Measurement of prompt J/psi pair production in pp collisions at root s = 7 Tev

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Study of hadronic event-shape variables in multijet final states in pp collisions at root s=7 TeV

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Search for neutral MSSM Higgs bosons decaying to a pair of tau leptons in pp collisions

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Constraints on the Higgs boson width from off-shell production and decay to Z-boson pairs

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Search for top-squark pairs decaying into Higgs or Z bosons in pp collisions at root s=8 TeV

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Measurement of the t(t)over-bar production cross section in pp collisions at root s=8 TeV in dilepton final states containing one tau lepton

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Search for pair production of third-generation scalar leptoquarks and top squarks in proton-proton collisions at v root s=8 TeV

A search for pair production of third-generation scalar leptoquarks and supersymmetric top quark partners, top squarks, in final states involving tau leptons and bottom quarks is presented. The search uses events from a data sample of proton-proton collisions corresponding to an integrated luminosity of 19.7 fb(-1), collected with the CMS detector at the LHC with root s = 8 TeV. The number of observed events is found to be in agreement with the expected standard model background. Third-generation scalar leptoquarks with masses below 740 GeV are excluded at 95% confidence level, assuming a 100% branching fraction for the leptoquark decay to a tau lepton and a bottom quark. In addition, this mass limit applies directly to top squarks decaying via an R-parity violating coupling. lambda(') (333). The search also considers a similar signature from top squarks undergoing a chargino-mediated decay involving the Rparity violating coupling. lambda(')(3jk). Each top squark decays to a tau lepton, a bottom quark, and two light quarks. Top squarks in this model with masses below 580 GeV are excluded at 95% confidence level. The constraint on the leptoquark mass is the most stringent to date, and this is the first search for top squarks decaying via. lambda(')(3jk). (C) 2014 The Authors. Published by Elsevier B. V.

Search for jet extinction in the inclusive jet-p(T) spectrum from proton-proton collisions at root s=8 TeV

The first search at the LHC for the extinction of QCD jet production is presented, using data collected with the CMS detector corresponding to an integrated luminosity of 10.7 fb-1 of proton-proton collisions at a center-of-mass energy of 8 TeV. The extinction model studied in this analysis is motivated by the search for signatures of strong gravity at the TeV scale (terascale gravity) and assumes the existence of string couplings in the strong-coupling limit. In this limit, the string model predicts the suppression of all high-transverse-momentum standard model processes, including jet production, beyond a certain energy scale. To test this prediction, the measured transverse-momentum spectrum is compared to the theoretical prediction of the standard model. No significant deficit of events is found at high transverse momentum. A 95% confidence level lower limit of 3.3 TeV is set on the extinction mass scale.

Searches for electroweak neutralino and chargino production in channels with Higgs, Z, and W bosons in pp collisions at 8 TeV

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Observation of the diphoton decay of the Higgs boson and measurement of its properties

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

O lúdico no ensino de espanhol como língua estrangeira

Este trabalho discute a importância do lúdico no processo de ensino e aprendizagem de espanhol como língua estrangeira. Para tanto, apresenta um panorama histórico com as principais concepções filosóficas, psicológicas e educacionais acerca da prática dos jogos. Os marcos de referência são, sobretudo, os estudos de Kishimoto, que operam uma releitura dos postulados de Froebel, Piaget, Vygotsky e Bruner. Esses pressupostos teóricos são levados ao contexto de aprendizagem da língua espanhola e constituem uma defesa de um ensino significativo do idioma, que se baseia na capacidade de criação, exploração e argumentação do aluno, e privilegia um ambiente de motivação e descontração. A partir de uma proposta educativa que valoriza a formação cognitiva, social e afetiva dos aprendizes, e se atenta a questões como o prazer e a alegria, encaminha-se uma breve análise dos livros didáticos de espanhol selecionados pelo PNLD, bem como uma observação da presença de atividades lúdicas nesses materiais. Diante da expressiva oferta de cursos de idiomas para idosos, e do crescente interesse desse público em aprender uma segunda língua, este estudo contempla, também, a cultura lúdica inserida no espaço de ensino a grupos da terceira idade, uma vez que os benefícios dos jogos e brincadeiras se estendem a qualquer faixa etária. São elaboradas, ainda, algumas atividades destinadas ao ensino de espanhol para esse público, pois nunca é tarde para brincar

Com quanta tristeza de faz uma depressão

Resenha do livro A tristeza perdida de Allan V. Horwitz e Jerome C. Wakefield - Summus Editorial 2010

Concilier les données qualitatives et quantitatives: un défi pour les recherches en acquisition du langage

What is the role of qualitative data? How should mixed approaches be considered? Is it necessary to complement the quantitative approach by the qualitative approach (Maziére et al., 2010) or the opposite? How can these two approaches be combined in a Language Acquisition research? What are the possibilities of generalization that these approaches provide? Besides those necessary theoretical discussions, our starting point is a qualitative research on the acquisition of the plural morpheme in Brazilian Portuguese (BP) in children between 1 year 11 months old and 2 years 7 months old (Hilário, 2012), whose linguistic production is intrinsically connected to their dialogic aspect (Bakhtin & Vološinov, 1973) and to the interaction among interlocutors (Bruner, 2004; Vygotsky, 1986). In this research through the usage of a computational tool (CLAN) it is expected to have more visibility of the quantitative results even if they are in a qualitative approach. Although, it should be taken into account the fact that each approach can achieve valid and relevant results (Valsiner 2000), i.e., with any given method it is possible to reach a kind of generalization (statistical or analytical).

Measurement of the pp → ZZ production cross section and constraints on anomalous triple gauge couplings in four-lepton final states at √s = 8 TeV

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Search for new resonances decaying via WZ to leptons in proton–proton collisions √s=8TeV

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)