Robert Powell – författare

Applying advances in game theory to the study of nuclear deterrence, Robert Powell examines the foundations of deterrence theory. Game-theoretic analysis allows the author to explore some of the most complex and problematic issues in deterrence theory, including the effects of first-strike advantages, limited retaliation, and the number of nuclear powers in the international system on the dynamics of escalation. With the formalizations he develops, the author is able to demonstrate the fundamental similarity of the two seemingly disparate deterrrent strategies that have evolved in response to the nuclear revolution and the condition of mutually assured destruction: the strategy of limited retaliation. The author argues that the logic underlying both strategies centres on a search for ways to make the use of force or the threat of its use credible when any use of force might escalate to mutual devastation.

Applying advances in game theory to the study of nuclear deterrence, Robert Powell examines the foundations of deterrence theory. Game-theoretic analysis allows the author to explore some of the most complex and problematic issues in deterrence theory, including the effects of first-strike advantages, limited retaliation, and the number of nuclear powers in the international system on the dynamics of escalation. With the formalizations he develops, the author is able to demonstrate the fundamental similarity of the two seemingly disparate deterrrent strategies that have evolved in response to the nuclear revolution and the condition of mutually assured destruction: the strategy of limited retaliation. The author argues that the logic underlying both strategies centres on a search for ways to make the use of force or the threat of its use credible when any use of force might escalate to mutual devastation.

Robert Powell argues persuasively and elegantly for the usefulness of formal models in studying international conflict and for the necessity of greater dialogue between modeling and empirical analysis. Powell makes it clear that many widely made arguments about the way states act under threat do not hold when subjected to the rigors of modeling. In doing so, he provides a more secure foundation for the future of international relations theory. Powell argues that, in the Hobbesian environment in which states exist, a state can respond to a threat in at least three ways: (1) it can reallocate resources already under its control; (2) it can try to defuse the threat through bargaining and compromise; (3) it can try to draw on the resources of other states by allying with them. Powell carefully outlines these three responses and uses a series of game theoretic models to examine each of them, showing that the models make the analysis of these responses more precise than would otherwise be possible. The advantages of the modeling-oriented approach, Powell contends, have been evident in the number of new insights they have made possible in international relations theory.Some argue that these advances could have originated in ordinary-language models, but as Powell notes, they did not in practice do so. The book focuses on the insights and intuitions that emerge during modeling, rather than on technical analysis, making it accessible to readers with only a general background in international relations theory.

The strategic-choice approach has a long pedigree in international relations. In an area often rent by competing methodologies, editors David A. Lake and Robert Powell take the best of accepted and contested knowledge among many theories. With the contributors to this volume, they offer a unifying perspective, which begins with a simple insight: students of international relations want to explain the choices actors make--whether these actors be states, parties, ethnic groups, companies, leaders, or individuals. This synthesis offers three new benefits: first, the strategic interaction of actors is the unit of analysis, rather than particular states or policies; second, these interactions are now usefully organized into analytic schemes, on which conceptual experiments may be based; and third, a set of methodological "bets" is then made about the most productive ways to analyze the interactions.Together, these elements allow the pragmatic application of theories that may apply to a myriad of particular cases, such as individuals protesting environmental degradation, governments seeking to control nuclear weapons, or the United Nations attempting to mobilize member states for international peacekeeping. Besides the editors, the six contributors to this book, all distinguished scholars of international relations, are Jeffry A. Frieden, James D. Morrow, Ronald Rogowski, Peter Gourevitch, Miles Kahler, and Arthur A. Stein. Their work is an invaluable introduction for scholars and students of international relations, economists, and government decision-makers.

This profusely illustrated comprehensive key for identifying amphibians and reptiles from the continental United States and Canada incorporates a wealth of scientific findings.Since the first edition was published in 1998 and the second in 2012, the number of currently recognized species of native amphibians and reptiles in the area covered by this key has increased from 545 to 634 to 685, and the number of established non-native species has increased from 39 to 58 to 67. The increase in native taxa reflects the dynamic nature of modern systematics and the use of new (especially molecular) techniques to elucidate relationships and redefine species boundaries. The increase in non-native species reflects the porosity of the North American borders when it comes to controlling animal imports.The key is easy to use and illustrated with outstanding line drawings that show details of color patterns and structures used for identification. To accommodate the additional taxa, the number of line drawings in this third edition has increased from 257 to 279 to 295. In addition, nine maps illustrate the distributions of species that have been recognized since the publication of maps in the most recent editions of the Peterson Field Guides to the reptiles and amphibians of eastern, central, and western North America. A large number of annotations detail current taxonomic ambiguities or disagreements and the literature cited has been expanded. Collectively these features enhance opportunities to teach and learn the classification and identification of amphibians and reptiles in the continental United States and Canada.

Robert Powell, a founding Board member of the Scientific Coalition for UAP Studies, has studied the UFO subject for 17 years. His work is encapsulated in UFOs: A Scientist Explains What We Know (And Don’t Know) which provides a scientific rationale for the reality of non-terrestrial craft that are intelligently controlled. Powell begins his book by familiarizing the reader with the history of UFOs and he identifies the more enigmatic and interesting UFO sightings. He examines the characteristics of these sightings that argue against a prosaic explanation: extreme acceleration, electromagnetic interference, bending light, no obvious propulsion mechanisms, and a lack of interaction with the atmosphere. Powell discusses the recent events that have caused our government to change the term from UFO to UAP. Included is information never before released indicating the government possesses not just two videos but five videos from 2015 of UFOs operating in the vicinity of the USS Roosevelt nuclear aircraft carrier.Powell’s later chapters in the book discuss the extraterrestrial hypothesis considering the thousands of exoplanets that have been discovered in the last twenty years. Powell challenges the reader to consider all the implications that must be considered if intelligent life discovers us first. He looks at how we as individuals and as a society react to UFOs. He documents actions taken by our military that include instances when we have fired on UFOs. Powell argues that it is time for a change in the study of UFOs. The phenomenon has been with us for 75 years and we have learned very little as the decades have passed. The author makes the case for what needs to be done going forward. The solution he proposes will require a paradigm shift in our thinking and his book provides the information needed to understand that paradigm shift.

This book uncovers a secret stream of wisdom flowing through the heart of Christianity: the feminine principle known in Greek as 'Sophia'. Robert Powell surveys the teachings associated with this treasure of Christianity's mystical past.

The birth of eurythmy, an expressive approach to movement and dance originated by Rudolf Steiner, was a little over a century ago. This book invites us to reconnect with the sacred through life-enhancing movement and gesture. The many exercises offer a training in eurythmy which will help refine the qualities of the human soul.The book is illustrated with helpful diagrams demonstrating the gestures of eurythmy, and fully explores the philosophical background to this unique art.

'We can conceive of the active heavenly sphere mirrored in the Earth.'-- Rudolf Steiner'As above, so below' is the foundation of all star wisdom. It was known in ancient times that there are correspondences between the macrocosm (heavenly realm) and the microcosm (human being) and the Earth. Astrogeographia is a modern form of that ancient star wisdom.This book explores the direct correspondences between the starry heavens and our earthly globe, with mathematical precision.

Estelle Isaacson is a contemporary seer who has been graced with many visions around Sophia, goddess of wisdom. Part 1 of this book shares a series of fourteen visions which lead the reader into a direct connection with the mystery of Sophia.In Part 2, Robert Powell explores the cosmic dimension of Sophia and her role as bearer of a new spiritual culture: the Rose of the World, a culture founded on love and wisdom.