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Prevalence of leisure-time physical activity and associated factors: a population-based study in Sao Paulo, Brazil, 2008-2009
(Cadernos Saude PublicaRio De JanieroBrasil, 2013)
Effect of Calcination Temperature on the Photocatalytic Activity of Nanostructures Synthesized by Hydrothermal Method from Black Mineral Sand
A nanostructured material from black sand, whose structure is composed by Fe2O3 and TiO2 oxides, was prepared via hydrothermal treatment (at 120 °C for 72 h), The starting mineral (as-synthesized nanostructure) was ...