264 research outputs found
Large-signal electronically variable gain techniques
No full textThesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1982.MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING.Vita.Includes bibliographical references.by Max Wolff Hauser.M.S
Layering of magnetic nanoparticles at amorphous magnetic templates with perpendicular anisotropy
No full textWe reveal the assembly of magnetite nanoparticles of sizes 5 nm, 15 nm and 25 nm from dilute water-based ferrofluids onto an amorphous magnetic template with out-of-plane anisotropy. From neutron reflectometry experiments we extract density profiles and show that the particles self-assemble into layers at the magnetic surface. The layers are extremely stable against cleaning and rinsing of the substrate. The density of the layers is determined by and increases with the remanent magnetic moment of the particles.Changes in author lineup since manuscript version in thesis: Sebastian George added, Max Wolff now last author.</p
Political responsibility for a globalised world : after Levinas' humanism /
No full textThe aim of this book is to reflect on the complex practice of responsibility within the context of a globalised world and contemporary means of action. Levinas' exploration of the ethical serves as point of entry and is shown to be seeking inter-cultural political relevance through engagement with the issues of postcoloniality and humanism. Yet, Levinas fails to realise the ethical implications of the inevitable instrumental mediation between ethical meaning and political practice. With recourse to Weber, Apel and Ricoeur, Ernst Wolff proposes a theory of strategic co-responsibility for the uncertain global context of practice.Includes bibliographical references.The aim of this book is to reflect on the complex practice of responsibility within the context of a globalised world and contemporary means of action. Levinas' exploration of the ethical serves as point of entry and is shown to be seeking inter-cultural political relevance through engagement with the issues of postcoloniality and humanism. Yet, Levinas fails to realise the ethical implications of the inevitable instrumental mediation between ethical meaning and political practice. With recourse to Weber, Apel and Ricoeur, Ernst Wolff proposes a theory of strategic co-responsibility for the uncertain global context of practice.Online resource; title from PDF title page (ebrary, viewed February 17, 2015).Doing justice to responsibility : the primordial political nature of Levinas' philosophy -- part 1. Ethics after the colonies : the global scope of Levinas' political thought. Ethnography, atheism, decolonisation -- The range of the political : decolonisation as a case in point -- Levinas post-anti-humanist humanism and after -- part 2. Levinas' post-anti-humanist humanism and after. Humanism and anti-humanism in Levinas' reflection on Jewish education -- Levinas' post-anti-humanist humanism : Humanism of the other -- After Levinas : the risk of irresponsible responsibility -- part 3. Political responsibility for a globalised world. Levinas and Max Weber on being called for politics -- Towards a post-Levinasian understanding of responsibility : the Weberian contribution of Apel -- Ricoeur's contribution to a notion of political responsibility for a globalised world -- Conclusion : for a "good enough" justice.JSTO
Asymptotic behavior and Denjoy-Wolff theorems for Hilbert metric nonexpansive maps
No full textWe study the asymptotic behavior of fixed point free Hilbert metric nonexpansive maps on bounded convex domains. For such maps, we prove that the omega limit sets are contained in a convex subset of the boundary when the domain is either polyhedral or two dimensional. Similar results are obtained for several classes of positive operators defined on closed cones, including linear maps, affine linear maps, max-min operators, and reproduction-decimation operators. We discuss the relationship between these results and other Denjoy-Wolff type theorems. In particular, we investigate the interaction of nonexpansive maps with the horofunction boundary in the Hilbert geometry and in finite dimensional normed spaces.Ph.D.Includes bibliographical references (p. 82-85)
Power and law in enlightened absolutism : Carl Gottlieb Svarez' theoretical and practical approach
No full textThe term Enlightened Absolutism reflects a certain tension between its two components. This tension is in a way a continuation of the dichotomy between power on one hand and law on the other. The present paper shall provide an analysis of these two concepts from the perspective of Carl Gottlieb Svarez, who, in his position as a high-ranking Prussian civil servant and legal reformist, has had unparalleled influence on the legislative history of the
Prussian states towards the end of the 18th century. Working side-by-side with Johann Heinrich Casimir von Carmer, who held the post of Prussian minister of justice from 1779 to 1798, Svarez was able to make use of his talent for reforming and legislating. From 1780 to 1794 he was primarily responsible for the elaboration of the codification of the Prussian private law – the “Allgemeines Landrecht für die Preußischen Staaten” in 1794. In the present paper, Svarez’ approach to the relation between law and power shall be analysed on two different levels. Firstly, on a theoretical level, the reformist’s thoughts and reflections as laid down in his numerous works, papers and memorandums, shall be discussed. Secondly, on a practical level, the question of the extent to which he implemented his ideas in Prussian legal reality shall be explored
