Interciencia articles from June 2006

Interciencia archives from June 2006

False dicotomies and dualities in science/Falsas dicotomias y dualidades en ciencia/Falsas dicotomias y dualidades en ciencia.(EDITORIAL)(Editorial)
June 1, 2006... The human mind operates through opposing or complementary elements, establishing dualities, convergences, comparisons and dichotomies. So, in the same manner that we can encounter atomistic or holistic approaches and face the good and the evil,...

Virus in nonhuman primates: zoonosis, anthroponosis and biodiversity/Virus en primates no humanos: zoonosis, antroponosis y biodiversidad/Virus em primatas nao humanos: zoonoses, anthroponoses e biodiversidade.
June 1, 2006... SUMMARY Nonhuman primates can harbour pathogens that might infect humans through zoonotic transmission. The best example of this threat is the origin of human immunodeficiency viruses 1 and 2. Several nonhuman primate species are...

Agrobiodiversity and technology in resource-poor farms/Agrobiodiversidad y technologia en sistemas productivos campesinos/Agrobiodiversidade e tecnologia em sistemas produtivos campones.
June 1, 2006... SUMMARY Farms managed by peasants are traditionally considered as containing a high level of agrobiodiversity. However, the internal heterogeneity of their farming systems and the links between agrobiodiversity, technology and peasant...

Measurement of the impact produced by short duration occasional noises/ Medicion del impacto ocasionado por ruidos esporadicos de corta duración/ Medicao do impacto ocasionado por ruidos esporadicos de curta duracao.
June 1, 2006... SUMMARY National and local laws presently enforced in Venezuela concerning environmental noise contamination utilize parameters that do not detect sporadic short duration noises. The parameter currently employed, the statistical level...

Evapotranspiration from a remote sensing model for water management in an irrigation system in Venezuela/Estimación de la evapotranspiración con un modelo de teledetección para el manejo del agua en un sistema de riego en Venezuela/Estimacao da evapotranspiracao com um modelo de teledeteccao para o manejo da agua em um sistema de irrigacao na Venezuela.
June 1, 2006... SUMMARY This paper explores the feasibility of the use of an energy balance model for the estimation of evapotranspiration from satellite data in a large irrigated area, the Rio Guarico irrigation system, in Venezuela. A large water...

Effects of reinforcement on the arrau turtle (Podocnemis expansa) population in the middle Orinoco, Venezuela/Efectos del reforzamiento sobre la poblacion de tortuga arrau (Podocnemis expansa) en el Orinoco medio, Venezuela/Efeitos do esquema de reforco sobre a populacao de tartarugas arrau ou tartarugas do amazonas (Podocnemis expansa) no Orinoco medio, Venezuela.
June 1, 2006... SUMMARY The Podocnemis expansa reinforcement program in the Middle Orinoco River, whereby 86677 juveniles bred in captivity were released into their natural habitat from 1993 to 2001, was assessed. In 1988, 2000 and 2001, 244 P. expansa...

Recuperación del genoma del padre recurrente en un programa de retrocruzas asistido por marcadores en arroz.(COMUNICACIONES)
June 1, 2006... RESUMEN La piricularia (Pyricularia grisea (Cooke) Sacc.) es una de las enfermedades mas destructivas del arroz a nivel mundial. El uso de cultivares resistentes es la via mas efectiva y economica de controlar la enfermedad. El metodo de...

Efecto de la concentración de aflatoxina b1 y tiempo de exposición sobre la condición hépatica de la trucha arcoiris.(COMUNICACIONES)
June 1, 2006... RESUMEN Se determinó el efecto de la concentración y tiempo de exposición de la afla-toxina B1 (AFB1) sobre la condición hépatica de la trucha arcoiris (Oncorhynchus mykiss). Se utilizarón 3600 ovas em-brionadas de 13 dias...

Caracterización electroforetica de las globulinas del grano fermentado de tres tipos de cacao.(COMUNICACIONES)
June 1, 2006... RESUMEN Se caracterizaron electroforeticamente las globulinas del grano fermentado de los cacaos tipo criollo, forastero y trinitario de la localidad de Cumboto, estado Aragua, Venezuela, para lo cual fueron cosechadas mazorcas de dos...

Effects of aeromonas caviae co-cultured in mouse small intestine.(REPORTS)
June 1, 2006... SUMMARY The ultrastructural aspects generated by the interaction between two strains of Aeromonas caviae with mouse intestinal mucosa are described. One of the strains was isolated from an asymptomatic patient and the other one from a...

Biomass distribution in declining sacred-fir seedlings.(REPORTS)
June 1, 2006... SUMMARY In the forests located west and southwest of Mexico City, decline of sacred-fir Abies religiosa (H.B.K.) Schl. et Cham. has been observed for the past 25 years. Characterization of the phenomenon from different viewpoints is...

Reliability of the RAPD technique for germplasm analysis of sesame (Sesamum indicum L) from Venezuela.(REPORTS)
June 1, 2006... SUMMARY The random amplified polymorphic DNA (RAPD) technique was used to evaluate two commercial cultivars (Fonucla and UCLA-1) and 7 lines (UCLA-249; UCLA-295; UCLA-37-1; UCLA-65; UCLA-83; UCLA-90; UCV-2) of sesame (Sesamum indicum L)...

Respuestas fisiologicas, rendimiento y calidad de semilla en frijol sometido a estres hidrico.(COMUNICACIONES)
June 1, 2006... RESUMEN Se evaluo la fotosintesis global, respiracion, rendimiento y calidad fisica y fisiologica de semillas de frijol de la variedad "Frijol negro precoz", originario de la Mixteca Alta de Oaxaca, Mexico. Las plantas fueron sometidas a...

Forthcoming events / Reuniones venideras / Proximas reunioes.(Ilustración)
June 1, 2006... REUNIONES VENIDERAS / FORTHCOMING EVENTS / PROXIMAS REUNIOES REUNION / EVENT LUGAR / LOCATION FECHA / DATE JORNADAS IBEROAMERICANAS Santa Cruz de la 3 a 17 de julio SOBRE ALTERNATIVAS PARA LA Sierra,...