3,146 research outputs found

    Consumer Propensity to Adopt Illicit Goods: Theory, Methods, and Results

    Get PDF
    The purpose of this study is to examine consumer propensity to adopt illicit goods. The adoption of illicit goods is a worldwide problem that undermines legitimate markets, funds criminal organizations, and harms the most vulnerable in society. International organizations, such as World Economic Forum, have called for the study of the demand of illicit products. Research is crucial to understanding the demand for these products and can contribute to public policy addressing this issue. This research uses two theoretical frameworks: The Theory of Planned Behavior and the Theory of Marketing Ethics. Using the Theory of Planned Behavior, research results suggest that subjective norms influence consumers’ propensity to adopt illicit goods. Using the Theory of Marketing Ethics, research on consumers’ ethical orientation found that both teleological and deontological orientations influence consumers’ ethical judgement and intention. Theoretical and methodological conclusions are derived, and managerial and policy implications are offered

    A Note on Twistor Gravity Amplitudes

    Get PDF
    In a recent paper, Witten proposed a surprising connection between perturbative gauge theory and a certain topological model in twistor space. In particular, he showed that gluon amplitudes are localized on holomorphic curves. In this note we present some preliminary considerations on the possibility of having a similar localization for gravity amplitudes.Comment: 14 pages, 6 figures. v2: minor changes, added referenc

    Development of a screening tool enabling identification of infants and toddlers at risk for family abuse and neglect : A feasibility study from three South European countries

    Get PDF
    Background: Child abuse is a health and social problem, and few screening instruments are available for the detection of risk in primary health care. The aim was to develop a screening instrument to be used by professionals in the public health care sector, thus enabling the detection of infants and toddlers at risk of emotional and physical abuse and neglect, and to provide evidence for the feasibility of the instrument in Cyprus, Greece and Spain. Method: A total of 50 health professionals from paediatric public health-care centres in the three countries were involved in a three-step process for guiding the development of the screening tool and its application. Results: A nine-item screening tool, consisting of items assessing relational emotional abuse, physical abuse and other risk factors, was developed. The screening tool was applied on a total of 219 families with 0 to 3-year-old children attending public health centres in the three countries. Clinicians reported that they agreed on the inclusion of the questions (86.4-100%) and that they found the questions to be useful for the clinical evaluation of the family (63.2-100%). Conclusion: The screening tool shows considerable face validity and was reported feasible by an international set of clinician

    Overview of experimental results in PbPb collisions at sqrt{s_NN} = 2.76 TeV by the CMS Collaboration

    Get PDF
    The CMS experiment at the LHC is a general-purpose apparatus with a set of large acceptance and high granularity detectors for hadrons, electrons, photons and muons, providing unique capabilities for both proton-proton and ion-ion collisions. The data collected during the November 2010 PbPb run at sqrt{s_NN} = 2.76 TeV was analyzed and multiple measurements of the properties of the hot and dense matter were obtained. Global event properties, detailed study of jet production and jet properties, isolated photons, quarkonia and weak bosons were measured and compared to pp data and Monte Carlo simulations.Comment: 8 pages, 10 figures, proceedings for Quark Matter 2011, Annecy, France, May 23-28, 201

    An extreme proto-cluster of luminous dusty starbursts in the early Universe

    Get PDF
    We report the identification of an extreme proto-cluster of galaxies in the early Universe whose core (nicknamed Distant Red Core, DRC) is formed by at least ten dusty star-forming galaxies (DSFGs), confirmed to lie at zspec=4.002z_{\rm spec} = 4.002 via detection of [CI](1-0), 12^{12}CO(6-5), 12^{12}CO(4-3), 12^{12}CO(2-1) and H2O(211202){\rm H_2O} (2_{11} - 2_{02}) emission lines, detected using ALMA and ATCA. The spectroscopically-confirmed components of the proto-cluster are distributed over a 260kpc×310kpc{\rm 260\, kpc \times 310\, kpc} region and have a collective obscured star-formation rate (SFR) of 6500Myr1\sim 6500 \, M_\odot \, {\rm yr}^{-1}, considerably higher than has been seen before in any proto-cluster of galaxies or over-densities of DSFGs at z4z \gtrsim 4. Most of the star formation is taking place in luminous DSFGs since no Lyα\alpha emitters are detected in the proto-cluster core, apart from a Lyα\alpha blob located next to one of the DRC dusty components and extending over 60kpc60\,{\rm kpc}. The total obscured SFR of the proto-cluster could rise to SFR14,400Myr1{\rm SFR} \sim 14,400 \, M_\odot \, {\rm yr}^{-1} if all the members of an over-density of bright DSFGs discovered around DRC in a wide-field LABOCA 870-μ\mum image are part of the same structure. The total halo mass of DRC could be as high as 4.4×1013M\sim 4.4 \times 10^{13}\,M_\odot and could be the progenitor of a Coma-like cluster at z=0z = 0. The relatively short gas-depletion times of the DRC components suggest either the presence of a mechanism able to trigger extreme star formation simultaneously in galaxies spread over a few hundred kpc or the presence of gas flows from the cosmic web able to sustain star formation over several hundred million years.Comment: Submitted to ApJ. Minor updates added, including a change of the source name. Comments welcom

    Twistor geometry of a pair of second order ODEs

    Full text link
    We discuss the twistor correspondence between path geometries in three dimensions with vanishing Wilczynski invariants and anti-self-dual conformal structures of signature (2,2)(2, 2). We show how to reconstruct a system of ODEs with vanishing invariants for a given conformal structure, highlighting the Ricci-flat case in particular. Using this framework, we give a new derivation of the Wilczynski invariants for a system of ODEs whose solution space is endowed with a conformal structure. We explain how to reconstruct the conformal structure directly from the integral curves, and present new examples of systems of ODEs with point symmetry algebra of dimension four and greater which give rise to anti--self--dual structures with conformal symmetry algebra of the same dimension. Some of these examples are (2,2)(2, 2) analogues of plane wave space--times in General Relativity. Finally we discuss a variational principle for twistor curves arising from the Finsler structures with scalar flag curvature.Comment: Final version to appear in the Communications in Mathematical Physics. The procedure of recovering a system of torsion-fee ODEs from the heavenly equation has been clarified. The proof of Prop 7.1 has been expanded. Dedicated to Mike Eastwood on the occasion of his 60th birthda
    corecore