerfeld, Andreas; Senf, Cornelius; Buma, Brian; D’Amato, Anthony W.; Després, Tiphaine; Díaz Hormazábal, Ignacio; Fraver, Shawn; Frelich, Lee E.; Gutiérrez, Álvaro G.; Hart, Sarah J.; Harvey, Brian J.; He, Hong S.; Hlásny, Tomáš; Holz, Andrés; Kitzberger, Thomas; Kul (Nature Publishing Group, 2018)
      © 2018, The Author(s). Increasing evidence indicates that forest disturbances are changing in response to global change, yet local variability in disturbance remains high. We quantified this considerable variability and ...
    • Energetics and electronic properties of interstitial chlorine in CdTe 
      Orellana, Walter; Menéndez Proupin, Eduardo; Flores, Mauricio A. (Wiley, 2018)
      The role of interstitial chlorine in the electronic properties of CdTe isaddressed by density functional theory calculations including hybrid func-tionals and large unit cells. The stability and diffusion energy barriers ...
    • Vibrational and optical properties of CZTS derivatives for photovoltaic applications: Synthesis of ... 
      Pinto, C.; López, F.; Galdámez, A.; Barahona, P.; Moris, S. (Elsevier Masson SAS, 2018)
      © 2018 Elsevier Masson SAS Herein, we report the vibrational and optical properties of new Cu2ZnSn1-xGexS2Se2 solid solutions prepared by isomorphic substitution of a fraction of Se by S in Cu2ZnSn1-xGexSe4 (CZTGeSe) through ...
    • Er-doped nanostructured BaTiO3 for NIR to visible upconversion 
      Meneses Franco, Ariel; Campos Vallette, Marcelo; Vásquez Arancibia, Sergio; Soto Bustamante, Eduardo (MDPI AG, 2018)
      Photoluminescent mechanisms in erbium-doped barium titanate nanoparticle systems were studied. Er3+ ions were introduced into the BaTiO3 lattice by the sol-gel method. The resulting Er3+ concentration was between 0% and ...
    • Vasodilator and hypotensive effects of pure compounds and hydroalcoholic extract of Xenophyllum poposum ... 
      Cifuentes, Fredi; Palacios, Javier; Kuzmicic, Jovan; Carvajal, Lorena; Muñoz, Fernanda; Quispe, Cristina; Nwokocha, Chukwuemeka R.; Morales, Glauco; Norambuena Soto, Ignacio; Chiong Lay, Mario; Paredes, Adrián (Elsevier GmbH, 2018)
      © 2018 Background: Xenophyllum poposum is an endemic species of the Andes Cordillera, popularly known as Popusa. Popusa is widely used by mountain communities as a folk medicine to treat altitude sickness and hypertension. ...
    • Morphological characterization of sweet chestnut fruits from forest plantations in central Chile Caracterización ... 
      Benedetti, Susana; Balocchi, Francisco; Gonzalez, Marta; Garcia-Chevesich, Pablo (Pontificia Universidad Catolica de Chile, Facultad de Agronomia e Ingenieria Forestal, 2018)
      © 2018, Pontificia Universidad Catolica de Chile, Facultad de Agronomia e Ingenieria Forestal. All rights reserved. The sweet chestnut (Castanea sativa Mill.) is one of the most important starchy foods worldwide due to its ...
    • Cold-active pectinolytic activity produced by filamentous fungi associated with Antarctic marine sponges 
      Poveda, Gabriela; Gil Durán, Carlos; Vaca Cerezo, Inmaculada; Levicán, Gloria; Chávez, Renato (2018)
      BACKGROUND: Pectinase enzymes catalyze the breakdown of pectin, a key component of the plant cell wall. At industrial level, pectinases are used in diverse applications, especially in food-processing industry. Currently, ...
    • Enhancement photocatalytic activity of the heterojunction of two-dimensional hybrid semiconductors ZnO/V2O5 
      Aliaga, Juan; Cifuentes, Nasla; González Moraga, Guillermo; Sotomayor Torres, Clivia; Benavente Espinosa, Eglantina (MDPI AG, 2018)
      © 2018 by the authors. Licensee MDPI, Basel, Switzerland. In this work, we report the fabrication of the new heterojunction of two 2D hybrid layered semiconductors—ZnO (stearic acid)/V2O5 (hexadecylamine)—and its behavior ...
    • Jitterbug/Filamin and Myosin-II form a complex in tendon cells required to maintain epithelial shape and ... 
