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Search Results: 1 - 10 of 20695 matches for " Stephen Q Muth "
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The Protective Effect of Male Circumcision as a Faith Lift for the Troubled Paradigm of HIV Epidemiology in Sub-Saharan Africa
John J Potterat ,Devon D Brewer,Stephen Q Muth,Stuart Brody
PLOS Medicine , 2006, DOI: 10.1371/journal.pmed.0030064
Abstract:
A Large Specific Deterrent Effect of Arrest for Patronizing a Prostitute
Devon D. Brewer, John J. Potterat, Stephen Q. Muth, John M. Roberts
PLOS ONE , 2006, DOI: 10.1371/journal.pone.0000060
Abstract: Background Prior research suggests that arrest, compared with no police detection, of some types of offenders does not decrease the chances they will reoffend. Methodology/Principal Findings We assessed the specific deterrent effect of arrest for patronizing a street prostitute in Colorado Springs by comparing the incidence of arrest for clients of prostitutes first detected through public health surveillance with the incidence of rearrest for clients first detected by police arrest. Although these sets of clients were demographically and behaviorally similar, arrest reduced the likelihood of a subsequent arrest by approximately 70%. In other areas of the United States, arrest did not appear to displace a client's patronizing. Conclusions/Significance Our results suggest that apprehending clients decreases their patronizing behavior substantially.
Particle number conservation in quantum many-body simulations with matrix product operators
Dominik Muth
Physics , 2011, DOI: 10.1088/1742-5468/2011/11/P11020
Abstract: Incorporating conservation laws explicitly into matrix product states (MPS) has proven to make numerical simulations of quantum many-body systems much less resources consuming. We will discuss here, to what extent this concept can be used in simulation where the dynamically evolving entities are matrix product operators (MPO). Quite counter-intuitively the expectation of gaining in speed by sacrificing information about all but a single symmetry sector is not in all cases fulfilled. It turns out that in this case often the entanglement imposed by the global constraint of fixed particle number is the limiting factor.
Graded skew Specht modules and cuspidal modules for Khovanov-Lauda-Rouquier algebras of affine type A
Robert Muth
Mathematics , 2014,
Abstract: Kleshchev, Mathas and Ram (2012) gave a presentation for graded Specht modules over Khovanov-Lauda-Rouquier algebras of finite and affine type A. We show that this construction can be applied more generally to skew shapes to give a presentation of graded skew Specht modules, which arise as subquotients of restrictions of Specht modules. As an application, we show that cuspidal modules associated to a balanced convex preorder in affine type A are skew Specht modules for certain hook shapes.
X-ray mapping the outer regions of galaxy clusters at z= 0.23 and 0.45
Q. Daniel Wang,Stephen Walker
Physics , 2014, DOI: 10.1093/mnras/stu064
Abstract: The thermal, chemical, and kinematic properties of the potentially multi-phase circum/inter-galactic medium at the virial radii of galaxy clusters remain largely uncertain. We present an X-ray study of Abell 2246 and GMBCG J255.34805+64.23661 (z=0.23 and 0.45), two foreground clusters of the UV-bright QSO HS 1700+6416, based on 240 ks Chandra/ACIS-I observations. We detect enhanced diffuse X-ray emission to the projected distances beyond r_{200} radii of these two clusters. The large-scale X-ray emission is consistent with being azimuthally symmetric at the projected radii of the QSO (0.36 and 0.8 times the radii of the two clusters). Assuming a spherical symmetry, we obtain the de-projected temperature and density profiles of the X-ray-emitting gas. Excluding the cool cores that are detected, we find that the mean temperature of the hot gas is about 4.0 keV for Abell 2246 and 5.5 keV for GMBCG J255.34805+64.23661, although there are indications for temperature drop at large radii. From these results, we can estimate the density and pressure distributions of the hot gas along the QSO sightline. We further infer the radial entropy profile of Abell 2246 and compare it with the one expected from purely gravitational hierarchical structure formation. This comparison shows that the ICM in the outer region of the clusters is likely in a clumpy and multi-phased state. These results, together with the upcoming HST/COS observations of the QSO sightline, will enable a comprehensive investigation of the multi-phase medium associated with the clusters.
