Población, equidad y transformación productiva

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Cumbre de las Américas 1994-2009: indicadores seleccionados

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Guía para decisores: externalidades en proyectos de infraestructura urbana

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Cambio climático y retos para el sector turismo de Centroamérica

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Dilema del suministro de gas natural en México

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Los inmigrantes mexicanos, salvadoreños y dominicanos en el mercado laboral estadounidense: las brechas de género en los años 1990 y 2000

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Zonas francas en Uruguay: actividad económica, comercio exterior y plataforma para la exportación de servicios

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Exportaciones de manufacturas de América Latina: ¿desarme unilateral o integración regional?

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Aplicação da eletrorresistividade na caracterização do meio hidrogeológico na cidade de JI-paraná (RO)

The Ji-Paraná city (RO) it doesn't possess public system of collection and treatment of sewers, being the waters residuárias produced by the local population thrown at sewages. Traditionally, many inhabitants use wells amazon extracted underground water or tubular shallow in the urban zone. The study accomplished in the Nova Brasília neighborhood for Silva (2009) revealed that the local aquifer is strongly contaminated for nitrate, originated of the decomposition of the organic matter deposited at the sewages local maidservants. With the objective of detecting areas with high concentrations originating from organic compositions of septic sewages, geophysical risings were accomplished, later related with analyses physical-chemistries in samples of groundwaters obtained in several wells installed in the Nova Brasília neighborhood, besides of soil samples descriptions in zone not saturated obtained in wells. The results obtained by the geophysical rehearsals they reveal that the polluting feather not migrates through the zone saturated, arriving with relative easiness to the aquifer, reaching in some points, superior depth to 34 m reached by the geoelectrical profiling.

El gobierno electrónico en la gestión pública

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Reformas, políticas sociales y equidad en Bolivia

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Relação do meio físico com o manejo sustentável de plantio de eucalipto em áreas de terrenos acidentados - A Fazenda Santa Edwirges, Vale do Paraíba, Sudeste do Brasil

This study intends to evaluate the effects of landscape physical elements (rocks and relief) associated with silviculture activities. The study was carried out on a small farm (Fazenda Santa Edwirges) covered by Eucalyptus forested situated in the Paraiba do Sul Basin, Southeast Brazil. The methodology consisted of detailed geological and geomorphological studies at 1:10,000 scale, and laboratory analysis of soil physical properties. The results showed three geologic-geomorphologic associations (ridge escarpment with granitic rocks, steep and gentle hills cut by shear zones and gentle hill with alluvial sediments) present high vulnerability for the development of the physical processes such as accelerated erosion landslides and flooding. In contrast, mountains associated with gneissic rocks present smaller vulnerability and high resilience for the development of the physical processes. The results have showed the importance of considering the interactions among landscape physical for the eucalyptus forest management contributing to a better selection area for eucalyptus cultivation and minimize adverse environment impact in road design.

El segundo catch-up brasileño. Características y limitaciones

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Alianzas público-privadas como estrategias nacionales de desarrollo a largo plazo

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La dualidad del tipo de cambio en la economía cubana de los noventa

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