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Sweet as Vanilla hartii: Evidence for a nectar-rewarding pollination mechanism in Vanilla (Orchidaceae) flowers
(2023-05-01)
Little is known about the pollination mechanisms of species belonging to the genus Vanilla (Orchidaceae). Both autonomous self-pollination and animal-mediated pollination mechanisms seem to exist amongst the Vanilla species, ...
Lyapunov exponents of probability distributions with non-compact support
(2020)
A recent result of Bocker–Viana asserts that the Lyapunov exponents of compactly supported probability distributions in GL(2, R) depend continuously on the distribution. We investigate the general, possibly concompact ...
Modelos estadísticos para la interacción océano-atmósfera
(2020)
La presente investigación tiene como objetivo modelar la interacción del océano -atmósfera
utilizando la relación entre la Oscilación del Sur y los eventos El Niño -La Niña como un
sistema de ...
Fishes from the Tusubres River basin, Pacific coast, Costa Rica: checklist, identification key and photographic album
(2015-05)
A checklist of the fishes of the Tusubres River basin, Pacific coast of Costa Rica, compiled from field and museum surveys is herein presented. A total of 54 species, representing 47 genera and 27 families, were
recorded. ...
Programa y resúmenes: 5° Congreso Geológico UCR-2021
(2021)
El Congreso Geológico de la Universidad de Costa Rica llega a su quinto evento consecutivo desde el 2017 y con cada año que se celebra, se refuerza la necesidad de este claustro académico, en el cual la comunidad ...
The Hubble Constant and the Deceleration Parameter in Anisotropic Cosmological Spaces of Petrov type D
(2016-11)
In this paper the Hubble parameter and the deceleration parameter are analyzed for a group of anisotropic homogeneous solutions of the Petrov type-D. It is obtained that for the said set of solutions can be constructed a ...
Monte Carlo dosimetry of a realistic multicellular model of follicular lymphoma in a context of radioimmunotherapy
(2020)
Purpose
Small-scale dosimetry studies generally consider an artificial environment where the tumors are spherical and the radionuclides are homogeneously biodistributed. However, tumor shapes are irregular and radiopharmaceutical ...
Cambios climáticos proyectados de modelos CMIP5 en La Cruz, Guanacaste, Costa Rica
Projected Climate Changes of CMIP5 models in La Cruz, Guanacaste, Costa Rica
(2021)
Introducción: La Cruz está localizada en el noroeste de
Costa Rica, y está caracterizada por una estación seca
bien definida y un clima tropical seco. Este cantón en los
últimos 45 años ha reportado impactos de eventos ...
Validation of a methodology by LC-MS/MS for the determination of triazine, triazole and organophosphate pesticide residues in biopurification systems
(2020)
Biopurification systems are useful in the management of pesticide residues and provide an option to dispose wastewaters of agricultural origin derived from pesticide application practices. The analysis of pesticide residues ...
Costa Rica, land of endless orchids
(2013-07)
With almost 1,600 reported species (Karremans et al. 2012), Costa Rica has one of the richest orchid floras in tropical America, currently surpassed in total species number only by Brazil, Colombia, Ecuador and Peru (Govaerts ...