Mostrando ítems 261-280 de 7087

    • Revised Timing of Cenozoic Atlantic Incursions and Changing Hinterland Sediment Sources during Southern Patagonian Orogenesis 

      Fosdick, Julie C.; VanderLeest, R. A.; Bostelmann, J. E.; Leonard, J. S.; Ugalde, R. [Univ Mayor, Fac Ciencias, Escuela Geol, Chile]; Oyarzún, J. L.; Griffin, Miguel (GEOSCIENCEWORLD, 2020-06)
      New detrital zircon U-Pb geochronology data from the Cenozoic Magallanes-Austral Basin in Argentina and Chile similar to 51 degrees S establish a revised chronostratigraphy of Paleocene-Miocene foreland synorogenic strata ...
    • Invasion dynamics of the European bumblebee Bombus terrestris in the southern part of South America 

      Fontúrbel, Francisco E.; Murua, Maureen M. [Univ Mayor, Fac Estudios Interdisciplinarios, Ctr GEMA Genom Ecol & Medio Ambiente, Chile]; Vieli, Lorena (NATURE PORTFOLIO, 2021-07-27)
      Invasive species are one of the main biodiversity loss drivers. Some species can establish and thrive in novel habitats, impacting local communities, as is the case of managed pollinators. In this regard, an invasive ...
    • Uso de herramientas de la Web 2.0 en la metodología aula invertida: una opción para clases a distancia en tiempos de COVID-19 

      Flores-Angulo, Carlos; Calleja, José [Univ Mayor, Escuela Med, Temuco, Chile]; Sandoval, Paulo (SOC MEDICA SANTIAGO, 2021-07)
      Background: The flipped classroom is an active method where information in delivered before class and the time allocated for it is dedicated to achieving more complex learning objectives. Diverse resources are used in each ...
    • Accelerometer-Measured Daily Step Counts and Adiposity Indicators among Latin American Adults: A Multi-Country Study 

      Ferrari, Gerson; Marqués, Adilson; Barreira, Tiago V.; Kovalskys, Irina; Gómez, Georgina; Rigotti, Attilio; Cortés, Lilia Yadira; Yépez García, Martha Cecilia; Pareja, Rossina G.; Herrera-Cuenca, Marianella; Guajardo, Viviana; Leme, Ana Carolina B.; Guzmán Habinger, Juan [Univ Mayor, Sci Fac, Sports Med & Phys Act Specialty, Chile]; Valdivia-Moral, Pedro; Suarez-Reyes, Mónica; Ihle, Andreas; Gouveia, Elvio R.; Fisberg, Mauro (MDPI, 2021-05)
      The aim of the present study was to examine the sex-related associations between accelerometer-measured daily step counts and adiposity indicators in adults from eight Latin American countries. We analyzed data from 2524 ...
    • Sociodemographic inequities and active transportation in adults from Latin America: an eight-country observational study 

      Ferrari, Gerson; Guzmán-Habinger, Juan [Univ Mayor, Med Deporte & Actividad Fis, Fac Ciencias, Chile]; Chávez, Javiera L.; Werneck, Andre O.; Silva, Danilo R.; Kovalskys, Irina; Gómez, Georgina; Rigotti, Attilio; Cortés, Yadira Lilia; Yépez García, Martha Cecilia; Pareja, Rossina G.; Herrera-Cuenca, Marianella; Drenowatz, Clemens; Cristi-Montero, Carlos; Marqués, Adilson; Peralta, Miguel; Leme, Ana Carolina B.; Fisberg, Mauro (BMC, 2021-08-26)
      Background: Active transportation is a crucial sort of physical activity for developing sustainable environments and provides essential health benefits. This is particularly important in Latin American countries because ...
    • Bi-objective optimization of multiple agro-industrial wastes supply to a cogeneration system promoting local circular bioeconomy 

      Fernández-Puratich, Harald [Univ Mayor, Fac Ciencias, Escuela Ingn Medio Ambiente & Sustentabilidad, Chile]; Rebolledo-Leiva, Ricardo; Hernández, Diógenes; Gómez-Lagos, Javier E.; Armengot-Carbo, Bruno; Oliver-Villanueva, José Vicente (ELSEVIER SCI LTD, 2021-10-15)
      This research analyses and proposes an optimization model for the supply of biomass to a combined heat and power (CHP) system with a supply of different biomasses at a local level under Mediterranean conditions. The research ...
    • Gaps, biases, and future directions in research on the impacts of anthropogenic land-use change on aquatic ecosystems: a topic-based bibliometric analysis 

