Leptonic decay constants for D-mesons from 3-flavour CLS ensembles

We report on the status of an ongoing effort by the RQCD and ALPHA Collaborations, aimed at determining leptonic decay constants of charmed mesons. Our analysis is based on large-volume ensembles generated within the CLS effort, employing N_f=2+1 non-perturbatively O(a) improved Wilson quarks, tree-level Symanzik-improved gauge action and open boundary conditions. The ensembles cover lattice spacings from a ~ 0.09 fm to a ~ 0.05 fm, with pion masses varied from 420 to 200 MeV. To extrapolate to the physical masses, we follow both the 2m_l+m_s=const. and the m_s=const. lines in parameter space.Comment: 8 pages including figures and tables, latex2e; Proceedings of the 35th International Symposium on Lattice Field Theory (Lattice 2017), 18-24 June 2017, Granada, Spai

Efficient Implementation of Estelle Specifications

Efficient implementation of communication software is of critical importance for high-speed networks. We analyze performance bottlenecks in existing implementations and propose two techniques for improvements: The first exploits parallelism not only in the actions of the FSMs, but also in the runtime system of the protocol stack. The second integrates adjacent layers leading to considerable savings in inter-layer interface handling and in the number of transitions occurring in the FSMs. Both techniques are discussed in the context of OSI upper layers, and are based on protocol specification in Estelle

Efficient Configuration of Protocol Software for Multiprocessors

Efficient implementation of communication software is of crucial importance for high-speed networks. One way to improve the runtime performance of protocol implementations in the network nodes is the use of parallelism. Formal description techniques like Estelle improve the specification process in many respects and allow for semiautomatic code generation. Therefore, they are now widely accepted. We present a code generator for Estelle that compiles and automatically configures protocol software for a multiprocessor. Software modules are distributed over the available processors and executed concurrently. We report performance results on a KSR1 with 28 available processors under the OSF/1 operating system

Using network analysis for the prediction of treatment dropout in patients with mood and anxiety disorders: a methodological proof-of-concept study

There are large health, societal, and economic costs associated with attrition from psychological services. The recently emerged, innovative statistical tool of complex network analysis was used in the present proof-of-concept study to improve the prediction of attrition. Fifty-eight patients undergoing psychological treatment for mood or anxiety disorders were assessed using Ecological Momentary Assessments four times a day for two weeks before treatment (3,248 measurements). Multilevel vector autoregressive models were employed to compute dynamic symptom networks. Intake variables and network parameters (centrality measures) were used as predictors for dropout using machine-learning algorithms. Networks for patients differed significantly between completers and dropouts. Among intake variables, initial impairment and sex predicted dropout explaining 6% of the variance. The network analysis identified four additional predictors: Expected force of being excited, outstrength of experiencing social support, betweenness of feeling nervous, and instrength of being active. The final model with the two intake and four network variables explained 32% of variance in dropout and identified 47 out of 58 patients correctly. The findings indicate that patients’ dynamic network structures may improve the prediction of dropout. When implemented in routine care, such prediction models could identify patients at risk for attrition and inform personalized treatment recommendations.This work was supported by the German Research Foundation National Institute (DFG, Grant nos. LU 660/8-1 and LU 660/10-1 to W. Lutz). The funder of the study had no role in study design, data collection, data analysis, data interpretation, or writing of the manuscript. The corresponding author had access to all data in the study and had final responsibility for the decision to submit for publication. Dr. Hofmann receives financial support from the Alexander von Humboldt Foundation (as part of the Humboldt Prize), NIH/NCCIH (R01AT007257), NIH/NIMH (R01MH099021, U01MH108168), and the James S. McDonnell Foundation 21st Century Science Initiative in Understanding Human Cognition - Special Initiative. (LU 660/8-1 - German Research Foundation National Institute (DFG); LU 660/10-1 - German Research Foundation National Institute (DFG); Alexander von Humboldt Foundation; R01AT007257 - NIH/NCCIH; R01MH099021 - NIH/NIMH; U01MH108168 - NIH/NIMH; James S. McDonnell Foundation 21st Century Science Initiative in Understanding Human Cognition - Special Initiative)Accepted manuscrip

