Browsing Facultad de Ciencias Exactas y Naturales by Title
Now showing items 1-20 of 272
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32. Catalogo 2.0. de recursos para la alfabetización en competencias digitales del profesorado de la Escuela de Bibliotecología y Ciencias de la Información
(2016)Proyecto de investigación cuyo fin es desarrollar un catálogo 2.0 de recursos para la alfabetización digital en competencias digitales del profesorado de la Escuela de Bibliotecología y Ciencias de la Información (EBCI). ... -
33. Comunidades de aprendientes en entornos virtuales: una alternativa de educación sin distancias en el marco del Paradigma Emergente
(2016)La presente investigación cumple con el objetivo de exponer una alternativa de construcción de entornos virtuales de aprendizaje (EVA) bajo los lineamientos del Paradigma Emergente. A partir de un proceso de investigación ... -
A checklist of the amphibians and reptiles of Río Macho Biological Station, Provincia de Cartago, Costa Rica
(Check List vo.11 no.6 article 1784 1-10 2015, 2015-11-02)We provide a checklist of the amphibians and reptiles of Río Macho Biological Station (RMBS), Costa Rica. During a period of a year (2012–2013) we conducted visual and acoustic surveys in a natural mature forest plot (>50 ... -
A Collaborative Effort Between Caribbean States for Tsunami Numerical Modeling: Case Study CaribeWave15
(Pure and Applied Geophysics vol.175 no.2 1405-1428 2017, 2017)Historical records have shown that tsunami have affected the Caribbean region in the past. However infrequent, recent studies have demonstrated that they pose a latent hazard for countries within this basin. The Hazard ... -
A dynamic simulation model for the blooming of Oscillatoria agardhii in a monomictic lake
(Elsevier, 1995-01-15)The occurrence of phytoplankton blooms is a common problem in water bodies. The quantitative description of the algal population growth is of primary importance to understand the mechanisms which lead to these phytoplankton ... -
A language and a physical organization technique for summary tables
(ACM SIGMOD Record, 1985-05-01)A summary table IS a tabular representation of summary data, and is a useful data structure for statistical databases Priventive summary tables are basic building blocks of summmy tables, and can be represented as relations ... -
A mixed virtual element method for the Brinkman problem
(Mathematical Models and Methods in Applied Sciences vol.27 no.4 707-743 2017, 2017)In this paper, we introduce and analyze a mixed virtual element method (mixed-VEM) for the two-dimensional Brinkman model of porous media flow with non-homogeneous Dirichlet boundary conditions. More precisely, we employ ... -
A priori and a posteriori error analyses of a pseudostress-based mixed formulation for linear elasticity
(Computers and Mathematics with Applications vol.71 no.2 585-614 2016, 2016-01-02)In this paper we present the a priori and a posteriori error analyses of a non-standard mixed finite element method for the linear elasticity problem with non-homogeneous Dirichlet boundary conditions. More precisely, the ... -
A proposal for implementing PBL in programming courses
(XL Latin American Computing Conference, CLEI 2014, 2014)In the search of teaching strategies more consistent with the current needs of the industry and with the new university pedagogical model, an action research project was carried in the programming courses of the study ... -
A simple method for short-term storage and transportation of spermatophores of Pacific white shrimp (Litopenaeus vannamei)
(Hidrobiológica vol.26 no.1 9-14 2016, 2016)The development of a shipping method for spermatophores of the white shrimp Litopenaeus vannamei would open new opportunities for sharing and improving genetic resources of shrimp worldwide. Seventy spermatophores were ... -
Abelian covers of alternating groups
(Archiv der Mathematik 107 135-150, 2016-07-07)Let G = A n , a finite alternating group. We study the commuting graph of G and establish, for all possible values of n barring 13, 14, 17, and 19 whether or not the independence number is equal to the clique-covering number. -
Amenaza de contaminación del agua subterránea en el sector norte del acuífero Barva, Heredia, Costa Rica
(2014-11)Most of the water for human consumption and the development of economic activities in the Central Valley of Costa Rica is supplied by the aquifers located in this region. Nevertheless, many of these activities are located ... -
Analysis of the HDG method for the stokes–darcy coupling
(Numerical Methods for Partial Differential Equations, 2017-02-03)In this article, we introduce and analyze a hybridizable discontinuous Galerkin (HDG) method for numerically solving the coupling of fluid flow with porous media flow. Flows are governed by the Stokes and Darcy equations, ... -
Analyzing a Five-year Failure Record of a Leadership-class Supercomputer
(Institute of Electrical and Electronics Engineers, Incorporated (IEEE), 2019-10-18)Extreme-scale computing systems are required to solve some of the grand challenges in science and technology. From astrophysics to molecular biology, supercomputers are an essential tool to accelerate scientific discovery. ... -
Análisis de Registros de Tsunamis anteriores a 1969 observados en la estación de Puntarenas
(IV Congreso Nacional de Gestión del Riesgo y Adaptación al Cambio Climático, Heredia, 10 y 11 de octubre 2018, 2018)Los mareógrafos de Puntarenas, Quepos y Limón fueron instalados en la década de 1940 como una colaboración entre el Instituto Geográfico Nacional (IGN) y la Agencia Nacional Atmosférica y Oceanográfica de los Estados Unidos ... -
Análisis del estado de la vegetación ribereña de la Microcuenca del Río Burío-Quebrada Seca, Heredia, Costa Rica mediante la aplicación de los Índices Calidad del Bosque de Riberas (QBR) y Calidad del Bosque de Riberas modificado (QBRm)
(Universidad Nacional, Costa Rica, 2011)Determina mediante la aplicación del índice de Calidad de Riberas (QBR) y del índice de Calidad de Riberas modificado (QBRm), el estado de la vegetación de ribera en la Microcuenca del Río Burío-Quebrada Seca, como ... -
ANÁLISIS DEL PAPEL DOCENTE EN EL DESARROLLO DEL TEMA “LA MONEDA” EN UN AULA DE EDUCACIÓN PRIMARIA
(Reunión Latinoamericana de Educación Matemática (RELME 32), 2018-07-05)Dos de los elementos más importantes presentes en los Programas de Estudio de Matemática en Costa Rica ha sido la inclusión de situaciones problema contextualizadas a la vida cotidiana y la manera de organizar una clase. ...