      Fernández, Francisco J. [Univ Mayor, Sch Agron, Fac Sci, Chile]; Muñoz, Manuel; Ponce Oliva, Roberto D.; Vásquez-Lavín, Felipe; Gelcich, Stefan (SPRINGER HEIDELBERG, 2021-08)
      Anthropogenic land use change (ALUC) satisfies human needs but also impacts aquatic ecosystems. Aquatic ecosystems are intrinsically linked with terrestrial landscapes, an association that is already recognized as a key ...
    • Challenges and opportunities for the conservation of marine mammals in the Southeast Pacific with the entry into force of the US Marine Mammal Protection Act 

      Felix, Fernando; Mangel, Jeffrey C.; Alfaro-Shigueto, Joanna; Alberto Cocas, Luis; Guerra, Jorge; Pérez-Alvarez, María José [Univ Mayor, Fac Ciencias, Escuela Med Vet, Chile]; Sepúlveda, Maritza (ELSEVIER, 2021-11)
      With the entry into force of the Fish and Fish Products Import Provisions of the United States Marine Mammal Protection Act (MMPA), countries that export such products to the U.S. market could face significant challenges. ...
    • Redox stress response and UV tolerance in the acidophilic iron-oxidizing bacteria Leptospirillum ferriphilum and Acidithiobacillus ferrooxidans 

      Farias, Ricardo; Norambuena, Javiera; Ferrer, Alonso [Univ Mayor, Fac Estudios Interdisciplinarios, Nucleo Quim & Bioquim, Chile]; Camejo, Pamela; Zapata, Claudia; Chávez, Renato; Orellana, Omar; Levicán, Gloria (ELSEVIER, 2021-05)
      The oxidative stress response represents a sum of antioxidative mechanisms that are essential for determining the adaptation and abundance of microorganisms in the environment. Leptospirillum ferriphilum and Acidithiobacillus ...
    • Endodoncia: conceptos básicos 

      Fuentes Bustamante, Rodrigo; Pérez V., Leopoldo [coeditor); Rodríguez N., Cynthia [ilustradora] (Chile. Universidad Mayor, 2016-06)
      Les presentamos la segunda edición del texto guía de nuestra asignatura. Después de un arduo trabajo, estamos felices de seguir fieles al compromiso adquirido con el estudio y formación de nuestros alumnos de endodoncia. ...
    • UV-B Radiation as a Factor that Deserves Further Research in Bolivian Viticulture: A Review 

      Gutiérrez-Gamboa, G. [Univ Mayor, Fac Ciencias, Escuela Agron, Chile]; Pszczolkowski, P.; Canon, P. [Univ Mayor, Fac Ciencias, Escuela Agron, Chile]; Taquichiri, M; Penarrieta, J. M. (SOUTH AFRICAN SOC ENOLOGY & VITICULTURE-SASEV, 2021-12)
      Bolivian viticulture has acquired an incipient notoriety in the international wine market due to the production of high-altitude wines with a high antioxidant potential. Andes agricultural regions present an advantage for ...
    • Leaf Morpho-Colorimetric Characterization of Different Grapevine Varieties through Changes on Plant Water Status 

      Gutiérrez-Gamboa, Gastón [Univ Mayor, Fac Ciencias, Escuela Agron, Chile]; Torres-Huerta, Nicolas; Araya-Alman, Miguel; Verdugo-Vásquez, Nicolas; Moreno-Simunovic, Yerko; Valdés-Gómez, Héctor; Acevedo-Opazo, Cesar (MDPI, 2021-09)
      Background: Currently, some ampelographic methods are developing in order to identify grapevine varieties. For this purpose, morpho-colorimetric parameters in leaves have been analyzed by digital imagen analysis, but some ...
    • Biovera-Epi: A new database on species diversity, community composition and leaf functional traits of vascular epiphytes along gradients of elevation and forest-use intensity in Mexico 

      Guzmán-Jacob, Valeria; Weigelt, Patrick; Zotz, Gerhard; Kromer, Thorsten; Kreft, Holger; Craven, Dylan [Univ Mayor, Santiago, Chile] (PENSOFT PUBLISHERS, 2021-10-07)
      Background This data paper describes a new, comprehensive database (BIOVERA-Epi) on species distributions and leaf functional traits of vascular epiphytes, a poorly studied plant group, along gradients of elevation and ...
    • Active carpets drive non-equilibrium diffusion and enhanced molecular fluxes 

