Repositorio UMAYOR: Envíos recientes
Mostrando ítems 781-800 de 7669
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Evaluar en educación inicial: una mirada desde el self del educador y la identidad profesional
(Chile. Universidad Mayor, 2023-12)El ensayo muestra cómo el proceso de evolución del concepto de evaluación en el tiempo va mostrando una nueva cara de la evaluación, que hace cien años se centraba en medir el logro de aprendizajes, y que tras el estudio ... -
BIOVERA-Tree: tree diversity, community composition, forest structure and functional traits along gradients of forest-use intensity and elevation in Veracruz, Mexico
(PENSOFT PUBLISHERS, 2021-09-09)Here, we describe BIOVERA-Tree, a database on tree diversity, community composition, forest structure and functional traits collected in 120 forest plots, distributed along an extensive elevational gradient in Veracruz ... -
IRE1α RIDD activity induced under ER stress drives neuronal death by the degradation of 14-3-3 θ mRNA in cortical neurons during glucose deprivation
(SPRINGER NATURE, 2021-06-03)Altered protein homeostasis is associated with neurodegenerative diseases and acute brain injury induced under energy depletion conditions such as ischemia. The accumulation of damaged or unfolded proteins triggers the ... -
Radiografía Panorámica: Una Herramienta Invaluable para el Estudio del Componente Óseo y Dental del Territorio Maxilofacial
(SOC CHILENA ANATOMIA, 2021-01)La radiografía panorámica es probablemente el examen de rutina más solicitado por los dentistas en el mundo. Entre sus ventajas están su bajo costo, rapidez y mayor seguridad debido a que los formatos digitales han permitido ... -
Effect of the monomers ratio in the electrosynthesis of poly (aniline-co-o-methoxyaniline) on steel corrosion protection
(SOC CHILENA QUIMICA, 2020-12)In this work, the synthesis of poly(aniline-co-o-methoxyaniline) was carried out on AISI 304 steel, by voltammetric or potentiostatic method. Electropolymerization was achieved from different ratios of 0.4 mol.L-1 ... -
Cultura, folclore y tradición: reflexiones en torno a la vida y obra de Manuel Dannemann Rothstein (Santiago, 1932-2021)
(UNIV CHILE, FACULTY ARTS, 2021-06)Filólogo, etnólogo y etnomusicólogo, Manuel Teodoro Dannemann Rothstein es uno de los investigadores más importantes de la cultura tradicional chilena del siglo XX. Realizó sus estudios primarios y secundarios en el Liceo ... -
Composición corporal y proporcionalidad en futbolistas chilenos: diferencias entre categorías juveniles y campeones profesionales
(SOC CHILENA ANATOMIA, 2021-01)El fútbol es el deporte más popular del mundo, por lo que las variables que benefician el rendimiento y el éxito deportivo generan un gran interés y ocupan un rol esencial en la preparación de futbolistas. Por lo tanto, ... -
Effects of a Concurrent Training Protocol on Body Composition and Phase Angle in Physically Inactive Young Women: A Quasi-Experimental Intervention Study
(SOC CHILENA ANATOMIA, 2021-12-29)To determine the effect of a concurrent training program on body composition and phase angle in young women. 38 women (19.26 +/- 1.86 years) participated in the study, and were assigned according to convenience sampling ... -
Effects of high-intensity interval training and plyometric exercise on the physical fitness of junior male handball players
(VERDUCI PUBLISHER, 2021-12-30)OBJECTIVE: This study analyzed the effects of high intensity interval training (HIIT) combined with plyometric exercise on the physical fitness of junior male handball players. PATIENTS AND METHODS: Subjects (age similar ... -
Methyl Jasmonate Applications in Viticulture: A Tool to Increase the Content of Flavonoids and Stilbenes in Grapes and Wines
(MDPI, 2021-06)Recently, the interest in methyl jasmonate (MeJ) has increased in viticulture due to its effects on the synthesis of phenolic secondary metabolites in grapes, especially of anthocyanins, flavonols, and stilbenes derivatives, ... -
Development of a Multiplex PCR Assay for Genotyping the Fish Pathogen Piscirickettsia salmonis Through Comparative Genomics
(FRONTIERS MEDIA SA, 2021-07-11)Piscirickettsia salmonis is a bacterial pathogen that severely impact the aquaculture in several countries as Canada, Scotland, Ireland, Norway, and Chile. It provokes Piscirickettsiosis outbreaks in the marine phase of ... -
A global metagenomic map of urban microbiomes and antimicrobial resistance
(CELL PRESS, 2021-06-24)We present a global atlas of 4,728 metagenomic samples from mass-transit systems in 60 cities over 3 years, representing the first systematic, worldwide catalog of the urban microbial ecosystem. This atlas provides an ... -
Mitostasis, Calcium and Free Radicals in Health, Aging and Neurodegeneration
(MDPI, 2021-07)Mitochondria play key roles in ATP supply, calcium homeostasis, redox balance control and apoptosis, which in neurons are fundamental for neurotransmission and to allow synaptic plasticity. Their functional integrity is ... -
A global horizon scan of the future impacts of robotics and autonomous systems on urban ecosystems
(NATURE PORTFOLIO, 2021-01)The future challenges and potential opportunities of robotics and autonomous systems in urban ecosystems, and how they may impact biodiversity, are explored and prioritized via a global horizon scan of 170 experts. Technology ... -
Decoupling of biotic and abiotic patterns in a coastal area affected by chronic metal micronutrients disturbances
(PERGAMON-ELSEVIER SCIENCE LTD, 2021-05)Coastal systems are highly productive areas for primary productivity and ecosystem services and host a large number of human activities. Since industrialization, metal micronutrients in these regions have increased. ... -
Plant ecological genomics at the limits of life in the Atacama Desert
(NATL ACAD SCIENCES, 2021-11-16)The Atacama Desert in Chile-hyperarid and with high-ultraviolet irradiance levels-is one of the harshest environments on Earth. Yet, dozens of species grow there, including Atacama-endemic plants. Herein, we establish the ... -
Socially unstable conditions experienced during development prime female Octodon degus to shape the phenotype of their own offspring
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2021-08)Because residents and immigrants from group living species may experience fitness costs associated with permanent changes in group membership, we examined the hypothesis that females experiencing socially unstable or ... -
Socioecological conditions predict degu social instability and provide limited cues to forecast subsequent breeding conditions
(SPRINGER, 2021-05)Permanent changes in group membership may result in detrimental fitness effects on both group residents and immigrants. Factors associated with this form of social instability are rarely documented. We used a 15-year dataset ... -
Effect of intersystem crossing rates and optical illumination on the polarization of nuclear spins close to nitrogen-vacancy centers
(AMER PHYSICAL SOC, 2021-03-27)Several efforts have been made to polarize the nearby nuclear environment of nitrogen-vacancy (NV) centers for quantum metrology and quantum information applications. Different methods showed different nuclear spin ...