Fatores associados à sintomas de distúrbios osteomusculares em professores da rede pública municipal de Cuiabá-MT

Introduction: Work-related musculoskeletal disorders are injuries resulting from the excessive use of the musculoskeletal system. This study analyzed musculoskeletal symptoms and associated factors in primary school teachers in the municipal public network in Cuiabá, Mato Grosso.Methods: A cross-sectional study was conducted with 326 teachers. Data collection instruments included the Vocal Production Condition, Self-Reporting Questionnaire, and Nordic Musculoskeletal Questionnaire. The dependent variable was the presence or absence of musculoskeletal symptoms. Bivariate analysis using chi-square test and prevalence ratios with 95% confidence intervals, as well as multiple analysis using Poisson regression model, were performed.Results: In the multiple analysis, it was found that the presence of musculoskeletal symptoms was significantly associated (p<0.05) with the following risk factors: common mental disorders (PRa=1.45), regularly lifting weights (PRa=1.26), and performing intense physical effort (PRa=1.22). Additionally, a significant association was identified between these symptoms and contracted teachers (PRa=0.82), as well as an interaction between performing intense physical effort and regularly lifting weights (PRa=0.75), which acted as protective factors for symptom presence.Conclusion: It is concluded that work characteristics were important risk factors for the development of musculoskeletal symptoms in the last twelve months. The results of this study are believed to provide a basis for decision-making by managers and stakeholders in implementing preventive measures in the work environment of these teachers.Introducción: Los trastornos musculoesqueléticos relacionados con el trabajo son lesiones relacionadas con daños por uso excesivo del sistema musculoesquelético. El objetivo fue analizar los síntomas musculo esqueléticos y los factores asociados en profesores de enseñanza básica de escuelas públicas municipales de la ciudad de Cuiabá, Mato Grosso, Brasil.Métodos: Estudio transversal, la muestra era de 326 docentes. Para la recolección de datos se utilizaron los instrumentos: Condición de Producción Vocal, Self-Reporting Questionnaire y el Cuestionario Nórdico Musculoesquelético. Se realizó un análisis bivariado, mediante la prueba de chi-cuadrado y razones de prevalencia con intervalos de confianzas de 95% y un análisis múltiple con el modelo de regresión de Poisson.Resultados: En el análisis múltiple se demostró que la presencia de síntomas musculo esqueléticos se asoció significativamente (p<0,05) con los siguientes factores de riesgo: tener trastornos mentales comunes (RPa=1,45), cargar peso con frecuencia (RPa=1,26) y realizar un esfuerzo físico intenso (RPa= 1,22). Además, se identificó asociación significativa entre estos síntomas y los docentes contratados (RPa= 0,82), así como para la interacción realizar esfuerzo físico intenso y cargar peso con frecuente (RPa=0,75), siendo estos factores protectores para la presencia de síntomas.Conclusión: Se concluyó que las características del trabajo demostraron ser importantes factores de riesgo para el desarrollo de síntomas musculoesqueléticos en los últimos doce meses. Y se cree que los resultados de este estudio pueden subsidiar a los gestores y responsables de acciones preventivas en el ambiente de trabajo de estos docentes.Introdução: Os distúrbios osteomusculares relacionados ao trabalho são lesões relacionadas a danos do uso excessivo do sistema musculoesquelético. O objetivo foi analisar os sintomas osteomusculares e os fatores associados em professores do ensino fundamental da rede pública municipal na cidade de Cuiabá, Mato Grosso.Metodologia: Estudo transversal, a amostra foi de 326 professores. Para coleta de dados foram utilizados os instrumentos: Condição de Produção Vocal, Self-Reporting Questionnaire e o Nordic Musculoskeletal Questionnaire. A variável dependente foi à presença ou não de sintomas osteomusculares. Foi realizada uma análise bivariada, utilizando teste qui-quadrado e razões de prevalências com intervalos de confianças 95% e uma análise múltipla com o modelo de regressão de Poisson. Resultados: Na análise múltipla, foi evidenciado que a presença de sintomas osteomusculares, foi significativamente associada (p<0,05) com os seguintes fatores de risco: possuir transtornos mentais comuns (RPa=1,45), carregar peso com frequência (RPa=1,26) e realizar esforço físico intenso (RPa= 1,22). Além disso, foi identificada associação significativa, entre estes sintomas e professores contratados (RPa= 0,82), assim como para a interação realizar esforço físico intenso e carregar peso com frequência (RPa=0,75), sendo estes, fatores de proteção para a presença de sintomas.Conclusão: Conclui-se que as características de trabalho demostraram ser importantes fatores de risco para o acometimento dos sintomas osteomusculares nos últimos doze meses. E acredita-se que, os resultados deste estudo podem subsidiar gestores e responsáveis para ações preventivas no ambiente laboral destes professores

SAÚDE COLETIVA EM MATO GROSSO: NOTAS SOBRE A REMASCO

O Instituto de Saúde Coletiva da Universidade Federal de Mato Grosso promove a formação em Saúde Coletiva, desde 1993, no âmbito da pós-graduação e, a partir de 2010, em nível de graduação, o que fomentou a criação da Semana Acadêmica de Saúde Coletiva, em 2011, e do Encontro Estadual de Saúde Coletiva (ENESCO MT), em 2017. Este trabalho tece algumas notas sobre a Reunião Científica dos Estudantes Matogrossenses de Saúde Coletiva (REMASCO), criada e realizada em 2020, enquanto atividade pré-evento do ENESCO e como um espaço de aglutinação e interlocução entre estudantes da área. Destarte, aponta para a potencialidade da ação que, assentada na extensão universitária e no aporte da promoção da saúde, instaura-se como espaço de divulgação de informação/conhecimento de/sobre saúde

