Artículos Científicos: Envíos recientes
Mostrando publicaciones 881-900 de 3486
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How do design changes and the perception of product creativity affect value?
(2020)A considerable part of the design literature focuses on creativity and puts forward means to enhance creativity. It is assumed that boosting creativity results in product improvements and benefits for many stakeholders, ...
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Concentraciones de oxígeno intermitentes tienen impacto en el desarrollo postnatal temprano de ratas Sprague-Dawley: efectos en CA1 del hipocampo
(2023)El periodo postnatal temprano se caracteriza por rápido crecimiento cerebral, posiblemente relacionado con variaciones del oxígeno tisular. Esto ha motivado el estudio de protocolos que suministran diferentes concentraciones ...
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La sociología de los problemas públicos
(2023)El siguiente trabajo propone problematizar los supuestos construccionistas que subyacen a la teorización e investigación sociológica de los problemas públicos. Para ello, revisamos los componentes onto-epistémicos del ...
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Model of approximation of a velocity, vorticity and pressure in an incompressible fluid
(2020)Generally, the temporary discretization of the Navier-Stokes equations despise the convective term, and consider a boundary ∂Ω = . This paper introduces a Galerkin scheme designed to solve by means of the finite element ...
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Analysis of a Galerkin scheme to avoid the locking phenomenon: solid-fluid interaction problem
(2020)Determining the response to the forces applied to an elastic solid containing an ideal fluid with constant density is essential in the engineering and biomedical fields. Therefore this paper aims to present and analyze a ...
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Convergence to the traveling wave solution of a biological-physical model through a differential equation with piecewise constant argument
(2020)Getting to know explicitly or approximately the traveling wave solutions of the diffusive delay logistic equation, commonly known as the delayed Kolmogorov-Petrovsky-Piscounov-Fisher equation, is of major importance for ...
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Polymorphisms −374 T/A and −429 T/C of the receptor for advanced glycation end-products (RAGE) and serum levels of RAGE (sRAGE) are not associated with metabolic syndrome
; ; ; ; Rojas, Armando
; (2023)
RAGE is a multi-ligand transmembrane glycoprotein that promotes biological signals associated with inflammatory responses and degenerative diseases. sRAGE is a soluble variant that has been proposed as an inhibitor of RAGE ...
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Coalition formation problems with externalities
(2023)We study coalition formation problems with externalities. We prove that, if expectations are not prudent a stable coalitions structure may fail to exist. Under prudent expectations a stable and efficient coalition structure ...
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A geometric morphometrics and genetics characterization of Vanessa carye in an extreme elevational gradient in the Chilean Altiplano
(2023)The Western Painted Lady butterfly, Vanessa carye (Hüber, 1812), in addition to pre-senting an extensive distribution in South America, has been observed flying in the Chilean Alti-plano from the coast to the highlands, ...
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Atypical origin of the left coronary artery originating from the right coronary sinus with interarterial course: a case report
(2023)Background A left coronary artery with atypical origin originating from the right coronary sinus with interarterial course was found in a 68-year-old man, who had been referred to the hemodynamics unit for ventricular ...
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A description of the epidemiological dynamics of Chagas disease via mathematical modeling
; ; Cancino-Faure, Beatriz; ; (2023)
Chagas disease is caused by the protozoan Trypanosoma cruzi, which parasitizes many mammals, including humans. Its vectors are blood-feeding hematophagous triatomine insects of different species, which vary according to ...
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Early regulation of corticosteroid receptor expression in rainbow trout (Oncorhynchus mykiss) gills is mediated by membrane-initiated cortisol signaling
(2023)Cortisol is a key stress-related hormone involved in the physiological adjustments of fish. In gills, cortisol contributes to acclimatization to changes in environmental salinity, promoting both ion uptake or salt excretion. ...
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Parallel methods for linear systems solution in extreme learning machines: an overview
; ; ; ; Mora, Marco; Barrientos, Ricardo (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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Impulsive simulation model for the analysis of allergy dynamics
(2020)This work approach the analysis of the problems caused by the incidence of allergic diseases, using an impulsive simulation model as a methodological approach, in this, the dynamics of the model is governed by two time ...
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Analysis of the atmospheric macro-physical using spatial methods
(2020)The central western area of Venezuela has an unequal distribution of precipitation. Due to its agricultural importance, is necessary to plan water accounting and this requires a evaluation of spatial and temporal variability ...
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A model for incompressible fluids using finite element methods for the Brinkman problem
(2020)The partial differential equations for fluid flow dynamics based on the Brinkman equations, written in terms of velocity-vorticity and pressure in three dimensions, are essential for predicting climate, ocean currents, ...
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Construction of a genetic decomposition: theoretical analysis of the concept of the value theorem medium
(2020)In this study, from a cognitive perspective, we present the structures necessary for a student to construct the concept of the mean value theorem. The theoretical framework used for this research is based on the ...
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The role of upwelling intermittence in the development of hypoxia and nitrogen loss over the Oregon shelf
(2020)Coastal upwelling regions represent less than 2% of the marine biosphere's volume. Nonetheless, local biogeochemical processes have a considerable impact on the structure and functioning of the global oceans. In this study ...
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Northern and central Chile still free of emerging flaviviruses in mosquitoes (Diptera: Culicidae)
Cancino-Faure, Beatriz; ; ; ; ; ; ; ; (2023)
Geographic isolation and strict control limits in border areas have kept Chile free from various pathogens, including Flavivirus. However, the scenario is changing mainly due to climate change, the reintroduction of more ...
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Comparative study of paper-and-pencil and electronic formats of the Snaith-Hamilton Pleasure Scale
(2020)The gold standard for measuring anhedonia is the Snaith-Hamilton Pleasure Scale (SHAPS). To date, there are no validated electronic versions of this questionnaire. We aim to study the equivalence between the traditional ...