Tendencias recientes del mercado internacional del petróleo

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A contribuição marxista para o estudo das relações internacionais

The article examines the marxist contribution to the study of international relations stressing the historical dimension in the social groups and political economy as a fundamental variable. Thus, marxism provides resources to a comprehensive analysis of international relations, deconstructing the concept of state as is understood by the dominant theories in the area.

Determinantes de la inversión en el sector petróleo y gas en la Argentina

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Uso de sig e fotografias aéreas na determinação de conflitos na rede de drenagem na bacia experimental do Rio Pardo

This study aimed to detect and evaluate potential conflicts in the land use along the Rio Pardo's tributaries and sub-tributaries from its source which is in Pardinho, SP to the water capture system by the Basic Sanitation Company located in Botucatu, SP. It was used 2005 colored aerial photos, taking as a tool for assessing the Geographical Information System - IDRISI Andes. The results showed that the riparian forests were substituted predominantly by pastures, which is called conflict. In other words, the 1590.82ha of environmental preservation areas (PPA's) that should be protected by riparian forests and meadows (41.51%) in 2005, were used as pastures, being in conflict with the legislation. The aerial pictures associated to SIG-Idrisi proved to be efficient tools in mapping the area and monitoring the environmental impacts.

Reestruturação industrial: reflexões sobre autonomia tecnológica e relações econômicas internacionais

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El costo ecológico de la extracción de petróleo: una simulación

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Migraçoes internacionais e desenvolvimento: o impacto socioeconômico das remessas na Colômbia

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Un pronóstico de los precios mundiales del petróleo

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