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It is commonly believed that there is little or no social and economic mobility in developing societies, that immobility is indeed part of a larger picture of inequality. Certainly this view has been taken of Brazil, a rapidly developing capitalist society with one of the world's most unequal patterns of income distribution. José Pastore's landmark study, then, will evoke sharp debate and controversy among social scientists. Employing a massive and sophisticated primary database, he uncovers a surprising amount of mobility in contemporary Brazilian society. In fact, he postulates, the society's inherent inequality is in large part related to the high degree of upward mobility of the Brazilian population. Particularly in the last three decades, the upward mobility of the middle classes, says Pastore, has "stretched" the Brazilian social structure, thus allowing for increased inequality. Pastore's findings will prompt a reevaluation of many long-held economic and sociological tenets, not only concerning Brazil but also other rapidly developing capitalist societies. His work will also contribute significantly to the present political debate on capitalist growth strategies for Third World nations. Sociologists, economists, political scientists, development specialists, and all with an interest in contemporary Latin America will find Pastore's work to be both a stimulating analysis and a rich source of data for further research.

Male infertility is a multifaceted disease where genetic, epigenetic and environmental factors all contribute to the development of the phenotype. In recent years, there has been an increasing concern about a decline in reproductive health, paralleled by an increase in demand for infertility treatments. This calls for a detailed and thorough understanding of normal and aberrant testicular function and the environmental influences on the establishment and integrity of the male germ cell. This is crucial for understanding the complex pathophysiology of male infertility and eventual success of Assisted Reproductive Technologies.

Focaliza a interação entre o trabalho e as demais dimensões da vida humana. Descreve panorama das grandes mudanças que estão ocorrendo na família e nos costumes por força das transformações que têm lugar no mundo do trabalho.

Social research on labour force participation of woman workers and young workers, youth and child labour from families in extreme poverty in Brazil - examines population variables, wages and hours of work, unemployment or occupational status of head of household; includes a literature survey and explanation of the research method. References, statistical tables.

Monographic study of working conditions and employment rates of skilled worker, supervisory and technician labour force in Brazil, analysing the relationship between wage rates and educational levels throughout the occupational structure in sao paolo - includes statistical tables.