670 research outputs found

    Plan de responsabilidad social para la empresa hidrosanitarias NMC en la ciudad de Ibagué - Tolima.

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    Anexo A. Enlace al Código de Ética: https://editor.reedsy.com/s/EY98m35 Anexo B. Formato de Recolección de Información - Diseño encuesta aplicada a directivos: https://forms.gle/ExEBvWh7mLXyUjJW8 - Diseño encuesta aplicada a colaboradores: https://forms.gle/1FMTykR1NDjSBczu6En la presente investigación se realiza el Plan estratégico de responsabilidad social empresarial (RSE) para la empresa Hidrosanitarias NMC, contando con la colaboración de los grupos de interés (Stakeholders), realizando un reconocimiento a los diferentes temas que permiten hacer una conceptualización y teorización de lo que representa actuar con responsabilidad social empresarial, los elementos que comprenden la ética empresarial, la planeación estratégica que incluye las acciones que favorezcan al medio ambiente y el desarrollo de sus operaciones, las labores sociales y todo aquello que genera beneficios para los stakeholders y así estar contribuyendo económicamente en el desarrollo de la región. Se realiza un diagnóstico integral a cada una de las áreas, identificando como el problema crítico de la empresa el Incumplimiento de las prácticas y políticas ambientales, para lo cual mediante un análisis con la matriz de marco lógico se busca plantear objetivos estratégicos para superar y/o mitigar los problemas y de esta forma proponer un Plan estratégico de responsabilidad social para la empresa, que contribuye a procesos internos, mejorar su imagen y el reconocimiento de esta empresa en el entorno comercial por sus acciones y buenas prácticas empresariales. Se presenta una propuesta de Plan de acción y seguimiento para la empresa Hidrosanitarias NMC para así dar cumplimiento de las prácticas y políticas ambientales dentro de los temas fundamentales de la ISO 26000.In this research, the strategic plan of corporate social responsibility for the company Hidrosanitarias NMC is carried out, with the collaboration of the stakeholders, making a recognition of the different topics that allow a conceptualization and theorization of what it represents to act with corporate social responsibility, the elements that comprise business ethics, strategic planning that includes actions that favor the environment and the development of its operations, social work and everything that generates benefits for stakeholders and thus be contributing economically in the development of the region. A comprehensive diagnosis is made in each of the areas, identifying as the critical problem of the company the non-compliance of environmental practices and policies, for which by means of an analysis with the logical framework matrix seeks to propose strategic objectives to overcome and/or mitigate the problems and thus propose a strategic plan of social responsibility for the company, which contributes to internal processes, improve its image and the recognition of this company in the business environment for its actions and good business practices. A proposal for an action and follow-up plan for Hidrosanitarias NMC is presented in order to comply with environmental practices and policies within the fundamental topics of ISO 26000

    Chagas disease in Costa Rica: comparative studyin two different stages

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    Para actualizar la situación de la Enfermedad de Chagas en Costa Rica se realizó un estudio serológico y epidemiológico parcial en 4 zonas de riesgo en el país. Un total de 1.561 estudiantes de 6 a 12 años fueron estudiados por anticuerpos contra T.cruzi usando una prueba de ELISA como tamiz previo a una confirmatoria. En la primera prueba se obtuvo una positividad que osciló entre 0,6% y 14,9% mientras que en la prueba confirmatoria esta positividad fue de 0,1%. El estudio del 10% de las casas de los estudiantes seleccionados indicó índices de infestación del 2,9% al 9,3% y los triatominos, encontrados peridomiciliarmente presentaron un 8,1% de infección por T. cruzi. Al comparar estos datos con los conocidos antes de 1980 y basados en un análisis socioeconómico de ambas épocas, se concluye que las mejores condiciones de vida actuales han disminuido la incidencia de Enfermedad de Chagas en Costa RicaTo bring a date the real situation of Chagas disease in Costa Rica, a partial serological and epidemiological study was done in four risk zones in this country. To achieve that, 1561 students 6 to 12 years old were studied for Trypanosoma cruzi antibodies presence by the ELISA technique. Once all the confirmatory tests were performed, 0.1% of seropositivity was detected in the student population. The study of 10% of houses of the corresponding random selected students, showed a 2.9% T. dimidiata infestation index and 9.3% of the insects were infected with T. cruzi. Comparing these data and the social and economic situation of Costa Rica in years 1980 and 2000, it is inferred that the improvement of the general conditions in Costa Rica, has decreased the Chagas disease incidence in this country.Universidad de Costa Rica//UCR/Costa RicaWorld Health Organization/[980413]/TDR/WHO/SuizaUCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias de la Salud::Centro de Investigación en Enfermedades Tropicales (CIET)UCR::Vicerrectoría de Docencia::Salud::Facultad de Microbiologí

    Measurement of the top quark forward-backward production asymmetry and the anomalous chromoelectric and chromomagnetic moments in pp collisions at √s = 13 TeV

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    Abstract The parton-level top quark (t) forward-backward asymmetry and the anomalous chromoelectric (d̂ t) and chromomagnetic (μ̂ t) moments have been measured using LHC pp collisions at a center-of-mass energy of 13 TeV, collected in the CMS detector in a data sample corresponding to an integrated luminosity of 35.9 fb−1. The linearized variable AFB(1) is used to approximate the asymmetry. Candidate t t ¯ events decaying to a muon or electron and jets in final states with low and high Lorentz boosts are selected and reconstructed using a fit of the kinematic distributions of the decay products to those expected for t t ¯ final states. The values found for the parameters are AFB(1)=0.048−0.087+0.095(stat)−0.029+0.020(syst),μ̂t=−0.024−0.009+0.013(stat)−0.011+0.016(syst), and a limit is placed on the magnitude of | d̂ t| < 0.03 at 95% confidence level. [Figure not available: see fulltext.

