Mostrando ítems 1641-1660 de 7669

    • Structural bases that underline Trypanosoma cruzi calreticulin proinfective, antiangiogenic and antitumor properties 

      Peña Alvarez, Jaime; Teneb, Jaime; Maldonado, Ismael; Weinberger, Katherine [Univ Mayor, Fac Ciencias, Escuela Med Vet, Chile]; Rosas, Carlos; Lemus, David; Valck, Carolina; Olivera-Nappa, Alvaro; Asenjo, Juan A.; Ferreira, Arturo (Urban und Fischer Verlag GmbH und Co. KG, 2020-01)
      Microbes have developed mechanisms to resist the host immune defenses and some elicit antitumor immune responses. About 6 million people are infected with Trypanosoma cruzi, the protozoan agent of Chagas' disease, the sixth ...
    • Structural Relaxation and Crystalline Phase Effects on the Exchange Bias Phenomenon in FeF2/Fe Core/Shell Nanoparticles 

      Velásquez, Ever A.; Mazo-Zuluaga, Johan; Tangarife, Edwin [Univ Mayor, Fac Ciencias, Ctr Nanotecnol Aplicada, Chile]; Mejia-López, José (John Wiley and Sons Ltd, 2020-09)
      In this study, the power of first-principles methods along with molecular dynamics and atomistic Monte Carlo simulations is employed to elucidate the effects of the structural relaxation on the exchange bias (EB) behavior ...
    • Estructura y regeneración de bosques de Prumnopitys andina en los Andes del sur de Chile 

      Vargas-Gaete, Rodrigo; Salas-Eljatib, Christian [Univ Mayor, Ctr Modelac & Monitored Ecosistemas, Chile]; Penneckamp, Diego; Neira, Zoia; Cristina Diez, M.; Vargas-Picon, Ricardo (Universidad de Concepcion, 2020-06)
      Prumnopitys andina (lleuque) es una especie de conífera con una distribución restringida en Chile y Argentina. A pesar de su importancia ecológica, los conocimientos sobre la estructura y dinámica de los bosques donde crece ...
    • Sudden gait perturbations elicit sex-specific neuromuscular trunk responses in persons with low back pain 

      Mueller, Juliane; Martínez-Valdés, Eduardo [Univ Mayor, CIFE, Chile]; Mueller, Steffen; Kulig, Kornelia; Mayer, Frank (Elsevier Ltd., 2020-03)
      Persons with low back pain (LBP) exhibit delayed trunk muscle onset and increased co-contractions as a response to quasi-static and dynamic sudden trunk loading in comparison to back-healthy controls. Although LBP is more ...
    • La superficie como retrato de la resistencia 

      Casals Aguirre, Pablo [Univ Mayor, Fac Humanidades, Escuela Arquitectura, Chile]; Uribe Ortiz, José Luis (Pontificia Universidad Catolica de Chile, 2020-08)
      Tras el estallido social de octubre de 2019 en Chile, la arquitectura se transformó en una de sus evidencias materiales. Con el afán de resistir los posibles embates de violencia, se cubrieron las fachadas de los edificios ...
    • Taxonomic reassignment of Pseudohaptolina birgeri comb. nov. (Haptophyta) 

      Gerikas Ribeiro, Catherine [Univ Mayor, GEMA Ctr Genom Ecol & Environm, Chile]; Lopes dos Santos, Adriana; Probert, Ian; Vaulot, Daniel; Edvardsen, Bente (Allen Press Inc., 2020-11)
      The haptophyte genus Pseudohaptolina (formerly Chrysochromulina clade B1-3) currently harbours two species: Pseudohaptolina arctica and Pseudohaptolina sorokinii. In addition, Chrysochromulina birgeri is expected to belong ...
    • The association of the neutrophil-lymphocyte ratio with the presence of minimal residual disease and outcome in patients with Stage II colon cancer treated with surgery alone 

      Murray, Nigel P.; Villalón, Ricardo; Orrego, Shenda [Univ Mayor, Fac Med, Chile]; Guzmán, Eghon [Univ Mayor, Fac Med, Chile] (Wiley-Blackwell Publishing Ltd, 2021-04)
      Aim Despite curative surgery, 25% of patients with Stage II colorectal cancer will relapse due to minimal residual disease (MRD). Markers of immune function, such as the neutrophil to lymphocyte ratio (NLR), may be associated ...
    • The impact of cannabis legalization in Uruguay on adolescent cannabis use 

      Laqueur, Hannah; Rivera-Aguirre, Ariadne; Shev, Aaron; Castillo-Carniglia, Alvaro [Univ Mayor, Soc & Hlth Res Ctr, Chile]; Rudolph, Kara E.; Ramírez, Jessica; Martins, Silvia S.; Cerda, Magdalena (Elsevier, 2020-06)
      Background: In 2013, Uruguay became the first country in the world to legalize recreational cannabis, instituting a non-commercial state regulatory model of production and supply. This study provides the first empirical ...
    • The Microbial Composition in Circumneutral Thermal Springs from Chignahuapan, Puebla, Mexico Reveals the Presence of Particular Sulfur-Oxidizing Bacterial and Viral Communities 

