Positive Political Theory I is concerned with the formal theory of preference aggregation for collective choice. The theory is developed as generally as possible, covering classes of aggregation methods that include such well-known examples as majority and unanimity rule and focusing in particular on the extent to which any aggregation method is assured to yield a set of "best" alternatives. The book is intended both as a contribution to the theory of collective choice and a pedagogic tool. Austen-Smith and Banks have made the exposition both rigorous and accessible to people with some technical background (e.g., a course in multivariate calculus). The intended readership ranges from more technically-oriented graduate students and specialists to those students in economics and political science interested less in the technical aspects of the results than in the depth, scope, and importance of the theoretical advances in positive political theory. "This is a stunning book. Austen-Smith and Banks have a deep understanding of the material, and their text gives a powerfully unified and coherent perspective on a vast literature. The exposition is clear-eyed and efficient but never humdrum. Even those familiar with the subject will find trenchant remarks and fresh insights every few pages. Anyone with an interest in contemporary liberal democratic theory will want this book on the shelf." --Christopher Achen, University of Michigan David Austen-Smith is Professor of Political Science, Professor of Economics, and Professor of Management and Strategy, Northwestern University. Jeffrey S. Banks is Professor of Political Science, California Institute of Technology.
A variety of examples in recent literature on philosophy of mind and language raise serious problems for the traditional analysis of belief (and the other so-called propositional attitudes) as a two-term relation between a believer and a proposition. Because of the attractiveness of the traditional analysis and the absence of a clear alternative, such examples raise genuine puzzles about belief. In this lucid and rigorous book, David F. Austin provides a new test case for any theory of the propositional attitudes. Focusing on a puzzle about beliefs that we express using the demonstratives "this" and "that," Austin shows that a key doctrine in the analytic tradition, the doctrine of propositions, is threatened by inconsistency. The author first explains why the traditional doctrine requires individual propositions to accommodate Kripkean intuitions for direct reference. Austin then formulates a deep puzzle about demonstrative belief, using the book's central example, the Two Tubes case, which involves simultaneous, consistent, occurrent, demonstrative beliefs resulting from direct visual perception. Austin argues that none of the leading propositional theories solves this puzzle, nor do the self-attributive views of Chisholm and Lewis, or Kaplan's three-term view. Austin concludes that although his puzzle remains a puzzle, it gives us reason to supplement, rather than abandon, the use of propositions in analyzing thought, and he sketches a three-term, Russian alternative.
Understanding the molecular mechanism of muscle contraction started with the discovery that striated muscle is composed of interdigitating filaments which slide against each other. Sliding filaments and the working-stroke mechanism provide the framework for individual myosin motors to act in parallel, generating tension and loaded shortening with an efficient use of chemical energy. Our knowledge of this exquisitely structured molecular machine has exploded in the last four decades, thanks to a bewildering array of techniques for studying intact muscle, muscle fibres, myofibrils and single myosin molecules. After reviewing the mechanical and biochemical background, this monograph shows how old and new experimental discoveries can be modelled, interpreted and incorporated into a coherent mathematical theory of contractility at the molecular level. The theory is applied to steady-state and transient phenomena in muscle fibres, wing-beat oscillations in insect flight muscle, motility assays and single-molecule experiments with optical trapping. Such a synthesis addresses major issues, most notably whether a single myosin motor is driven by a working stroke or a ratchet mechanism, how the working stroke is coupled to phosphate release, and whether one cycle of attachment is driven by the hydrolysis of one molecule of ATP. Ways in which the theory can be extended are explored in appendices. A separate theory is required for the cooperative regulation of muscle by calcium via tropomyosin and troponin on actin filaments. The book reviews the evolution of models for actin-based regulation, culminating in a model motivated by cryo-EM studies where tropomyosin protomers are linked to form a continuous flexible chain. It also explores muscle behaviour as a function of calcium level, including emergent phenomena such as spontaneous oscillatory contractions and direct myosin regulation by its regulatory light chains. Contraction models can be extended to all levels of calcium-activation by embedding them in a cooperative theory of thin-filament regulation, and a method for achieving this grand synthesis is proposed. Dr. David Aitchison Smith is a theoretical physicist with thirty years of research experience in modelling muscle contractility, in collaboration with experimental groups in different laboratories.
Planet Earth is a minuscule part of our galaxy, the Milky Way, and the only place where we humans can practically live. We all know this, but why are we so slow to fix the major environmental issues which are degrading the quality of life on this one planet? Here Dr Duncan Rouch, Dr David Smith and Professor Andrew Ball answer this question, with an exciting novel response that digs down to explain how we got to this impasse. They also discuss a clear innovative forward strategy, based on a new inclusive definition of environments, that brings in agriculture and industrial companies as key stakeholders for conserving the environment. Anyone interested in environmental problems, including people in agriculture, industry and government, should read this book.
Thank you for visiting our website. Would you like to provide feedback on how we could improve your experience?
This site does not use any third party cookies with one exception — it uses cookies from Google to deliver its services and to analyze traffic.Learn More.