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  • Publication . Preprint . Research . Other literature type . Article . 2019
    Open Access English
    Authors: 
    LHCb collaboration; Aaij, R.; Beteta, C. Abellán; Adeva, B.; Adinolfi, M.; Aidala, C. A.; Ajaltouni, Z.; Akar, S.; Albicocco, P.; Albrecht, J.; +190 more
    Publisher: RWTH Aachen University
    Countries: Germany, France

    An angular analysis of $B^0\to J/\psi K^+\pi^-$ decays is performed, using proton-proton collision data corresponding to an integrated luminosity of 3~${\rm fb}^{-1}$ collected with the LHCb detector. The $m(K^+\pi^-)$ spectrum is divided into fine bins. In each $m(K^+\pi^-)$ bin, the hypothesis that the three-dimensional angular distribution can be described by structures induced only by $K^\ast$ resonances is examined, making minimal assumptions about the $K^+\pi^-$ system. The data reject the $K^\ast$-only hypothesis with a large significance, implying the observation of exotic contributions in a model-independent fashion. Inspection of the $m(J/\psi\pi^-)$ versus $m(K^+\pi^-)$ plane suggests structures near $m(J/\psi\pi^-)=4200$~MeV and 4600~MeV. Comment: All figures and tables, along with any supplementary material and additional information, are available at http://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2018-043.html

  • Open Access English
    Authors: 
    Böhm, Michael J.; Gregory, Terry; Qendrai, Pamela; Siegel, Christian;
    Publisher: Bonn: Institute of Labor Economics (IZA)
    Country: Germany

    Like many other countries, Germany has experienced rapid population and workforce ageing, yet with substantial variation across regions. In this paper we first use this spatial variation between 1975 and 2014 to estimate quasi- causal supply effects of ageing on regional labour market outcomes, drawing on the identification strategy of Böhm and Siegel (2020). We find in our panel of German labour market regions that workforce mean age has considerable negative effects on the wage returns to age. We also obtain suggestive evidence that relative employment rates of older workers decline when mean age rises. A decomposition of the heterogeneous regional trends using our estimates shows that ageing of rural regions is mainly driven by supply (reflecting local population dynamics) whereas urban ageing is driven by demand (reflecting responses to economic conditions). We discuss the differential implications of these drivers for regional policy.

  • Open Access English
    Authors: 
    Lauser, Andrea;
    Publisher: DORISEA
    Country: Germany

    In the DORISEA research project Spirits in and of Modernity (Peter J. Bräunlein & Andrea Lauser),communication with ghosts is a central theme. Typically, academics focus on communication with spirits in trance, possession cults, and through spirit-mediums. In a similar vein, few if any ghost movie fans would connect their passion for cinema with religion as such. Rather, ghost movies are more typically associated with popular culture and entertainment than with religion or ritual as such. And yet, ghost movies in Southeast Asia often focus on eminently religious themes. For one, communication with spirits plays a central role in the films. This applies both to the film characters who encounter ghosts, and to the audience which visit dark cinemas and voluntarily expose themselves to an encounter with ghosts. Secondly, these ghost movies often deal directly with culturally rooted beliefs in the afterlife, concepts of good and evil, and the idea of karma. Indeed, the popularity of many ghost movies can only be understood through the way they draw on and reaffirm established, religiously structured, worldviews. As researchers then, we are interested in precisely this interface between popular culture and what is commonly referred to as religion. This approach is especially enlightening as in the cinema of ghosts, religion, entertainment and modernity merge in surprising and remarkable ways. The audience reception of ghost movies is particularly interesting, with audience research posing particular methodological challenges. Kasia Ancuta and Solarsin Ngoenwichit in Thailand, and Mattie Do in Laos are all involved in film production, especially of ghost films. In this interview the producers, directors and scriptwriters each offer unique insights about ghost movie audiences’ expectations and cultural backgrounds. Andrea Lauser in conversation with the filmmakers Katarzyna Ancuta and Solarsin Ngoenwichit from Thailand and Mattie Do From Laos unReviewed

  • Open Access English
    Authors: 
    Merino-Peña, Y.; Pittore, M.; Gomez- Zapata, J.;
    Publisher: GFZ Data Services
    Country: Germany

