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Experiences and Visions
(2007)
Stellar winds play an important role for the evolution of massive stars and their cosmic environment. Multiple lines of evidence, coming from spectroscopy, polarimetry, variability, stellar ejecta, and hydrodynamic modeling, suggest that stellar winds are non-stationary and inhomogeneous. This is referred to as 'wind clumping'. The urgent need to understand this phenomenon is boosted by its far-reaching implications. Most importantly, all techniques to derive empirical mass-loss rates are more or less corrupted by wind clumping. Consequently, mass-loss rates are extremely uncertain. Within their range of uncertainty, completely different scenarios for the evolution of massive stars are obtained. Settling these questions for Galactic OB, LBV and Wolf-Rayet stars is prerequisite to understanding stellar clusters and galaxies, or predicting the properties of first-generation stars. In order to develop a consistent picture and understanding of clumped stellar winds, an international workshop on 'Clumping in Hot Star Winds' was held in Potsdam, Germany, from 18. - 22. June 2007. About 60 participants, comprising almost all leading experts in the field, gathered for one week of extensive exchange and discussion. The Scientific Organizing Committee (SOC) included John Brown (Glasgow), Joseph Cassinelli (Madison), Paul Crowther (Sheffield), Alex Fullerton (Baltimore), Wolf-Rainer Hamann (Potsdam, chair), Anthony Moffat (Montreal), Stan Owocki (Newark), and Joachim Puls (Munich). These proceedings contain the invited and contributed talks presented at the workshop, and document the extensive discussions.
Leo Baeck (1873-1956) can be considered to be one of the most important proponents of German Jewry. Over the course of his life, he strove constantly to combine tradition and modernity within Judaism. Baeck educated young rabbis at Berlin's "Hochschule für die Wissenschaft des Judentums" (College for the Science of Judaism) and sought dialogue between Christianity, Islam, and other religions. Indebted to Baeck's legacy the Abraham Geiger College dedicated its annual study conference in 2006 to this brilliant Jewish thinker - to mark the fiftieth anniversary of his death on November 2, 1956. This volume celebrates the wide spectrum of Leo Baeck's heritage.
n an international context, public management arrangements differ significantly from country to country, but also regionally and locally. One reason for these differences may be differences in culture resulting in differing views of the state and its institutions. This may sound trivial, but it becomes highly important when public management reform models are proposed and transferred from one country to others such as was (and still is) the case with, for example, the new public management. Scholars in public management as well as internationally acting practitioners should be aware of the impact culture has on the possibilities and limits of concept transfers between different jurisdictions. Having said this, one precondition for a better consideration of cultural elements in public management reforms is a better understanding of culture itself. Among the public management community, cultural theory has gained considerable attention. There are, however, other concepts for the analysis of cultural facts that may be of interest to the subject, too. In the book, cultural (including organizational culture of public organizations) influences on public management and its reform are explored. Articles address definitions and conceptualizations of culture in the context of public management, cultural artifacts in public management and gives examples of cultural elements in public management from various countries. The volume helps to structure the discussion of cultural elements and points out approaches to study and incorporate cultural aspects in public management research and debate.