This book describes a pathway for sustainable phosphorus management via the Global Transdisciplinary Processes for Sustainable Phosphorus Management project (Global TraPs). Global TraPs is a multi-stakeholder forum in which scientists from a variety of disciplines join with key actors in practice to jointly identify critical questions and to articulate what new knowledge, technologies and policy processes are needed to ensure that future phosphorus use is sustainable, improves food security and environmental quality and provides benefits for the poor. The book offers insight into economic scarcity and identifies options to improve efficiency and reduce environmental impacts of anthropogenic phosphorus flows at all stages of the supply and use chain.

This volume should enhance health care professionals' understanding of the myriad complications that develop when a person with an eating disorder gets married or becomes involved in a long-term intimate relationship. Drawing on their vast experience in family therapy, social work, and treatment of eating disorders, the authors carefully review the current literature on eating disorders in long-term relationships, and then present a practical approach to assessment and treatment.

First published in 1994. Routledge is an imprint of Taylor & Francis, an informa company.

An attractive, promising, and frustrating feature of ecology is its complex ity, both conceptual and observational. Increasing acknowledgment of the importance of scale testifies to the shifting focus in large areas of ecology. In the rush to explore problems of scale, another general aspect of ecolog ical systems has been given less attention. This aspect, equally important, is heterogeneity. Its importance lies in the ubiquity of heterogeneity as a feature of ecological systems and in the number of questions it raises questions to which answers are not readily available. What is heterogeneity? Does it differ from complexity? What dimensions need be considered to evaluate heterogeneity ade quately? Can heterogeneity be measured at various scales? Is heterogeneity apart of organization of ecological systems? How does it change in time and space? What are the causes of heterogeneity and causes of its change? This volume attempts to answer these questions. It is devoted to iden tification of the meaning, range of applications, problems, and methodol ogy associated with the study of heterogeneity. The coverage is thus broad and rich, and the contributing authors have been encouraged to range widely in discussions and reflections. vi Preface The chapters are grouped into themes. The first group focuses on the conceptual foundations (Chapters 1-5). These papers exarnine the meaning of the term, historical developments, and relations to scale. The second theme is modeling population and interspecific interactions in hetero geneous environments (Chapters 6 and 7)."

B. Basler, S. Brandes, A. Spiegel and T. Bach: Total Synthesis of Kalsoene and Preussin .- R. Bandichhor, B. Nosse and O. Reiser: Paraconic Acids- the Natural Products from Lichen Symbiont .- M. Hiersemann and H. Helmboldt: Recent Progress in the Total Synthesis of Dolabellane and Dolastane Diterpenes .- L. Wessjohann and E. Ruijter: Strategies for Total and Diversity-Oriented Synthesis of Natural Product (-Like) Macrolides .- M. Sefkow: Enantioselective Synthesis of C(8)-Hydroxylated Lignans: Early Approaches and Recent Advances