      Guzmán-Lastra, Francisca [Univ Mayor, Fac Estudios Interdisciplinarios, Escuela Data Sci, Chile]; Lowen, Hartmut; Mathijssen, Arnold J. T. M. (NATURE PORTFOLIO, 2021-03-26)
      Biological activity is often highly concentrated on surfaces, across the scales from molecular motors and ciliary arrays to sessile and motile organisms. These 'active carpets' locally inject energy into their surrounding ...
    • First-Principles Identification of Single Photon Emitters Based on Carbon Clusters in Hexagonal Boron Nitride 

      Jara, Cesar; Rauch, Tomas; Botti, Silvana; Marqués, Miguel A. L.; Castellanos-Aguila, J. E.; Coto, Raúl; Maze, Jerónimo R.; Muñoz, Francisco; Norambuena, Ariel [Univ Mayor, Fac Estudios Interdisciplinarios, Ctr Invest DAiTA Lab, Chile]; Coto, Raúl [Univ Mayor, Fac Estudios Interdisciplinarios, Ctr Invest DAiTA Lab, Chile] (AMER CHEMICAL SOC, 2021-02-18)
      A recent study associates carbon with single photon emitters (SPEs) in hexagonal boron nitride (h-BN). This observation, together with the high mobility of carbon in h-BN, suggests the existence of SPEs based on carbon ...
    • Type I Interferon Dependent hsa-miR-145-5p Downregulation Modulates MUC1 and TLR4 Overexpression in Salivary Glands From Sjogren's Syndrome Patients 

      Jara, Daniela; Carvajal, Patricia; Castro, Isabel; Barrera, María-José; Aguilera, Sergio; Molina, Claudio; Hermoso, Marcela; González, María-Julieta; González, Sergio [Univ Mayor, Fac Ciencias, EScuela Odontol, Chile] (FRONTIERS MEDIA SA, 2021-06-02)
      Sjogren's syndrome (SS) is an autoimmune disease that mainly affects salivary glands (SG) and is characterized by overactivation of the type I interferon (IFN) pathway. Type I IFNs can decrease the levels of hsa-miR-145-5p, ...
    • New Hybrid Copper Nanoparticles/Conjugated Polyelectrolyte Composite with Antibacterial Activity 

      Jessop, Ignacio A.; Pérez, Jasmín P.; Jachura, Andrea; Núñez, Hipólito; Saldias, Cesar; Isaacs, Mauricio; Tundidor-Camba, Alain; Terraza, Claudio A.; Cárcamo-Vega, José J.; Araya-Duran, Ingrid [Univ Mayor, Fac Ciencias, Ctr Nanotecnol Aplicada, Chile]; Camarada, Maria B. [Univ Mayor, Fac Estudios Interdisciplinarios, Nucleo Quim & Bioquim, Chile] (MDPI, 2021-02)
      In the search for new materials to fight against antibiotic-resistant bacteria, a hybrid composite from metallic copper nanoparticles (CuNPs) and a novel cationic pi-conjugated polyelectrolyte (CPE) were designed, synthesized, ...
    • Mutual Information and Quantum Discord in Quantum State Discrimination with a Fixed Rate of Inconclusive Outcomes 

      Solis-Prosser, Miguel Ángel; Neves, Leonardo; Delgado, Aldo; Jimenez, Omar [Univ Mayor, Fac Ciencias, Ctr Opt & Informac Cuant, Chile] (MDPI, 2021-01)
      We studied the mutual information and quantum discord that Alice and Bob share when Bob implements a discrimination with a fixed rate of inconclusive outcomes (FRIO) onto two pure non-orthogonal quantum states, generated ...
    • SinEx DB 2.0 update 2020: database for eukaryotic single-exon coding sequences 

      Jorquera, R; Clausen, PTLC; Petersen, B.; González, C. [Univ Mayor, Ctr Genom & Bioinformat, Chile]; Holmes, DS [Univ Mayor, Ctr Genom & Bioinformat, Chile] (Oxford University Press, 2021-01-28)
      Single-exon coding sequences (CDSs), also known as 'single-exon genes' (SEGs), are defined as nuclear, protein-coding genes that lack introns in their CDSs. They have been studied not only to determine their origin and ...
    • Sleep Quality in Chilean Professional Soccer Players 

      Barahona-Fuentes, Guillermo; Yeomans Cabrera, Maria Mercedes; Huerta Ojeda, Álvaro; Jorquera-Aguilera, Carlos [Univ Mayor, Fac Ciencias, Escuela Nutr & Dietet, Chile]; Pérez Pena, María José [Univ Mayor, Fac Ciencias, Nutr Actividad Fis & Deporte, Escuela Nutr & Dietet, Chile] (MDPI, 2021-06)
      Recent research has shown that good sleep quality has a positive effect on physical performance. However, sleep quality in Chilean professional soccer players is unknown. The purpose of this study was to determine sleep ...