982 resultados para DIAZ, JOSE JAVIER


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Presented here is a study about the capability of a sensing unit to detect changes in river water quality. In order to determine its accuracy, water quality was monitored at 11 points along the Veado River in Presidente Prudente, Brazil. To have a basis for comparison, a water quality index (WQI) was developed following methods previously applied in different watersheds. Results showed an accurate relationship between WQI and electric impedance readings detected by the sensing unit. Principal components analysis (PCA) was used to derive results in a form that can be correlated with WQI calculated for each sample point, which showed the potential application of this device.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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A study of the geological characteristics of the Buaru Group basaltic substratum and stratigraphical unities was carried out, taking into account the groundwater exploration in S.Jose do Rio Preto area. The presence of the tectonic structures in this substratum exercised a profound influence on the sedimentation of the Bauru Group and on the variations in the hydrological properties of the sediments of the area.-English summary

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Were examined 58 dairy goats, 41 kids and 17 adults, Saanen and Alpine breeds, males and females, in intensive system, in the São José do Rio Preto region, São Paulo state, for detection and identification of Eimeria spp. oocysts. The 58 feces samples analyzed by the Centrifugal-flotation technique, were positive for, at least, one Eimeria species. The Eimeria species found in this research were: E. ninakohlyakimovae (77,6%), E. jolchijevi (72,4%), E. alijevi (63,8%), E. christenseni (63,8%), E. arloingi (62,1%), E. caprovina (56,9%), E. hirci (50,0%) and E. caprina (48,3%). It follows that the high rate of the positive animals and the high frequency of the Eimeria species among the animals demonstrated that the disease is common in dairy goats, kids and adults, in intensive system.

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El seminario de ensenanza de la demografia a nivel de pre-grado reunio a un grupo de docentes e investigadores de las universidades de Centroamerica y El Caribe, asi como del CELADE, a objeto de discutir los logros alcanzados y proponer medidas tendientes a una mayor institucionalizacion y mejoramiento de dicha ensenanza, iniciada en la decada del 60. Previa presentacion detallada de las conclusiones del seminario, se analiza la situacion en las distintas universidades en base a una encuesta por paises. Posteriormente, se discute en profundidad la ensenanza de pre-grado impartida en la universidad de Costa Rica y se proponen, a nivel regional, una serie de acciones destinadas a pre y post grado y a cursos no incluidos en la ensenanza regular

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Incluye Bibliografía

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El documento presenta los objetivos, metodologia y resultados de la investigacion realizada por los alumnos del Curso de Tecnicas de Investigacion Bio-Social de CELADE en cinco unidades sanitarias de San Jose, Costa Rica, en una muestra de usuarias activas del Programa de Planificacion Familiar.