Reingeniería en cableadora para la fabricación de conductores eléctricos

Tesis (Maestro en Ciencias de la Administración con Especialidad en Producción y Calidad) U.A.N.L - 2005UANLhttp://www.uanl.mx

Validation of the incorporation of emotional response in consumer-based sensory development: case study in Peruvian craft beers

It is important to identify the emotional response and sensorial needs of consumers to get commercial success of the alimentary sector in order to improve the consumption experience. Obtaining attractive characteristics through the application of the Kano model allows increase the consumer satisfaction. Furthermore, the Napping®-Ultra Flash Profile (UFP) methodology makes it possible that producers of craft beers may well reliably characterize their products. Likewise, the use of External Preference Mapping (EPM) allows the identification of those highly accepted products. In this sense, the goal of the present study was to validate, through the application of EPM, that the incorporation of the Kano model in the sensory design increases consumer satisfaction in turn obtaining the sensory profile of Peruvian craft beers. The Kano model permitted to determine the attractive characteristics of representative craft beers of the Lima market: the presence of exotic fruits, fruity smell, presence of Andean cereals and high alcoholic grade, and, based on these characteristics, a prototype of craft beer was developed. By using Napping®-UFP, consumers positioned and described the six samples of Peruvian craft beers (five commercial brands and the prototype), we found that the prototype developed showed floral smell, herbal odor, fruity smell, light golden color, bubbly, exotic fruits, and high alcoholic grade. The EPM showed that 80% of consumers scored the prototype with a high grade of taste. Finally, putting together these techniques turns out to be useful in obtaining products that are highly accepted by the consumer and this methodology could be applied to other products

Apalancamiento y rentabilidad de la empresa AGROINDUSTRIAS AIB S.A, periodos 2015 al 2019

El presente artículo tuvo como objetivo determinar la relación que existe entre el apalancamiento financiero y la rentabilidad de la empresa Agroindustrias AIB S.A, periodos 2015-2019. El diseño metodológico es no experimental con un aporte descriptivo y a la vez correlacional. Es cuantitativo debido a que se usaron datos numéricos y descriptivos porque la investigación analizo los periodos de la empresa ya auditados, correlacional por el hecho de que se explica de qué maneras está relacionado el apalancamiento y rentabilidad de la empresa. La muestra del estudio estuvo constituida por 20 estados financieros trimestrales de los periodos 2015 al 2019, donde los resultados indican que existe una relación media y significativa entre apalancamiento y rentabilidad en la empresa, al obtener un coeficiente de Rho de spearman de 0,614 con una significancia de 0,001. Se concluye, que la empresa en base a sus finanzas, no cuentan con un buen apalancamiento financiero, debido a que con el efectivo y la solvencia necesaria no podrá realizar sus actividades, es por ello que la empresa, mantiene constante financiamiento con entidades bancarias para ser sujetos de afiliación en algún momento de crisis financiera en la empresa.LIMAEscuela Profesional de ContabilidadFinanza

Déficit ecológico de la cubierta forestal, Estado de México

El estudio anticipa déficit de tierras de productividad media para mantener la producción y consumo forestal en el Estado de México. A través de la información documental, estadística, cartográfica y de verificación, se caracteriza el estado de la cubierta y aprovechamiento forestal, y los escenarios de déficit ecológico se determinaron mediante el método de huella ecológica. El balance del impacto del aprovechamiento y la capacidad productiva de las tierras forestales, expone el déficit ecológico que sintetiza los efectos acumulados de la explotación extractiva. La incapacidad de los activos forestales para sostener la producción maderable y la provisión de leña en el tiempo, advierte intensificación de la extracción selectiva y descenso de la productividad natural. La prospectiva de escasez ecológica exige cambios en las maneras de gestionar los bienes y servicios forestales, mediante políticas y acciones que promuevan sinergias sociales, económicas y medioambientales a través de alternativas de desarrollo rural comunitario, ordenen el ciclo aprovechamiento-venta-consumo de productos forestales, garanticen la estabilidad de las cubiertas forestales por medio de ecotasas y un fondo de daño ambiental que financie proyectos de mitigación y recuperación, establezcan monitoreo regular de la productividad, la capacidad de carga y los límites de aprovechamiento.The study anticipates deficit land use and average productivity to maintain forest production and consumption in the State of Mexico. Through the documentary, statistical, cartographic and verification information, the state of the forest cover and its use is characterized, and the scenarios of ecological deficit were determined by means of the ecological footprint method. The net impact of the exploitation and productive capacity of forest lands exposes the ecological deficit that synthesizes the accumulated effects of extractive exploitation. The inability of forest assets to sustain timber production and the supply of firewood over time, warns of the intensification of selective extraction and decrease in natural productivity. The prospective of ecological scarcity demands changes in the ways of managing forest goods and services, through policies and actions that promote social, economic and environmental synergies through community rural development alternatives, order the use-sale-consumption cycle of forest products, guarantee the stability of forest cover through ecotaxes and an environmental damage fund that finances mitigation and recovery projects, establishing regular monitoring of productivity, carrying capacity and harvest limits.O estudo prevê défice médio de produtividade da terra para manter a produção e consumo de floresta no estado do México. A capacidade de equilíbrio da terra e impacto da exploração madeireira, expõe o déficit ecológico que sintetiza os efeitos cumulativos, a incapacidade da terra para manter a produção de madeira e fornecimento de madeira ao longo do tempo, adverte intensificação da extração seletiva e declínio na produtividade natural. A perspectiva de escassez requer mudanças nas formas de gerir bens e serviços florestais, através de políticas que promovam o meio ambiente através do desenvolvimento rural alternativa sociais, as sinergias económicas e médio, utilizar o ciclo de pedidos de vendas de consumo de produtos florestais, garantia a estabilidade da floresta coberta por impostos verdes e fundo de danos ambientais para financiar projetos de mitigação e recuperação, estabelecer um acompanhamento regular do limites de produtividade, capacidade e utilização. Através documentário, informação cartográfica estatística e cobertura de status de verificação e recursos de log e cenários déficit ecológico foram determinados pelo método da pegada

