54 research outputs found

    "Hunger ist Mord" - Populistische Tendenzen in der Entwicklungspolitik?

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    Auch das Feld der Entwicklungspolitik ist anfällig für populistische Tendenzen. Nicht nur in den USA, auch in Ländern des Südens gewinnen Politiker Mehrheiten mit populistischen Parolen. Auch hierzulande dienen populistische Argumente dazu, für oder gegen mehr "Entwicklungshilfe" oder für deren Privatisierung zu mobilisieren, aber auch um Popularität durch verbalradikale Skandalisierung globaler Ungleichheit zu erlangen. Der Beitrag spürt diesen Tendenzen nach und stellt diese in den Kontext der sozial exkludierenden Folgen einer marktradikalen Globalisierung

    The Digital Disruption of Strategic Paths: An Experimental Study

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    In this paper, we draw on the literatures on path dependence and disruptive innovation to examine in an experimental setting how path-dependent firms respond to digital disruption. As our results indicate, in the face of digital disruption, path-dependent firms tend to renovate the technological foundation on which their strategic path is based if they have the opportunity to reproduce their established strategic path. Our findings also suggest that path-dependent firms equally tend to renovate their technological foundation or the targeted market segment in the face of digital disruption if they are unable to reproduce their established strategic path. Our findings provide insights into the challenges that digitization imposes on established firms, complement the literature on path dependence with insights into path disruption, contribute an integrated view to the literature on disruptive innovation, and offer some guidance to practitioners

    Search for dark matter produced in association with bottom or top quarks in √s = 13 TeV pp collisions with the ATLAS detector

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    A search for weakly interacting massive particle dark matter produced in association with bottom or top quarks is presented. Final states containing third-generation quarks and miss- ing transverse momentum are considered. The analysis uses 36.1 fb−1 of proton–proton collision data recorded by the ATLAS experiment at √s = 13 TeV in 2015 and 2016. No significant excess of events above the estimated backgrounds is observed. The results are in- terpreted in the framework of simplified models of spin-0 dark-matter mediators. For colour- neutral spin-0 mediators produced in association with top quarks and decaying into a pair of dark-matter particles, mediator masses below 50 GeV are excluded assuming a dark-matter candidate mass of 1 GeV and unitary couplings. For scalar and pseudoscalar mediators produced in association with bottom quarks, the search sets limits on the production cross- section of 300 times the predicted rate for mediators with masses between 10 and 50 GeV and assuming a dark-matter mass of 1 GeV and unitary coupling. Constraints on colour- charged scalar simplified models are also presented. Assuming a dark-matter particle mass of 35 GeV, mediator particles with mass below 1.1 TeV are excluded for couplings yielding a dark-matter relic density consistent with measurements

    Search for additional neutral MSSM Higgs bosons in the τ τ final state in proton-proton collisions at s=13 \sqrt{s}=13 TeV

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    A search is presented for additional neutral Higgs bosons in the τ τ final state in proton-proton collisions at the LHC. The search is performed in the context of the minimal supersymmetric extension of the standard model (MSSM), using the data collected with the CMS detector in 2016 at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb−1. To enhance the sensitivity to neutral MSSM Higgs bosons, the search includes production of the Higgs boson in association with b quarks. No significant deviation above the expected background is observed. Model-independent limits at 95% confidence level (CL) are set on the product of the branching fraction for the decay into τ leptons and the cross section for the production via gluon fusion or in association with b quarks. These limits range from 18 pb at 90 GeV to 3.5 fb at 3.2 TeV for gluon fusion and from 15 pb (at 90 GeV) to 2.5 fb (at 3.2 TeV) for production in association with b quarks, assuming a narrow width resonance. In the m h hod + scenario these limits translate into a 95% CL exclusion of tan β > 6 for neutral Higgs boson masses below 250 GeV, where tan β is the ratio of the vacuum expectation values of the neutral components of the two Higgs doublets. The 95% CL exclusion contour reaches 1.6 TeV for tan β = 60

    Measurement of jet fragmentation in Pb+Pb and pppp collisions at sNN=2.76\sqrt{{s_\mathrm{NN}}} = 2.76 TeV with the ATLAS detector at the LHC

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    Review: Christoph Haferburg: Umbruch oder Persistenz? Sozialräumliche Differenzierungen in Kapstadt (2007) Buchbesprechung: Christoph Haferburg: Umbruch oder Persistenz? Sozialräumliche Differenzierungen in Kapstadt (2007)

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    Review of the monograph: Christoph Haferburg: Umbruch oder Persistenz? Sozialräumliche Differenzierungen in Kapstadt, Universität Hamburg, Institut für Geography 2007 (= Hamburger Beiträge zur Geographischen Forschung, Bd. 6), ISBN 978-3-9806865-7-0, 369 pages. Besprechung der Monographie: Christoph Haferburg: Umbruch oder Persistenz? Sozialräumliche Differenzierungen in Kapstadt, Universität Hamburg, Institut für Geographie 2007 (= Hamburger Beiträge zur Geographischen Forschung, Bd. 6), ISBN 978-3-9806865-7-0, 369 Seiten

    Buchbesprechung: Christoph Haferburg: Umbruch oder Persistenz? Sozialräumliche Differenzierungen in Kapstadt (2007)

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    Review of the monograph: Christoph Haferburg: Umbruch oder Persistenz? Sozialräumliche Differenzierungen in Kapstadt, Universität Hamburg, Institut für Geography 2007 (= Hamburger Beiträge zur Geographischen Forschung, Bd. 6), ISBN 978-3-9806865-7-0, 369 p.Besprechung der Monographie: Christoph Haferburg: Umbruch oder Persistenz? Sozialräumliche Differenzierungen in Kapstadt, Universität Hamburg, Institut für Geographie 2007 (= Hamburger Beiträge zur Geographischen Forschung, Bd. 6), ISBN 978-3-9806865-7-0, 369 S

    Fundamentals of African Agriculture

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    During the past decades farmers in Sub-Saharan Africa had been prevented from making more intensive use of their mostly under-utilised production potentials by unattractive prices and market conditions, which in many countries were reinforced by a less than conducive policy environment. At the same time, there were no sufficient opportunities outside agriculture to allow rural families to give up their subsistence production. Now, as agricultural prices tend to rise with a long-term perspective, while natural conditions tend to deteriorate, African farmers (and policies) are facing both incentives and a pressure for intensification of their production systems. However, most small-scale farmers, having been forced to get involved in diversified, multilocational rural-urban livelihood systems, are not well-prepared to respond flexibly to the new conditions. Based on this assessment, this article concludes by emphasising the necessity to support a new, albeit alternative (i.e. context-specific), ‘Green Revolution’ for Sub-Saharan Africa
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