Cellulose was isolated from recycled pulp and paper sludge and used to synthesize cellulose nanocrystals. Response surface methodology and Box-Behnken design model were used to predict, improve, and optimize the cellulose ...

Silver nanoparticles have gained worldwide attention in the scientific community due to their high antimicrobial activity. However, they tend to agglomerate and lose their shape and properties, thus capping agents necessary ...

This study sought to investigate the tail dependence between government debt and bank’s nonperforming loans. The objectives of this study were formulation of a bivariate copula model which captures the dependence between ...

1 Programa de Po´ s-Graduac¸ão em Ecologia, Instituto Nacional de Pesquisas da Amazoˆ nia, Manaus, Brazil, 2Instituto Tecnolo´ gico Vale, Bele´ m, Brazil, 3Terrestrial Ecology Group (TEG-UAM), Departamento de Ecolog´ıa, ...

The Cameroon Volcanic Line, which divides the Congo Basin fauna from the West African fauna, is a known area of high endemism for various taxa, but the region’s bat fauna has received little attention. We review variation ...