Browsing by Title

Now showing items 239-258 of 92519

    • A case study of written feedback types and perceptions in a spanish L1 university context 
      Aranda Hernández, Carolina; Astudillo Olea, Francisca; Benavides Bravo, Marcela; Díaz Godoy, Lorena; Inostroza Orellana, Josefa; Novion Bravo, Nicole; Núñez Quiroz, Valentín; Romero Frabasile, Javiera; Toro Turén, Daniela (Universidad de Chile, 2013)
      This study explores feedback practices in an EFL university programme in Chile. In particular, it seeks to determine what kinds of feedback students receive and their quality. Furthermore, the study also aims at examining ...
    • A case-control study of a combination of single nucleotide polymorphisms and clinical parameters to predict ... 
      Córdova Delgado, Miguel Angel; Bravo, María Loreto; Cumsille, Elisa; Hill, Charlotte N.; Muñoz Medel, Matías; Pinto, Mauricio P.; Retamal, Ignacio N.; Lavanderos, María; Miquel, Juan Francisco; Rodríguez Fernández, María (BMC, 2021)
      Background: Fluoropyrimidine plus platinum chemotherapy remains the standard first line treatment for gastric cancer (GC). Guidelines exist for the clinical interpretation of four DPYD genotypes related to severe ...
    • A cell centered polynomial basis for efficient Galerkin predictors in the context of ADER finite volume ... 
      Montecinos, Gino I.; Balsara, Dinshaw S. (Elsevier, 2017)
      In this paper, a family of high-order space-time polynomials in the context of continuous and discontinuous Galerkin methods is proposed. The resulting Galerkin schemes are used as a building block in ADER methods for ...
    • A centimetre-wave excess over free–free emission in planetary nebulae 
      Casassus Montero, Simón; Nyman, L. A.; Dickinson, C.; Pearson, T. J. (WILEY-BLACKWELL, 2007-12-21)
      We report a centimetre-wave (cm-wave, 5-31 GHz) excess over free-free emission in planetary nebulae (PNe). Accurate 31- and 250-GHz measurements show that the 31-GHz flux densities in our sample are systematically higher ...
    • A Chair-based Abbreviated Repositioning Maneuver (ChARM) for fast treatment of posterior BPPV 
      Michael, Pía; Muñoz, Daniel; Tuma, Anton; Gárate, Matías; Barraza, Cristian; Nuñez, Marcia; Breinbauer, Hayo Andrés (Springer Verlag, 2019)
      © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.Purpose: To assess the effectiveness of a variation of the Epley maneuver, which we have titled “Chair-based Abbreviated Repositioning maneuver (ChARM)”, in ...
    • A changing etiologic scenario in liver transplantation for hepatocellular carcinoma in a multicenter cohort ... 
      Piñero, Federico; Costa, Paulo; Boteon, Yuri Longatto; Duque, Sergio Hoyos; Marciano, Sebastian; Anders, Margarita; Varón, Adriana; Zerega, Alina; Poniachik Teller, Jaime; Soza, Alejandro; Padilla Machaca, Martín; Menéndez, Josemaría; Zapata, Rodrigo; Vilatoba, Mario; Muñoz Muñoz, E. C. (Elsevier Masson SAS, 2018)
      © 2018 Elsevier Masson SASBackground and aim: Non-alcoholic fatty liver disease (NAFLD) is an increasing cause of hepatocellular carcinoma (HCC) and liver transplantation (LT). Our study focused on changing trends of liver ...
    • A characteristic martingale related to the counting process of records 
      Gouet Bañares, Raúl; López, F. Javier; Sanz, Gerardo (2007)
      Let (Xn) be a sequence of nonnegative, integrable, independent and identically distributed random variables, with common distribution function F. We consider the problem of finding all distribution functions F such that ...
    • A characterization of motivational theories present in MINEDUC's textbook: strategies for motivating and ... 
      Fontecilla Apablaza, Walezka (Universidad de Chile, 2018)
      The study reported in this thesis had the objective of analysing the theoretical basis of the textbook Strategies for motivating and managing the Chilean classroom by examining the main motivational theories and approaches ...
    • A cheap mesoporous silica from fly ash as an outstanding adsorbent for sulfate in water 
      Castillo, Ximena; Pizarro, Jaime; Ortiz, Claudia; Cid, Héctor; Flores Carrasco, Marcos; De Canck, Els; Van Der Voort, Pascal (Elsevier B.V., 2018)
      This research describes the development of a very cheap mesoporous silica material similar to hexagonal mesoporous silica (HMS) and using a silicate extract as precursor. This precursor is obtained from cheap fly ash by ...
    • A Chemical and kinematical analysis of the intermediate-age open cluster IC 166 from APOGEE and Gaia DR2 
      Schiappacasse Ulloa, J.; Tang, B.; Fernández Trincado, J. G.; Zamora, O.; Geisler, D.; Frinchaboy, P.; Schultheis, M.; Dell'Agli, F.; Villanova, S.; Masseron, T.; Meszaros, Sz.; Souto, D.; Hasselquist, S.; Cunha, K.; Smith, V. V.; García Hernández, D. A.; Vieira, K.; Robin, A. C.; Minniti, D.; Zasowski, G.; Moreno, E.; Pérez Villegas, A.; Lane, R. R.; Ivans, I. I.; Pan, K.; Nitschelm, C.; Santana, F.; Carrera, R.; Román Lopes, A. (IOP Publishing, 2018-09)
      IC 166 is an intermediate-age open cluster (OC) (similar to 1 Gyr) that lies in the transition zone of the metallicity gradient in the outer disk. Its location, combined with our very limited knowledge of its salient ...
