The economic valuation of environmental assets has gained relevance as instruments to assist the decision making of managers both public and legislators, as investors and entrepreneurs. Assign an economic value to environmental ...

This work aimed to elucidate the sodium silicate action mechanism as a depressor in the flotation of the minerals quartz and calcite. The experiments were done with high-purity mineral samples (quartz and calcite) in the ...

Social networks have gained prominence in recent years due to the ease of interaction provided to its users. The social applications have become fairly attractive, expanding traditional forms of interaction between members ...

The rapidly increasing use of computers in schools in various school levels, has encouraged teachers and educators to use new technologies in teaching and learning, for example, Learning Objects. Therefore, this article ...

The great technological advances of recent times, especially after the spread of the internet, opens new perspectives for Distance Education supported in Virtual Learning Environments that add various technologies found ...

This article is about the Higher Education policy, focusing on the Electrical Engineering undergraduation course at Instituto Federal da Paraíba - IFPB, Campus João Pessoa. Two objectives orientate the discussion: investigating ...

This article has its origins in a research entitled “(Auto)biographical narratives in teacher training: an experience in mathematics course”, which was developed in the period from 2012 to 2013 in Instituto Federal de ...