As linhas ou alinhavos do tempo: jogos de linguagem e os sentidos de tempo nas Políticas Curriculares de História

In this article, we selected some analyses developed from questions of the entitled research Curriculum policies of the History teaching: the time games and language games. This project has a profile that investigates the senses of subject and time in the curriculum policy of History of the municipal schools of a Santa Catarina city, built by teachers, in the context of National Curriculum Parameters of History orientations. In this specific part of the article, we analyzed the senses of time of that curriculum policy and took as empiricism the current curriculum, created in 2011, that is analyzed from the suggestions of “chains of equivalence”, “significant void” and disputes by “hegemonies” studied by Ernesto Laclau (2011). In the field of education and curriculum, we approached the research by Alice Casimiro Lopes (2012), Alice Casemiro Lopes and Danielle dos Santos Matheus (2011), as also the investigations by Elizabeth Macedo (2006, 2009) and the theories by Carmen Teresa Gabriel (2011, 2013). In the first section, we did a brief cartography of the discussions about time considering what matters to a short panorama of the established debates over the theme in multiple areas of knowledge. In sequence, we highlighted the discussions in the consolidated concept of time in the field of History, as well as the ones related to time and teaching of History. Based on those arguments, we socialized the analyses about the senses of time that are mobilized in this curriculum policy.Keywords: curriculum, public policies, History teaching, time.Neste artigo, recortamos algumas análises desenvolvidas a partir de interrogações da pesquisa intitulada “Políticas Curriculares do Ensino de História: os jogos de tempo e jogos de linguagem”. Essa pesquisa possui um recorte de análise que busca investigar os sentidos de sujeito e tempo na política curricular de história da rede municipal de uma cidade catarinense, construída pelos professores, no contexto das orientações dos Parâmetros Curriculares Nacionais de História. Nesse recorte específico do artigo, analisamos os sentidos de tempo dessa política curricular e tomamos como empiria o currículo em vigência, elaborado em 2011, que é analisado a partir de sugestões das “cadeias de equivalências”, “significantes vazio” e disputas por “hegemonias” trabalhadas por Ernesto Laclau (2011). No campo da Educação e do Currículo, nos aproximamos dos trabalhos de Alice Casemiro Lopes (2012), Alice Casemiro Lopes e Danielle dos Santos Matheus (2011), como também das produções de Elizabeth Macedo (2006, 2009) e, ainda, dos escritos de Carmen Teresa Gabriel (2011, 2013). Na primeira seção, fazemos uma breve cartografia das discussões sobre tempo no que importa para um breve panorama das discussões convencionadas sobre o tema em múltiplas áreas do conhecimento e, na sequência, destacamos as discussões do conceito de tempo consolidadas no campo da História, assim como as discussões relacionadas ao tempo e ao ensino da História. A partir desses argumentos, socializamos as análises acerca dos sentidos de tempo que são mobilizados nessa política curricular.Palavras-chave: currículo, políticas públicas, ensino de história, tempo

Measurement of the cross-section of high transverse momentum vector bosons reconstructed as single jets and studies of jet substructure in pp collisions at √s = 7 TeV with the ATLAS detector

This paper presents a measurement of the cross-section for high transverse momentum W and Z bosons produced in pp collisions and decaying to all-hadronic final states. The data used in the analysis were recorded by the ATLAS detector at the CERN Large Hadron Collider at a centre-of-mass energy of √s = 7 TeV;{\rm Te}{\rm V}$and correspond to an integrated luminosity of$4.6\;{\rm f}{{{\rm b}}^{-1}}$. The measurement is performed by reconstructing the boosted W or Z bosons in single jets. The reconstructed jet mass is used to identify the W and Z bosons, and a jet substructure method based on energy cluster information in the jet centre-of-mass frame is used to suppress the large multi-jet background. The cross-section for events with a hadronically decaying W or Z boson, with transverse momentum${{p}_{{\rm T}}}\gt 320\;{\rm Ge}{\rm V}$and pseudorapidity$|\eta |\lt 1.9$, is measured to be${{\sigma }_{W+Z}}=8.5\pm 1.7$ pb and is compared to next-to-leading-order calculations. The selected events are further used to study jet grooming techniques