      Castelan-Sánchez, Hugo Gildardo; Meza-Rodríguez, Pablo M.; Carrillo, Erika; Ríos-Vázquez, David I.; Linan-Torres, Arturo; Batista-Garcia, Ramón Alberto; Pérez-Rueda, Ernesto [Univ Mayor, Fac Ciencias, Ctr Genom & Bioinformat, Chile]; Rojas-Ruíz, Norma Elena; Dávila-Ramos, Sonia (MDPI AG, 2020-11)
      Terrestrial thermal springs are widely distributed globally, and these springs harbor a broad diversity of organisms of biotechnological interest. In Mexico, few studies exploring this kind of environment have been described. ...
    • The Mitochondrial Unfolded Protein Response: A Hinge Between Healthy and Pathological Aging 

      Muñoz-Carvajal, Francisco [Univ Mayor, Fac Ciencias, Ctr Integrat Biol, Chile]; Sanhueza, Mario [Univ Mayor, Fac Ciencias, Ctr Integrat Biol, Chile] (Frontiers Media S.A., 2020-09)
      Aging is the time-dependent functional decline that increases the vulnerability to different forms of stress, constituting the major risk factor for the development of neurodegenerative diseases. Dysfunctional mitochondria ...
    • The negative effect of lianas on tree growth varies with tree species and seasonPalavras-chave 

      Venegas-Gonzalez, Alejandro [Univ Mayor, Fac Ciencias, Hemera Ctr Observac Tierra, Escuela Ingn Forestal, Chile]; Mello, Felipe N. A.; Schnitzer, Stefan A.; Cesar, Ricardo G.; Tomazello-Filho, Mario (Wiley-Blackwell, 2020-05)
      Lianas reduce tree growth, reproduction, and survival in tropical forests. Liana competition can be particularly intense in isolated forest fragments, where liana densities are high, and thus, host tree infestation is ...
    • Situación actual del cáncer de colon en Chile: una mirada traslacional 

      Ríos, Juvenal A. [Univ Mayor, Escuela Med, Fac Ciencias, Chile]; Francisca Barake, M.; Arce, María José; López-Kostner, Francisco; Labbe, Tomas P.; Villena, Jessica; Becerra, Sergio (Sociedad Medica de Santiago, 2020-06)
      Colorectal (CRC) is one of the most common types of cancer worldwide. Most tumors develop from an adenoma in a period of 10 to 15 years, but some may appear without previous adenomatous lesions. Seventy-five percent of ...
    • The Reprimo-Like Gene Is an Epigenetic-Mediated Tumor Suppressor and a Candidate Biomarker for the Non-Invasive Detection of Gastric Cancer 

      Alejandra Alarcón, Maria; Olivares, Wilda; Cordova-Delgado, Miguel; Muñoz-Medel, Matías; Mayo, Tomas de [Univ Mayor, Fac Sci, Sch Med, Chile]; Carrasco-Avino, Gonzalo; Wichmann, Ignacio; Landeros, Natalia; Amigo, Julio; Norero, Enrique; Villarroel-Espindola, Franz; Riquelme, Arnoldo; Garrido, Marcelo; Owen, Gareth, I.; Corvalan, Alejandro H. (MDPI Multidisciplinary Digital Publishing Institute, 2020-12)
      Reprimo-like (RPRML) is an uncharacterized member of the Reprimo gene family. Here, we evaluated the role of RPRML and whether its regulation by DNA methylation is a potential non-invasive biomarker of gastric cancer. RPRML ...
    • Time use: the role of sleep 

      Jara-Díaz, Sergio R.; Rosales-Salas, Jorge Agustín [Univ Mayor, Ctr Econ & Polit Sociales, Chile] (Elsevier Ltd., 2020-06)
      Time use models have been used to estimate the value of leisure - one of the components of the value of travel time savings - usually accepting that sleep duration is an exogenous variable. In this paper, we depart from ...
    • Time-Series of Vegetation Indices (VNIR/SWIR) Derived from Sentinel-2 (A/B) to Assess Turgor Pressure in Kiwifruit 

