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Mostrando publicaciones 2175-2194 de 3259
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La organización del conocimiento en el currículum. Un debate abierto
(2016)Este artículo se propone debatir la organización del conocimiento en el currículum, a propósito del artículo publicado en 1976 por Héctor Palma en torno a esta amplia, compleja y contingente problemática. En términos ...
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Organizational improvement through standardization of the innovation process in construction firms
(2012)The purpose of this article is to identify the drivers, success factors, benefits, and barriers to innovation in a medium size construction firm with a standardized innovation management system. The case study method is ...
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Organogenesis of plant tissues in colchicine allows selecting in field trial blueberry (Vaccinium spp. cv Duke) clones with commercial potential
(2024)Plants’ genetic improvement continues to be crucial for modern agriculture, while biotechnology can offer efficient tools that enhance the selection and recommendation processes of elite clones. This work established a ...
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Outplanting performance of three provenances of Quillaja saponaria Mol. established in a mediterranean drought-prone site and grown in different container size
(2020)In degraded environments with restricted seed availability, like those burned by wildfires in central Chile during 2017, the use of plant material from outside its area of origin for restoration purposes needs to be ...
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Oxidative conditions along the continental shelf of the Southeast Pacific during the last two millennia: a multiproxy interpretation of the oxygen minimum zone variability from sedimentary records
(2023)The oxygen minimum zone (OMZ) is an essential feature along the Pacific margin, extensively studied for its influence on benthic fauna, acquiring relevance in coastal zones due to its impact on aquaculture species, ...
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Oxide nanolitisation-induced melt iron extraction causes viscosity jumps and enhanced explosivity in silicic magma
(2024)Explosivity in erupting volcanoes is controlled by the degassing dynamics and the viscosity of the ascending magma in the conduit. Magma crystallisation enhances both heterogeneous bubble nucleation and increases in magma ...
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Oxygen minimum zone variability during the last 700 years in a coastal upwelling area of the Humboldt system (Mejillones, 23° S, Chile). A new approach from geochemical signature
(2021)Mejillones bay presents a permanent and shallow OMZ, whose upper boundary fluctuates between 30 m and 60 m water depth during a normal year. Under this condition, the bottom sediments preserve a geochemical signature of ...
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Pablo Neruda and Juan Marín’s diplomatic trip: some prose works on India
(2022)This paper analyses the representations of Indian culture in Pablo Neruda’s Confieso que he vivido (1974), and Juan Marín’s La India eterna (1956), both based on the Chilean intellectuals’ diplomatic trips to this country; ...
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Pain neuroscience education for patients with chronic pain: A scoping review from teaching–learning strategies, educational level, and cultural perspective
(2024)Objective (1) To identify the characteristics of PNE programs in terms of teaching-learning strategies, session modality, content delivery format, number of sessions, total minutes and instructional support material used ...
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Palatability and feeding preferences of Uresiphita maorialis (Lepidoptera: Crambidae) for three Sophora species
(2015)In a three-hour bioassay, we tested the palatability and feeding preferences of Uresiphita maorialis (kōwhai moth) for Sophora tetraptera, Sophora microphylla and Sophora prostrata. Palatability tests showed no differences ...
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Palm vein image quality assessment through natural scene and texture statistics
(2023)Palm vein biometrics has emerged as a highly secure and contactless biometric technology. However, various factors reduce the image quality during the acquisition process, limiting the biometric recognition performance, ...
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Palm vein modeling for generating synthetic images with biometric purposes: a geometrical approach
(2024)Palm vein-based biometric highlights its contactless acquisition, high precision, and user acceptance. However, the lack of publicly available databases with a large number of individuals challenges the continuous growth ...
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Pandemic grief in El Salvador: factors that predict dysfunctional grief due to a COVID-19 death among salvadoran adults
(2023)Thousands of people have died of COVID-19 in El Salvador. However, little is known about the mental health of those who are mourning the loss of a loved one to COVID-19. Therefore, the objective of this study was to examine ...
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Panorama de la economía social en Chile: La brecha entre definiciones formales y sustantivas
(2019)El presente artículo busca dimensionar y caracterizar el sector de la economía social en Chile al año 2015, adaptando la tipología propuesta por EESC/CIRIEC para Europa. A partir de la sistematización de datos cuantitativos ...
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Para una historia del viaje metropolitano
(2012)Tradicionalmente los historiadores han estudiado el movimiento de personas, bienes, servicio e información en la ciudad desde una perspectiva utilitaria y parcelada. Se han privilegiado enfoques por tipo transporte ...
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La paradoja de los sistemas de participación ciudadana y el despertar de las insurgencias en Chile
(2021)En 2019 la sociedad chilena atravesó una de las mayo-res crisis sociales y políticas de que se tenga memoria, lo que puso en evidencia los altos niveles de desigual-dad social y territorial y propició un proceso de profundos ...
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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 ...
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Parallel methods for linear systems solution in extreme learning machines: an overview
(2020)This paper aims to present an updated review of parallel algorithms for solving square and rectangular single and double precision matrix linear systems using multi-core central processing units and graphic processing ...
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Parallel training of a set of online sequential extreme learning machines
(2022)Size databases have constantly increased from advances in technology and the Internet, so processing this vast amount of information has been a great challenge. The neural network Extreme Learning Machine (ELM) have been ...