1,918 research outputs found

    Burkhardt Lindner, (ed.), Benjamin Handbuch. Leben – Werk – Wirkung

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    Cet ouvrage monumental se présente comme un « Manuel » sur la vie, l’œuvre et l’influence du penseur juif/allemand Walter Benjamin (1892-1940). Il rassemble les contributions des meilleurs spécialistes germanophones – à quelques exceptions près (le texte de Jeanne-Marie Gagnebin a été traduit du français) – et présente une vue d’ensemble qui n’a pas son équivalent dans les nombreuses publications sur cet auteur. Dans sa préface, Burkhardt Lindner, l’organisateur du volume – avec l’aide de deu..

    Run with the Brownian Hare, Hunt with the Deterministic Hounds

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    : We present analytic results for mean capture time and energy expended by a pack of deterministic hounds actively chasing a randomly diffusing prey. Depending on the number of chasers, the mean capture time as a function of the prey's diffusion coefficient can be monotonically increasing, decreasing, or attain a minimum at a finite value. Optimal speed and number of chasing hounds exist and depend on each chaser's baseline power consumption. The model can serve as an analytically tractable basis for further studies with bearing on the growing field of smart microswimmers and autonomous robots

    Über einige neuseeländische Stratiomyiiden Osten-Sackens im Deutschen Entomologischen Institut in Berlin (Diptera).

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    Der Verfasser berichtet über 11 Arten der Dipteren-Familie Stratiomyiidae. Er gibt Neubeschreibungen von 2 Gattungen und 6 Arten.Nomenklatorische Handlungenamoena Lindner, 1958 (Australoberis), spec. n.parvula Lindner, 1958 (Dysbiota), spec. n.osten-sackeni Lindner, 1958 (Neoexaireta), spec. n.smaragdina Lindner, 1958 (Neoexaireta), spec. n.venusta Lindner, 1958 (Neoexaireta), spec. n.Australoberis Lindner, 1958 (Stratiomyiidae), gen. n.Dysbiota Lindner, 1958 (Stratiomyiidae), gen. n.The author deals with 11 species of Stratiomyiidae (Diptera). He dercribes as new 2 genera and 6 species. Nomenclatural Actsamoena Lindner, 1958 (Australoberis), spec. n.parvula Lindner, 1958 (Dysbiota), spec. n.osten-sackeni Lindner, 1958 (Neoexaireta), spec. n.smaragdina Lindner, 1958 (Neoexaireta), spec. n.venusta Lindner, 1958 (Neoexaireta), spec. n.Australoberis Lindner, 1958 (Stratiomyiidae), gen. n.Dysbiota Lindner, 1958 (Stratiomyiidae), gen. n

    Beiträge zur kombinierten Lichtstreuung in trüben Medien und an rauen Oberflächen

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    Diese Arbeit beschäftigt sich mit der kombinierten Lichtstreuung in trüben Medien und an rauen Oberflächen. Die Arbeit enthält vier vom Autor veröffentlichte Artikel zum Thema der Herstellung rauer Oberflächen und der Wechselwirkung zwischen Lichtstreuung in trüben Medien und an rauen Oberflächen. Zusätzlich erläutert eine Einleitung die Eigenschaften und Charakterisierungsmöglichkeiten rauer Oberflächen und es wird eine Anwendung der gewonnen Erkenntnisse präsentiert.This thesis deals with the combined light scattering in turbid media and on rough surfaces. The work contains four articles published by the author on the subject of the production of rough surfaces and the interaction between light scattering in turbid media and on rough surfaces. In addition, an introduction explains the properties and characterization possibilities of rough surfaces and an application of the knowledge gained is presented

    Circuit and Cellular Mechanisms Facilitate the Transformation from Dense to Sparse Coding in the Insect Olfactory System

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    Transformations between sensory representations are shaped by neural mechanisms at the cellular and the circuit level. In the insect olfactory system, the encoding of odor information undergoes a transition from a dense spatiotemporal population code in the antennal lobe to a sparse code in the mushroom body. However, the exact mechanisms shaping odor representations and their role in sensory processing are incompletely identified. Here, we investigate the transformation from dense to sparse odor representations in a spiking model of the insect olfactory system, focusing on two ubiquitous neural mechanisms: spike frequency adaptation at the cellular level and lateral inhibition at the circuit level. We find that cellular adaptation is essential for sparse representations in time (temporal sparseness), while lateral inhibition regulates sparseness in the neuronal space (population sparseness). The interplay of both mechanisms shapes spatiotemporal odor representations, which are optimized for the discrimination of odors during stimulus onset and offset. Response pattern correlation across different stimuli showed a nonmonotonic dependence on the strength of lateral inhibition with an optimum at intermediate levels, which is explained by two counteracting mechanisms. In addition, we find that odor identity is stored on a prolonged timescale in the adaptation levels but not in the spiking activity of the principal cells of the mushroom body, providing a testable hypothesis for the location of the so-called odor trace

    An insider's guide to working for the federal government: navigating all levels of government as a civil servant or contractor/ Dan Lindner.

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    Includes bibliographical references and index.With simple, to-the-point, explanations of the different branches and agencies of government, insider Dan Lindner guides prospective employees and contractors through the halls of bureaucracy, giving readers everything they need to know to excel in the federal environment.Preface -- 1. The Tricameral Form of Government -- 2. Departments and Agencies -- 3. The Civil Service -- 4. How to Get a Job -- 5. Retirement -- 6. Classified Work -- 7. Contractors -- 8. Staff Work -- 9. Excellence on the Job: Employee Dos and Don'ts -- 10. Managing-Supervision -- 11. Communication -- 12. Meetings and Presentations -- 13. Some Historical Case Studies -- Bibliography -- Index -- About the Author.1 online resource (viii, 196 pages
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