    Measurement of t(t)over-bar normalised multi-differential cross sections in pp collisions at root s=13 TeV, and simultaneous determination of the strong coupling strength, top quark pole mass, and parton distribution functions

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    An embedding technique to determine ττ backgrounds in proton-proton collision data

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    An embedding technique is presented to estimate standard model tau tau backgrounds from data with minimal simulation input. In the data, the muons are removed from reconstructed mu mu events and replaced with simulated tau leptons with the same kinematic properties. In this way, a set of hybrid events is obtained that does not rely on simulation except for the decay of the tau leptons. The challenges in describing the underlying event or the production of associated jets in the simulation are avoided. The technique described in this paper was developed for CMS. Its validation and the inherent uncertainties are also discussed. The demonstration of the performance of the technique is based on a sample of proton-proton collisions collected by CMS in 2017 at root s = 13 TeV corresponding to an integrated luminosity of 41.5 fb(-1).Peer reviewe

    Measurement of the Splitting Function in &ITpp &ITand Pb-Pb Collisions at root&ITsNN&IT=5.02 TeV

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    Data from heavy ion collisions suggest that the evolution of a parton shower is modified by interactions with the color charges in the dense partonic medium created in these collisions, but it is not known where in the shower evolution the modifications occur. The momentum ratio of the two leading partons, resolved as subjets, provides information about the parton shower evolution. This substructure observable, known as the splitting function, reflects the process of a parton splitting into two other partons and has been measured for jets with transverse momentum between 140 and 500 GeV, in pp and PbPb collisions at a center-of-mass energy of 5.02 TeV per nucleon pair. In central PbPb collisions, the splitting function indicates a more unbalanced momentum ratio, compared to peripheral PbPb and pp collisions.. The measurements are compared to various predictions from event generators and analytical calculations.Peer reviewe

    MUSiC : a model-unspecific search for new physics in proton-proton collisions at root s=13TeV

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    Results of the Model Unspecific Search in CMS (MUSiC), using proton-proton collision data recorded at the LHC at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb(-1), are presented. The MUSiC analysis searches for anomalies that could be signatures of physics beyond the standard model. The analysis is based on the comparison of observed data with the standard model prediction, as determined from simulation, in several hundred final states and multiple kinematic distributions. Events containing at least one electron or muon are classified based on their final state topology, and an automated search algorithm surveys the observed data for deviations from the prediction. The sensitivity of the search is validated using multiple methods. No significant deviations from the predictions have been observed. For a wide range of final state topologies, agreement is found between the data and the standard model simulation. This analysis complements dedicated search analyses by significantly expanding the range of final states covered using a model independent approach with the largest data set to date to probe phase space regions beyond the reach of previous general searches.Peer reviewe

    Search for new particles in events with energetic jets and large missing transverse momentum in proton-proton collisions at root s=13 TeV

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    A search is presented for new particles produced at the LHC in proton-proton collisions at root s = 13 TeV, using events with energetic jets and large missing transverse momentum. The analysis is based on a data sample corresponding to an integrated luminosity of 101 fb(-1), collected in 2017-2018 with the CMS detector. Machine learning techniques are used to define separate categories for events with narrow jets from initial-state radiation and events with large-radius jets consistent with a hadronic decay of a W or Z boson. A statistical combination is made with an earlier search based on a data sample of 36 fb(-1), collected in 2016. No significant excess of events is observed with respect to the standard model background expectation determined from control samples in data. The results are interpreted in terms of limits on the branching fraction of an invisible decay of the Higgs boson, as well as constraints on simplified models of dark matter, on first-generation scalar leptoquarks decaying to quarks and neutrinos, and on models with large extra dimensions. Several of the new limits, specifically for spin-1 dark matter mediators, pseudoscalar mediators, colored mediators, and leptoquarks, are the most restrictive to date.Peer reviewe

    Measurement of prompt open-charm production cross sections in proton-proton collisions at root s=13 TeV

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    The production cross sections for prompt open-charm mesons in proton-proton collisions at a center-of-mass energy of 13TeV are reported. The measurement is performed using a data sample collected by the CMS experiment corresponding to an integrated luminosity of 29 nb(-1). The differential production cross sections of the D*(+/-), D-+/-, and D-0 ((D) over bar (0)) mesons are presented in ranges of transverse momentum and pseudorapidity 4 < p(T) < 100 GeV and vertical bar eta vertical bar < 2.1, respectively. The results are compared to several theoretical calculations and to previous measurements.Peer reviewe

    Combined searches for the production of supersymmetric top quark partners in proton-proton collisions at root s=13 TeV

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    A combination of searches for top squark pair production using proton-proton collision data at a center-of-mass energy of 13 TeV at the CERN LHC, corresponding to an integrated luminosity of 137 fb(-1) collected by the CMS experiment, is presented. Signatures with at least 2 jets and large missing transverse momentum are categorized into events with 0, 1, or 2 leptons. New results for regions of parameter space where the kinematical properties of top squark pair production and top quark pair production are very similar are presented. Depending on themodel, the combined result excludes a top squarkmass up to 1325 GeV for amassless neutralino, and a neutralinomass up to 700 GeV for a top squarkmass of 1150 GeV. Top squarks with masses from 145 to 295 GeV, for neutralino masses from 0 to 100 GeV, with a mass difference between the top squark and the neutralino in a window of 30 GeV around the mass of the top quark, are excluded for the first time with CMS data. The results of theses searches are also interpreted in an alternative signal model of dark matter production via a spin-0 mediator in association with a top quark pair. Upper limits are set on the cross section for mediator particle masses of up to 420 GeV
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