1,060 research outputs found

    Wo sterben Menschen?: Zur Frage des Sterbens in Institutionen

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    Zusammenfassung: In der Gesellschaft besteht eine große Differenz zwischen der Anzahl der Menschen, die sich als Sterbeort ihr Zuhause wĂŒnschen, und der Zahl der FĂ€lle, in denen sich dieser Wunsch realisieren lĂ€sst. Nicht das Zuhause, sondern eine Institution wie das Krankenhaus, Pflege- oder Altenheim ist in westlichen Gesellschaften der hĂ€ufigste Sterbeort. Doch wie verteilen sich die Sterbeorte wirklich? Zeigen sich soziale RegelmĂ€ĂŸigkeiten des Sterbens in den verschiedenen Sterbeorten? Der Beitrag gibt einen Überblick ĂŒber den Sterbeort als soziales PhĂ€nomen. Vor dem Hintergrund des aktuellen Forschungsstands wird der zeitgenössische Diskurs ĂŒber die Institutionalisierung des Sterbens kritisch diskutier

    Using quantum oblivious transfer to cheat sensitive quantum bit commitment

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    It is well known that unconditionally secure bit commitment is impossible even in the quantum world. In this paper a weak variant of quantum bit commitment, introduced independently by Aharonov et al. [STOC, 2000] and Hardy and Kent [Phys. Rev. Lett. 92 (2004)] is investigated. In this variant, the parties require some nonzero probability of detecting a cheating, i.e. if Bob, who commits a bit b to Alice, changes his mind during the revealing phase then Alice detects the cheating with a positive probability (we call this property binding); and if Alice gains information about the committed bit before the revealing phase then Bob discovers this with positive probability (sealing). In our paper we give quantum bit commitment scheme that is simultaneously binding and sealing and we show that if a cheating gives epsilon advantage to a malicious Alice then Bob can detect the cheating with a probability Omega(epsilon^2). If Bob cheats then Alice's probability of detecting the cheating is greater than some fixed constant lambda>0. This improves the probabilities of cheating detections shown by Hardy and Kent and the scheme by Aharonov et al. who presented a protocol that is either binding or sealing, but not simultaneously both. To construct a cheat sensitive quantum bit commitment scheme we use a protocol for a weak quantum one-out-of-two oblivious transfer

    Season Tickets on Sale for 1988-89 UD Art Series

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    News release announces that tickets are now on sale for the 1988-89 University of Dayton Arts Series

    To Kick Against the Pricks: An Examination of the Oresteia and the Acts of the Apostles

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    The major themes found in the Oresteia and the books of Luke and Acts of the Apostles are compared. By focusing on the similarities found in the themes of Justice, Religion, and New versus Old, the reader may determine if the phrase in question is being used as a literary allusion in the book of Acts of the Apostles to the Oresteia trilogy. The author believes this to be the case and believes that to arrive at a full understanding of the literary meaning of the phrase in question, an understanding of the major themes of the Oresteia is necessary

    Preparation of integrated passive microwave devices through inkjet printing

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    Barium strontium titanate (BST) is a promising material for passive tunable microwave devices such as phase shifters or tunable matching networks. This publication covers the preparation of BST thick-films for microwave applications through inkjet printing. Two barium strontium titanate (BST) inks were prepared, printed on alumina substrates and sintered at different temperatures. The first ink was prepared with pure BST and sintered between 1100°C and 1200°C. The second ink was prepared with a BST–ZnO–B2O3 composition and was suitable to reduce the sintering temperature down to 800°C. The microstructure of the thick-films reveals the evolution of grain growth with increasing sintering temperature in the thick-films. Furthermore, a reaction with the substrate was observed for both inks at high sintering temperatures. The microwave characterization of the thick-films shows that for the permittivity and the tunability of the films, the effect of grain growth and reaction with the substrate compete against each other. Hence, the optimal microwave properties were achieved at a transition temperature, where first additional phases could already be observed. Even though, the properties are poorer for lower sintering temperatures, the investigations show that the preparation of silver- or gold-based metal–insulator–metal (MIM) structures through inkjet printing is possible with this composition. This allows various new design concepts for partly or fully inkjet printed passive microwave devices. Furthermore, it gives the opportunity for a future integration of passive tunable microwave devices in a low temperature co-fired ceramic (LTCC) fabrication process.</jats:p
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