It is one of the great mysteries in the archaeology of the Americas: the depopulation of the northern Southwest in the late thirteenth-century AD. Considering the numbers of people affected, the distances moved, the permanence of the departures, the severity of the surrounding conditions, and the human suffering and culture change that accompanied them, the abrupt conclusion to the farming way of life in this region is one of the greatest disruptions in recorded history. Much new paleoenvironmental data, and a great deal of archaeological survey and excavation, permit the fifteen scientists represented here much greater precision in determining the timing of the depopulation, the number of people affected, and the ways in which northern Pueblo peoples coped—and failed to cope—with the rapidly changing environmental and demographic conditions they encountered throughout the 1200s. In addition, some of the scientists in this volume use models to provide insights into the processes behind the patterns they find, helping to narrow the range of plausible explanations. What emerges from these investigations is a highly pertinent story of conflict and disruption as a result of climate change, environmental degradation, social rigidity, and conflict. Taken as a whole, these contributions recognize this era as having witnessed a competition between differing social and economic organizations, in which selective migration was considerably hastened by severe climatic, environmental, and social upheaval. Moreover, the chapters show that it is at least as true that emigration led to the collapse of the northern Southwest as it is that collapse led to emigration.

Stellar Astrophysics contains a selection of high-quality papers that illustrate the progress made in research into the structure and evolution of stars. Senior undergraduates, graduates, and researchers can now be brought thoroughly up to date in this exciting and ever-developing branch of astronomy.

The most comprehensive and up-to-date guide to modern corporate restructuring techniques Mergers and acquisitions are two of today's most important competitive tools used by corporations in a rapidly changing global business landscape. In this new updated and revised Third Edition of his groundbreaking book-winner of the Book of the Year Award in its category from the Association of American Publishers-author, business valuations expert, and professor Patrick Gaughan illustrates how mergers, acquisitions, and other vital forms of restructuring can work for corporations. This University Edition includes review questions specifically designed for finance students and those studying for the MBA degree. Packed with helpful advice and proven strategies, this book: * Explains virtually every type of corporate restructuring, including mergers and acquisitions, divestitures, reorganizations, joint ventures, leveraged buyouts, and more * Details the latest trends and delivers a modern, international perspective on the field * Integrates the latest relevant research in the field of mergers into the book's pragmatic treatment of the subject * Offers comprehensive coverage of the latest methods and techniques for business valuations of both public and closely held companies * Looks at the key strategies and motivating factors that arise during the course of restructurings * Analyzes and incorporates necessary legal, economic, and corporate finance considerations * Offers the best offensive and defensive tactics for hostile takeovers