3,447 research outputs found

    Partial-Wave Analyses of all Proton-Proton and Neutron-Proton Data Below 500 MeV

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    In 1993 the Nijmegen group published the results of energy-dependent partial-wave analyses (PWAs) of the nucleon-nucleon (NN) scattering data for laboratory kinetic energies below Tlab=350 MeV (PWA93). In this talk some general aspects, but also the newest developments on the Nijmegen NN PWAs are reported. We have almost finished a new energy-dependent PWA and will discuss some typical aspects of this new PWA; where it differs from PWA93, but also what future developments might be, or should be.Comment: Presentation at the 19th European Conference on Few-Body Problems in Physics, Groningen, The Netherlands, 23-27 August 2004. 4 pages REVTeX4, no figure

    Book Review: Muhammad Faishal Ibrahim and Peter J. Goldrick: Shopping Choices with Public Transport Options

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    This book has been motivated by the observation that by and large studies of spatial shopping behaviour have not taken into account transport mode, while most transport studies ignored the attributes of shopping centres. The study, described in this book represents an attempt to bridge this gap. To that effect, the authors try to identify and analyse the importance of different factors, which are taken into account by shoppers in their shopping centre choice in regions with a wide choice of public transport. In addition, they analyse shoppers' perceptions of transport modes in the context of shopping trips. They start however with a review of trends of retail decentralisation and transport planning

    Condensate Heating by Atomic Losses

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    Atomic Bose-Einstein condensate is heated by atomic losses. Predicted depletion ranges from 1% for a uniform 3D condensate to around 10% for a quasi-1D condensate in a harmonic trap.Comment: 4 pages in RevTex, 1 eps figur

    \u3cb\u3ePersonal Reflection:\u3c/b\u3e Playing for SoTL Impact: A Personal Reflection

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    Excerpt: SoTL scholars (for example, Poole, 2009; Weston, Berthiaume, Matsushita, Tovar, & Timmermans, 2008) have found using a lens of micro-meso-macro to represent individual, departmental/institutional and national/disciplinary/interdisciplinary impacts to be helpful in considering SoTL work at various levels and where there might be unexplored opportunities

    J Med Artif Intell

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    CC999999/ImCDC/Intramural CDC HHS/United States2020-05-30T00:00:00Z32478331PMC72610347791vault:3556

    Transport, atom blockade and output coupling in a Tonks-Girardeau gas

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    Recent experiments have demonstrated how quantum-mechanical impurities can be created within strongly correlated quantum gases and used to probe the coherence properties of these systems [S. Palzer, C. Zipkes, C. Sias, and M. K\"ohl, Phys. Rev. Lett. 103, 150601 (2009).]. Here we present a phenomenological model to simulate such an output coupler for a Tonks-Girardeau gas that shows qualitative agreement with the experimental results for atom transport and output coupling. Our model allows us to explore nonequilibrium transport phenomena in ultracold quantum gases and leads us to predict a regime of atom blockade, where the impurity component becomes localized in the parent cloud despite the presence of gravity. We show that this provides a stable mixed-species quantum gas in the strongly correlated limit

    The Impact of Demographic Change on the Accessibility to Public Services for the Elderly on Children of Hannover, Germany

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    Late in 2009, the German government conducted an exercise to determine population trends for the next 50 years. This study indicated that the German population, which is approximately 82 million, is expected to decrease by 12 to 17 million people as well as experience a significant shift in its demographic profile (Statitistisches Bundesamt, 2009). The most significant finding from this exercise is the projection for a shift in the share of senior citizens and children with respect to the economically active population; children and seniors are expected to account for half of the entire population of Germany, whereas they currently only represent 40%. Additionally, the ratio of senior citizens to children is expected to increase to 2:1 by the year 2040, indicating a trend towards an ageing population. With this expected declining population and changes in the age pyramid, a renewed focus on planning for future investments has been initiated with an eye on effective and efficient resource allocation of social services

    Promotion of LGBTI Rights Overseas: An Overview of EU and US Experiences

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    The essay problematizes the incorporation of LGBTI rights promotion into the US and EU foreign policies. First, the paper examines the two actors’ key documents, speeches, and policies devoted to the promotion of LGBTI rights abroad, the similarities and differences between the two actors’ approaches, attending to the tendencies of their evolution and the ongoing development. Second, the article discusses the internal conditions in target countries that are conducive to the success and failure of international support of LGBTI rights. Finally, the study makes a critical overview of the measures that are argued to be necessary to increase the efficiency of LGBTI rights promotion in countries with most negative current trends in and/or poorest records on LGBTI rights
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