    • A chloride channel from human placenta reconstituted into giant liposomes 
      Riquelme, Gloria; Stutzin Schottlander, Andrés; Barros, Luis Felipe; Liberona Leppe, José (Mosby-Year book, 1995)
      OBJECTIVE: Ion channels play important roles in epithelial transport, but they are difficult to access for conventional electrophysiologic studies in intact placenta. The purpose of this work was to explore the suitability ...
    • A cholinergic gating mechanism controlled by competitive interactions in the optic tectum of the pigeon 
      Marín Game, Gonzalo; Salas, Carlos; Sentis, Elisa; Rojas, Ximena; Letelier Parga, Juan; Mpodozis Marín, Jorge (2007)
      We describe the operation of a midbrain neural circuit in pigeons that may participate in selecting and attending to one visual stimulus from the myriad displayed in their visual environment. This mechanism is based on a ...
    • A cholinergic gating mechanism controlled by competitive interactions in the optic tectum of the pigeon 
      Mpodozis Marín, Jorge; Salas, Carlos; Sentis, Elisa; Rojas, Ximena; Letelier Parga, Juan; Marín Game, Gonzalo (2007)
      We describe the operation of a midbrain neural circuit in pigeons that may participate in selecting and attending to one visual stimulus from the myriad displayed in their visual environment. This mechanism is based on a ...
    • A cien años de la Psicopatología General de Jaspers. Su concepto del límite y sus relaciones con el posmodernismo 
      Villarino Herreria, Hernán (Sociedad Chilena para el Desarrollo de la Psiquiatría, 2013)
      En 2013 se cumplen cien años de la primera edición de la Psicopatología General. Dicen los filósofos que Jaspers era psiquiatra y los psiquiatras, filósofos, de modo que todos despachan rápidamente el asunto y lo dan por ...
    • A ciliary K+ conductance sensitive to charibdotoxin underlies inhibitory responses in toad olfactory receptor ... 
      Morales, Bernardo; Labarca, Pedro; Bacigalupo Vicuña, Juan (1995)
      In olfactory neurons from Caudiverbera caudiverbera, a mixture of putrid odorants trigger an inhibitory, K+-selective current and a hyperpolarizing receptor potential. The current-voltage relation resembles that of a ...
    • A cinco años de la ley N° 20.940, que moderniza el sistema de relaciones laborales: balance de las disposiciones ... 
      Maturana Rubilar, Constanza (Universidad de Chile, 2023)
      La Ley Nº 20.940 publicada en el Diario Oficial con fecha 08 de septiembre de 2016, que moderniza el sistema de relaciones laborales, afronta el problema de la desigualdad entre hombres y mujeres desde la figura del ...
    • A Circadian Clock Entrained by Melatonin Is Ticking in the Rat Fetal Adrenal 
      Torres Farfán, Claudia; Méndez, N.; Abarzúa Catalán, Lorena; Vilches, N.; Valenzuela, G. J.; Serón Ferré, María (ENDOCRINE SOC, 2011-05)
      The adrenal gland in the adult is a peripheral circadian clock involved in the coordination of energy intake and expenditure, required for adaptation to the external environment. During fetal life, a peripheral circadian ...
    • A citation analysis of fuzzy research by universities and countries 
      Alfaro García, Víctor G.; Merigó Lindahl, José; Alfaro Calderón, Gerardo G.; Plata Pérez, Leobardo; Gil Lafuente, Anna M.; Herrera Viedma, Enrique (IOS Press, 2020)
      This paper presents the results of a citation analysis focusing on the universities and countries represented by publications in 22 highly oriented fuzzy research journals using bibliometric techniques. Bibliometric studies ...
    • A classification system for predicting invasiveness using climatic niche traits and global distribution ... 
      Bustamante Araya, Ramiro; Alves, Lúa; Goncalves, Estefany; Duarte, Milen; Herrera, Ileana (Pensoft, 2020)
      Functional traits that predict plant invasiveness are a central issue in invasion ecology. However, in many cases they are difficult to determine, especially for a large set of species. Climatic niche traits can overcome ...
    • A CLCA regulatory protein present in the chemosensory cilia of olfactory sensory neurons induces a Ca2+ ... 
      Mura, Casilda V.; Delgado Arriagada, Ricardo; Delgado, María Graciela; Restrepo, Diego; Bacigalupo Vicuña, Juan (BIOMED Central Ltd., 2017)
      Background: CLCA is a family of metalloproteases that regulate Ca2+-activated Cl- fluxes in epithelial tissues. In HEK293 cells, CLCA1 promotes membrane expression of an endogenous Anoctamin 1 (ANO1, also termed ...