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  • O Brasil e a transição internacional
    Publication . Seminário 'O Brasil e a Transição Internacional'; Costa, Francisco Seixas da,1948-; Vaz, Alcides Costa; Cadete, Joaquim; Cravinho, João, 1964-; Fonseca, Gelson; Freire, Maria Raquel, 1973-; Pinto, Raquel Vaz,1973-; Mah, Luís; Ramalho, Antonio Jorge; Abreu, Guilherme Mattos de; Reis, Bruno Cardoso
    2015-12-10Conference object Open access Show more
  • Leptospirose em cães: um estudo retrospetivo de 9 casos em coimbra
    Publication . Miranda, Ana Margarida Cabral Carvalho; Montezinho, Liliana Cristina Pereira; Vilhena, Hugo Corte Real
    Informações recentes sobre leptospirose clínica em Portugal e na Europa são escassos em comparação com a informação sobre esta doença nos Estados Unidos e em alguns outros países. Este estudo retrospetivo pretende descrever nove casos clínicos de cães com diagnóstico de leptospirose, com base em sinais clínicos, alteração de análises laboratoriais e sorologia. Todos os cães tinham sinais clínicos não específicos e apresentados com insuficiência renal, com ou sem sinais de insuficiência hepática e/ou tendências hemorrágicas. É abordado a compreensão e identificação de fatores comuns entre eles, bem como a sua possível implicação no desenvolvimento e evolução da doença. Segundo a declaração do consenso europeu sobre leptospirose em cães e gatos em 2015, é recomendado que os cães com leptospirose sejam tratados com 5 mg/kg BID ou 10 mg/kg SID por via oral (PO) de doxiciclina durante 14 dias, mas a escolha inicial do antibiótico utilizado recai na possibilidade do paciente tomar medicação oral. Como cães com leptospirose geralmente mostram sinais gastrointestinais, não tolerando a doxiciclina, é frequente utilizar penicilina ou derivados desta (por exemplo, penicilina G, ampicilina, amoxicilina) como terapia inicial até que a doxiciclina pode ser usada.
    2015-12-10Master thesis Restricted access Show more
  • Stepwise functional evolution in the Ffz sugar transporter family
    Publication . Gonçalves, Carla; Coelho, Marco; Oom, Madalena; Gonçalves, Paula
    2015-12-10Conference object Open access Show more
  • Search for high-mass diboson resonances with boson-tagged jets in proton-proton collisions at $ \sqrt{s}=8 $ TeV with the ATLAS detector
    Publication . ATLAS collaboration (2836 authors); Aguilar-Saavedra, Juan Antonio; Amor Dos Santos, Susana Patricia; Anjos, Nuno; Araque, Juan Pedro; Cantrill, Robert; Carvalho, João; Castro, Nuno Filipe; Conde Muiño, Patricia; Da Cunha Sargedas De Sousa, Mario Jose; Fiolhais, Miguel; Galhardo, Bruno; Gomes, Agostinho; Gonçalo, Ricardo; Jorge, Pedro; Lopes, Lourenco; Machado Miguens, Joana; Maio, Amélia; Maneira, José; Onofre, António; Palma, Alberto; Pedro, Rute; Pina, João Antonio; Pinto, Belmiro; Santos, Helena; Saraiva, João; Silva, José; Tavares Delgado, Ademar; Veloso, Filipe; Wolters, Helmut
    A search is performed for narrow resonances decaying into WW, WZ, or ZZ boson pairs using 20.3 fb$^{−1}$ of proton-proton collision data at a centre-of-mass energy of $ \sqrt{s}=8 $ TeV recorded with the ATLAS detector at the Large Hadron Collider. Diboson resonances with masses in the range from 1.3 to 3.0 TeV are sought after using the invariant mass distribution of dijets where both jets are tagged as a boson jet, compatible with a highly boosted W or Z boson decaying to quarks, using jet mass and substructure properties. The largest deviation from a smoothly falling background in the observed dijet invariant mass distribution occurs around 2 TeV in the WZ channel, with a global significance of 2.5 standard deviations. Exclusion limits at the 95% confidence level are set on the production cross section times branching ratio for the WZ final state of a new heavy gauge boson, W′, and for the WW and ZZ final states of Kaluza-Klein excitations of the graviton in a bulk Randall-Sundrum model, as a function of the resonance mass. W′ bosons with couplings predicted by the extended gauge model in the mass range from 1.3 to 1.5 TeV are excluded at 95% confidence level.
    2015-12-10Journal article Open access Show more
  • Search for flavour-changing neutral current top quark decays $t\to Hq$ in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
    Publication . ATLAS collaboration (2865 authors); Aguilar-Saavedra, Juan Antonio; Amor Dos Santos, Susana Patricia; Anjos, Nuno; Araque, Juan Pedro; Cantrill, Robert; Carvalho, João; Castro, Nuno Filipe; Conde Muiño, Patricia; Da Cunha Sargedas De Sousa, Mario Jose; Fiolhais, Miguel; Galhardo, Bruno; Gomes, Agostinho; Gonçalo, Ricardo; Jorge, Pedro; Lopes, Lourenco; Machado Miguens, Joana; Maio, Amélia; Maneira, José; Onofre, António; Palma, Alberto; Pedro, Rute; Pina, João Antonio; Santos, Helena; Saraiva, João; Silva, José; Tavares Delgado, Ademar; Veloso, Filipe; Wolters, Helmut
    A search for flavour-changing neutral current decays of a top quark to an uptype quark (q = u, c) and the Standard Model Higgs boson, where the Higgs boson decays to $ b\overline{b} $ , is presented. The analysis searches for top quark pair events in which one top quark decays to Wb, with the W boson decaying leptonically, and the other top quark decays to Hq. The search is based on pp collisions at $ \sqrt{s}=8 $ TeV recorded in 2012 with the ATLAS detector at the CERN Large Hadron Collider and uses an integrated luminosity of 20.3 fb$^{−1}$. Data are analysed in the lepton-plus-jets final state, characterised by an isolated electron or muon and at least four jets. The search exploits the high multiplicity of b-quark jets characteristic of signal events, and employs a likelihood discriminant that uses the kinematic differences between the signal and the background, which is dominated by $ t\overline{t}\to WbWb $ decays. No significant excess of events above the background expectation is found, and observed (expected) 95% CL upper limits of 0.56% (0.42%) and 0.61% (0.64%) are derived for the t → Hc and t → Hu branching ratios respectively. The combination of this search with other ATLAS searches in the H → γγ and H → WW$^{*}$, ττ decay modes significantly improves the sensitivity, yielding observed (expected) 95% CL upper limits on the t → Hc and t → Hu branching ratios of 0.46% (0.25%) and 0.45% (0.29%) respectively. The corresponding combined observed (expected) upper limits on the |λ$_{tcH}$ | and |λ$_{tuH}$ | couplings are 0.13 (0.10) and 0.13 (0.10) respectively. These are the most restrictive direct bounds on tqH interactions measured so far.
    2015-12-10Journal article Open access Show more