Interciencia articles from May 2006

Interciencia archives from May 2006

The Interciencia awards/Los premios Interciencia/ Os premios Interciencia.(EDITORIAL)(Editorial)
May 1, 2006... The recognition to the work and the career of researchers acquires a special value when it is decided and conferred by the scientific community. It is even more so in our region, where the majority of important awards are given to scientists...

Numerical 3D modeling for organic matter maturation in sedimentary basins with complex structures/Modelado numerico 3D de la maduracion de la materia organica en cuencas sedimentarias estructuralmente complejas/Modelado numerico 3D da maturacao da materia organica em bacias sedimentarias estruralmente complexas.
May 1, 2006... SUMMARY A three-dimensional (3D) sedimentary basin model is proposed to compute the organic matter maturation process that occurs in complex geological structures formed over geological time due to tectonic forces. Special attention is...

Reproductive biology and plant species selection for habitat restoration in the Venezuelan Gran Sabana plateau/Biologia reproductiva y seleccion de especies de plantas para restauracion de habitat en la Gran Sabana, Venezuela/Bilogia reproductiva e selecao de especies de plantas para restauracao de habitat na Gran Sabana, Venezuela.
May 1, 2006... SUMMARY Plant species selection for the restoration of borrow pits in the Venezuelan Gran Sabana Plateau was based in plant species having high reproductive performance. The reproductive traits used are: 1--high and continuous seed...

Behaviors and attitudes associated to garbage disposition in non planned urban areas/Comportamientos y actitudes asociados a la disposicion de la basura en areas urbanas no planificadas/Comportamentos e atitudes associados a disposicao do lixo em areas urbanas nao planificadas.
May 1, 2006... SUMMARY This research presents the study of environmental behaviors and the present situation regarding garbage in an urban district of the city of Caracas, Venezuela, with the objective to support recommendations directed to maintained...

Estimation of trophic states in warm tropical lakes and reservoirs of Latin America by using GPSS simulation/Estimación de los estados troficos en lagos y embalses cálidos tropicales en Latinoamerica usando simulación GPSS/Estimacao dos Estados troficos em lagos e represas calidos tropicais na America Latina usando simulacao GPSS.
May 1, 2006... SUMMARY This paper proposes a stochastic simulation model to determine the boundaries of the trophic states of warm-water tropical lakes and reservoirs in Latin America based on statistical correlation and MonteCarlo techniques. The model...

Studies on the biology and ecology of Ceriodaphnia cornuta Sars: a Review/ Estudios sobre la biologia y ecologia de ceriodaphnia cornuta Sars: una revision/Estudos sobre a biologia e ecologia de ceriodaphnia cornuta Sars: uma revisao.
May 1, 2006... SUMMARY Ceriodaphnia cornuta Sars is one out of three most abundant cladocerans in tropical freshwaters, and the only one belonging to the Daphniidae family. This crustacean can tolerate low concentrations of dissolved oxygen and high...

Pescadores, peixes, espaco e tempo: uma abordagem etnoecologica.(COMUNICACIONES REPORTS COMUNICACOES)
May 1, 2006... RESUMO Este trabalho foi desenvolvido junto a duas comunidades de pescadores artesanais: Barra de Mamanguape e Tramataia, localizadas nas margens do Estuario do rio Mamanguape, estado da Paraiba, nordeste do Brasil, com o objetivo de...

Mycorrhizal dynamics and dependence of Desmoncus orthacanthos Martius (arecaceae), a native palm of the Yucatan Peninsula, Mexico.(COMUNICACIONES REPORTS COMUNICACOES)
May 1, 2006... SUMMARY Field observations were carried out to determine the seasonal patterns and recovery from disturbance by arbuscular mycorrhizal (AM) associations in Desmoncus orthacanthos Martius, eight years following shifting agriculture and in a...

Efecto del tamaño de semilla en la germinación de astrophytum myriostigma Lemaire. (Cactaceae), especie amenazada de extincion.
May 1, 2006... RESUMEN Astrophytum myriostigma Lem. es una cactacea endemica del desierto chihuahuense, Mexico, amenazada de extincion. Con el fin de promover su conservacion se realizo un experimento de germinacion con semillas de 4 anos de edad...

Biochemical composition and tissue weight of chorus giganteus (gastropoda: muricidae) exposed to different diets and temperatures during reproductive conditioning.
May 1, 2006... SUMMARY A study was made of the effects of temperature and diet on the dry soft tissue weight and biochemical composition of the gastropod Chorus giganteus (trumulco) over a 133 day period of reproductive conditioning. Adult specimens...

Caracterización funcional de la vegetación del Uruguay mediante el uso de sensores remotos.
May 1, 2006... RESUMEN El Indice de Vegetacion Normalizado (IVN) es un indice espectral derivado de sensores a bordo de satelites que muestra una relacion positiva y lineal con la fraccion de la radiacion fotosinteticamente activa absorbida por el dosel....