Artículos Científicos: Envíos recientes
Mostrando publicaciones 2021-2040 de 3929
-
Study of type-III intermittency in the Landau–Lifshitz-Gilbert equation
; ; ; ; ; Barrientos, Ricardo
; (2021)
We have studied a route of chaos in the dissipative Landau–Lifshitz-Gilbert equation representing the magnetization dynamics of an anisotropic nanoparticle subjected to a time-variant magnetic field. This equation presents ...
-
Broadband dynamics rather than frequency-specific rhythms underlie prediction error in the primate auditory cortex
(2021)Detection of statistical irregularities, measured as a prediction error response, is fundamental to the perceptual monitoring of the environment. We studied whether prediction error response is associated with neural ...
-
Relación entre actividad física y calidad de vida en adolescentes durante la pandemia por la covid-19
(2021)Introducción: La pandemia por la COVID-19 ha generado distanciamiento social, lo cual provoca disminución de la práctica de actividad física y menor calidad de vida relacionada con la salud. Objetivo: Relacionar el nivel ...
-
Influencia del polimorfismo de la enzima convertidora de angiotensina 2 (rs1978124) en la respuesta hemodinámica posterior a la prueba aeróbica submáxima en jóvenes estudiantes chilenos sedentarios
(2021)Background: Angiotensin-converting enzyme 2 (ACE2) has a protective role in the regulation of blood pressure. Aim: To evaluate the influence of ACE2 rs1978124 gene polymorphism on the hemodynamic response after a six-minute ...
-
Association between lower trapezius isometric strength and Y-balance test upper quarter performance in college volleyball players
(2021)Context: Knowing the possible association between the isometric strength of the shoulder rotators, scapular muscles, and the Y-balance test upper quarter (YBT-UQ) performance could help identify which indicators of shoulder ...
-
Errores matemáticos persistentes al ingresar en la formación inicial de profesores de matemática: el caso de la linealidad
(2022)El objetivo de esta investigación fue identificar errores persistentes de conceptos y procedimientos matemáticos, en particular, la inadecuada aplicación del concepto de linealidad, e implementar situaciones de aprendizaje ...
-
Variables que predicen la participación en los dispositivos de apoyos académicos institucionales (AAI)
(2021)Introducción: Ante la necesidad de focalizar los esfuerzos para que los estudiantes que más lo requieran puedan ser parte de los apoyos académicos que brindan las instituciones universitarias, se realizó un estudio para ...
-
Football society players over the age of 55: how stressful can a match be?
(2021)This study aimed at assessing the physical activity level, heart rate and the salivary cortisol level of football society players. The sample consisted of 19 male masters football players with an average age of 56.7 ± 3.9 ...
-
Disminución de la funcionalidad de miembro superior y bajo nivel de actividad física en supervivientes de cáncer de mama: un estudio de caso-control
(2022)El presente estudio tiene como objetivo evaluar la funcionalidad de miembro superior, síntomas de fatiga y nivel de actividad física en mujeres post operatorio de cáncer de mama, grupo PO, en comparación a un grupo control ...
-
Physicochemical and computational analysis of the melamine resin derivative for the glyphosate absorption from water using Langmuir-type model
(2022)Conventional pesticides are biosynthetic chemicals that are effectively used for the control of weeds, diseases, and pests worldwide. Among them, glyphosate, one of the most commonly used broad-spectrum herbicides, might ...
-
Validation of an NGS panel designed for detection of actionable mutations in tumors common in Latin America
(2021)Next-generation sequencing (NGS) is progressively being used in clinical practice. However, several barriers preclude using this technology for precision oncology in most Latin American countries. To overcome some of these ...
-
Paradojas de la evaluación en el contexto de los modelos basados en competencias. La voz de los estudiantes
(2021)Este artículo problematiza las principales paradojas que enfrenta la evaluación del aprendizaje en relación a los modelos basados en competencia en el contexto universitario. Mediante una aproximación cualitativa se ...
-
Mathematical modeling of fruit trees' growth under scarce watering
; ; Carrasco-Benavides, Marcos (2021)
As a consequence of the Global Warming, the decrease in water resources is a problem that affects the agricultural systems worldwide. In particular, the Global Warming has produced a sustained decrease in precipitation in ...
-
Actividades con tablas estadísticas en los libros de texto de matemática para la enseñanza rural multigrado chilena
(2021)El presente estudio tiene por objetivo analizar las actividades sobre tablas estadísticas en libros de texto de matemática chilenos que el Ministerio de Educación entrega a las escuelas rurales . Los principales fundamentos ...
-
Effects of a high-intensity interval training program on body composition and physical fitness in female field hockey players
(2021)High-intensity interval training (HIIT) is zed by achieving similar effects to conventional physical and physiological training in a shorter time, allowing its dissemination in the sports field. The present study was aimed ...
-
Simulation model for Hashimoto autoimmune thyroiditis disease
(2021)Hashimoto thyroiditis (HT) is a pathology that often causes a gradual thyroid insufficiency in affected patients due to the autoimmune destruction of this gland. The cellular immune response mediated by T helper lymphocytes ...
-
Family profiles based on family life satisfaction in dual-earner households with adolescent children in Chile
(2022)Research has stressed the importance of the family domain for the individual's well-being, but the heterogeneity/homogeneity of satisfaction with family life between and within families have not previously assessed. This ...
-
Tensiones de la gobernanza comunitaria de servicios sanitarios rurales en territorios periurbanos (Chile)
(2021)A diferencia del modelo de concesión privada aplicado en zonas urbanas, los servicios sanitarios de las zonas rurales en Chile son gestionados por comités o cooperativas de agua potable rural (APR), bajo un modelo de ...
-
Improving analysis in SPMD applications for performance prediction
(2021)The analysis of parallel scientific applications allows us to know the details of their behavior. One way of obtaining information is through performance tools. One such tool is PAS2P, which is based on parallel application ...
-
Peri-urban territories and rural water community governance in Chile
(2022)Purpose: Rural drinking water services in Chile are managed by Rural Drinking Water Associations (RDWAs) with a community governance model. However, urban growth and a neoliberal institutional setting tend to favor ...