Estudos anat?micos e histológicos s?bre a subfamília Triatominae (Heteroptera, Reduviidae): VIII parte: observa??es s?bre a superfície dos ovos das espécies mais importantes
Barth, Rudolf;Muth, Hans;
Memórias do Instituto Oswaldo Cruz , 1958, DOI: 10.1590/S0074-02761958000100010
Abstract: nesta comunica??o analisa-se a forma??o do cório e a amostra da sua superfícies do ovo maduro. as amostras superficiais do cório, apresentadas em esquemas, s?o características para cada espécie examinada, de maneira que estas estruturas servem para a classifica??o das espécies.
Kde je priestor? (Where is a Space?)
Andrej Démuth
Ostium , 2008,
Abstract: The paper is an excerpt of prepared book concerning introduction to systematic epistemology. Author analyses some historical views on space (myth, Plato, Aristotle, Descartes, Kant etc.), and shows some epistemic position through chosen space conceptions. Finally, he focuses attention on a question, where is a space (in ourselves or outside) and affirms conclusion about the only one reality without opposition between outside and inside.
Eine arabisch- thiopische Wort- und Satzliste aus Jerusalem vom 15. Jahrhundert
Franz-Christoph Muth
Afriques : Débats, Méthodes et Terrains d'Histoire , 2010, DOI: 10.4000/afriques.535
Abstract: Dans la première moitié du xve siècle, un lexicographe amateur inconnu rédigea à Jérusalem un guide du voyageur . Il collecte ainsi des listes de vocabulaires utiles et de phrases courantes en arabe parlé de Jérusalem et en éthiopien primitif , translitérées en caractères latins de fa on intuitive, dont il donne les traductions en italien et en latin. Ceci préfigure un genre qui fleurira à la fin du Moyen- ge, à destination des pélerins se rendant en Terre Sainte. L'auteur de l'article présente ces documents dans leur version originale puis en les ordonnant selon les catégories suivantes : éléments et phénomènes naturels ; plantes, fruits et légumés, nourriture ; animaux ; vêtements ; armes, outils, architecture et couleurs ; phrases utiles. Puis il s'interroge sur les méthodes utilisées par le compilateur : l'arabe fut certainement la langue source comme en témoignent de nombreux mots arabes donnés en place de termes éthiopiens. In the first half of the fifteenth century in Jerusalem, an unknown amateur lexicographer wrote a "Travel Guide". He collects lists of useful vocabulary and common phrases in spoken Arabic and "primitive Ethiopian" with an intuitive transliteration in Latin characters, and he translates them in Italian and Latin. In the late Middle Ages, this genre will flourish for the pilgrims visiting the Holy Land. The article presents these documents in their original version and then ordering as such: elements and natural phenomena; plants, fruits and vegetables, food; animals; clothing; weapons, tools, architecture and colours; useful sentences. Then the author studied the methods used by the compiler: Arabic was certainly the source language as evidenced by many Arabic words given as would-be Ethiopian terms.
Efficient Business Service Consumption by Customization with Variability Modelling
Michael Stollberg,Marcel Muth
Journal of Systems Integration , 2010,
Abstract: The establishment of service orientation in industry determines the need for efficient engineering technologies that properly support the whole life cycle of service provision and consumption. A central challenge is adequate support for the efficient employment of komplex services in their individual application context. This becomes particularly important for large-scale enterprise technologies where generic services are designed for reuse in several business scenarios. In this article we complement our work regarding Service Variability Modelling presented in a previous publication. There we presented an approach for the customization of services for individual application contexts by creating simplified variants, based on model-driven variability management. That work presents our revised service variability metamodel, new features of the variability tools and an applicability study, which reveals that substantial improvements on the efficiency of standard business service consumption under both usability and economic aspects can be achieved.
Dynamics of pair correlations in the attractive Lieb-Liniger gas
Dominik Muth,Michael Fleischhauer
Physics , 2010, DOI: 10.1103/PhysRevLett.105.150403
Abstract: We investigate the dynamics of a 1D Bose gas after a quench from the Tonks-Girardeau regime to the regime of strong attractive interactions applying analytical techniques and exact numerical simulations. After the quench the system is found to be predominantly in an excited gas-like state, the so-called super-Tonks gas, however with a small coherent admixture of two-particle bound states. Despite its small amplitude, the latter component leads to a rather pronounced oscillation of the local density-density correlation with a frequency corresponding to the binding energy of the pair, making two-particle bound states observable in an experiment. Contributions from bound states with larger particle numbers are found to be negligible.
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