Now showing items 21-40 of 1344

  • A new method for evaluating knowledge, beliefs, and neuromyths about the mind and brain among italian teachers 

    Tovazzi, Alice; Giovannini, Serena; Basso, Demis (2020)
    Teachers often face situations that require them to apply knowledge about the mind and brain to education. Past studies have indicated that even if teachers show interest in cognitive neuroscience, they show high rates of ...

  • A non-Newtonian gradient for contour detection in images with multiplicative noise 

    Mora, Marco ORCID; Cordova-Lepe, Fernando ORCID; Del Valle-Salamanca, Rodrigo (2012)
    In this paper, a new operator for contour detection in images with multiplicative noise is presented. Traditional methods of edge detection, as those based in gradient operator or measures of variance, follow a logic and ...

  • A preliminary investigation into the effects of active interferential current therapy and placebo on pressure pain sensitivity: A random crossover placebo controlled study 

    Fuentes-Contreras, Jorge; Armijo-Olivo, Susan; Magee, David J.; Gross, Douglas P. (2011)
    Objective (1) To determine the effect of active and placebo interferential current on muscle pain sensitivity using an experimental mechanically induced pain model. (2) To evaluate the predictive role of expectations, ...

  • A proposal for innovation in the teaching of analysis and modeling of business process: Case UCM 

    Toranzo, Marco ORCID; Richaud, Alfredo; Santander, Víctor (2018)
    The reaccreditation of the career informatic engineering of the Universidad Católica del Maule left several lessons learned and challenges to improve the strategies and learning outcomes of the students, among them is the ...

  • A pulse fishery model with closures as function of the catch: Conditions for sustainability 

    Cordova-Lepe, Fernando ORCID; Del Valle-Salamanca, Rodrigo; Robledo, Gonzalo (2012)
    We present a model of single species fishery which alternates closed seasons with pulse captures. The novelty is that the length of a closed season is determined by the remaining stock size after the last capture. The ...

  • A replacement name for Hualpenia Mundaca, Parra & Vargas (Lepidoptera, Gracillariidae) 

    Mundaca-Ortega, Enrique; Vargas, Héctor A.; Parra, Luis E. (2013)
    A replacement name for Hualpenia Mundaca, Parra & Vargas (Lepidoptera, Gracillariidae). Vihualpenia nom. nov. is proposed as a replacement name for Hualpenia Mundaca, Parra & Vargas, 2013 (Lepidoptera, Gracillariidae), in ...

  • A review of convolutional neural network applied to fruit image processing 

    Naranjo-Torres, José; Mora, Marco ORCID; Hernández-García, Ruber; Barrientos, Ricardo ORCID; Fredes, Claudio ORCID; Valenzuela-Keller, Andrés A. (2020)
    Agriculture has always been an important economic and social sector for humans. Fruit production is especially essential, with a great demand from all households. Therefore, the use of innovative technologies is of vital ...

  • A simple Gause‐type predator–prey model considering social predation 

    González-Olivares, Eduardo; Valenzuela-Figueroa, Sebastián; Rojas, Alejandro ORCID (2019)
    The consumer–resource relationships are among the most fundamental of all ecological relationships and have been the focus of ecology since its beginnings. Usually are described by nonlinear differential equation systems, ...

  • A simultaneous blow-up problem arising in tumor modeling 

    Espejo, Elio; Vilches-Ponce, Karina; Conca, Carlos (2019)
    Although macrophages are part of the human immune system, it has been remarkably observed in laboratory experiments that decreasing its number can slow down the tumor progression. We analyze through a recently mathematical ...

  • A study of the cis–trans isomerization preference of N-alkylated peptides containing phosphorus in the side chain and backbone 

    De la Torre, Alexander F.; Ali, Akbar; Concepción, Odette; Montero-Alejo, Ana L.; Muñiz, Francisco M.; Jiménez, Claudio A.; Belmar, Julio; Velázquez-Libera, José Luis; Hernández-Rodríguez, Erix W.; Caballero, Julio (2019)
    The current work provides a study on the cis–trans isomerization behaviour of N-alkylated peptides decorated with phosphonate ester groups. A Ugi four-component reaction was chosen for the synthesis of N-alkylated peptides, ...

  • A tradeoff between fitness‐related traits mask facilitation in a semiarid ecosystem 

    Molina-Montenegro, Marco A.; Baldelomar, Mariela; Atala, Cristian; Torres-Díaz, Cristian (2020)
    In stressful environments, a nurse plant can ameliorate harsh biotic and abiotic conditions for another plant species that grows within its canopy. This canopy can act as a barrier for herbivores, reducing damage to the ...

  • A VLC channel model for underground mining environments with scattering and shadowing 

    Palacios-Játiva, Pablo; Azurdia-Meza, Cesar A.; Sánchez, Iván; Seguel, Fabian; Zabala-Blanco, David; Dehghan Firoozabadi, Ali; Gutiérrez, Carlos A.; Soto, Ismael (2020)
    Underground mining is an industry that preserves the miners' safety and efficiency in their work using wireless communication systems as a tool. In addition to communication links characterized by radio frequency signals, ...

