Artículos Científicos: Envíos recientes
Mostrando publicaciones 3001-3020 de 3929
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Adaptación y validación de cuestionario para medir hábitos alimentarios en educación superior
(2019)Validar instrumentos de medición de datos es fundamental para constituir conocimiento certero y objetivo respecto a los hábitos en ingesta alimentaria. El artículo pretende adaptar y validar para el contexto de educación ...
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Dynamics of a modified Leslie-Gower predation model considering a generalist predator and the hyperbolic functional response
; ; Rojas, Alejandro
; (2019)
In the ecological literature, many models for the predator-prey interactions have been well formulated but partially analyzed. Assuming this analysis to be true and complete, some authors use that results to study a more ...
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Individuals identification based on palm vein matching under a parallel environment
; Barrientos, Ricardo; ; Mora, Marco (2019)
Biometric identification and verification are essential mechanisms in modern society. Palm vein recognition is an emerging biometric technique, which has several advantages, especially in terms of security against forgery. ...
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Propolis as an adjuvant in the healing of human diabetic foot wounds receiving care in the diagnostic and treatment centre from the regional hospital of Talca
(2019)Objective. Diabetic foot wounds are a relevant diabetes complication and a major health problem. It has been described that propolis has health benefits due to its anti-inflammatory, antioxidant, and support in the healing ...
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Urgent conservation needs in the Sikkim Himalaya biodiversity hotspot
(2019)Sikkim is the second smallest state in India. It has a human population of approximately 619,000 and covers a mountain-locked area of 7,096 km2. Recognised as a biodiversity ‘Hot Spot’ of global significance, it is situated ...
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Numerical simulation on supercritical CO2 fluid dynamics in a hollow fiber membrane contactor
(2019)This research answers the following question: What is the fluid dynamic behavior of a supercritical fluid (SCF) inside a membrane module? At this time, there is very little or no reported information that can provide an ...
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Calidad de vida y sobrecarga en cuidadores de escolares con discapacidad intelectual
(2019)Existe escasa evidencia sobre calidad de vida y sobrecarga emocional de cuidadores de estudiantes con discapacidad intelectual. Las investigaciones de los últimos años abordan esta problemática desde la persona adulta con ...
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An educational intervention on the risk perception of pesticides exposure and organophosphate metabolites urinary concentrations in rural school children in Maule Region, Chile
(2019)Background: Organophosphate (OP) pesticides can be hazardous to human health if not applied with appropriate precautions. There is evidence in the Maule region of Chile that rural schoolchildren are exposed to OP ...
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Las batallas por los significados en las democracias posdictatoriales. Una comparación entre Chile y España
(2019)El presente artículo compara Chile y España en base a tres marcos de interpretación colectiva predominantes de las trayectorias posdictatoriales (transición, memoria y derechos humanos). En esta comparación se identifica ...
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Seasonal root, shoot, and fruit growth patterns in kiwifruit (actinidia deliciosa a. Chev.) in central Chile
von Bennewitz, Eduardo; ; ; ; Carrasco-Benavides, Marcos (2019)
A study was conducted in kiwifruit vines (Actinidia deliciosa A. Chev.) in three different locations in central Chile to characterize the seasonal fine root growth in relation to shoot and fruit development as well as ...
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Competencia reflexiva en formadores del profesorado de matemática
(2020)El artículo presenta un estudio sobre el desarrollo de la competencia reflexiva en formadores del profesorado de matemática en etapa inicial. El objetivo es describir el ciclo formativo con el que se desarrolló esta ...
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Alfabetización micropolítica: Un desafío para la formación inicial docente
; ; Precht Gandarillas, Andrea; ; ; ; (2019)
En este artículo se discute el concepto de “alfabetización micropolítica” (Micropolitical Literacy), el cual surge como una metáfora del proceso de inserción de docentes principiantes en la organización escolar, entendiendo ...
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Film dressings based on hydrogels: Simultaneous and sustained-release of bioactive compounds with wound healing properties
(2019)This research proposes the rational modeling, synthesis and evaluation of film dressing hydrogels based on polyvinyl alcohol crosslinked with 20 different kinds of dicarboxylic acids. These formulations would allow the ...
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Programa de integración lingüística y cultural: Migración no hispanoparlante
; ; Sanhueza, Susan; MORALES, KARLA (2019)
Chile, a pesar de su historia migratoria, no ha generado programas educativos sustentados por políticas gubernamentales que propicien la adquisición de la variedad lingüística de la comunidad de acogida, por parte de la ...
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Modelización del impacto epidemiológico de la existencia de un grupo conductual preventivo
Cordova-Lepe, Fernando; ; (2018)
En lo que concierne a salud, la experiencia indica que en toda población humana existe un porcentaje de individuos que se comporta en forma consciente ante la presencia de enfermedades infectocontagiosas. Esto implica que ...
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Association of leisure time and occupational physical activity with obesity and cardiovascular risk factors in Chile
(2019)The aim of this study was to investigate the association between physical activity (PA), both occupational (OPA) and during leisure time (LTPA), with obesity and cardiovascular risk factors in Chilean adults. 5,157 ...
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Microscopic entropy of higher-dimensional nonminimally dressed Lifshitz black holes
(2019)In arbitrary dimension, we consider a theory described by the most general quadratic curvature corrections of Einstein gravity together with a self-interacting nonminimally coupled scalar field. This theory is shown to ...
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Estudio cualitativo en torno a la aplicación del modelo de autoevaluación asistida basado en el uso de plataformas digitales, en un curso de pedagogía
Rioseco, Marcelo; (2019)
Se presenta una propuesta de evaluación educativa denominada modelo de autoevaluación asistida, basado en el uso de plataformas digitales. Así mismo, se describe la valoración que los estudiantes de un curso de pre-grado ...
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A simultaneous blow-up problem arising in tumor modeling
(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 ...