Desarrollo de la habilidad argumentativa a través de cuestiones socio científicas (CSC)

A continuación se presentan los avances de un proyecto de investigación en el que seabordan las Cuestiones Socio-Científicas (CSC) en la enseñanza de las ciencias comoestrategia para el desarrollo de la habilidad argumentativa. La investigación seadelanta con estudiantes de la Institución Departamental Cacique Anamay, delmunicipio de Nimaima, Cundinamarca. Principalmente se presentan en esta ponencialos avances conceptuales y metodológicos del proyecto los cuales se fundamentan enlos programas de intervención cognitiva para el desarrollo de habilidades depensamiento.Palabras clavesArgumentación, CSC, intervención

Modelo de gestión para la empresa Imporcat Colombia Ltda.

IMPORCAT COLOMBIA TDA, es una empresa familiar que se ha mantenido a través de 3 años por los esfuerzos y arriesgadas decisiones tomadas por sus socios, quienes claramente vieron la necesidad de incrementar su productividad y eficiencia para así crecer, hacerla más sólida y lograr los objetivos a corto y largo plazo. Con el fin de realizar un estudio más a fondo y obtener propuestas más concretas para el mejoramiento de la misma empresa, este Trabajo de Grado se enfocó en el área administrativa de la empresa, diseñando un modelo de gestión que permita direccionar la empresa a la mejora continua. Esta tesis también tiene un enfoque de aprendizaje, ya que se pretende que los socios, comprendan cada uno de los pasos que se llevaron a cabo durante el trabajo, desde la documentación de los procesos hasta los problemas a atacar, siempre buscando la mejor solución

Modelo de gestión para la empresa Imporcat Colombia Ltda.

IMPORCAT COLOMBIA TDA, es una empresa familiar que se ha mantenido a través de 3 años por los esfuerzos y arriesgadas decisiones tomadas por sus socios, quienes claramente vieron la necesidad de incrementar su productividad y eficiencia para así crecer, hacerla más sólida y lograr los objetivos a corto y largo plazo. Con el fin de realizar un estudio más a fondo y obtener propuestas más concretas para el mejoramiento de la misma empresa, este Trabajo de Grado se enfocó en el área administrativa de la empresa, diseñando un modelo de gestión que permita direccionar la empresa a la mejora continua. Esta tesis también tiene un enfoque de aprendizaje, ya que se pretende que los socios, comprendan cada uno de los pasos que se llevaron a cabo durante el trabajo, desde la documentación de los procesos hasta los problemas a atacar, siempre buscando la mejor solución

Memorias de investigación: Feria de Semilleros y Jornadas de Investigación de UNIMINUTO, Seccional Antioquia - Chocó.

Esta publicación busca divulgar investigaciones y producción académica en diferentes disciplinas, realizadas por estudiantes y docentes de UNIMINUTO Seccional Antioquia – Chocó, así como dar a conocer a los semilleros de investigación que participaron en la VI Feria de Semilleros, con el fin de visibilizar el trabajo que realiza el Centro de Investigación para el Desarrollo de UNIMINUTO Bello —CIDUB—, con respecto a debates académicos y espacios de interlocución

Search for dark matter produced in association with bottom or top quarks in √s = 13 TeV pp collisions with the ATLAS detector

A search for weakly interacting massive particle dark matter produced in association with bottom or top quarks is presented. Final states containing third-generation quarks and miss- ing transverse momentum are considered. The analysis uses 36.1 fb−1 of proton–proton collision data recorded by the ATLAS experiment at √s = 13 TeV in 2015 and 2016. No significant excess of events above the estimated backgrounds is observed. The results are in- terpreted in the framework of simplified models of spin-0 dark-matter mediators. For colour- neutral spin-0 mediators produced in association with top quarks and decaying into a pair of dark-matter particles, mediator masses below 50 GeV are excluded assuming a dark-matter candidate mass of 1 GeV and unitary couplings. For scalar and pseudoscalar mediators produced in association with bottom quarks, the search sets limits on the production cross- section of 300 times the predicted rate for mediators with masses between 10 and 50 GeV and assuming a dark-matter mass of 1 GeV and unitary coupling. Constraints on colour- charged scalar simplified models are also presented. Assuming a dark-matter particle mass of 35 GeV, mediator particles with mass below 1.1 TeV are excluded for couplings yielding a dark-matter relic density consistent with measurements

Measurement of B-c(2S)(+) and B-c*(2S)(+) cross section ratios in proton-proton collisions at root s=13 TeV

Peer reviewe

Measurement of the W gamma Production Cross Section in Proton-Proton Collisions at root s=13 TeV and Constraints on Effective Field Theory Coefficients

A fiducial cross section for W gamma production in proton-proton collisions is measured at a center-of-mass energy of 13 TeV in 137 fb(-1) of data collected using the CMS detector at the LHC. The W -> e nu and mu nu decay modes are used in a maximum-likelihood fit to the lepton-photon invariant mass distribution to extract the combined cross section. The measured cross section is compared with theoretical expectations at next-to-leading order in quantum chromodynamics. In addition, 95% confidence level intervals are reported for anomalous triple-gauge couplings within the framework of effective field theory.Peer reviewe

Reconstruction of signal amplitudes in the CMS electromagnetic calorimeter in the presence of overlapping proton-proton interactions

A template fitting technique for reconstructing the amplitude of signals produced by the lead tungstate crystals of the CMS electromagnetic calorimeter is described. This novel approach is designed to suppress the contribution to the signal of the increased number of out-of-time interactions per beam crossing following the reduction of the accelerator bunch spacing from 50 to 25 ns at the start of Run 2 of the LHC. Execution of the algorithm is sufficiently fast for it to be employed in the CMS high-level trigger. It is also used in the offline event reconstruction. Results obtained from simulations and from Run 2 collision data (2015-2018) demonstrate a substantial improvement in the energy resolution of the calorimeter over a range of energies extending from a few GeV to several tens of GeV.Peer reviewe

Observation of the Production of Three Massive Gauge Bosons at root s=13 TeV

The first observation is reported of the combined production of three massive gauge bosons (VVV with V = W, Z) in proton-proton collisions at a center-of-mass energy of 13 TeV. The analysis is based on a data sample recorded by the CMS experiment at the CERN LHC corresponding to an integrated luminosity of 137 fb(-1). The searches for individualWWW, WWZ, WZZ, and ZZZ production are performed in final states with three, four, five, and six leptons (electrons or muons), or with two same-sign leptons plus one or two jets. The observed (expected) significance of the combinedVVV production signal is 5.7 (5.9) standard deviations and the corresponding measured cross section relative to the standard model prediction is 1.02(-0.23)(+0.26). The significances of the individual WWW and WWZ production are 3.3 and 3.4 standard deviations, respectively. Measured production cross sections for the individual triboson processes are also reported

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

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