Differential cross section measurements for the production of a W boson in association with jets in proton–proton collisions at √s = 7 TeV

Measurements are reported of differential cross sections for the production of a W boson, which decays into a muon and a neutrino, in association with jets, as a function of several variables, including the transverse momenta (pT) and pseudorapidities of the four leading jets, the scalar sum of jet transverse momenta (HT), and the difference in azimuthal angle between the directions of each jet and the muon. The data sample of pp collisions at a centre-of-mass energy of 7 TeV was collected with the CMS detector at the LHC and corresponds to an integrated luminosity of 5.0 fb[superscript −1]. The measured cross sections are compared to predictions from Monte Carlo generators, MadGraph + pythia and sherpa, and to next-to-leading-order calculations from BlackHat + sherpa. The differential cross sections are found to be in agreement with the predictions, apart from the pT distributions of the leading jets at high pT values, the distributions of the HT at high-HT and low jet multiplicity, and the distribution of the difference in azimuthal angle between the leading jet and the muon at low values.United States. Dept. of EnergyNational Science Foundation (U.S.)Alfred P. Sloan Foundatio

Optimasi Portofolio Resiko Menggunakan Model Markowitz MVO Dikaitkan dengan Keterbatasan Manusia dalam Memprediksi Masa Depan dalam Perspektif Al-Qur`an

Risk portfolio on modern finance has become increasingly technical, requiring the use of sophisticated mathematical tools in both research and practice. Since companies cannot insure themselves completely against risk, as human incompetence in predicting the future precisely that written in Al-Quran surah Luqman verse 34, they have to manage it to yield an optimal portfolio. The objective here is to minimize the variance among all portfolios, or alternatively, to maximize expected return among all portfolios that has at least a certain expected return. Furthermore, this study focuses on optimizing risk portfolio so called Markowitz MVO (Mean-Variance Optimization). Some theoretical frameworks for analysis are arithmetic mean, geometric mean, variance, covariance, linear programming, and quadratic programming. Moreover, finding a minimum variance portfolio produces a convex quadratic programming, that is minimizing the objective function ðð¥with constraintsð ð 𥠥 ðandð´ð¥ = ð. The outcome of this research is the solution of optimal risk portofolio in some investments that could be finished smoothly using MATLAB R2007b software together with its graphic analysis

Impacts of the Tropical Pacific/Indian Oceans on the Seasonal Cycle of the West African Monsoon

The current consensus is that drought has developed in the Sahel during the second half of the twentieth century as a result of remote effects of oceanic anomalies amplified by local land–atmosphere interactions. This paper focuses on the impacts of oceanic anomalies upon West African climate and specifically aims to identify those from SST anomalies in the Pacific/Indian Oceans during spring and summer seasons, when they were significant. Idealized sensitivity experiments are performed with four atmospheric general circulation models (AGCMs). The prescribed SST patterns used in the AGCMs are based on the leading mode of covariability between SST anomalies over the Pacific/Indian Oceans and summer rainfall over West Africa. The results show that such oceanic anomalies in the Pacific/Indian Ocean lead to a northward shift of an anomalous dry belt from the Gulf of Guinea to the Sahel as the season advances. In the Sahel, the magnitude of rainfall anomalies is comparable to that obtained by other authors using SST anomalies confined to the proximity of the Atlantic Ocean. The mechanism connecting the Pacific/Indian SST anomalies with West African rainfall has a strong seasonal cycle. In spring (May and June), anomalous subsidence develops over both the Maritime Continent and the equatorial Atlantic in response to the enhanced equatorial heating. Precipitation increases over continental West Africa in association with stronger zonal convergence of moisture. In addition, precipitation decreases over the Gulf of Guinea. During the monsoon peak (July and August), the SST anomalies move westward over the equatorial Pacific and the two regions where subsidence occurred earlier in the seasons merge over West Africa. The monsoon weakens and rainfall decreases over the Sahel, especially in August.Peer reviewe

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

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.

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

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

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