8 research outputs found

    Inclusive Search for a Highly Boosted Higgs Boson Decaying to a Bottom Quark-Antiquark Pair

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    © 2018 CERN. An inclusive search for the standard model Higgs boson (H) produced with large transverse momentum (pT) and decaying to a bottom quark-antiquark pair (bb) is performed using a data set of pp collisions at s=13 TeV collected with the CMS experiment at the LHC. The data sample corresponds to an integrated luminosity of 35.9 fb-1. A highly Lorentz-boosted Higgs boson decaying to bb is reconstructed as a single, large radius jet, and it is identified using jet substructure and dedicated b tagging techniques. The method is validated with Z→bb decays. The Z→bb process is observed for the first time in the single-jet topology with a local significance of 5.1 standard deviations (5.8 expected). For a Higgs boson mass of 125 GeV, an excess of events above the expected background is observed (expected) with a local significance of 1.5 (0.7) standard deviations. The measured cross section times branching fraction for production via gluon fusion of H→bb with reconstructed pT > 450 GeV and in the pseudorapidity range -2.5 < η < 2.5 is 74±48(stat)-10+17(syst) fb, which is consistent within uncertainties with the standard model prediction

    Propuesta de Modelo de Control Interno en la Empresa Construelectricos el Centro S.A.S

