Processes of spatial mobility among the Mbya are of interest in anthropological and ethnobiological studies, as these processes are related to transformations in the landscape and the environment. Despite this, ethnographic literature usually focuses itself on the mobility of Guaraní…

Since its inception, the social sciences have tried to legitimate their scientific criteria so that the knowledge generated by social research is deemed valid and reliable. With this objective in mind, a series of techniques, norms, processes, rules and procedures…

O presente artigo teve como objetivo analisar se o projeto-piloto do Curso “Consumo Sustentável / Consumo Responsável: desenvolvimento, cidadania e meio ambiente” atingiu os resultados esperados quando de sua proposição. O curso foi oferecido, em 2005, na modalidade a distância,…

Los farmacéuticos y productos de cuidado personal (PPCPs) pertenecen al grupo contaminantes emergentes, su riego ambiental no se había detectado hasta hace una década. Recientemente, han sido reportados de causar efectos adversos sobre la vida silvestre y humana. Además, la…

Nowadays, data intensive applications are in constant demand and there is need of computing environments with better intelligent capabilities than those present in today's Database Management Systems (DBMS). To build such systems we need formalisms that can perform complicate inferences,…

The aim of this paper is to describe and discuss some results from an ethnographic research on Argentinian Mbya communities focused on representations and practices related to childrearing and development during the first stages of life course.
Firstly, I describe…

La educación ambiental, ha atravesado en las últimas décadas distintas etapas respecto de sus finalidades, contenidos y modos de interactuar en las aulas. En Buenos Aires, tal proceso de cambio se profundiza con la aprobación de los diseños curriculares en…

Background: Fieldwork has thoroughly established that most eggs are intensely predated. Among the few exceptions are the aerial egg clutches from the aquatic snail Pomacea canaliculata which have virtually no predators. Its defenses are advertised by the pigmented ovorubin perivitellin…

O artigo trata da questão da poluição atmosférica e do aquecimento global, fazendo um estudo do Protocolo de Kyoto e questões de natureza ética. Este artigo objetiva relacionar desenvolvimento sustentável, mecanismos de desenvolvimento limpo e mercado de créditos de carbono.…

This paper addresses the problem of contour line extraction from scanned topographic maps in poor condition. A novel method is developed, using knowledge of cartography and graphics to extract contours by removing other layers which overlay the contours, and reconstructing…