Accepted for publication 1 December 1994 Clinical context of prostatic disease Benign hyperplasia and adenocarcinoma of the prostate are common diseases; this Broadsheet is published at an opportune time as awareness, investigation and treatment of both diseases are changing. Up to 25% of men past middle age may need assessment and treatment of clinically benign disease.' Open surgery, involvin...

Amostras brasileiras de caulinita foram usadas no estudo dos processos de intercalação com uréia (K UR ) e de deslaminação (K UR/DL ). A amostra intercalada foi deslaminada por tratamento com ultra-som em solução ácida. A distância basal inicial de 0,72 nm passa a 1,08 nm com aumento na área superficial de 20,3 para 90,5 m g para K NAT e K UR/DL . Amostras de argila intercalada e deslaminada ad...

The fruit fly Drosophila Melanogaster has become a model organism in the study of neurobiology and behavior patterns. The analysis of the way the fly moves and its behavior is of great scientific interest for research on aspects such as drug tolerance, aggression or ageing in humans. In this article, a procedure for detecting, identifying and tracking numerous specimens of Drosophila by means o...