1,167 research outputs found

    A perícia médico-legal e os achados sugestivos de violência sexual contra mulher

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    INTRODUÇÃO: A violência sexual contra a mulher possui proporção universal e não idealiza apenas a violência por meios coercitivos de agressão ao corpo da mulher, ela afeta a vítima tanto no aspecto físico quando no aspecto psicológico. Embora este tipo de violência deixe seus vestígios bem definidos, a maioria dos casos tornam-se sem resolução pois a vítima na maioria das vezes se cala em razão de uma série de motivos, destacam-se o motivo de temor ao agressor e a sua não responsabilização por ausência de provas. Nesse cenário, a perícia realizada em órgão oficial do Estado torna-se imperiosa ao auxiliar a justiça na busca pela verdade e na resolução de casos que envolvam agressões sexuais. OBJETIVO: Realizar uma revisão narrativa a respeito dos possíveis achados que indicam a ocorrência de uma suposta violência sexual contra a mulher em uma perícia médico-legal. MÉTODOS: Foi desenvolvida uma revisão narrativa, tendo como base a análise de 12 artigos publicados nos últimos 10 anos na base de dados da Biblioteca virtual de saúde LILAC, SCIELO e MEDLINE versando sobre a perícia sexológica e seus achados indicativos de violência sexual em mulheres, através da utilização dos seguintes descritores: Perícia sexológica, achados, violência sexual e mulher. RESULTADOS: O alto índice de violência sexual contra a mulher é uma questão ainda latente no Brasil, isso porque a grande maioria das mulheres insistem em não registrar o ocorrido, seja por receio de que as autoridades não acreditem em sua palavra, vergonha do fato, e até mesmo por temerem a impunidade do autor do crime. Nesse sentido, a perícia médico-legal em casos de estupro torna-se instrumento comprobatório essencial para a investigação do suspeito, com a finalidade de reunir os elementos constitutivos do exame de corpo de delito para serem utilizados a favor da vítima, através de uma série de exames específicos realizados no instituto de medicina legal, além de acolhimento à vítima e abordagem cautelosa, detalhada e paciente com a mulher durante todo o exame. CONCLUSÃO: Em suma, percebe-se não há outro meio de analisar um fato, supostamente de origem criminal, que não seja a partir da avaliação e valoração de prova pericial. Existem achados decisivos para concluir casos de violência sexual na perícia sexológica, dentre eles, destaca-se a coleta de material biológico para análise e identificação genética do suspeito. Assim, um atendimento humanizado, atencioso e detalhado, somado ao maior número de achados possíveis indicativos de violência sexual na vítima para embasar o laudo realizado pelo Perito Médico Legista, possibilitam além de um resgate moral, a segurança jurídica que elas necessitam após o infortuno

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

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    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

    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.

    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 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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    Search for supersymmetry in events with one lepton and multiple jets in proton-proton collisions at root s=13 TeV

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    Measurement of the azimuthal anisotropy of Y(1S) and Y(2S) mesons in PbPb collisions at root s(NN)=5.02 TeV

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    The second-order Fourier coefficients (v(2)) characterizing the azimuthal distributions of Y(1S) and Y(2S) mesons produced in PbPb collisions at root s(NN) = 5.02 TeV are studied. The Y mesons are reconstructed in their dimuon decay channel, as measured by the CMS detector. The collected data set corresponds to an integrated luminosity of 1.7 nb(-1). The scalar product method is used to extract the v2 coefficients of the azimuthal distributions. Results are reported for the rapidity range vertical bar y vertical bar < 2.4, in the transverse momentum interval 0 < pT < 50 GeV/c, and in three centrality ranges of 10-30%, 30-50% and 50-90%. In contrast to the J/psi mesons, the measured v(2) values for the Y mesons are found to be consistent with zero. (C) 2021 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

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    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
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