Eduard Gans Family Collection 1796-1982
No full textThe collection contains information about the Gans family as well as materials related to the jurist Eduard Gans and his descendant Edward Gans, a numismatist.Series I: Genealogy of Gans and Lande Families contains family trees, correspondence and other genealogical materials about the Gans and Lande families.Series II: Eduard Gans contains materials by and about Eduard Gans, such as photographs, articles, speeches and obituaries.Series III: Gans Family Correspondence contains genealogical correspondence as well as correspondence concerning foundation of a Jewish publishing firm, (1936-1937) with Leon Algazi, Benno Balan, Paul Emden, Edmond Fleg, Victor Gollencz, Oskar Guttmann, Ernst Hainauer, Emil Hauser, Henri Hinrichsen, Paul Hirsch, Industrie und Handelskammer, Berlin, Gerhart Jacoby, Alfred Kalmus, Paul Kern, S. Kramarsky, Leonid Kreutzer, Maria Lanckoronska, Frederic Lederer, Otto Lilien, Kurt Loewenstein, Darius Milhaud, M. Perlzweig, Franz Roizenstein, Robert Robitschek, Martin Rosenblueth, Richard Schauer, Kurt Singer, Arthur Stern, Bruno Walter, Max Warburg, Karl Wiener, Hans Wolff.The bulk of the collection consists of Series IV: Numismatics and contains Edward Gans' correspondence related to numismatics.The following individuals are mentioned in this collection: Gans, Edward; Gans, Isaac Jacob; Algazi, Leon; Balan, Benno; Emden, Paul; Fleg, Edmond; Gollancz, Victor; Guttmann, Oskar; Hainauer, Ernst; Hauser, Emil; Hinrichson, Henri; Hirsch, Paul; Jacoby, Gerhardt; Kalmus, Alfred; Kern, Paul; Kramarsky, S.; Kreutzer, Leonid; Lanckoronska, Maria; Laube, Heinrich; Lederer, Frederic; Lilien, Otto; Loewenstein, Kurt; Mendelssohn-Bartholdy, Felix; Milhaud, Darius; Perlzweig, rabbi; Roizenstein, Franz; Rosenblueth, Martin; Schaaf, Friedrich; Schauer, Richard; Singer, Kurt; Stern, Arthur; Walter, Bruno; Warburg, Max; Wiener, Karl; Wolff, HansThe following families are mentioned in this collection: Gans family; Lande familyEduard Gans (1798-1839) was a jurist and professor of law in Berlin. Together with Leopold Zunz he founded the Society for Jewish Culture and Science in 1819. He was a disciple of Hegel and converted to Christianity in 1825.Edward Gans was a banker in Germany. After he immigrated to the US he became a dealer of ancient coins and fine arts of various kinds. He donated his coin collection together with an archive containing book publications on seals and similar objects, sets of archaeological magazines, and his correspondence with experts in various fields to the Department of Near Eastern Studies of the University of California at Berkeley.Photographs removed to Photograph Collectiondigitize
Chemical state and atomic structure in stoichiovariants photochromic oxidized yttrium hydride thin films
No full textJP, IA, and SZK acknowledge SWEB project 101087367 funded by the HORIZON-WIDERA-2022-TALENTS-01-01. The research leading to this result has been supported by the RADIATE project under the Grant Agreement 824096 from the EU Research and Innovation programme HORIZON 2020. Support of experiments using the tandem accelerator at Uppsala University by the Swedish Research Council VR-RFI (grant # 2019-00191) is gratefully acknowledged. Dmitrii Moldarev acknowledges a postdoctoral fellowship by the foundation Olle Engkvist Byggmästare (grant # 207-0423).The Institute of Solid State Physics of the University of Latvia, which as a center of excellence has received funding from the European Union framework program Horizon 2020 H2020-WIDESPREAD-01-2026-2017-TeamingPhase2 within the framework of grant agreement No. 739508 of the CAMART2 project.We investigate the effective oxidation state and local environment of yttrium in photochromic YHO thin film structures produced by e-beam evaporation, along with their chemical structure and optical properties. Transmission electron microscopy images reveal the oxidized yttrium hydride thin film sample exhibiting a three-layered structure. X-ray photoelectron spectroscopy (XPS) measurements manifest that the oxidation state of yttrium is modified, dependent on the film's composition/depth. Furthermore, Ion beam analysis confirms that this variability is associated with a composition gradient within the film. X-ray absorption spectroscopy at the Y K-edge reveals that the effective oxidation state of yttrium is approximately +2.5 in the transparent/bleached state of YHO. Spectroscopic ellipsometry investigations showed a complex non-linear optical depth profile of the related sample confirming the dominant phase of YHO and the presence of Y2O3 and Y towards the middle of the film. The first evidence of (n; k) dispersion curves for e-beam sputtered photochromic YHO thin films are reported for transparent and dark states. © 2024 the author(s), published by De Gruyter, Berlin/Boston. --//-- This is an open-access article Arslan, Halil, Kuzmin, Alexei, Aulika, Ilze, Moldarev, Dmitrii, Wolff, Max, Primetzhofer, Daniel, Pudza, Inga, Kundzins, Karlis, Sarakovskis, Anatolijs, Purans, Juris and Karazhanov, Smagul Zh. "Chemical state and atomic structure in stoichiovariants photochromic oxidized yttrium hydride thin films" Zeitschrift für Physikalische Chemie, vol. 238, no. 11, 2024, pp. 2075-2100. https://doi.org/10.1515/zpch-2023-0507.HORIZON-WIDERA-2022-TALENTS-01-01, project 101087367 (SWEB); EU Research and Innovation programme HORIZON 2020 824096, project RADIATE; foundation Olle Engkvist Byggmästare 207_0423; Swedish Research Council VR-RFI 2019_00191; the Institute of Solid State Physics of the University of Latvia, which as a center of excellence has received funding from the European Union framework program Horizon 2020 H2020-WIDESPREAD-01-2026-2017-TeamingPhase2 within the framework of grant agreement No. 739508 of the CAMART2 project
