Spanish Abstract: El presente trabajo analiza la articulación de las relaciones precapitalistas y capitalistas en la producción de papa de los municipios de El Carmen de Viboral y La Unión ubicados en la subregión del Oriente antioqueño. Metodología: es un estudio cualitativo de casos...

From the negotiations of the United Nations Conference on Environment and Development, environmental issues become ever more applicants in the international agenda and in the various multilateral agendas, not just as questions of environmental protection, but mainly sustainable development,...

This paper presents a brief literature review concerning the costs and benefits of electric vehicles and hybrid electric vehicles, highlighting their advantages in terms of greenhouse gas emissions reductions. Even though electric and electro-hybrid vehicles must still overcome many cultural and...

From the negotiations of the United Nations Conference on Environment and Development, environmental issues become ever more applicants in the international agenda and in the various multilateral agendas, not just as questions of environmental protection, but mainly sustainable development,...

This paper presents a brief literature review concerning the costs and benefits of electric vehicles and hybrid electric vehicles, highlighting their advantages in terms of greenhouse gas emissions reductions. Even though electric and electro-hybrid vehicles must still overcome many cultural and...

The objective of the present study, is measure the efficiency in the sector of basic sanitation. Verifying the existence of economical efficiency among basic sanitation companies on Sao Paulo State, according to the different products determination, assuming two types of systematical errors...

Since the 1990s, Brazilian agriculture has taken a leading role in sustainable development. In this context, the United Nations Conference on the Environment (Rio-92) was held in Rio de Janeiro, the release of satellite images that reduced deforestation rates in the Amazon, and the...

Since the 1990s, Brazilian agriculture has taken a leading role in sustainable development. In this context, the United Nations Conference on the Environment (Rio-92) was held in Rio de Janeiro, the release of satellite images that reduced deforestation rates in the Amazon, and the...