Now showing items 1-10 of 6232
Derivative spectrophotometric method for copper determination
(Kluwer Academic Publishers, 1995)
A simple, sensitive and selective method by solvent extraction-first derivative spectrophotometry is described for the determination of microamounts of copper in water by means of its reaction and extraction at pH 8.0 with ...
Environmental perception as a contribution to environmental education in protected area trails and creation of an interpretative itinerary
(Federal Univ Rio Grande, Inst Education, 2016-09-01)
The present article provides some considerations about environmental awareness and the creation of an interpretive script as a contribution to extensionism and environmental education in protected areas, directed to work ...
Environmental performance analysis: foundry industry case report
(Emerald Group Publishing Ltd, 2017-01-01)
Purpose - The purpose of this paper is to present a case report involving environmental performance analysis of a small Brazilian business from the foundry industry. Design/methodology/approach - An environmental performance ...
Environmental contents in the teaching of chemistry: an analysis in standards, educational books, and assessment matrices in Brazil
(Univ Francisco Jose Caldas, Fac Science & Education, 2017-07-01)
Research in sciences education currently complain that is necessary to educate people responsible to act and critical thought about social environmental reality, it requires teachers, curriculum organizations and assessments ...
Environmental fragility evaluation and guidelines for environmental zoning: a study case on Ibiuna (the Southeastern Brazilian region)
Environmental fragility models are important decision tools for policy makers as they help quantify environmental sensitivity and understand the relationship between human activities and environmental quality. The objective ...
Air pollution impact on phagocytic capacity of peripheral blood macrophages and antioxidant activity of plasma among school children
Peripheral blood macrophages of school children from downtown Santiago, Chile-a highly polluted city-exhibited a lower phagocytic index with higher percentage of killing than those of the rural village of Marla Pinto. These ...