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Vom 12.-14. September 2013 fand die 10. Arbeitstagung der AG Frühe Neuzeit in München statt. ARNDT BRENDECKE (München) hieß alle Teilnehmer der Tagung in München willkommen. Die Frühneuzeitforschung behandele seit langer Zeit mit bemerkenswert innovativen Ansätzen Latenzen. Diese werden traditioneller Weise mit einem "Plot der Moderne" in Verbindung gebracht, der unterstellt, dass der Wandel zur Moderne im Modus einer Inkubation vorbereitet, ja "ausgebrütet" werde, wie z.B. beim Geist des Kapitalismus, der Sozialdisziplinierung oder der Konfessionalisierung. Praxeologische Ansätze würden auch auf das Latente verweisen, nämlich auf Praktiken, die dem Diskurs und dem zeitgenössischen Nachdenken weitgehend entzogen waren. Damit bestehe die Chance, an innovative, vielschichtige und stark reflexive Traditionen der Frühneuzeitforschung anzuknüpfen, zugleich aber Distanz zu hegelianischen Unterstellungen über das unsichtbare Wesentliche der Geschichte zu gewinnen. ...
Die Gründerinnen des Arbeitskreises für spätmittelalterliche Wirtschaftsgeschichte Julia Bruch (Köln), Ulla Kypta (Frankfurt am Main) und Tanja Skambraks (Mannheim) luden vom 15. bis zum 16. November zu einer ersten Konferenz mit dem Titel "Neue Methoden der spätmittelalterlichen Wirtschaftsgeschichte" ein. In ihrer Begrüßungs- und Einführungsrede verwies ULLA KYPTA (Frankfurt am Main) auf die Methodenvielfalt in den Wirtschaftswissenschaften und die Schwierigkeiten bei der adäquaten Auswahl und dem sinnvollen Gebrauch derselben innerhalb der Wirtschaftsgeschichte. So bedinge die Anwendung von wirtschaftswissenschaftlichen Modellen immer wieder die Konfrontation mit den empirischen Quellenbefunden. Neben den wirtschaftswissenschaftlichen seien die sozial- und kulturwissenschaftlichen Ansätze ebenfalls in das Methodenspektrum der Wirtschaftshistoriker aufzunehmen. ...
Impairment in past tense production as well as interaction between tense and aspect have been found in both fluent and non-fluent aphasia (e.g. Dragoy & Bastiaanse, 2013). Inflection has been found to be relatively preserved in semantic dementia (SD) (Thompson et al., 2012). The aims of the present study are a) to compare the morphosyntactic abilities of patients with aphasia and SD in tense and aspect marking and b) to explore the interaction of lexical (+/- telic) and grammatical (perfective/imperfective) aspect in aphasia and SD. A sentence completion task was administered to 30 native speakers of Greek: 10 patients with aphasia (6 anomic, 2 Wernicke and 2 agrammatic), 10 age and education-matched controls, 5 patients with SD and 5 controls. The material consisted of unergative, unaccusative and transitive verbs (12 of each verb class) and the participants had to apply present (imperfective) and past (perfective) tense. Unergative and unaccusative verbs differ in terms of their aspectual properties with the unergative being [-telic], and unaccusative [+telic]. Transitive verbs vary. A principal distinction between the tested conditions was the standard ummarked combination ([+telic] verbs in past perfective and [–telic] verbs in present imperfective) vs. the marked one ([+telic] verbs in present imperfective and [–telic] in past perfective). Both control groups performed at ceiling in all conditions. Aphasic participants were significantly more impaired than the control group in all conditions. SD participants were significantly more impaired than the controls only in the production of present tense (M-W U= 1.5, p= 0.024). There was no difference between past perfective and present imperfective for neither group, but there was an interaction between verb class and tense for the aphasic participants, as performance in unaccusative verbs in past perfective (unmarked condition) was significantly better than in unergatives in past perfective (marked condition) (Z=2.512, p=0.012) but performance in unaccusatives in present imperfective (marked condition) was significantly worse than performance in unergatives in present imperfective (unmarked condition) (Z=2.680, p=0.004). In sum, aphasic participants performed significantly better in the unmarked than in the marked conditions. Such an interaction was not found for the SD group. Aphasic participants performed significantly worse than the SD subjects in past perfective tense (M-W U= 7.5, p=0.029) in total, and the difference was significant only for unaccusative verbs (M-W U= 6.5, p=0.021), although both groups performed very well in this condition. There was no difference in present, neither for each verb class separately nor for the total score. A general past tense deficit cannot be upheld for either group. Rather, SD participants appear relatively impaired in producing present tense. We argue for slight morphosyntactic impairment in SD, although with a different underlying cause than in aphasia. Moreover, our data suggest an effect of aspectual markedness in aphasia but not in SD. We discuss this finding in the light of the different neuropathology of the two populations.