  • Abandono docente en américa latina: revisión de la literatura 

    González Escobar, Mary L.; Silva-Peña, Ilich; Precht Gandarillas, Andrea ORCID; Kelchtermans, Geert (2020)
    La cantidad de docentes que deciden abandonar el aula antes de cumplir cinco años de experiencia es una preocupación creciente a nivel internacional. Para contribuir a la discusión, este estudio realiza una revisión ...

  • ABCB1/4 gallbladder cancer risk variants identified in India also show strong effects in Chileans 

    Boekstegers, Felix; Marcelain, Katherine; Barahona-Ponce, Carol; Baez Benavides, Pablo F.; Müller, Bettina; De Toro, Gonzalo; Retamales, Javier; Barajas, Olga; Ahumada, Monica; Morales, Erik; Rojas, Armando ORCID; Sanhueza, Verónica; Loader, Denisse; Rivera, María T.; Gutiérrez, Lorena; Bernal, Giuliano; Ortega, Alejandro; Montalvo, Domingo; Portiño, Sergio; Bertrán, María E.; Gabler, F.; Spencer, Loreto; Olloquequi, Jordi; González-Silos, Rosa; Fischer, Christine; Scherer, Dominique; Jenab, Mazda; Aleksandrova, Krasimira; Katzke, Verena; Weiderpass, Elisabete; Moradi, Tahereh; Fischer, Krista; Bossers, Willem; Brenner, Hermann; Hveem, Kristian; Eklund, Niina; Völker, Uwe; Waldenberger, Melanie; Fuentes-Guajardo, Macarena; González-José, Rolando; Bedoya, Gabriel; Bortolini, María C.; Canizales, Samuel; Gallo, Carla; Ruiz-Linares, Andres; Rothhammer, Francisco; Lorenzo-Bermejo, Justo (2020)
    Background: The first large-scale genome-wide association study of gallbladder cancer (GBC) recently identified and validated three susceptibility variants in the ABCB1 and ABCB4 genes for individuals of Indian descent. ...

  • Abordaje de la disfunción física en la formación inicial de profesionales de kinesiología/fisioterapia 

    Escobar-Cabello, Máximo; Cárcamo Vásquez, Héctor (2020)
    El ensayo identifica los factores estructurales del poder gubernamental que enfrentan las personas con disfunción física PDF). Se integra al análisis la formación tradicional que reciben profesionales de la kinesiología/ ...

  • Abordaje psicológico del covid-19: una revisión narrativa de la experiencia latinoamericana 

    Scholten, Hernán; Quezada-Scholz, Vanetza; Salas, Gonzalo ORCID; Barria-Asenjo, Nicol; Rojas-Jara, Claudio; Molina, Rodrigo; García, José E.; Jorquera, María T.J.; Marinero-Heredia, Arturo; Zambrano, Alba; Gómez-Muzzio, Esteban; Cheroni-Felitto, Ariadna; Caycho, Tomás; Reyes-Gallardo, Teresa; Pinochet-Mendoza, Nicolás; Binde, Pitágoras J.; Uribe-Muñoz, Jamadier E.; Bernal-Estupiñan, Johana A.; Somarriva, Francisco (2020)
    Ante la rápida expansión del nuevo coronavirus (COVID-19) en todo el planeta, este artículo presenta un conjunto de propuestas elaboradas por psicólogas y psicólogos de América Latina que buscan abordar este fenómeno desde ...

  • Acceptance of a food of animal origin obtained through genetic modification and cloning in South America: A comparative study among university students and working adults 

    Adasme-Berríos, Cristian ORCID; Schnettler, Berta; Velásquez, Carlos; Miranda, Horacio; Lobos, Germán; Orellana, Ligia; Sepúlveda, José; Miranda, Edgardo; Grunert, Klaus G. (2015)
    With the aim of comparing the acceptance of milk obtained from cloned, genetically modified (GM) and conventionally bred cows among working adults and university students, and identifying and characterizing typologies ...

  • Acceptance of beef obtained through genetic modification and cloning in university students and working adults in southern Chile 

    Adasme-Berríos, Cristian ORCID; Schnettler, Berta; Velásquez, Carlos; Lobos, Germán; Orellana, Ligia; Sepúlveda, José; Salinas-Oñate, Natalia; Grunert, Klaus G. (2016)
    Con el objetivo de comparar la aceptación de carne bovina de un animal convencional, clonado y genéticamente modificado (GM) en adultos laboralmente activos y estudiantes universitarios, e identificar segmentos de consumidores ...

  • Acceptance of functional food among Chilean consumers: Apple leather 

    Adasme-Berríos, Cristian ORCID; van Vliet, Maya; Schnettler, Berta (2015)
    Objetivo: el objetivo de este estudio es medir la aceptación de un alimento funcional como la lámina frutal de manzana, en base a características organolépticas. Se identificaron tipos de consumidores y sus preferencias ...

  • Acceso a la información en el libro de texto de matemática de primer año en educación primaria en Chile 

    Gutiérrez-Saldivia, Ximena; Díaz-Levicoy, Danilo A.; Barría Navarro, Cecilia; Salgado-Orellana, Norma (2019)
    Este trabajo tiene por objetivo analizar la accesibilidad a la información en el libro de texto de matemática del primer curso de Educación Primaria en Chile. La metodología es cuantitativa y de nivel descriptiva. Para el ...