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    El modelo de control interno cumple un rol importante dentro de las organizaciones, refiere al control y ejecuciĂłn que se efectĂșan en las diferentes ĂĄreas de las empresas en la cuales no se ejecuta el control interno, sesgando la oportunidad de obtener un dictamen y resultados de los fraudes, riesgos y fallas obteniendo asĂ­ las consecuencias de la no implementaciĂłn de un modelo de control interno en la organizaciĂłn, el objetivo de este trabajo de grado es generar una propuesta de implementaciĂłn de un mĂ©todo de control interno en la empresa Construelectricos El Centro S.A.S. y a partir de la planificaciĂłn, ejecuciĂłn y resultado de la prueba diagnĂłstica, determinamos las necesidades existentes en cada una de las ĂĄreas de la empresa durante el Ășltimo año, para ello se realizĂł un archivo de registro de cada ĂĄrea donde se obtiene el resultado si se ejecutan las labores a cargo de cada departamento y la opciĂłn de mejora que necesita cada ĂĄrea con ello lograr organizar la informaciĂłn sobre el control que se ejecuta en la empresa y las necesidades existentes en la actualidad, asĂ­ establecer el modelo de COSO que se puede implementar en la organizaciĂłn, ya que desde 1992 se han publicado actualizaciones del mismo, por tanto, el desarrollo de la investigaciĂłn arrojĂł el modelo coso III (2013) como el mĂĄs favorable, puesto que se acoge a las necesidades de la empresa en lo que concierne al control de cada ĂĄrea, asĂ­ se planteĂł la propuesta de modelo de control interno que se puede ejecutar en la organizaciĂłn, determinando asĂ­ que su implementaciĂłn se puede concretar si el representante legal de la empresa aprueba su implementaciĂłn, debido a que este proyecto se desarrollĂł desde el conocimiento acadĂ©mico e investigativo, brindando un aporte significativo a la organizaciĂłn y supliendo la necesidad de la implementaciĂłn de un modelo de control interno, asĂ­ mismo, dando cumplimiento al proyecto de grado requerido.The internal control model plays an important role within organizations, refers to the control and execution that are made in different areas of companies in which internal control is not executed, biasing the opportunity to obtain an opinion and results of fraud, risks and failures thus obtaining the consequences of not implementing a model of internal control in the organization, the objective of this degree work is to generate a proposal for implementation of a method of internal control in the company Construelectricos El Centro S.A.S. and from the planning, execution and result of the diagnostic test, we determine the existing needs in each of the areas of the company during the last year, for this a record file of each area was made where the result is obtained if the tasks in charge of each department are executed and the option of improvement that each area needs with this achieve to organize the information on the control that is executed in the company and the existing needs at present, thus establishing the COSO model that can be implemented in the organization, since since 1992 updates of the same have been published, therefore, the development of the research showed the COSO III model (2013) as the most favorable, since it meets the needs of the company regarding the control of each area, thus the proposal of the internal control model that can be implemented in the organization was proposed, This project was developed from academic and research knowledge, providing a significant contribution to the organization and supplying the need for the implementation of an internal control model, thus fulfilling the required degree project.IntroducciĂłn. -- CapĂ­tulo 1. Preliminares. -- 1.1.Planteamiento del problema. -- 1.1.1. DescripciĂłn del problema. -- 1.1.2. formulaciĂłn del problema. -- 1.2. Objetivos. --1.2.1. Objetivo general. -- 1.2.3. Objetivos especĂ­ficos. -- 1.2. JustificaciĂłn. -- Capitulo2. FundamentaciĂłn teĂłrica. -- 2.1. Antecedentes. -- 2.1.1. Antecedentes Municipales. -- 2.1.2. Antecedentes Nacionales. -- 2.1.3. Antecedentes Internacionales. --2.2. Marco conceptual. -- 2.2.1. Control interno. -- 2.2.2. COSO. -- 2.2.3. COSO I. -- 2.2.4. COSO ll. -- 2.2.5. COSO lll. -- 2.2.6. COSO Vl. -- 2.3. Marco teĂłrico. -- 2.3.1Control Interno y auditoria. -- 2.3.1.1. Auditoria. -- 2.3.1.2 Control interno. -- 2.3.1.2.1. Personas competentes. --2.3.1.2.2. Tener lineamientos. -- 2.3.1.2.3. Objetivos claros y medibles. --2.3.1.2.4. EvaluaciĂłn de riesgos. --2.3.1.2.5. Alto grado de difusiĂłn y comunicaciĂłn asertiva. -- 2.3.1.2.6. Monitoreo constante. -- 2.3.1.2.7. Planes de acciĂłn. -- 2.3.1.2.8. Sistemas de informaciĂłn. -- 2.3.2. Principios del control interno. -- 2.3.3. Beneficios de un sistema de control. -- CapĂ­tulo 3. Marco metodolĂłgico. -- 3.1. Tipo de investigaciĂłn. -- 3.2. Enfoque. -- 3.3 Instrumentos. -- 3.3.1. Instrumentos de recolecciĂłn de informaciĂłn. -- 3.4. Fases. -- CapĂ­tulo 4. Desarrollo y Resultados. -- 4.1. DiagnĂłstico del Control Interno de Construelectricos El Centro S.A.S. -- 4.1.1. Recursos tangibles. -- 4.1.2. Recursos intangibles. -- 4.1.3. Capacidad de organizaciĂłn. -- 4. 2 DescripciĂłn de los riesgos existentes en el desarrollo de la actividad econĂłmica de Construelectricos el centro S.A.S., por ĂĄreas. -- 4.2.1 Área directiva. -- 4.2.1.1 Riesgo. -- 4.2.2. Área administrativa. -- 4.2.2.1 Riesgo. -- 4.2.3. Área contable. -- 4.2.3.1. Riesgo. -- 4.2.4Área de compras. -- 4.2.4.1. Riesgo. -- 4.2.5. Área de ventas. -- 4.2.5.1. Riesgo. -- 4.2.6. Recurso Humano. -- 4.2.6.1. Riesgo. -- 4.3. Propuesta de sistema de control interno segĂșn modelo COSO para la empresa “Construelectricos El Centro S.A.S.”. -- 4.3.1. Propuesta. -- 4.3.1.1. Ambiente de control. -- 4.3.1.2. EvaluaciĂłn de riesgos. -- 4.3.1.3. Actividades de control. -- 4.3.1.4. InformaciĂłn y comunicaciĂłn. -- Conclusiones. --Recomendaciones. -- Referencias. [email protected]@[email protected]

    Staphylococcus aureus Infections Resistant to Methicillin Acquired in the Community in Children. An undeniable reality. Report of cases