XIII Nuclei in the Cosmos, 7-11 July, 2014 Debrecen, Hungary.
As an alternative production scenario to the so-called g process, the most abundant p nucleus 92Mo may be produced by a chain of proton-capture reactions in supernovae type Ia. The reactions 90Zr(p,g) and 91Nb(p,g) are the most important reactions in this chain. We have measured the first reaction using high-resolution in-beam g-spectroscopy at HORUS, Cologne, Germany, to contribute to the existing experimental data base. So far, we only investigated the high-energy part of the Gamow window and the analysis is still in progress. We plan to study the second reaction in standard kinematics at the FRANZ facility, Frankfurt, Germany. Current developments at FRANZ will be explained in detail.
Die Hessische Schülerakademie 2014 stand ganz im Zeichen ihres 10jährigen Bestehens. Seit Gründung der Oberstufenakademie im Jahre 2004 durch Cynthia Hog-Angeloni und Wolfgang Metzler hat sich die "HSAKA" selbstverständlich verändert; das ist bei einem so ambitionierten Projekt auch gar nicht anders denkbar. Die Hessische Schülerakademie hat sich behauptet, indem sie immer wieder neue Impulse aufgenommen und sich beständig um Verbesserung bemüht hat – und sie ist gewachsen.
We investigate the properties of the QCD matter across the deconfinement phase transition. In the scope of the parton-hadron string dynamics (PHSD) transport approach, we study the strongly interacting matter in equilibrium as well as the out-of equilibrium dynamics of relativistic heavy-ion collisions. We present here in particular the results on the electromagnetic radiation, i.e. photon and dilepton production, in relativistic heavy-ion collisions and the relevant correlator in equilibrium, i.e. the electric conductivity. By comparing our calculations for the heavy-ion collisions to the available data, we determine the relative importance of the various production sources and address the possible origin of the observed strong elliptic flow ν2 of direct photons.
We discuss recent applications of the partonic perturbative QCD based cascade model BAMPS with focus on heavy-ion phenomenology in the hard and soft momentum range. First, the elliptic flow and suppression of charm and bottom quarks are studied at LHC energies. Thereafter, we compare in a detailed study the standard Gunion-Bertsch approximation of the matrix elements for inelastic processes to the exact results in leading order perturbative QCD. Since a disagreement is found, we propose an improved Gunion-Bertsch matrix element, which agrees with the exact result in all phase space regions.
We have measured the radiative neutron-capture cross section and the total neutron-induced cross section of one of the most important isotopes for the s process, the 25Mg. The measurements have been carried out at the neutron time-of-flight facilities n_TOF at CERN (Switzerland) and GELINA installed at the EC-JRC-IRMM (Belgium). The cross sections as a function of neutron energy have been measured up to approximately 300 keV, covering the energy region of interest to the s process. The data analysis is ongoing and preliminary results show the potential relevance for the s process.
We present the results of two-pion production in tagged quasi-free np collisions at a deutron incident beam energy of 1.25 GeV/c measured with the High-Acceptance Di-Electron Spectrometer (HADES) installed at GSI. The specific acceptance of HADES allowed for the first time to obtain high-precision data on π+π− and π−π0 production in np collisions in a region corresponding to large transverse momenta of the secondary particles. The obtained differential cross section data provide strong constraints on the production mechanisms and on the various baryon resonance contributions (∆∆, N(1440), N(1520), ∆(1600)). The invariant mass and angular distributions from the np → npπ+π −and np → ppπ−π0 reactions are compared with different theoretical model predictions.