      Jopia, Alberto [Univ Mayor, Fac Ciencias, Hemera Ctr Observac Tierra, Escuela Agron, Chile]; Zambrano, Francisco [Univ Mayor, Fac Ciencias, Hemera Ctr Observac Tierra, Escuela Agron, Chile]; Pérez-Martínez, Waldo [Univ Mayor, Fac Ciencias, Hemera Ctr Observac Tierra, Escuela Ingn Forestal, Chile]; Molina, Julio [Univ Mayor, Fac Ciencias, Escuela Agron, Chile]; Hoz Mardones, Felipe de la (MDPI AG, 2020-11)
      Simple Summary: Measures of plant water status on kiwifruit were evaluated using Sentinel-2 (A/B) for two seasons in Central Chile. For more than ten years, Central Chile has faced drought conditions, which impact crop ...
    • Consumo de azúcares totales y su asociación con obesidad en población chilena: resultados del estudio GENADIO 

      Mardones, Lorena; Villagrán, Marcelo; Petermann-Rocha, Fanny; Maria Leiva, Ana; Celis-Morales, Carlos A. [Univ Mayor, Ctr Exercise Physiol Res CIFE, Chile]; Martínez-Sanguinetti, María Adela (Sociedad Médica de Santiago, 2020-07)
      Background: Sugar intake is a risk factor for the development of obesity. Aim: To investigate the association between total sugar intake and obesity markers in Chilean adults. Material and Methods: This cross-sectional ...
    • Association between Walking Pace and Diabetes: Findings from the Chilean National Health Survey 2016-2017 

      Cigarroa, Igor; Espinoza-Sanhueza, María José; Lasserre-Laso, Nicole; Díaz-Martínez, Ximena; Garrido-Mendez, Alex; Matus-Castillo, Carlos; Martínez-Sanguinetti, María Adela; Leiva, Ana María; Petermann-Rocha, Fanny; Parra-Soto, Solange; Concha-Cisternas, Yeny; Troncoso-Pantoja, Claudia; Martorell, Miquel; Ulloa, Natalia; Waddell, Heather; Celis-Morales, Carlos A. [Univ Mayor, Ctr Exercise Physiol Res CIFE, Chile] (MDPI Multidisciplinary Digital Publishing Institute, 2020-08)
      Background: Walking pace is a well-known indicator of physical capability, but it is also a strong predictor of type 2 diabetes (T2D). However, there is a lack of evidence on the association between walking pace and T2D, ...
    • Association between Different Modes of Travelling and Adiposity in Chilean Population: Findings from the Chilean National Health Survey 2016-2017 

      Medina, Ignacio; Petermann-Rocha, Fanny; Waddell, Heather; Díaz-Martínez, Ximena; Matus-Castillo, Carlos; Cigarroa, Igor; Concha-Cisternas, Yeny; Salas-Bravo, Carlos; Martínez-Sanguinetti, Maria A.; Celis-Morales, Carlos A. [Univ Mayor, Ctr Exercise Physiol Res CIFE, Chile] (MDPI Multidisciplinary Digital Publishing Institute, 2020-05)
      Background: Active travel has been suggested as a feasible way of increasing physical activity levels. Although international studies have demonstrated its effect over different health outcomes and adiposity, there is still ...
    • Diagnóstico médico de depresión se asocia a sospecha de deterioro cognitivo en adultos mayores 

      Nazar, Gabriela; Ulloa, Natalia; Adela Martínez-Sanguinetti, María; Leiva, Ana María; Petermann-Rocha, Fanny; Díaz Martínez, Ximena; Lanuzal, Fabián; Cigarroa, Igor; Concha-Cisternas, Yeny; Troncoso, Claudia; Mardones, Lorena; Villagrán, Marcelo; Celis-Morales, Carlos A. [Univ Mayor, Ctr Exercise Physiol Res CIFE, Chile]; Grp Invest ELHOC (Sociedad Medica de Santiago, 2020-07)
      Background: Depression has been previously associated with cognitive impairment in high income country populations. However, its association in the Chilean population has not been investigated. Aim: To investigate the ...
    • Anthropometry, dietary intake, physical activity and sitting time patterns in adolescents aged 15-17 years: an international comparison in eight Latin American countries 

      Ferrari, Gerson Luis de Moraes [Univ Mayor, Ctr Invest Fisiol Ejercicio CIFE, Chile]; Kovalskys, Irina; Fisberg, Mauro; Gómez, Georgina; Rigotti, Attilio; Cortés Sanabria, Lilia Yadira; Yepez García, Martha Cecilia; Pareja Torres, Rossina Gabriella; Herrera-Cuenca, Marianella; Zalcman Zimberg, Iona; Guajardo, Viviana; Pratt, Michael; Nogueira Previdelli, Agatha; Scholes, Shaun; Celis-Morales, Carlos A. [Univ Mayor, Ctr Exercise Physiol Res CIFE, Chile]; Solé, Dirceu; ELANS Study Group (BioMed Central Ltd., 2020-01)
      Background: Although there is high prevalence of obesity and other cardiovascular risk factors among Latin American adolescents, there is limited evidence on dietary intake and physical activity (PA) patterns in this ...


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