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Voici les éléments 314-333 de 1111
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Freezing tolerance in grasses along an altitudinal gradient in the Venezuelan Andes
(SABER ULA, 2006-12-07)Freezing tolerance in grasses along an altitudinal gradient in the Venezuelan Andes (Márquez, Edjuly J., Rada, Fermín y Fariñas, Mario) Abstract The tropical high Andes experience greater daily temperature oscillations ... -
El fuego y los árboles de las sabanas
(Medina E, Huber O, Nassar JM & Navarro (Eds). Recorriendo el paisaje vegetal de Venezuela. Ediciones IVIC., 2013) -
Functional characterisitcs of the arborescent genus Polylepis along a latitudinal gradient in the high Andes
(Interciencia 32(10): 663-668, Venezuela, 2007-09)Polylepis is a genus restricted to the Andean Mountain Range, naturally occurring above the upper continuous forest limit. The purpose of this work was to integrate and compare functional characteristics in terms of water ... -
Functional Diversity in Tropical High Elevation Giant Rosettes
(Goldstein G, Santiago LS (Eds). Tropical Tree Physiology. Springer., Suiza, 2016-03-04)Strong daily temperature variations, seasonal soil water availability and high air evaporative demands play an essential role in adaptive responses of tropical high elevation mountain plants. Giant rosettes are a perfect ... -
Functional diversity of wetland vegetation in the high-andean Páramo, Venezuela
(Spehn, E., Liberman, M., Körner, C. (Eds), Estados Unidos, 2006) -
Fundamentos de protección radiológica.
(SABER ULA, 2008-03-27)Fundamentos de protección radiológica. (Ramos Ojeda, Oswaldo y Villarreal, Manuel) Resumen En nuestro País crece a un paso acelerado el uso de los equipos generadores de radiaciones ionizantes en las aplicaciones médicas ... -
Gas exchange and water relations of evergreen and deciduous tropical savanna trees
(Annales des Sciences Forestieres 46 (supp), 1989) -
Gas exchange in sweet pepper (Capsicum chinense Jacq) under different light conditions
(Journal of Agricultural Science, 3 (3):134-142, Venezuela, 2011-09)Plants in the tropics are exposed to high radiation and consequently high temperature and evaporative demands throughout the year. Under these conditions, physiological processes and final yield may negatively affect ... -
Gas exchange, growth, flowering and furit production in sweet pepper (Capsicum chinenseJacq) along a thermal gradient determined by altitudinal differences in a tropical region
(Experimental Agriculture 15: doi:10.1017/S0014479715000071., Inglaterra, 2016-04)A common practice in some South American countries consists in moving around Capsicum chinense cultivars between regions where edaphoclimatic conditions differ notably. The purpose of this research was to compare and relate ... -
Gauge invariance for the massive axion
(SABER ULA, 2003-12-05)Gauge invariance for the massive axion (Khoudeir, Adel; Arias, Pío José) Abstract A massive gauge invariant formulation for scalar Φ and antisymmetric (Cmnp) fields with a topological coupling, which provides a ... -
Gauge theories at finite temperature and the background field method
(SABER ULA, 2006-01-19)Gauge theories at finite temperature and the background field method Antikainen, J.; Chaichian, M.; Pantoja, N.R.; Salazar, J.J. Abstract The background field method has been employed to ... -
General relativistic radiant shock waves in the post-quasistatic approximation.
(SABER ULA, 2006-12-28)General relativistic radiant shock waves in the post-quasistatic approximation. (Rueda H., Jorge A. y Núñez, Luis) Abstract An evolution of radiant shock wave front is considered in the framework of a recently presented ... -
Generalised soliton solutions of the Weyl class
(SABER ULA, 2008-07-02)Generalised soliton solutions of the Weyl class (Verdaguer, Enric ; Carot, Jaume) Abstract The whole family of generalised soliton solutions of the Weyl class for Einstein's equations in vacuum is considered. A ... -
Genetic typing of Trypanosoma cruzi isolates from different hosts and geographical areas of western Venezuela
(2011-12-13)A total of 72 Trypanosoma cruzi isolates from different hosts and geographical regions of western Venezuela, where Chagas disease is endemic, were typed using ribosomal and mini-exon gene markers. The isolates were obtained ... -
La geometría del universo y la radiación cósmica de fondo
(SABER ULA, 2004-06-16)La geometría del universo y la radiación cósmica de fondo (Rago, Héctor) Resumen La Radiación Cósmica de Microondas que plena uniformemente el espacio, es un vestigio de una época cuando el universo era unas mil ...