Search for the neutral Higgs bosons of the minimal supersymmetric standard model in pp collisions at root s=7 TeV with the ATLAS detector

A search for neutral Higgs bosons of the Minimal Supersymmetric Standard Model (MSSM) is reported. The analysis is based on a sample of proton-proton collisions at a centre-of-mass energy of 7TeV recorded with the ATLAS detector at the Large Hadron Collider. The data were recorded in 2011 and correspond to an integrated luminosity of 4.7 fb-1 to 4.8 fb-1. Higgs boson decays into oppositely-charged muon or τ lepton pairs are considered for final states requiring either the presence or absence of b-jets. No statistically significant excess over the expected background is observed and exclusion limits at the 95% confidence level are derived. The exclusion limits are for the production cross-section of a generic neutral Higgs boson, φ, as a function of the Higgs boson mass and for h/A/H production in the MSSM as a function of the parameters mA and tan β in the mhmax scenario for mA in the range of 90GeV to 500 GeV. Copyright CERN

Search for R-parity-violating supersymmetry in events with four or more leptons in sqrt(s) =7 TeV pp collisions with the ATLAS detector

A search for new phenomena in final states with four or more leptons (electrons or muons) is presented. The analysis is based on 4.7 fb−1 of $\sqrt{s}=7\;\mathrm{TeV}$ proton-proton collisions delivered by the Large Hadron Collider and recorded with the ATLAS detector. Observations are consistent with Standard Model expectations in two signal regions: one that requires moderate values of missing transverse momentum and another that requires large effective mass. The results are interpreted in a simplified model of R-parity-violating supersymmetry in which a 95% CL exclusion region is set for charged wino masses up to 540 GeV. In an R-parity-violating MSUGRA/CMSSM model, values of m 1/2 up to 820 GeV are excluded for 10 < tan β < 40

Search for pair-produced long-lived neutral particles decaying to jets in the ATLAS hadronic calorimeter in ppcollisions at √s=8TeV

The ATLAS detector at the Large Hadron Collider at CERN is used to search for the decay of a scalar boson to a pair of long-lived particles, neutral under the Standard Model gauge group, in 20.3fb−1of data collected in proton–proton collisions at √s=8TeV. This search is sensitive to long-lived particles that decay to Standard Model particles producing jets at the outer edge of the ATLAS electromagnetic calorimeter or inside the hadronic calorimeter. No significant excess of events is observed. Limits are reported on the product of the scalar boson production cross section times branching ratio into long-lived neutral particles as a function of the proper lifetime of the particles. Limits are reported for boson masses from 100 GeVto 900 GeV, and a long-lived neutral particle mass from 10 GeVto 150 GeV

Search for direct pair production of the top squark in all-hadronic final states in proton-proton collisions at s√=8 TeV with the ATLAS detector

The results of a search for direct pair production of the scalar partner to the top quark using an integrated luminosity of 20.1fb−1 of proton–proton collision data at √s = 8 TeV recorded with the ATLAS detector at the LHC are reported. The top squark is assumed to decay via t˜→tχ˜01 or t˜→ bχ˜±1 →bW(∗)χ˜01 , where χ˜01 (χ˜±1 ) denotes the lightest neutralino (chargino) in supersymmetric models. The search targets a fully-hadronic final state in events with four or more jets and large missing transverse momentum. No significant excess over the Standard Model background prediction is observed, and exclusion limits are reported in terms of the top squark and neutralino masses and as a function of the branching fraction of t˜ → tχ˜01 . For a branching fraction of 100%, top squark masses in the range 270–645 GeV are excluded for χ˜01 masses below 30 GeV. For a branching fraction of 50% to either t˜ → tχ˜01 or t˜ → bχ˜±1 , and assuming the χ˜±1 mass to be twice the χ˜01 mass, top squark masses in the range 250–550 GeV are excluded for χ˜01 masses below 60 GeV