Repositorio UMAYOR: Envíos recientes
Mostrando ítems 661-680 de 7954
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Burnout levels and associated factors among Intensive Care Unit workers during the first wave of the COVID-19 pandemic in Chile: A cross-sectional study
(Medwave Estudios Limitada, 2023-09-27)Introduction: The COVID-19 pandemic resulted in an unpredictable healthcare crisis with a high psychological burden on healthcare workers. Objective: To evaluate burnout levels and their associated demographics and ... -
Effects of composition and structure variables of urban trees in the reduction of heat islands; case study, Temuco city, Chile
(Elsevier BV, 2023-11)The Urban Heat Island (UHI) effect is a growing problem that has a critical impact on human thermal comfort and public health. Some strategies to reduce the UHI effect are increasing the amount of urban forest. This research ... -
Nonlinear optomechanical resonance entering a self-organized energy transfer pattern
(Chaos, Solitons and Fractals, 2023-08)The energy transfer between different subsystems or different vibration modes is always one of the most interested problems in the study of the resonance phenomena in coupled nonlinear dynamical systems. With an optomechanical ... -
Depth Completion Using Infinity Laplacian Based on Steering Positive Definite Metric Operator Plus Convolutional Stage
(Springer, Singapore, 2023-05-03)Depth completion is an important task for autonomous vehicles, video games, and many others applications. Frequently depth maps present holes or data with low confidence level. This paper is devoted to the guided depth ... -
Impact of internal structure on aggregate collisions
(Oxford University Press, 2023-09-18)Granular-mechanics simulations are used to study collisions between granular aggregates. We compare the collision outcomes for three different types of aggregate: (i) aggregates constructed by a ballistic particle–cluster ... -
Senescent Schwann cells induced by aging and chronic denervation impair axonal regeneration following peripheral nerve injury
(Wiley-Blackwell, 2023-12-07)Following peripheral nerve injury, successful axonal growth and functional recovery require Schwann cell (SC) reprogramming into a reparative phenotype, a process dependent upon c-Jun transcription factor activation. ... -
Poly(ethylene imine)-chitosan carbon dots: study of its physical-chemical properties and biological in vitro performance
(Springer New York, 2023-10-17)Carbon dots (CDs) have been quickly extended for nanomedicine uses because of their multiple applications, such as bioimaging, sensors, and drug delivery. However, the interest in increasing their photoluminescence properties ... -
Mapeo cienciométrico de las Neurociencias de la Educación: miradas para la formación de docentes
(Universidad Austral de Chile, 2023)La integración del conocimiento neurocientífico en la formación de docentes constituye un desafío actual en la actualización de las mallas curriculares. De ahí la pertinencia de estudios cienciométricos para conocer el ... -
Tipología funcional para áreas naturales protegidas: ruralización y urbanización en la zona central de Chile
(Universidad Nacional de Colombia, 2023-01-01)Las principales transformaciones territoriales en el valle central de Chile están asociadas a los procesos de urbanización, dejando susceptible las áreas de importancia ambiental. Este trabajo tiene como objetivo determinar ... -
Validación de la Escala de Liderazgo Destructivo y del Cuestionario de Conductas Negativas-Revisado en Chile
(Pontificia Universidad Católica de Chile, 2023)La violencia laboral y los liderazgos destructivos acaparan un alto interés en el mundo, sin embargo, en Chile no existen procesos de validación para los instrumentos más utilizados globalmente. La evidencia muestra que ... -
Monitoreo permanente de bosques naturales en las áreas silvestres protegidas de Chile: una necesidad urgente
(Universidad Austral de Chile, 2023-04)La dinámica de los bosques se refiere al cambio en su estructura y composición en el tiempo, gobernado por su crecimiento, el cual es resultado de los procesos de incremento en tamaño, mortalidad de árboles y reclutamiento ... -
Cardiopulmonary- versus neuromuscular-based high-intensity interval training during a pre-season in youth female basketball players
(University School of Physical Education in Wroclaw, 2023)Purpose. This study compares the effects of 6 weeks of pre-season cardiopulmonary- vs. neuromuscular-based high-intensity interval training (HIIT) in female basketball players’ physical fitness. Methods. Overall, 16 female ... -
Bayesian sampling with BeAtlas, a grid of synthetic Be star spectra I. Recovering the fundamental parameters of α Eri and β CMi
(Oxford University Press, 2023-09)Classical B emission (Be) stars are fast rotating, near-main-sequence B-type stars. The rotation and the presence of circumstellar discs profoundly modify the observables of active Be stars. Our goal is to infer stellar ... -
Design Characteristics, Visual Qualities, and Walking Behavior in an Urban Park Setting
(Multidisciplinary Digital Publishing Institute (MDPI), 2023-07)The design characteristics of urban parks’ pathways are important in facilitating leisure walking and maintaining the minimum rate of physical activity, thus improving public health. This study examined and explored the ... -
La reforma curricular de 3° y 4° medio en Chile
(Universidad Austral de Chile. Facultad de Filosofía y Humanidades, 2023)La entrada en vigencia de la Ley General de Educación en 2009 implicó la renovación curricular en todos los niveles del sistema escolar chileno, dejando para el final 3° y 4° medio. El presente trabajo describe este proceso ... -
Hipertensión arterial en pediatría: rol de la monitorización ambulatoria de presión arterial (MAPA)
(Sociedad Chilena de Pediatría, 2023-10)La Hipertensión Arterial (HTA) es un factor de riesgo relevante de enfermedad cardiovascular. La prevalencia en pediatría ha ido en aumento, asociado al incremento de sobrepeso y obesidad infantil, entre otros factores. ... -
Clinical and pulmonary function analysis in long-COVID revealed that long-term pulmonary dysfunction is associated with vascular inflammation pathways and metabolic syndrome
(Frontiers Media S.A., 2023-10)Introduction: Long-term pulmonary dysfunction (L-TPD) is one of the most critical manifestations of long-COVID. This lung affection has been associated with disease severity during the acute phase and the presence of ... -
Transcriptional Signatures and Network-Based Approaches Identified Master Regulators Transcription Factors Involved in Experimental Periodontitis Pathogenesis
(Molecular Diversity Preservation International, 2023-10)Periodontitis is a chronic inflammatory disease characterized by the progressive and irreversible destruction of the periodontium. Its aetiopathogenesis lies in the constant challenge of the dysbiotic biofilm, which triggers ... -
Estudio radiológico no invasivo del sistema urinario en el siglo XXI
(Sociedad Chilena de Radiología, 2023-09)En este artículo se revisará brevemente el desarrollo y el estado actual de la radiología del sistema genitourinario, examinando individualmente los métodos de imagen disponibles para tal fin.