      Manieu, Catalina; Olivares, Gonzalo H.; Vega-Macaya, Franco; Valdivia, Mauricio; Olguín, Patricio (Elsevier Ireland Ltd, 2018)
      © 2018 Elsevier B.V. During musculoskeletal system development, mechanical tension is generated between muscles and tendon-cells. This tension is required for muscle differentiation and is counterbalanced by tendon-cells ...
    • The urban matrix matters: Quantifying the effects of surrounding urban vegetation on natural habitat remnants ... 
      Fernández, Ignacio C.; Wu, Jianguo; Simonetti Zambelli, Javier Andrés (Elsevier B.V., 2018)
      © 2018 Elsevier B.V. Urbanization destroys and fragments natural habitats, resulting in a system of natural remnants embedded in an urban matrix. Urban natural remnants (UNRs) can provide multiple ecosystem services for ...
    • “Shepherd’s crook” neurons drive and synchronize the enhancing and suppressive mechanisms of the midbrain ... 
      Garrido Charad, Florencia; Vega Zúñiga, Tomás; Gutiérrez Ibáñez, Cristián; Fernandez, Pedro; López-Jury, Luciana; González-Cabrera, Cristian; Karten, Harvey J.; Luksch, Harald; Marín, Gonzalo J. (National Academy of Sciences, 2018)
      © National Academy of Sciences. All rights reserved. The optic tectum (TeO), or superior colliculus, is a multisensory midbrain center that organizes spatially orienting responses to relevant stimuli. To define the stimulus ...
    • Saturable impurity in an optical array: Green function approach 
      Molina Gálvez, Mario (American Physical Society, 2018)
      © 2018 American Physical Society. We examine a one-dimensional linear waveguide array containing a single saturable waveguide. By using the formalism of lattice Green functions, we compute in closed form the localized mode ...
    • Disentangling demographic co-effects of predation and pollution on population dynamics 
      Reyes, Claudio A.; Ramos Jiliberto, Rodrigo; Arim, Matías; Lima, Mauricio (Blackwell, 2018)
      In nature species react to a variety of endogenous and exogenous ecological factors. Understanding the mechanisms by which these factors interact and drive population dynamics is a need for understanding and managing ...
    • Thorson's rule, life-history evolution, and diversification of benthic octopuses (Cephalopoda: Octopodoidea) 
      Ibáñez, Christian M.; Rezende, Enrico; Sepúlveda, Roger D.; Avaria Llautureo, Jorge; Hernández, Cristián E.; Sellanes, Javier; Poulin, Elie; Pardo Gandarillas, María Cecilia (Society for the Study of Evolution, 2018)
      Here, we evaluate the so-called Thorson’s rule, which posits that direct-development and larger eggs are favored toward the poles in marine organisms and whose validity been the subject of considerable debate in the ...
    • A systematic electronic structure study of the O–O bond dissociation energy of hydrogen peroxide and the ... 
      Carmona, Danilo J.; Contreras, David R.; Douglas-Gallardo, Oscar A.; Vogt-Geisse, Stefan; Jaque, Pablo; Vöhringer-Martinez, Esteban (Springer New York LLC, 2018)
      © 2018, Springer-Verlag GmbH Germany, part of Springer Nature. Hydroxyl radical reduction and peroxide bond breaking in hydrogen peroxide are reactions involved in various processes such as the Fenton reaction, which has ...
    • Gastroprotective activity of Parastrephia quadrangularis (Meyen), cabrera from the atacama desert 
      Ardiles, Alejandro; Barrientos, Ruth; Simirgiotis, Mario J.; Bórquez, Jorge; Sepúlveda, Beatriz; Areche, Carlos (MDPI AG, 2018)
      © 2018 MDPI AG. All rights reserved. Forty-three metabolites including several methoxylated flavonoids, tremetones, and ent-clerodane diterpenes were accurately identified for the first time in the ethanolic extract of P. ...
    • Gating charge displacement in a monomeric voltage-gated proton (Hv1) channel 
      Carmona, Emerson M.; Peter Larsson, H.; Neely, Alan; Alvarez, Osvaldo; Latorre, Ramón; Gonzalez, Carlos (National Academy of Sciences, 2018)
      © 2018 National Academy of Sciences. All Rights Reserved. The voltage-gated proton (Hv1) channel, a voltage sensor and a conductive pore contained in one structural module, plays important roles in many physiological ...
    • Time series analysis in earthquake complex networks 
      Pastén, Denisse; Czechowski, Zbigniew; Toledo Cabrera, Benjamín (American Institute of Physics Inc., 2018)
      © 2018 Author(s). We introduce a new method of characterizing the seismic complex systems using a procedure of transformation from complex networks into time series. The undirected complex network is constructed from seismic ...