517 research outputs found

    A Training Program for Cooperative Extension Agents: Implementation of Integrated Pest Management (IPM) in Virginia Public Schools

    Get PDF
    A School Integrated Pest Management (IPM) training program was provided to Extension agents in Virginia. The training was designed to teach agents how to promote IPM programs for structural pest control in schools. Training focused on promoting the concepts of IPM and reducing indoor pesticide use. Post-training evaluations indicated that agents had received sufficient information to promote IPM in their counties. Twelve of the agent participants hosted School IPM training within their local school district(s). These local programs have resulted in 9 districts adopting IPM and thus improving the environmental quality of for 23,813 school employees and 166,319 students

    Constraints on the χ_(c1) versus χ_(c2) polarizations in proton-proton collisions at √s = 8 TeV

    Get PDF
    The polarizations of promptly produced χ_(c1) and χ_(c2) mesons are studied using data collected by the CMS experiment at the LHC, in proton-proton collisions at √s=8  TeV. The χ_c states are reconstructed via their radiative decays χ_c → J/ψγ, with the photons being measured through conversions to e⁺e⁻, which allows the two states to be well resolved. The polarizations are measured in the helicity frame, through the analysis of the χ_(c2) to χ_(c1) yield ratio as a function of the polar or azimuthal angle of the positive muon emitted in the J/ψ → μ⁺μ⁻ decay, in three bins of J/ψ transverse momentum. While no differences are seen between the two states in terms of azimuthal decay angle distributions, they are observed to have significantly different polar anisotropies. The measurement favors a scenario where at least one of the two states is strongly polarized along the helicity quantization axis, in agreement with nonrelativistic quantum chromodynamics predictions. This is the first measurement of significantly polarized quarkonia produced at high transverse momentum
    corecore