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    Staphylococcus aureus meticilino resistente es un microorganismo aislado, principalmente a nivel hospitalario; sin embargo, esta condiciĂłn ha cambiado en los Ășltimos años, pues hoy en dĂ­a se reconoce como el agente causal de infecciones adquiridas en la comunidad por niños sin factores predisponentes asociados. Esto puede variar en todo el mundo, pero hay una alerta global por el aumento del problema. En AmĂ©rica Latina, esto ya ha sido reportado enpaĂ­ses como Argentina y Colombia. Evaluar los gĂ©rmenes circulantes a nivel regional y sus caracterĂ­sticas genotĂ­picases importante para el manejo clĂ­nico de algunos pacientes, incluso niños menores de un año, quienes tambiĂ©n son susceptibles a este tipo de infecciĂłn. En este reporte, se presentan dos casos en niños menores de un año, incluyendoun reciĂ©n nacido, lo que hace de este un grupo etario susceptible. La sospecha clĂ­nica de esta bacteria de adquisiciĂłnen la comunidad ayuda a la elecciĂłn adecuada del esquema antibiĂłtico, con mejores resultados clĂ­nicos. Por lo tanto,debe ser una prioridad realizar la vigilancia local de las infecciones por Staphylococcus aureus adquiridas en lacomunidad y determinar los protocolos de manejo, segĂșn los grupos de edad y condiciones asociadas.Staphylococcus aureus meticilino resistente es un microorganismo aislado, principalmente a nivel hospitalario; sin embargo, esta condiciĂłn ha cambiado en los Ășltimos años, pues hoy en dĂ­a se reconoce como el agente causal de infecciones adquiridas en la comunidad por niños sin factores predisponentes asociados. Esto puede variar en todo el mundo, pero hay una alerta global por el aumento del problema. En AmĂ©rica Latina, esto ya ha sido reportado enpaĂ­ses como Argentina y Colombia. Evaluar los gĂ©rmenes circulantes a nivel regional y sus caracterĂ­sticas genotĂ­picases importante para el manejo clĂ­nico de algunos pacientes, incluso niños menores de un año, quienes tambiĂ©n son susceptibles a este tipo de infecciĂłn. En este reporte, se presentan dos casos en niños menores de un año, incluyendoun reciĂ©n nacido, lo que hace de este un grupo etario susceptible. La sospecha clĂ­nica de esta bacteria de adquisiciĂłnen la comunidad ayuda a la elecciĂłn adecuada del esquema antibiĂłtico, con mejores resultados clĂ­nicos. Por lo tanto,debe ser una prioridad realizar la vigilancia local de las infecciones por Staphylococcus aureus adquiridas en lacomunidad y determinar los protocolos de manejo, segĂșn los grupos de edad y condiciones asociadas.Methicillin-resistant Staphylococcus aureus is an isolated germ mainly in hospital settings. However, this condition has changed in the last years. Today, it is recognized as a germ that causes infections acquired in the community by children, without predisposing risk factors. This may vary around the world, but there is a global alert for the increase of the problem. In Latin America, this has already been reported in some countries such as Argentina and Colombia. Evaluating the circulating germs at regional level and their genotypic characteristics is  important for the clinical management of some patients, including children under a year of age as they are also susceptible to this infection. We are presenting two cases in children under one year of age, including a neonate, which are a susceptible age group. The clinical suspicion of this acquisition bacteria in the community helps the adequate choice of the antibiotic scheme, with better clinical outcomes. Therefore, it must be a priority to carry out the local surveillance of Staphylococcus aureus infections acquired in the Community and determine the managementprotocols, according to age groups and associated conditions

    Search for low mass vector resonances decaying into quark-antiquark pairs in proton-proton collisions at s=\sqrt{s} = 13 TeV

