Oportunidades para a coordenação de políticas agrícolas e ambientais no Brasil

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Previniendo la informalidad urbana en América Latina y el Caribe

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La industria del gas natural y las modalidades de regulación en América Latina

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Sector financiero y empleo femenino. El caso uruguayo

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Geoinformação na gestão dos recursos hídricos em sub-bacia hidrográfica

By remote sensing, geodatabase digital processing, information and expeditions to Capivara's sub-basin, was possible to identify the changes in the landscape mainly the expansion of eucalyptus, sugar-cane, and orange trees, being the last two, mainly on the Periferic Depression of Basaltic Cuesta. A significant portion of the soil on this geological area is formed from sandstones, providing high permeability to them, making them important places to groundwater recharge areas as sensible to contamination by pesticides. Throughout last decade was observed that the native vegetation fragments stabilization, keeping a reason of 26.5% on the land used between 2000 and 2010. The pasture decrease being substituted by eucalyptus, sugar-cane and orange trees call attention for the changes in the agribusiness model demanded by the current economic and social necessity. Pasture decrease followed by erosions decrease on sub-basin is evidence that these two aspects are strongly related.

Efectos de la crisis global sobre la seguridad social de salud y pensiones en América Latina y el Caribe y recomendaciones de políticas

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Gestión mixta y privada en la industria de hidrocarburos

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La gestión de la industria de hidrocarburos con predominio de empresas del Estado

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La seguridad energética de América Latina y el Caribe en el contexto mundial

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Situación y perspectivas del gas natural licuado en América del Sur

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Resultados de la reestructuración de la industria del gas en la Argentina

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Avaliação do estresse oxidativo no sangue de consumidores habituais de suco de laranja

Two biomarkers of oxidative stress were evaluated in healthy volunteers treated with daily doses of orange juice that is well known source of vitamin C and citric flavanones, which have been associated with antioxidant, anti-inflammatory and hypolipidemic effects. The antioxidant capacity in the blood serum was evaluated by studying the scavenging of 2,2'-diphenyl-1-picrylhydrazyl (DPPH) free radical, and also lipid peroxidation was evaluated by the thiobarbituric acid reacting substances (TBARS) assay. The results have shown that the regular consumption of orange juice increased 150% and 200% the serum antioxidant capacity for women and men respectively, but it was no significant change in the serum lipid peroxidation. In conclusion, the increase of flavonones and vitamin C in the body due to the regular intake of orange juice expressively improved the antioxidant capacity, but without significant effect on the lipid peroxidation.

El desarrollo de la minería del cobre en la segunda mitad del siglo XX

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Resultados de la reestructuración energética en Bolivia

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Estudio de suministro de gas natural desde Venezuela y Colombia a Costa Rica y Panamá

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