1,423 research outputs found

    La informalidad y su impacto en la calidad de vida en Cartagena de Indias, Colombia

    Get PDF
    La informalidad es un conjunto de prácticas sociales, económicas que se desarrollan al margen de la legalidad y las normas establecidas, y su solución requiere de políticas públicas efectivas que fomenten la formalización economía y el cumplimiento de las leyes y normas establecidas. Esto implica, entre otras cosas, que entidades como la Cámara de Comercio, la Superintendencia de Industria y Comercio, el Sena, la DIAN, y el Ministerio de Salud y Protección Social, así como la alcaldía de Cartagena (2020) a partir de s plan de desarrollo Salvemos juntos a Cartagena tiene aspectos que desarrollan estrategias de capacitación en áreas económico-administrativas, para los micro empresarios, pequeñas empresas, trabajadores informales que generen incentivos fiscales atractivos que los motiven a formalizar sus negocios

    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