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Now showing items 76-95 of 13291
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A new vanilla species from Costa Rica closely related to V. planifolia (Orchidaceae)
(European Journal of Taxonomy, 2017-02-22)We describe a new vanilla species growing in sympatry with Vanilla planifolia Jacks. ex Andrews (Orchidaceae) in the province of Limón, Caribbean coast of Costa Rica. The morphology of the reproductive and vegetative organs ... -
A novel host-adapted strain of Salmonella Typhimurium causes renal disease in olive ridley turtles (Lepidochelys olivacea) in the Pacific
(Springer Nature, 2019-06-27)Salmonella spp. are frequently shed by wildlife including turtles, but S. enterica subsp. enterica serovar Typhimurium or lesions associated with Salmonella are rare in turtles. Between 1996 and 2016, we necropsied 127 ... -
A novel host-adapted strain of SalmonellaTyphimurium causes renal disease in olive ridley turtles (Lepidochelys olivacea) in the Pacifc
(Springer Nature, 2019-06)Salmonella spp. are frequently shed by wildlife including turtles, but S. enterica subsp. enterica serovar Typhimurium or lesions associated with Salmonella are rare in turtles. Between 1996 and 2016, we necropsied 127 ... -
A ojo de un mal cubero
(La República, 2019-05-28)Las noticias eran ya bastante grises y el panorama de crecimiento, desempleo, pobreza y exclusión social de este 2019 nos mostraban un panorama desalentador. Sin embargo, como buen tecnócrata y fiel a su trayectoria liberal ... -
A participatory assessment of ecosystem services and human wellbeing in Rural Costa Rica using Photo-Voice
(Springer, 2012-03-09)Human well-being is intricately connected to ecosystem services. A keystone contribution to the ecosystem service literature has been the Millennium Ecosystem Assessment, MA, (Ecosystems and human well-being: a framework ... -
A pilot field evaluation on heat stress in sugarcane workers in Costa Rica: What to do next?
(Universidad Nacional, Costa Rica, 2009)Climate change is producing major impacts including increasing temperatures in tropical countries, like Costa Rica, where the sugarcane industry employs thousands of workers who are exposed to extreme heat. Objectives: ... -
A posteriori error analysis of a mixed virtual element method for a nonlinear Brinkman model of porous media flow
(Elsevier Ltd, 2020-06-25)In this paper we present an a posteriori error analysis of a mixed-VEM discretization for a nonlinear Brinkman model of porous media flow, which has been proposed by the authors in a previous work. Therein, the system ... -
A preliminary isotope-based evapotranspiration partitioningapproach for tropical Costa Rica
(John Wiley and Sons Ltd, 2021-07)Spatially and seasonally distributed information on transpiration (T) fluxes is limited in the tropics. Here, we applied a coupled isotope mass balance model to separate water fluxes of T and evapotranspiration (ET) from ... -
A preliminary market research about tambaqui (Colossoma macropomum) in Costa Rica
(Universidad Nacional (Costa Rica), 1996)En los meses de enero a julio de 1995 se desarrolló una prueba de mercado con el pez de agua dulce “Tambaqui” (Colossoma macropomum) en Costa Rica. Unos 1200 peces de aproximadamente 800g peso promedio se obtuvieron de la ... -
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 Priori and a Posteriori Error Analyses of an Augmented HDG Method for a Class of Quasi-Newtonian Stokes Flows
(Springer, 2016-12)In a recent work we developed a new hybridizable discontinuous Galerkin (HDG) method for a class of nonlinear Stokes models arising in quasi-Newtonian fluids. The approach there uses the incompressibility condition to ... -
A priori and a posteriori error analyses of an HDG method for the Brinkman problem
(Elsevier, 2018-01-15)In this paper we introduce and analyze a hybridizable discontinuous Galerkin (HDG) method for the linear Brinkman model of porous media flow in two and three dimensions and with non-homogeneous Dirichlet boundary conditions. ... -
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 Proposal for the Implementation of an English for Specific Purposes Specialization in a Master’s Degree Program in Second Languages and Cultures with Emphasis in English as a Foreign Language
(Universidad Nacional, Costa Rica, 2009-07)Costa Rica, país en vías de desarrollo, ha buscado su crecimiento atrayendo la inversión internacional. Recientemente, gran cantidad de compañías internacionales en Costa Rica buscan una fuerza laboral que sea no solamente ... -
A proposed solution to the species problem in velvet worm conservation (Onychophora)
(Universidad Estatal a Distancia, 2018)Onychophorans or velvet worm are the only phylum without extant marine species and the only invertebrates with a true placenta, but most species are rare and thus more likely to become extinct. A key obstacle for ... -
A propósito de "La voluntad radiante"
(Universidad Nacional, Costa Rica, 1995-07-01)El texto conjunto que escriben Steven Palmer e Iván Molina, "La Voluntad Radiante", es el libro que se analiza en este comentario. Este forma parte de una rica tradición dentro de la historia, la cual se debilitó por algún ... -
A propósito de "Una verdad incómoda"
(Centro de Estudios Generales, Universidad Nacional, Costa Rica, 2006-09)Einstein dijo una vez: "No se puede resolver un problema desde el mismo estado que lo provocó", Este feliz hallazgo del famoso físico, se aplica con especial pertinencia a los problemas ambientales, incluido, ... -
A propósito de la obra: Escritos de estética y semiótica del arte, de Jean Mukarovsky
(Universidad Nacional, Costa Rica, 1985-01) -
A propósito del cuento "Una extraña visita" de Joaquín García Monge.
(Universidad Nacional, Costa Rica. Centro de Estudios Generales, 1991)La visión e interpretación de la mujer en el hombre obedece a estructuras inconsientes sociales, y cuando alguien como en este caso Joaquín García Monge, plasma una obra de arte, aunque no lo quiera, si ésta es tal, deja ...
