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A propósito de los apagones
(2009-12-10)
Mérida 2009, primer paso para un programa de ciudades intermedias en Venezuela
(2009-11-18)
Venezuela, en un siglo, a medida que aumentaba la población, se urbanizó aceleradamente (del 20% de población urbana en 1900 al 90% en el 2000), derivando de ello enormes problemas socio ambientales. Se plantea a partir ...
Un vistazo al uso de la Web 2.0 como recurso para la enseñanza en la educación universitaria, desde la experiencia en cursos de pregrado y postgrado.
(2009-11-14)
En la actualidad, el uso de Internet y sus servicios se ha convertido en una necesidad que no puede dejarse a un lado en los procesos de enseñanza aprendizaje en la educación universitaria. Especialmente cuando nos referimos ...
Leaf gas exchange in canopy species of a Venezuelan cloud forest
(Biotropica 41(6): 659-664, 2009-11)
Tropical cloud forests are considered humid ecosystems with frequent cloud cover down to the ground surface. However, seasonal variation in precipitation may induce
short-term water stress. For canopy leaves, this water ...
Coupling soil water and shoot dynamics in three grass species: A spatial stochastic model on water competition in Neotropical savanna
(Ecological Modelling 220: 2734 - 2743, 2009-10-24)
Savannas are ecosystems known for their high environmental and economic value. They cover at least 20% of the global land surface and, in some cases, can act as a boundary between tropical rainforest and deserts.Water is ...
LAGOvirtual a collaborative environment for the large aperture GRB observatory
(2009-10-20)
We present the LAGOVirtual Project: an ongoing project to develop platform to collaborate in the Large Aperture GRB Observatory (LAGO). This continental-wide observatory is devised to detect high energy (around 100 GeV) ...
GridChoque: a grid environment to experiment on spherically symmetric general relativistic radiation hydrodynamics
(2009-10-20)
This paper presents a Grid application, GridChoque: a distributed, and a grid based, environment devised to explore the general relativistic spherically radiative stellar collapse using several tools of calculus and ...
Low temperature resistance in saplings and ramets of Polylepis sericea in the Venezuelan Andes
(Acta Oecologica 35(5): 610–613, 2009-10)
The frequent occurrence of all year-round below zero temperatures in tropical high mountains constitutes a most stressful climatic factor that plants have to confront. Polylepis forests are found well above
the continuous ...
Interception of water by pastures of Pennisetum clandestinum Hochst. ex Chiov. and Melinis minutiflora Beauv
(Agricultural and Forest Meteorology 149: 1616-1620, 2009-10)
The conversion of montane cloud forests into pastures for grazing cattle is the main cause of important impacts on rivers and streams in most of the Andes. In order to evaluate the effects of vegetation changes we need to ...