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Jack Ward Thomas, an eminent wildlife biologist and U.S. Forest Service career scientist, was drafted in the late 1980s to head teams of scientists developingstrategies for managing the habitat of the northern spotted owl. That assignment led to his selection as Forest Service chief during the early years of the Clinton administration. It is history's good fortune that Thomas kept journals of his thoughts and daily experiences, and that he is a superb writer able to capture the moment with clarity and grace. The issues Thomas dealt with in office and noted in his journals lie at the heart of recent Forest Service policy and controversy, starting with President Clinton's Timber Summit in Port...
This text is a rigorous introduction to ergodic theory, developing the machinery of conditional measures and expectations, mixing, and recurrence. Beginning by developing the basics of ergodic theory and progressing to describe some recent applications to number theory, this book goes beyond the standard texts in this topic. Applications include Weyl's polynomial equidistribution theorem, the ergodic proof of Szemeredi's theorem, the connection between the continued fraction map and the modular surface, and a proof of the equidistribution of horocycle orbits. Ergodic Theory with a view towards Number Theory will appeal to mathematicians with some standard background in measure theory and functional analysis. No background in ergodic theory or Lie theory is assumed, and a number of exercises and hints to problems are included, making this the perfect companion for graduate students and researchers in ergodic theory, homogenous dynamics or number theory.
Set in London 2065, society has continued its advancement in both philosophy and technology. People no longer suffer the hardships which previous generations faced. However, Sam Moorcroft, a teenager, is drawn to a particular village, primitive in nature. Designed as a sociological experiment, the village has no connection or knowledge of the outside world. Sam finds his new life to be rough but strangely appealing - so different from modern life. Amidst much turmoil, Sam eventually realizes that he is torn between the two worlds. Interlander is a thought-provoking tale that examines the impact that technology has on a person's spiritual life.
'Probably its most significant distinguishing feature is that this book is more algebraically oriented than most undergraduate number theory texts.'MAA ReviewsIntroduction to Number Theory is dedicated to concrete questions about integers, to place an emphasis on problem solving by students. When undertaking a first course in number theory, students enjoy actively engaging with the properties and relationships of numbers.The book begins with introductory material, including uniqueness of factorization of integers and polynomials. Subsequent topics explore quadratic reciprocity, Hensel's Lemma, p-adic powers series such as exp(px) and log(1+px), the Euclidean property of some quadratic rings, representation of integers as norms from quadratic rings, and Pell's equation via continued fractions.Throughout the five chapters and more than 100 exercises and solutions, readers gain the advantage of a number theory book that focuses on doing calculations. This textbook is a valuable resource for undergraduates or those with a background in university level mathematics.
Many assume that in international politics, and especially in war, "anything goes." Sherman famously declared war "is all hell." The implication behind the maxim is that in war there is no order, only chaos; no mercy, only cruelty; no restraint, only suffering.Ward Thomas finds that this "anything goes" view is demonstrably wrong. It neither reflects how most people talk about the use of force in international relations nor describes the way national leaders actually use military force. Events such as those in Europe during World War II, in the Persian Gulf War, and in Kosovo cannot be understood, he argues, until we realize that state behavior, even during wartime, is shaped by common understandings about what is ethically acceptable and unacceptable.Thomas makes extensive use of two cases—the assassination of foreign leaders and the aerial bombardment of civilians—to trace the relative influence of norms and interests. His insistence on interconnections between ethical principle and material power leads to a revised understanding of the role of normative factors in foreign policy and the ways in which power and interest shape the international system.
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As Ward Thomas details in The New Dogs of War, militias and paramilitary groups wield greater power than national governments in many countries, while in some war zones private contractors perform missions previously reserved for uniformed troops. Most ominously, terrorist organizations with global reach have come to define the security landscape for even the most powerful nations. Across the first decades of the twenty-first century we have witnessed a dramatic rise in the use of military force by these nonstate actors in ways that have impacted the international system, leading Thomas to undertake this valuable assessment of the state of play at this critical moment. To understand the spre...
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Aerospace Propulsion Systems is a unique book focusing on each type of propulsion system commonly used in aerospace vehicles today: rockets, piston aero engines, gas turbine engines, ramjets, and scramjets. Dr. Thomas A. Ward introduces each system in detail, imparting an understanding of basic engineering principles, describing key functionality mechanisms used in past and modern designs, and provides guidelines for student design projects. With a balance of theory, fundamental performance analysis, and design, the book is specifically targeted to students or professionals who are new to the field and is arranged in an intuitive, systematic format to enhance learning. Covers all engine type...
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