    The dataset contains a set of structural and non-structural attributes collected using the GFZ RRVS (Remote Rapid Visual Screening) methodology. It is composed by 604 randomly distributed buildings in the urban area of Valparaiso and Viña del Mar (Chile). The survey has been carried out between November and December 2018 using a Remote Rapid Visual Screening system developed by GFZ and employing omnidirectional images from Google StreetView (vintage: December 2018) and footprints from OpenStreetMap (OSM). The buildings were inspected by local structural engineers from the Chilean Research Centre for Integrated Disaster Risk Management (CIGIDEN) while collecting their attribute values in terms of the GEM v.2.0 taxonomy

  • Publication . Article . Preprint . Other literature type . Research . Report . 2018
    Open Access English
    Authors: 
    Ece Aşılar; Marko Dragicevic; A. Escalante Del Valle; Jochen Schieck; Daniel Spitzbart; Claudia-Elisabeth Wulz; E. A. De Wolf; H. Van Haevermaet; N. Van Remortel; Freya Blekman; +429 more
    Publisher: Springer Nature
    Countries: Belgium, United States, United States, Germany, Belgium, Italy, Turkey, India, Spain, Italy ...
    Project: EC | AMVA4NewPhysics (675440), EC | AMVA4NewPhysics (675440)

    A search for charged Higgs boson decaying to a charm and a bottom quark ( $ {\mathrm{H}}^{+}\to \mathrm{c}\overline{\mathrm{b}} $ ) is performed using 19.7 fb$^{−1}$ of pp collision data at $ \sqrt{s}=8 $ TeV. The production mechanism investigated in this search is $ \mathrm{t}\overline{\mathrm{t}} $ pair production in which one top quark decays to a charged Higgs boson and a bottom quark and the other decays to a charged lepton, a neutrino, and a bottom quark. Charged Higgs boson decays to $ \mathrm{c}\overline{\mathrm{b}} $ are searched for, resulting in a final state containing at least four jets, a charged lepton (muon or electron), and missing transverse momentum. A kinematic fit is performed to identify the pair of jets least likely to be the bottom quarks originating from direct top quark decays and the invariant mass of this pair is used as the final observable in the search. No evidence for the presence of a charged Higgs boson is observed and upper limits at 95% confidence level of 0.8–0.5% are set on the branching fraction ℬ(t → H$^{+}$b), assuming ℬ(H$^{+}$ → $ \mathrm{c}\overline{\mathrm{b}} $ ) = 1.0 and ℬ(t → H$^{+}$b) + ℬ(t → Wb) = 1.0, for the charged Higgs boson mass range 90–150 GeV. Journal of high energy physics 1811(11), 115 (2018). doi:10.1007/JHEP11(2018)115 Published by Springer Nature, Cham

  • Open Access English
    Authors: 
    Pyka, Andreas; Fagiolo, Giorgio;
    Country: Germany

    Modellers have had to wrestle with an unavoidable trade-off between the demand of a general theoretical approach and the descriptive accuracy required to model a particular phenomenon. A new class of simulation models has shown to be well adapted to this challenge, basically by shifting outwards this trade- off: So-called agent-based models (ABMs henceforth) are increasingly used for the modelling of socio-economic developments. Our paper deals with the new requirements for modelling entailed by the necessity to focus on qualitative developments, pattern formation, etc. which is generally highlighted within Neo-Schumpeterian Economics and the possibilities given by ABMs.

  • Publication . Research . 2017
    Open Access English
    Authors: 
    Moreira, Sonia Virgínia; Hanitzsch, Thomas;
    Country: Germany
  • Publication . Preprint . Article . Research . Other literature type . 2018
    Open Access English
    Authors: 
    Arne Raasakka; Salla Ruskamo; Julia Kowal; Huijong Han; Anne Baumann; Matti Myllykoski; A. Fasano; Rocco Rossano; Paolo Riccio; Jochen Bürck; +3 more
    Publisher: Deutsches Elektronen-Synchrotron, DESY, Hamburg
    Countries: Switzerland, Norway, Finland, Germany, Germany, Switzerland