Research in medical education - chances and challenges : international conference, 20th - 22nd May 2009, Heidelberg ; congress abstracts
No full textCello techniques and performing practices in the nineteenth and early twentieth centuries
No full textThis thesis comprises a study of cello performance practices throughout the nineteenth century and into the early decades of the twentieth. It is organised in terms of the increasing complexity of the concepts which it examines, as they are to be found in printed and manuscript music, instrumental methods and larger treatises, early recordings, concert reviews and pictures. Basic posture is considered along with different ways of holding the
bow. The development of the tail-pin shows that even when it was widely used, the older posture was still referred to as a model. Some implications for tone quality and tonal
projection are considered in the light of the shape of the arms. Some connections between the cellist's posture and that recommended by etiquette books are explored. The
functionality of the left hand and arm, and the development of modem scale fingerings, show that there was a considerable period of overlap between newer and older practices, with modern scale fingerings evolving over a long period of time. Similarly, views on the function of the right wrist in bowing are shown to change gradually, moving towards a more active upper arm movement with less extreme flexibility of the wrist. Two central expressive techniques especially associated with string playing arc considered in the context of the cello, namely vibrato and portamento. These topics are examined in the light of written indications in music, recommendations in cello treatises, and the practices evidenced in early recordings. The sources for this study can be brought into an overall
framework of a constant dialogue between `theory', as expressed in verbal instructions to the learner, or general a priori reflections about the cello, and `practice', manifested in performing editions and early recordings, or in individual acts of reception. A wide divergence is noted, both between theory and practice in general, and in terms of different styles of playing observable at any one time. It is suggested that tensions between practice
and critical disapproval can be resolved in terms of Lacanian discourse. Several test cases are used in order to compare several different recordings of the same works. The question of the musical character of the cello is discussed in terms of widespread assumptions about its gendered identity. A wide range of sources suggest that this moved from a straightforwardly `masculine' identity expressed through a controlling, elevated eloquence to a less clearly defined one, incorporating the 'feminine', with a greater stress on uninhibited emotional expression. Some performance implications for this change of view are pursued with respect to specific repertoires. Broad conclusions stress the importance of the diversity of performance practices as opposed to unifying generalisations
Evolução química e história de formação estelar no universo local
No full textTese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Física, Florianópolis, 2010Analisamos as galáxias do Sloan Digital Sky Survey com o nosso código de síntese espectral Starlight. O Starlight acha a combinação de populações estelares simples de diferentes idades e metalicidades que melhor modela o espectro de uma galáxia. Ele permite derivar vários parâmetros associados a uma galáxia, como a massa em estrelas, a história de formação estelar e a evolução química. A partir do espectro residual puramente nebular (subtraindo do espectro observado o modelado), medimos as linhas de emissão, das quais derivamos propriedades do gás dentro das galáxias. Estudamos a evolução das galáxias com formação estelar. Constatamos que as galáxias de maior massa formaram suas estrelas e seus metais mais rapidamente. A evolução da metalicidade das estrelas é estudada diretamente. Calibramos também a taxa de formação estelar atual medida pela síntese com a medida pela luminosidade de Halfa. Derivamos a relação massa estelar-metalicidade estelar (M*-Z*) em diferentes redshifts. Esta é a primeira vez que a relação M*-Z* é calculada para o mesmo conjunto de galáxias. Observamos que a metalicidade estelar observada tem uma evolução compatível com um modelo simples de evolução química de caixa fechada. Para as galáxias classificadas como LINERs, encontramos que a luminosidade observada em Halfa é compatível com o número de fótons ionizantes emitidos pelas populações estelares velhas dessas galáxias. Este resultado implica em uma profunda revisão da taxa de atividade nuclear nas galáxias do Universo local
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