19 research outputs found

    Combination of searches for heavy spin-1 resonances using 139 fb−1 of proton-proton collision data at √s = 13 TeV with the ATLAS detector

    Get PDF
    A combination of searches for new heavy spin-1 resonances decaying into diferent pairings of W, Z, or Higgs bosons, as well as directly into leptons or quarks, is presented. The data sample used corresponds to 139 fb−1 of proton-proton collisions at √s = 13 TeV collected during 2015–2018 with the ATLAS detector at the CERN Large Hadron Collider. Analyses selecting quark pairs (qq, bb, tt¯, and tb) or third-generation leptons (τν and τ τ ) are included in this kind of combination for the frst time. A simplifed model predicting a spin-1 heavy vector-boson triplet is used. Cross-section limits are set at the 95% confdence level and are compared with predictions for the benchmark model. These limits are also expressed in terms of constraints on couplings of the heavy vector-boson triplet to quarks, leptons, and the Higgs boson. The complementarity of the various analyses increases the sensitivity to new physics, and the resulting constraints are stronger than those from any individual analysis considered. The data exclude a heavy vector-boson triplet with mass below 5.8 TeV in a weakly coupled scenario, below 4.4 TeV in a strongly coupled scenario, and up to 1.5 TeV in the case of production via vector-boson fusion

    Selective and sensitive monitoring of caspase-1 activity by a novel bioluminescent activity-based probe

    Get PDF
    The role of caspase-1 in inflammation has been studied intensely over recent years. However, the research of caspase-1 has remained difficult mainly due to the lack of sensitive and selective tools to monitor not only its abundance but also its activity. Here we present a bioluminescent activity-based probe (ABP) for caspase-1, developed by the Reverse Design concept, where chemically optimized protease inhibitors are turned into selective substrate ABPs. The probe exhibits excellent selectivity for caspase-1 and ∼1000-fold increase in sensitivity compared to available fluorogenic peptidic caspase-1 substrates. Moreover, we have been able to monitor and quantify specific caspase-1 activity directly in cell lysates. The activity correlated well with processing of prointerleukin-1β and prointerleukin-18 in phorbol 12-myristate 13-acetate (PMA)-stimulated cells. A detectable caspase-1 activity was present also in nonstimulated cells, consistent with processing of constitutively expressed prointerleukin-18

    A review of effective interventions for reducing aggression and violence

    No full text
    This paper addresses the question of whether individual violence can be reduced in frequency or severity, if so to what extent and by which methods. It opens with a brief overview of the nature of personal violence and discussion of some key definitional and methodological problems. However, its principal focus is on the findings obtained from a series of meta-analytic reviews of structured programmes for adolescents and adults who have shown repeated aggression or been convicted of personal violence, drawing together the results of studies conducted in prison, probation, youth justice and allied services. Additional results are considered from a systematic review of studies of violence prevention among offenders with mental disorders. This incorporates the preliminary findings of a meta-analysis of controlled trials of psychosocial interventions with that population. Overall, it is concluded that there is sufficient evidence currently available to substantiate the claim that personal violence can be reduced by psychosocial interventions, but that much more research is required to delineate the parameters of effectiveness in this context. Proposals are made for future investigations with reference to the theoretical understanding of causal relationships and the design of experimental trials
    corecore