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 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

Peer reviewe

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

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

Bose-Einstein correlations of charged hadrons in proton-proton collisions at s\sqrt s = 13 TeV

Bose-Einstein correlations of charged hadrons are measured over a broad multiplicity range, from a few particles up to about 250 reconstructed charged hadrons in proton-proton collisions at $\sqrt{s}$ = 13 TeV. The results are based on data collected using the CMS detector at the LHC during runs with a special low-pileup configuration. Three analysis techniques with different degrees of dependence on simulations are used to remove the non-Bose-Einstein background from the correlation functions. All three methods give consistent results. The measured lengths of homogeneity are studied as functions of particle multiplicity as well as average pair transverse momentum and mass. The results are compared with data from both CMS and ATLAS at $\sqrt{s}$ = 7 TeV, as well as with theoretical predictions.[graphic not available: see fulltext]Bose-Einstein correlations of charged hadrons are measured over a broad multiplicity range, from a few particles up to about 250 reconstructed charged hadrons in proton-proton collisions at $\sqrt{s} =$ 13 TeV. The results are based on data collected using the CMS detector at the LHC during runs with a special low-pileup configuration. Three analysis techniques with different degrees of dependence on simulations are used to remove the non-Bose-Einstein background from the correlation functions. All three methods give consistent results. The measured lengths of homogeneity are studied as functions of particle multiplicity as well as average pair transverse momentum and mass. The results are compared with data from both CMS and ATLAS at $\sqrt{s} =$ 7 TeV, as well as with theoretical predictions

Search for an L-mu - L-tau gauge boson using Z -> 4 mu events in proton-proton collisions at root s=13 TeV

A search for a narrow Z' gauge boson with a mass between 5 and 70 GeV resulting from an L-mu - L-tau U (1) local gauge symmetry is reported. Theories that predict such a particle have been proposed as an explanation of various experimental discrepancies, including the lack of a dark matter signal in direct-detection experiments, tension in the measurement of the anomalous magnetic moment of the muon, and reports of possible lepton flavor universality violation in B meson decays. A data sample of proton-proton collisions at a center-of-mass energy of 13 TeV is used, corresponding to an integrated luminosity of 77.3 fb(-1) recorded in 2016 and 2017 by the CMS detector at the LHC. Events containing four muons with an invariant mass near the standard model Z boson mass are analyzed, and the selection is further optimized to be sensitive to the events that may contain Z -> Z'mu mu -> 4 mu decays. The event yields are consistent with the standard model predictions. Upper limits of 10(-8)-10(-7) at 95% confidence level are set on the product of branching fractions B(Z -> Z'mu mu)B(Z' -> mu mu), depending on the Z' mass, which excludes a Z' boson coupling strength to muons above 0.004-0.3. These are the first dedicated limits on L-mu - L-tau models at the LHC and result in a significant increase in the excluded model parameter space. The results of this search may also be used to constrain the coupling strength of any light Z' gauge boson to muons. (C) 2019 The Author(s). Published by Elsevier B.V.Peer reviewe

Search for dark matter in events with a leptoquark and missing transverse momentum in proton-proton collisions at 13 TeV

A search is presented for dark matter in proton-proton collisions at a center-of-mass energy of root s= 13 TeV using events with at least one high transverse momentum (p(T)) muon, at least one high-p(T) jet, and large missing transverse momentum. The data were collected with the CMS detector at the CERN LHC in 2016 and 2017, and correspond to an integrated luminosity of 77.4 fb(-1). In the examined scenario, a pair of scalar leptoquarks is assumed to be produced. One leptoquark decays to a muon and a jet while the other decays to dark matter and low-p(T) standard model particles. The signature for signal events would be significant missing transverse momentum from the dark matter in conjunction with a peak at the leptoquark mass in the invariant mass distribution of the highest p(T) muon and jet. The data are observed to be consistent with the background predicted by the standard model. For the first benchmark scenario considered, dark matter masses up to 500 GeV are excluded for leptoquark masses m(LQ) approximate to 1400 GeV, and up to 300 GeV for m(LQ) approximate to 1500 GeV. For the second benchmark scenario, dark matter masses up to 600 GeV are excluded for m(LQ) approximate to 1400 GeV. (C) 2019 The Author(s). Published by Elsevier B.V.Peer reviewe

Measurement of electroweak WZ boson production and search for new physics in WZ + two jets events in pp collisions at √s=13TeV

A measurement of WZ electroweak (EW) vector boson scattering is presented. The measurement is performed in the leptonic decay modes WZ→ℓνℓ′ℓ′, where ℓ,ℓ′=e,μ. The analysis is based on a data sample of proton-proton collisions at √s=13 TeV at the LHC collected with the CMS detector and corresponding to an integrated luminosity of 35.9 fb−1. The WZ plus two jet production cross section is measured in fiducial regions with enhanced contributions from EW production and found to be consistent with standard model predictions. The EW WZ production in association with two jets is measured with an observed (expected) significance of 2.2 (2.5) standard deviations. Constraints on charged Higgs boson production and on anomalous quartic gauge couplings in terms of dimension-eight effective field theory operators are also presented