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Quantitative genetic analysis of anxiety trait in bipolar disorder
(2017)
Background:Bipolar disorder type I (BPI) affects approximately 1% of the world population. Although geneticinfluences on bipolar disorder are well established, identification of genes that predispose to the illness has ...
First characterization of seagrasses at S´amara Bay, Pacific coast of Costa Rica
(2022)
Seagrasses are found at limited locations in the Eastern Tropical Pacific (ETP). Here, we provide the first characterization of seagrasses at Sámara Bay, on the northern Pacific coast of Costa Rica. Sampling was carried ...
A mathematical model with nonlinear relapse: conditions for a forward-backward bifurcation
(2023)
We constructed a Susceptible-Addicted-Reformed model and explored the dynamics of nonlinear relapse in the Reformed population. The transition from susceptible considered at-risk is modeled using a strictly decreasing ...
Diseño y caracterización de un enfriador de átomos de tipo “desacelerador Zeeman”
(2016)
Nosotros presentamos un método que utiliza simultáneamente dos modelos matemáticos, con el objetivo de optimizar el diseño de un desacelerador Zeeman, con miras a la implementación de átomos ultrafríos a la física del ...
Cálculo de la evaporación en Costa Rica mediante el método FAO-56
(2014-06)
Con el método FAO-56 se calcula la evapotranspiración de referencia para un cultivo de referencia “De una altura de 0,12m con una resistencia superficial de 70 s/m y un albedo de 0,23”. Posteriormente se calcula el coeficiente ...
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 ...
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. ...
Rotation-Based Mixed Formulations for an Elasticity-Poroelasticity Interface Problem
(2020)
In this paper we introduce a new formulation for the stationary poroelasticity equations written using the rotation vector and the total fluid-solid pressure as additional unknowns, and we also write an extension to the ...
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 ...