Social cognition in schizophrenia: focus on theory of mind abilities

Theory of mind is the term used to designate human abilities to infer the state of mind or intentions of others. Such abilities are part of a major group of cognitive capabilities specifically related to social behavior, known as social cognition. Schizophrenia is a mental disorder that usually consists of severe social functioning. There are many studies available on the relations between disorders of theory of mind abilities and schizophrenia symptoms. Many authors believe that schizophrenia symptoms might be directly understood by focusing on some changes in Theory of Mind abilities. Other authors claim that such changes observed in schizophrenic patients are the result of their general cognitive impairment. There are still few studies related to the impact of the use of antipsychotics on social cognition and Theory of Mind abilities, which present methodological problems.Teoria da mente é o nome que tem sido dado à habilidade que os seres humanos têm de inferir os estados mentais ou as intenções de outros seres humanos. Tais habilidades fazem parte de um grupo maior de capacidades cognitivas, especificamente relacionadas ao comportamento social, denominado cognição social. A esquizofrenia é um transtorno mental que costuma cursar grave comprometimento do funcionamento social. Existem vários estudos correlacionando transtornos das habilidades teoria da mente e sintomas da esquizofrenia com resultados ainda controversos. Muitos autores acreditam que os sintomas da esquizofrenia podem ser diretamente compreendidos à luz de alterações das habilidades teoria da mente, enquanto outros argumentam que as alterações dessas habilidades observadas em esquizofrênicos são reflexo de seu comprometimento cognitivo geral. Ainda existem poucos estudos relacionando o impacto do uso de antipsicóticos sobre a cognição social e habilidades teoria da mente e eles apresentam problemas metodológicos.Universidade Federal do Paraná Instituto de Psiquiatria do ParanáUniversidade Federal de São Paulo (UNIFESP) Instituto de Psiquiatria do ParanáUNIFESP, Instituto de Psiquiatria do ParanáSciEL

Compulsive buying: systematic review of the therapeutic options

This study included randomized and non-randomized controlled trials on pharmacological treatment of compulsive buying published in English or Portuguese. Databases evaluated were MEDLINE, PsycINFO, Biological Abstracts and Cochrane Central Register of Controlled Trials. Of all six selected articles, only two were placebo-controlled randomized trials, and one had a first open-label phase followed by a second placebo-controlled phase. It is important to stress that all studies excluded bipolar patients. All the studies reviewed included small samples (from 10 to 42 patients). Current available evidence regarding pharmacological treatment of compulsive buying is poor due to the lack of studies using more rigorous methodology.O presente estudo inclui ensaios clínicos randomizados, controlados ou não, a respeito do tratamento farmacológico de comprar compulsivo, publicados em inglês ou em português nas bases MEDLINE, PsycINFO, Biological Abstracts e Cochrane Central Register of Controlled Trials. De todos os seis artigos selecionados, apenas dois eram estudos duplo-cegos controlados com placebo desde o princípio, e um terceiro era composto de uma fase inicial aberta seguida de uma segunda fase randomizada e placebo-controlada. É importante destacar que, em todos os estudos, pacientes com transtorno afetivo bipolar foram excluídos. Todos os ensaios envolveram amostras pequenas (variaram de 10 a 42 pacientes). De maneira geral, as evidências atualmente disponíveis a respeito do tratamento farmacológico de comprar compulsivo são pobres, em virtude da escassez de mais estudos metodologicamente bem conduzidos.Universidade Federal de São Paulo (UNIFESP)Hospital Nossa Senhora da Luz Disciplina de Medicina Baseada em Evidências da Residência em PsiquiatriaHospital Nossa Senhora da LuzUNIFESPSciEL

Measurement of differential cross sections for top quark pair production using the lepton plus jets final state in proton-proton collisions at 13 TeV

National Science Foundation (U.S.

Particle-flow reconstruction and global event description with the CMS detector

The CMS apparatus was identified, a few years before the start of the LHC operation at CERN, to feature properties well suited to particle-flow (PF) reconstruction: a highly-segmented tracker, a fine-grained electromagnetic calorimeter, a hermetic hadron calorimeter, a strong magnetic field, and an excellent muon spectrometer. A fully-fledged PF reconstruction algorithm tuned to the CMS detector was therefore developed and has been consistently used in physics analyses for the first time at a hadron collider. For each collision, the comprehensive list of final-state particles identified and reconstructed by the algorithm provides a global event description that leads to unprecedented CMS performance for jet and hadronic tau decay reconstruction, missing transverse momentum determination, and electron and muon identification. This approach also allows particles from pileup interactions to be identified and enables efficient pileup mitigation methods. The data collected by CMS at a centre-of-mass energy of 8 TeV show excellent agreement with the simulation and confirm the superior PF performance at least up to an average of 20 pileup interactions

Identification of heavy-flavour jets with the CMS detector in pp collisions at 13 TeV

Many measurements and searches for physics beyond the standard model at the LHC rely on the efficient identification of heavy-flavour jets, i.e. jets originating from bottom or charm quarks. In this paper, the discriminating variables and the algorithms used for heavy-flavour jet identification during the first years of operation of the CMS experiment in proton-proton collisions at a centre-of-mass energy of 13 TeV, are presented. Heavy-flavour jet identification algorithms have been improved compared to those used previously at centre-of-mass energies of 7 and 8 TeV. For jets with transverse momenta in the range expected in simulated $\mathrm{t}\overline{\mathrm{t}}$ events, these new developments result in an efficiency of 68% for the correct identification of a b jet for a probability of 1% of misidentifying a light-flavour jet. The improvement in relative efficiency at this misidentification probability is about 15%, compared to previous CMS algorithms. In addition, for the first time algorithms have been developed to identify jets containing two b hadrons in Lorentz-boosted event topologies, as well as to tag c jets. The large data sample recorded in 2016 at a centre-of-mass energy of 13 TeV has also allowed the development of new methods to measure the efficiency and misidentification probability of heavy-flavour jet identification algorithms. The heavy-flavour jet identification efficiency is measured with a precision of a few per cent at moderate jet transverse momenta (between 30 and 300 GeV) and about 5% at the highest jet transverse momenta (between 500 and 1000 GeV)

Search for heavy resonances decaying to a top quark and a bottom quark in the lepton+jets final state in proton–proton collisions at 13 TeV

info:eu-repo/semantics/publishe

Evidence for the Higgs boson decay to a bottom quark–antiquark pair

info:eu-repo/semantics/publishe

Pseudorapidity and transverse momentum dependence of flow harmonics in pPb and PbPb collisions

info:eu-repo/semantics/publishe

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