Producción Académica: Envíos recientes
Mostrando publicaciones 2821-2840 de 3943
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The effect on the compressive strength of concrete produced by the incorporation of boiler-calcined biomass ash into sand from the Maule River, Chile
(2020)The pulp industry generates large amounts of wood biomass ash (WBA) as waste, which causes economic and environmental problems. However, WBA has pozzolanic and cementing properties that can complement cement in concrete ...
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Effect of freeze-thaw and wet-dry cycles on the mechanical and hydraulic characteristics of geothermal mortars
(2020)The appropriate performance of a vertical geothermal exchanger depends not only on the thermal properties of the elements that composed it, but also on the close contact between them to ensure the heat transfer. This contact ...
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Analysis of the carbonation in normal concrete with the addition of tire rubber aggregate
(2020)Tires are an industrial waste that has become a worldwide environmental problem. To minimize this effect, tire waste is used in construction as a concrete aggregate. Additionally, carbon dioxide in the atmosphere affects ...
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Effects on the compressive strength and thermal conductivity of mass concrete by the replacement of fine aggregate by mussel shell particulate
(2020)The behaviour of mussel shell particulate as fine aggregate for mass concrete has been analysed. The shells were washed and mechanically crushed to obtain a particle size similar to that of the natural aggregate (fine) to ...
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Evaluation of waste generation in a housing construction work to develop improvements in its final disposal
(2020)Construction is one of the productive sectors that generates the greatest environmental impact, on the one hand, there are high demands for raw materials and energy required for production, and on the other hand the large ...
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Assessing the relationship between autonomy support and student group cohesion across Ibero-American countries
; ; ; ; ; ; ; ; ; ; ; ; ; Vargas, Rodrigo
; ; ; ; ; ; ; ; (2020)
Teacher-endorsed supporting behaviors present themselves as key influencers of student adaptive academic and social functions. The objective of this paper was twofold. First, this study sought to test a model in which ...
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ABCB1/4 gallbladder cancer risk variants identified in India also show strong effects in Chileans
; ; ; ; ; ; ; ; ; ; Rojas, Armando; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; (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. ...
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Pensamiento crítico: concepto y su importancia en la educación en enfermería
(2019)El pensar es una capacidad inherente al ser humano y ha sido estudiado desde la antigüedad por los grandes pensadores griegos hasta la actualidad. En el ámbito de la enfermería el pensamiento crítico es fundamental para ...
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Gerontología: un mirada bibliométrica de las citaciones clásicas en web of science (1975-2018)
(2020)La gerontología es comprendida como un enfoque interdisciplinario que aborda el proceso de envejecimiento y vejez. El presente artículo caracteriza la evolución de la investigación en el campo gerontológico durante los ...
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Rama muscular hipertrófica de la arteria recurrente radial (Cuerda de Henry) en relación con el ramo profundo del nervio radial. Reporte de caso
(2020)La arteria recurrente radial nace en el extremo proximal de la arteria radial y desde ahí asciende oblicuamente para anastomosarse con la arteria colateral radial, entregando en ese trayecto una serie de ramas para los ...
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Neural dynamics of associative learning during human sleep
(2020)Recent evidence indicates that humans can learn entirely new information during sleep. To elucidate the neural dynamics underlying sleep-learning, we investigated brain activity during auditory–olfactory discriminatory ...
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Multiresolution speech enhancement based on proposed circular nested microphone array in combination with sub-band affine projection algorithm
(2020)Speech enhancement is one of the most important fields in audio and speech signal processing. The speech enhancement methods are divided into the single and multi-channel algorithms. The multi-channel methods increase the ...
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SARS-CoV-2-mediated inflammatory response in lungs: should we look at rage?
Rojas, Armando; ; (2020)
The novel coronavirus disease (COVID-19) pandemic is placing significant strains on health systems, scientific communities, essential public services, and economies all over the world. In this context, the world´s scientific ...
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Violencia carcelaria: la escuela y la posibilidad emancipadora
(2020)Este artículo discute dificultades y desafíos de la Escuela carcelaria en Chile, a partir de una investigación realizada en el Centro de Cumplimiento Penitenciario de Osorno, entre los años 2012 y 2017. La hipótesis sostiene ...
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Abordaje psicológico del COVID-19: una revisión narrativa de la experiencia latinoamericana
(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 ...
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Attention deficit hyperactivity disorder and its association with heavy metals in children from northern Chile
(2020)Introduction: Exposure to lead and arsenic has been associated with child behavior problems. In Arica, a northern city of Chile, the natural presence of arsenic in water has been registered. Also, the city has a history ...
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Efectos del tratamiento con quimioterapia y radioterapia concomitante sobre los volúmenes pulmonares en mujeres con cáncer de mama en Talca, Chile
(2020)Introducción. El cáncer de mama (CM) es la enfermedad crónica no transmisible más frecuente y letal en mujeres. La información disponible sobre el impacto de sus diversos tratamientos en el sistema respiratorio es ...
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Functional neuroanatomy of racial categorization from visual perception: a meta-analytic study
(2020)We effortlessly sort people into different racial groups from their visual appearance and implicitly generate racial bias affecting cognition and behavior. As these mental activities provide the proximate mechanisms for ...
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Desde una mirada global al contexto chileno: ¿qué factores han repercutido en el desarrollo de obesidad en Chile? (parte 1)
(2019)La obesidad es una enfermedad inflamatoria, crónica, recurrente, progresiva y de etiología multifactorial, que afecta a más 650 millones de personas en el mundo. La carga física, emocional y económica que genera la obesidad ...