A existência de Clypeaster latissimus (Lamarck) no Brasil e considerações sôbre Clypeaster subdepressus (Gray) (Clypeastroida, Echinoidea)

Embryonic, Larval, and Juvenile Development of the Sea Biscuit Clypeaster subdepressus (Echinodermata: Clypeasteroida)

Sea biscuits and sand dollars diverged from other irregular echinoids approximately 55 million years ago and rapidly dispersed to oceans worldwide. A series of morphological changes were associated with the occupation of sand beds such as flattening of the body, shortening of primary spines, multiplication of podia, and retention of the lantern of Aristotle into adulthood. To investigate the de...

A Química No Brasil De Hoje

CHEMISTRY IN TODAY’S BRAZIL. This article surveys the birth and development of the chemical community in Brazil in the last 50 years. Starting from humble beginnings, a vigorous community developed and rapidly expanded the scope of its activities across the country. Many problems remain unsolved, however, and to these have now been added dismal government policies which threaten to dwarf many o...

Tecnologias e redes informacionais e suas implicações sobre a força de trabalho no Brasil

The use of information technology networks and its impact on the labor force by means of continued education at a distance is but a few of the most appropriate ways of carrying out an analysis and identification – all assisted by theoretical construct – of the changes that are now taking place in our so called information/knowledge society. It has been, therefore, the main purpose of this work ...

Governança local no sistema descentralizado de saúde no Brasil

Objetivo. Analisar as mudanças decorrentes do processo de descentralização do Sistema Único de Saúde na governança do setor saúde no âmbito do poder local entre 1996 e 2006. Métodos. Um questionário foi aplicado aos gestores municipais de saúde de todo o Brasil em 1996 e novamente em 2006. Foram coletadas informações sobre as características de inovação da gestão em três dimensões: social, gere...

گزارش دلار شنی (Clypeaster humilis) در جزیره هندورابی؛ خلیج فارس