Listar Artículos Científicos por título
Mostrando publicaciones 1286-1305 de 3121
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Exploring the effects of a spanish vocabulary intervention to teach words in depth to second-grade students in Chile
; ; ; Lepe Martinez, Nancy Fabiola
; (2019)
This study explores the effects of a Spanish vocabulary intervention on the literacy outcomes of students at risk for vocabulary difficulties in Chile. We screened 2nd-grade students (N = 84) with a standardized Spanish ...
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Exploring the effects of competition and predation on the success of biological invasion through mathematical modeling
(2024)Biological invasions are a major cause of species extinction and biodiversity loss. Exotic predators are the type of introduced species that have the greatest negative impact, causing the extinction of hundreds of native ...
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Exploring the entropy complex networks with latent interaction
(2023)In the present work, we study the introduction of a latent interaction index, examining its impact on the formation and development of complex networks. This index takes into account both observed and unobserved heterogeneity ...
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Exploring the interplay between polyphenols and lysyl oxidase enzymes for maintaining extracellular matrix homeostasis
; ; ; Rojas, Armando (2023)
Collagen, the most abundant structural protein found in mammals, plays a vital role as a constituent of the extracellular matrix (ECM) that surrounds cells. Collagen fibrils are strengthened through the formation of ...
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Exploring the potential of emerging technologies as pedagogical tools for engineering education
(2023)The utilization of emerging technologies in the field of education has evolved into a valuable resource for fostering pedagogical advancements. Hence, the primary aim of this article is to assess and compare various ...
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Exploring the shear viscosity in four-dimensional planar black holes beyond general relativity
(2023)The well-known shear viscosity to entropy density ratio (η/s) cannot be computed when the black hole space-time has zero thermodynamic entropy. This is the case, for example, when general relativity in four dimensions is ...
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Exploring the spatial dynamics of endangered Nothofagus alesandrii and its relationship with geomorphometric variables and native tree species in a stand of its northern distribution
(2023)Nothofagus alessandrii is an endangered species with limited and fragmented distribution in the Maule coastal forest of central Chile. Understanding the factors and processes that influence the natural growth of this ...
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Exposición a organofosforados y desempeño cognitivo en escolares rurales chilenos: Un estudio exploratorio
(2011)Objetivo: evaluar la presencia de metabolitos organofosforados en la orina de escolares rurales y estimar la asociación con el desempeño cognitivo. Metodología: estudio exploratorio de diseño transversal. Se midió en 25 ...
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Exposición a plaguicidas en Chile y salud poblacional. Urgencia para la toma de decisiones
(2021)In the last 25 years, Chile has had an expanding role as an agro-export country in the global economy, with efficient rates of productivity in the region, based on the technological development of agriculture, with of large ...
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Exposición a plaguicidas organofosforados y polineuropatía periférica en trabajadores de la Región del Maule, Chile
(2018)Fundamentos. Los plaguicidas organofosforados (OP) se usan de manera masiva, por su bajo costo y por su baja persistencia, en el medio ambiente y su alta efectividad en el control de plagas de insectos, sin embargo, los ...
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Exposure to organophosphate (OP) pesticides and health conditions in agricultural and non-agricultural workers from Maule, Chile
(2017)The objective was to evaluate the characteristics of exposure to OP pesticides and health status in Chilean farm workers from the Maule Region. An occupational health questionnaire was administered in 207 agricultural and ...
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Extended batch cultures for poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) production by azotobacter vinelandii OP growing at different aeration rates
(2022)Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) is a polymer produced by Azotobacter vinelandii OP. In the bioreactor, PHBV production and its molar composition are affected by aeration rate. PHBV production by A. ...
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Extracción y análisis de pectinas a partir de arándano (Vaccinium corymbosum L.) cv. O'Neall
(2013)El arándano (Vacinium corymbosum) es un fruto muy apreciado debido a sus propiedades nutricionales, bajo valor energético y alto contenido de antioxidantes. Su remanente no exportable es destinado a la industria local para ...
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Extracellular matrix glycation and receptor for advanced glycation end-products activation: A missing piece in the puzzle of the association between diabetes and cancer
Rojas, Armando; ; ; (2018)
A growing body of epidemiologic evidence suggests that people with diabetes are at a significantly higher risk of many forms of cancer. However, the molecular mechanisms underlying this association are not fully understood. ...
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Extreme learning machine (ELM) for detection of hazardous near Earth objects
(2023)The protection of planet Earth, its inhabitants, and all living beings requires the identification of potentially dangerous objects, the simulation of impacts with Earth, and the mitigation of such threats. This research ...
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Extreme learning machine adapted to noise based on optimization algorithms
; Mora, Marco; ; (2020)
The extreme learning machine for neural networks of feedforward of a single hidden layer randomly assigns the weights of entry and analytically determines the weights the output by means the Moore-Penrose inverse, this ...
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Extreme learning machine for mass spectrometry data analysis
(2022)In this work, we introduce the use of a weighted extreme learning machine (ELM) to give an automated predictive value to mass spectrometry data. In specific, the data obtained with Matrix-Assisted Laser DesorptioMonization-Time ...
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Extreme learning machine-based receiver for multi-user massive MIMO systems
(2021)An extreme learning machine (ELM)-based receiver for multi-user massive MIMO systems is introduced. The proposed ELM combining method, defined in the complex plane, is designed to directly perform MIMO combining processing ...
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Extreme learning machines as equalizers on optical OFDM systems
(2023)Optical Fiber Radio (RoF) systems based on OFDM meet the needs of high transmission and reception speeds, as well as offering greater reliability in the system. These systems are exposed to various disturbances, such as ...