The field of health psychology has grown dramatically in the last decade, with exciting new developments in the study of how psychological and psychosocial processes contribute to risk for and disease sequelae for a variety of medical problems. In addition, the quality and effectiveness of many of our treatments, and health promotion and disease prevention efforts, have been significantly enhanced by the contributions of health psychologists (Taylor, 1995). Unfortunately, however, much of the theo rizing in health psychology and the empirical research that derives from it continue to reflect the mainstream bias of psychology and medicine, both of which have a primary focus on white, heterosexual, middle-class American men. This bias pervades our thinking despite the demographic heterogeneity of American society (U. S. Bureau of the Census, 1992) and the substantial body of epidemiologic evidence that indicates significant group differences in health status, burden of morbidity and mortality, life expectancy, quality of life, and the risk and protective factors that con tribute to these differences in health outcomes (National Center for Health Statistics, 1994; Myers, Kagawa-Singer, Kumanyika, Lex, & M- kides, 1995). There is also substantial evidence that many of the health promotion and disease prevention efforts that have proven effective with more affluent, educated whites, on whom they were developed, may not yield comparable results when used with populations that differ by eth nicity, social class, gender, or sexual orientation (Cochran & Mays, 1991; Castro, Coe, Gutierres, & Saenz, this volume; Chesney & Nealey, this volume)."

This series presents critical reviews of the present and future trends in polymer and biopolymer science including chemistry, physical chemistry, physics and materials science. It is addressed to all scientists at universities and in industry who wish to keep abreast of advances in the topics covered.

Impact Factor Ranking: Always number one in Polymer Science. More information as well as the electronic version of the whole content available at: www.springerlink.com

The field of health psychology has grown dramatically in the last decade, with exciting new developments in the study of how psychological and psychosocial processes contribute to risk for and disease sequelae for a variety of medical problems. In addition, the quality and effectiveness of many of our treatments, and health promotion and disease prevention efforts, have been significantly enhanced by the contributions of health psychologists (Taylor, 1995). Unfortunately, however, much of the theo rizing in health psychology and the empirical research that derives from it continue to reflect the mainstream bias of psychology and medicine, both of which have a primary focus on white, heterosexual, middle-class American men. This bias pervades our thinking despite the demographic heterogeneity of American society (U. S. Bureau of the Census, 1992) and the substantial body of epidemiologic evidence that indicates significant group differences in health status, burden of morbidity and mortality, life expectancy, quality of life, and the risk and protective factors that con tribute to these differences in health outcomes (National Center for Health Statistics, 1994; Myers, Kagawa-Singer, Kumanyika, Lex, & M- kides, 1995). There is also substantial evidence that many of the health promotion and disease prevention efforts that have proven effective with more affluent, educated whites, on whom they were developed, may not yield comparable results when used with populations that differ by eth nicity, social class, gender, or sexual orientation (Cochran & Mays, 1991; Castro, Coe, Gutierres, & Saenz, this volume; Chesney & Nealey, this volume).

This series presents critical reviews of the present and future trends in polymer and biopolymer science including chemistry, physical chemistry, physics and materials science. It is addressed to all scientists at universities and in industry who wish to keep abreast of advances in the topics covered.

Impact Factor Ranking: Always number one in Polymer Science. More information as well as the electronic version of the whole content available at: www.springerlink.com

Biological diversity, or biodiversity, refers to the universal attribute of all living organisms that each individual being is unique - that is, no two organisms are identical. The biology of biodiversity must include all the aspects of evolutionary and ecological sciences analyzing the origin, changes, and maintenance of the di versity of living organisms. Today biodiversity, which benefits human life in vari ous ways, is threatened by the expansion of human activities. Biological research in biodiversity contributes not only to understanding biodiversity itself but also to its conservation and utilization. The Biology of Biodiversity was the specialty area of the 1998 International Prize for Biology. The International Prize for Biology was established in 1985 in commemoration of the sixty-year reign of the Emperor Showa and his longtime devotion to biological research. The 1998 Prize was awarded to Professor Otto Thomas Solbrig, Harvard University, one of the authors of this book. In conjunction with the awarding of the International Prize for Biology, the 14th International Symposium with the theme of The Biology of Biodiversity was held in Hayama on the 9th and 10th of December 1998, with financial support by an international symposium grant from the Ministry of Education, Science, Sports and Culture of Japan. The invited speakers were chosen so as to cover four basic aspects of biodiversity: species diversity and phylogeny, ecological biodiversity, development and evolution, and genetic diversity of living organisms including human beings.