Current evidence indicates that over two-thirds of mood disorders pursue a recurrent or chronic course. Yet much of the progress recorded in the field of mood disorders and their treatment has been in research into the acute phase of the illness. Hence there is a need for a volume that specifically addresses the special clinical problems encountered inthe recurrent forms of these disorders. The various chapters of this book embrace a wide range of topics, including etiology, course, and long-term treatment, integrative reviews, results of recent investigations, and clinical reports. In this respect, the contributions reflect currentconcepts, research, and clinical practice. We have endeavored to build a bridge between neurobiology and psychology and have covered both the psychotherapeutic and the psychopharmacologic aspects of mood disorders.

This book eases students into the rigors of university mathematics. The emphasis is on understanding and constructing proofs and writing clear mathematics. The author achieves this by exploring set theory, combinatorics, and number theory, topics that include many fundamental ideas and may not be a part of a young mathematician's toolkit. This material illustrates how familiar ideas can be formulated rigorously, provides examples demonstrating a wide range of basic methods of proof, and includes some of the all-time-great classic proofs. The book presents mathematics as a continually developing subject. Material meeting the needs of readers from a wide range of backgrounds is included. The over 250 problems include questions to interest and challenge the most able student but also plenty of routine exercises to help familiarize the reader with the basic ideas.

This book eases students into the rigors of university mathematics. The emphasis is on understanding and constructing proofs and writing clear mathematics. The author achieves this by exploring set theory, combinatorics, and number theory, topics that include many fundamental ideas and may not be a part of a young mathematician's toolkit. This material illustrates how familiar ideas can be formulated rigorously, provides examples demonstrating a wide range of basic methods of proof, and includes some of the all-time-great classic proofs. The book presents mathematics as a continually developing subject. Material meeting the needs of readers from a wide range of backgrounds is included. The over 250 problems include questions to interest and challenge the most able student but also plenty of routine exercises to help familiarize the reader with the basic ideas.