Locally compact abelian p-groups revisited

Even though the structure of locally compact abelian groups is generally considered to be rather thoroughly known through a wealth of publications, one keeps encountering corners that are not elucidated in up-to-date literature. In a study of a particular class of metabelian locally compact groups (see [HHR17]) we encountered some issues about noncompact locally compact abelian groups which do not appear to be discussed in the literature even though some of them were anticipated in Braconnier's article on his local product [Bra48]. Here we treat some of them, notably some aspects of totally disconnected torsion-free locally compact abelian groups which one might consider unexpected if not pathological. However, firstly we deal with some points concerning noncompact locally compact abelian torsion groups. For compact abelian groups we often refer to the monograph [HM13]. It will be convenient to use additive notation for abelian groups

Raumplaner zwischen NS-Staat und Bundesrepublik: zur Kontinuität und Diskontinuität von Raumplanung 1933 bis 1960

Als der NS-Staat im Frühjahr 1945 unter dem Angriff der alliierten Armeen zusammenbrach, hinterließ er u. a. ein erhebliches Potenzial von qualifizierten Fachleuten für Raumplanung. Hier gibt es über das Jahr 1945 hinaus im Gebiet der späteren Bundesrepublik ein hohes Maß an Kontinuität. Dieses stellt sich als Fortführung wissenschaftlicher Organisationen und damit gegebener personeller Zusammenhänge wie auch als Weiterexistenz der staatlichen Planungsbehörden auf der Landesebene dar, während die zentralen Planungsapparate auf Reichsebene, wie vor allem die Reichsstelle für Raumordnung und der Reichskommissar für die Festigung des deutschen Volkstums, mit dem Ende des NS-Staates aufgelöst wurden. Der Aufstieg in der Bundesrepublik zu einem anerkannten Zweig der Wissenschaften und einem wichtigen Faktor der Selbststeuerung des demokratischen Interventionsstaates beruhte darauf, dass die Raumplaner einerseits der Desorganisation des wirtschaftlichen Lebens und der Notwendigkeit, die sozialen und administrativen Strukturen zu erneuern, mit Fachwissen und vorhandenen Forschungs- und Verwaltungsapparaten entgegentreten konnten. Zum anderen begegneten sie dem Verdacht der Verstrickung in die Verbrechen des NS-Staates mit einer verharmlosenden Selbstinterpretation. Sie insistierten auf den wissenschaftlich theoretischen Charakter ihrer Arbeiten, während vor allem, aber nicht nur, an den Beispielen Konrad Meyer und Gerhard Ziegler deutlich wurde, wie eng ihre Zusammenarbeit mit den politischen Stellen der SS und die Beteiligung an der Umsetzung der aggressiven Volkstumspolitik war.When the Nazi state collapsed under the Allied offensive in the spring of 1945, its legacy included the very significant potential provided by the ranks of professionals qualified in spatial planning. Within the territory which was to become the Federal Republic of Germany, a good deal of continuity can be observed beyond the year 1945. This continuity is manifested in the survival of scientific organisations, and thus also of personal networks, as well as in the continued existence of state planning authorities at the federal-state level; by contrast, the central planning apparatus at the Reich level, in particular the Reich Authority for Spatial Order and the office of the Reich Commissioner for the Consolidation of German National Culture, were dissolved with the collapse of the Nazi state. The rise of spatial planning within the Federal Republic to become a recognised branch of science and a key factor of self-determination within a democratic interventionist state has its roots partly in the fact that spatial planners were able to respond to the disorganisation of economic life and the need for the renewal of social and administrative structures by offering specialist technical expertise and an array of research and administrative structures which were already in place. They were, however, also able to counter any suspicion of involvement in the crimes of the Nazi regime by proffering their own exculpatory interpretations of their actions. They insisted that their work was of a purely academic and theoretical nature, whereas, particularly in the case of Konrad Meyer and Gerhard Ziegler, it has since become clear just how closely they co-operated with the SS and were involved in the implementation of an aggressive national-culture policy