The first part of this research monograph discusses general properties of G-ENRBs - Euclidean Neighbourhood Retracts over B with action of a compact Lie group G - and their relations with fibrations, continuous submersions, and fibre bundles. It thus addresses equivariant point set topology as well as equivariant homotopy theory. Notable tools are vertical Jaworowski criterion and an equivariant transversality theorem. The second part presents equivariant cohomology theory showing that equivariant fixed point theory is isomorphic to equivariant stable cohomotopy theory. A crucial result is the sum decomposition of the equivariant fixed point index which provides an insight into the structure of the theory's coefficient group. Among the consequences of the sum formula are some Borsuk-Ulam theorems as well as some folklore results on compact Lie-groups. The final section investigates the fixed point index in equivariant K-theory. The book is intended to be a thorough and comprehensive presentation of its subject. The reader should be familiar with the basics of the theory of compact transformation groups. Good knowledge of algebraic topology - both homotopy and homology theory - is assumed. For the advanced reader, the book may serve as a base for further research. The student will be introduced into equivariant fixed point theory; he may find it helpful for further orientation.
The first part of this research monograph discusses general properties of G-ENRBs - Euclidean Neighbourhood Retracts over B with action of a compact Lie group G - and their relations with fibrations, continuous submersions, and fibre bundles. It thus addresses equivariant point set topology as well as equivariant homotopy theory. Notable tools are vertical Jaworowski criterion and an equivariant transversality theorem. The second part presents equivariant cohomology theory showing that equivariant fixed point theory is isomorphic to equivariant stable cohomotopy theory. A crucial result is the sum decomposition of the equivariant fixed point index which provides an insight into the structure of the theory's coefficient group. Among the consequences of the sum formula are some Borsuk-Ulam theorems as well as some folklore results on compact Lie-groups. The final section investigates the fixed point index in equivariant K-theory. The book is intended to be a thorough and comprehensive presentation of its subject. The reader should be familiar with the basics of the theory of compact transformation groups. Good knowledge of algebraic topology - both homotopy and homology theory - is assumed. For the advanced reader, the book may serve as a base for further research. The student will be introduced into equivariant fixed point theory; he may find it helpful for further orientation.
Hanno Hardt has thoroughly revised and expanded his 'pre-history' of communication research in the United States. With the notable addition of Karl Marx's journalism-focused writings and a new foreword by James W. Carey, this edition covers intellectual contributions from several German theorists in the late nineteenth and early twentieth centuries, as well as first-generation U.S. sociologists who were influenced by this scholarship. A new concluding chapter explores the continuing influence of German social thought and the contemporary shift of paradigms in U.S. communication research, including approaches such as critical (Marxist) and cultural studies.
Logical Data Modeling offers business managers, analysts, and students a clear, basic systematic guide to defining business information structures in relational database terms. The approach, based on Clive Finkelstein’s business-side Information Engineering, is hands-on, practical, and explicit in terminology and reasoning. Filled with illustrations, examples, and exercises, Logical Data Modeling makes its subject accessible to readers with only a limited knowledge of database systems. The book covers all essential topics thoroughly but succinctly: entities, associations, attributes, keys and inheritance, valid and invalid structures, and normalization. It also emphasizes communication with business and database specialists, documentation, and the use of Visible Systems' Visible Advantage enterprise modeling tool. The application of design patterns to logical data modeling provides practitioners with a practical tool for fast development. At the end, a chapter covers the issues that arise when the logical data model is translated into the design for a physical database.
Located in the geographical center of Berlin, the neighboring boroughs of Friedrichshain and Kreuzberg shared a history and identity until their fortunes diverged dramatically following the construction of the Berlin Wall, which placed them within opposing political systems. This revealing account of the two municipal districts before, during and after the Cold War takes a microhistorical approach to investigate the broader historical trajectories of East and West Berlin, with particular attention to housing, religion, and leisure. Merged in 2001, they now comprise a single neighborhood that bears the traces of these complex histories and serves as an illuminating case study of urban renewal, gentrification, and other social processes that continue to reshape Berlin.
Parallel transmission enables control of the RF field in high-field Magnetic Resonance Imaging (MRI). However, the approach has also caused concerns about the specific absorption rate (SAR) in the patient body. The present work provides new concepts for SAR prediction. A novel approach for generating human body models is proposed, based on a water-fat separated MRI pre-scan. Furthermore, this work explores various approaches for SAR reduction.
As the first comprehensive encyclopedic survey of Western architectural theory from Vitruvius to the present, this book is an essential resource for architects, students, teachers, historians, and theorists. Using only original sources, Kruft has undertaken the monumental task of researching, organizing, and analyzing the significant statements put forth by architectural theorists over the last two thousand years. The result is a text that is authoritative and complete, easy to read without being reductive.
Most recently, various groups have drawn attention to their political causes by demonstratively breaking the law, whether it is violating compulsory education in Fridays for Future demonstrations or refusing to abide by pandemic containment measures among critics of the Corona policy. This book explores what lies behind these rule-breaking events: supporters of the Fridays for Future movement, while dissatisfied with climate policy, are well integrated into the political system; people who may not abide by Corona rules, on the other hand, sometimes exhibit considerable alienation from and distrust of the political system.
Agriculture has been among the toughest political battlegrounds in postwar Japan and represents an ideal case study in institutional stability and change. Inefficient land use and a rapidly aging workforce have long been undermining the economic viability of the agricultural sector. Yet vested interests in the small-scale, part-time agricultural production structure have obstructed major reforms. Change has instead occurred in more subtle ways. Since the mid-1990s, a gradual reform process has dismantled some of the core pillars of the postwar agricultural support and protection regime. Harvesting State Support analyzes this process by shifting the analytical focus to the local level. Drawing on extensive qualitative field research, Hanno Jentzsch investigates how local actors, including farmers, local governments, and local agricultural cooperatives, have translated abstract policies into local practice. Showing how local variants are constructed through recombining national reforms with the local informal institutional environment, Harvesting State Support reveals new links between agricultural reform and other shifts in Japan’s political economy.
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