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    A search for narrow vector resonances decaying into quark-antiquark pairs is presented. The analysis is based on data collected in proton-proton collisions at s=\sqrt{s} = 13 TeV with the CMS detector at the LHC, corresponding to an integrated luminosity of 35.9 fb−1^{-1}. The hypothetical resonance is produced with sufficiently high transverse momentum that its decay products are merged into a single jet with two-prong substructure. A signal would be identified as a peak over a smoothly falling background in the distribution of the invariant mass of the jet, using novel jet substructure techniques. No evidence for such a resonance is observed within the mass range of 50-300 GeV. Upper limits at 95% confidence level are set on the production cross section, and presented in a mass-coupling parameter space. The limits further constrain simplified models of dark matter production involving a mediator interacting between quarks and dark matter particles through a vector or axial-vector current. In the framework of these models, the results are the most sensitive to date, extending for the first time the search region to masses below 100 GeV

    Inclusive search for a highly boosted Higgs boson decaying to a bottom quark-antiquark pair

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    Search for low mass vector resonances decaying into quark-antiquark pairs in proton-proton collisions at s=13 \sqrt{s}=13 TeV

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    Inclusive search for a highly boosted Higgs boson decaying to a bottom quark-antiquark pair

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    An inclusive search for the standard model Higgs boson (H\mathrm{H}) produced with large transverse momentum (pTp_\mathrm{T}) and decaying to a bottom quark-antiquark pair (bb‟\mathrm{b}\overline{\mathrm{b}}) is performed using a data set of pp collisions at s=\sqrt{s}= 13 TeV collected with the CMS experiment at the LHC. The data sample corresponds to an integrated luminosity of 35.9 fb−1^{-1}. A highly Lorentz-boosted Higgs boson decaying to bb‟\mathrm{b}\overline{\mathrm{b}} is reconstructed as a single, large radius jet and is identified using jet substructure and dedicated b\mathrm{b} tagging techniques. The method is validated with Z→bb‟\mathrm{Z}\to\mathrm{b}\overline{\mathrm{b}} decays. The Z→bb‟\mathrm{Z}\to\mathrm{b}\overline{\mathrm{b}} process is observed for the first time in the single-jet topology with a local significance of 5.1 standard deviations (5.8 expected). For a Higgs boson mass of 125 GeV, an excess of events above the expected background is observed (expected) with a local significance of 1.5 (0.7) standard deviations. The measured cross section times branching fraction for production via gluon fusion of H→bb‟\mathrm{H} \rightarrow \mathrm{b}\overline{\mathrm{b}} with pT>p_\mathrm{T}>450 GeV and in the pseudorapidity range −-2.5 <η<< \eta < 2.5 is 74±\pm48 (stat) −10+17_{-10}^{+17} (syst) fb, which is consistent within uncertainties with the standard model prediction

    Inclusive search for a highly boosted Higgs boson decaying to a bottom quark-antiquark pair

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    An inclusive search for the standard model Higgs boson (H) produced with large transverse momentum (pT_T) and decaying to a bottom quark-antiquark pair (bbˉ)(b\bar{b}) is performed using a data set of pp collisions at s\sqrt{s} = 13 TeV collected with the CMS experiment at the LHC. The data sample corresponds to an integrated luminosity of 35.9 fb−1^{-1}. A highly Lorentz-boosted Higgs boson decaying to bbˉb\bar{b} is reconstructed as a single, large radius jet, and it is identified using jet substructure and dedicated b tagging techniques. The method is validated with Z → bbˉb\bar{b} decays. The Z → bbˉb\bar{b} process is observed for the first time in the single-jet topology with a local significance of 5.1 standard deviations (5.8 expected). For a Higgs boson mass of 125 GeV, an excess of events above the expected background is observed (expected) with a local significance of 1.5 (0.7) standard deviations. The measured cross section times branching fraction for production via gluon fusion of H → bbˉb\bar{b} with reconstructed pT_T > 450 GeV and in the pseudorapidity range -2.5 < η < 2.5 is 74±48(stat)−10+17_{-10}^{+17}(syst) fb, which is consistent within uncertainties with the standard model prediction
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