    Compact myelin forms the basis of nerve insulation essential for higher vertebrates. Dozens of myelin membrane bilayers undergo tight stacking, and in the peripheral nervous system, this is partially enabled by myelin protein zero (P0). Consisting of an immunoglobulin (Ig)-like extracellular domain, a single transmembrane helix, and a cytoplasmic extension (P0ct), P0 harbours an important task in ensuring the integrity of compact myelin in the extracellular compartment, referred to as the intraperiod line. Several disease mutations resulting in peripheral neuropathies have been identified for P0, reflecting its physiological importance, but the arrangement of P0 within the myelin ultrastructure remains obscure. We performed a biophysical characterization of recombinant P0ct. P0ct contributes to the binding affinity between apposed cytoplasmic myelin membrane leaflets, which not only results in changes of the bilayer properties, but also potentially involves the arrangement of the Ig-like domains in a manner that stabilizes the intraperiod line. Transmission electron cryomicroscopy of native full-length P0 showed that P0 stacks lipid membranes by forming antiparallel dimers between the extracellular Ig-like domains. The zipper-like arrangement of the P0 extracellular domains between two membranes explains the double structure of the myelin intraperiod line. Our results contribute to the understanding of PNS myelin, the role of P0 therein, and the underlying molecular foundation of compact myelin stability in health and disease. Scientific Reports, 9 ISSN:2045-2322

  • Open Access English
    Authors: 
    Curatola, Giuliano; Donadelli, Michael; Grüning, Patrick; Meinerding, Christoph;
    Publisher: Frankfurt a. M.: Goethe University Frankfurt, SAFE - Sustainable Architecture for Finance in Europe
    Country: Germany

    We introduce long-run investment productivity risk in a two-sector production economy to explain the joint behavior of macroeconomic quantities and asset prices. Long-run productivity risk in both sectors, for which we provide economic and empirical justification, acts as a substitute for shocks to the marginal efficiency of investments in explaining the equity premium and the stock return volatility differential between the consumption and the investment sector. Moreover, adding moderate wage rigidities allows the model to reproduce the empirically observed positive co-movement between consumption and investment growth.

  • Open Access English
    Authors: 
    Sirunyan, A. M.; Tumasyan, Armen; Escalante Del Valle, Alberto; Bruno, Giacomo; Ramírez García, Mateo; Sánchez Hernández, Alberto; Carrillo Moreno, Salvador; Oropeza Barrera, Cristina; Vazquez Valencia, Fabiola; Eysermans, Jan; +225 more
    Publisher: HAL CCSD
    Countries: France, Germany, Switzerland
    Project: EC | AMVA4NewPhysics (675440)

    A search for resonance-like structures in the $\mathrm{B}^{0}_{\mathrm{s}}\pi^{\pm}$ invariant mass spectrum is performed using proton-proton collision data collected by the CMS experiment at the LHC at $\sqrt{s} = $ 8 TeV, corresponding to an integrated luminosity of 19.7 fb$^{-1}$. The $\mathrm{B}^{0}_{\mathrm{s}}$ mesons are reconstructed in the decay chain $\mathrm{B}^{0}_{\mathrm{s}} \rightarrow \mathrm{J}/\psi\,\phi$, with $\mathrm{J}/\psi \rightarrow \mu^+\mu^-$ and $\phi\rightarrow\mathrm{K^{+}}\mathrm{K^{-}}$. The $\mathrm{B}^{0}_{\mathrm{s}}\pi^{\pm}$ invariant mass distribution shows no statistically significant peaks for different selection requirements on the reconstructed $\mathrm{B}^{0}_{\mathrm{s}}$ and $\pi^{\pm}$ candidates. Upper limits are set on the relative production rates of the X(5568) and $\mathrm{B}^{0}_{\mathrm{s}}$ states times the branching fraction of the decay $\mathrm{X}(5568)^{\pm} \rightarrow \mathrm{B}^{0}_{\mathrm{s}} \pi^{\pm} $. In addition, upper limits are obtained as a function of the mass and the natural width of possible exotic states decaying into $\mathrm{B}^{0}_{\mathrm{s}}\pi^{\pm}$. Physical review letters 120(20), 202005 (2018). doi:10.1103/PhysRevLett.120.202005 Published by APS, College Park, Md.

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