A persistência do movimento negro no combate ao racismo e às desigualdades raciais, bem como a participação de militantes na política institucional nas mais variadas esferas decisão, obrigou Estado brasileiro o reconhecimento caráter conflituoso desigual nossas relações rompendo com décadas da visão um país racialmente harmonizado. Tal legou estabelecimento instrumentos jurídicos políticas espe...

introduction the attention given to water management has increased lately due to the growing problem of water scarcity worldwide and rising conflicts between water users. participation of local people in water management is now seen as a crucial prerequisite for the conservation and sustainable use of scarce water resources. since the late 1990s, participatory and integrated water management ha...

Phenothiazines are known to be among the compounds that reverse or modulate the multidrug resistance (MDR) of cancer cells. There is much evidence that the interactions of these reversal agents with the lipid phase of the plasma membrane are involved in the mechanism of MDR reversal. In this study, two parameters of a set of commercial phenothiazines were estimated: the phosphatidylocholine ves...