2,243 research outputs found
Antithrombotic strategies in elderly patients with atrial fibrillation revascularized with drug-eluting stents: PACO-PCI (EPIC-15) registry
No full textTorre Hernandez, J.M. de la, Ferreiro, J.L., Lopez-Palop, R., Ojeda, S., Marti, D., Avanzas, P., Linares, J.A., Diego, A., Amat, I.J., Telleria, M., Cid, B., Otaegui, I., Lozano, I., Serrano, D., Pinar, E., González-Manzanares, R., Concepción-Suárez, R., Pascual, I., Urbano, C., Sadaba, M., Garcia-Guimaraes, M., Andres-Cordon, J.F., Hernandez, F., Sanchez-Recalde, A., Garilleti, C., Perez de Prado, A
Measurement of the D+/- production asymmetry in 7 TeV pp collisions
No full textThe asymmetry in the production cross-section \sigma of D+/- mesons, A_P = (\sigma(D+) - \sigma(D-))/(\sigma(D+) + \sigma(D-)), is measured in bins of pseudorapidity \eta and transverse momentum p_T within the acceptance of the LHCb detector. The result is obtained with a sample of D+ -> K_S pi+ decays corresponding to an integrated luminosity of 1.0 fb^-1, collected in pp collisions at a centre of mass energy of 7 TeV at the Large Hadron Collider. When integrated over the kinematic range 2.0 K_S pi+ decay is negligible. No significant dependence on \eta or p_T is observed
Evolução química e história de formação estelar no universo local
No full textTese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Física, Florianópolis, 2010Analisamos as galáxias do Sloan Digital Sky Survey com o nosso código de síntese espectral Starlight. O Starlight acha a combinação de populações estelares simples de diferentes idades e metalicidades que melhor modela o espectro de uma galáxia. Ele permite derivar vários parâmetros associados a uma galáxia, como a massa em estrelas, a história de formação estelar e a evolução química. A partir do espectro residual puramente nebular (subtraindo do espectro observado o modelado), medimos as linhas de emissão, das quais derivamos propriedades do gás dentro das galáxias. Estudamos a evolução das galáxias com formação estelar. Constatamos que as galáxias de maior massa formaram suas estrelas e seus metais mais rapidamente. A evolução da metalicidade das estrelas é estudada diretamente. Calibramos também a taxa de formação estelar atual medida pela síntese com a medida pela luminosidade de Halfa. Derivamos a relação massa estelar-metalicidade estelar (M*-Z*) em diferentes redshifts. Esta é a primeira vez que a relação M*-Z* é calculada para o mesmo conjunto de galáxias. Observamos que a metalicidade estelar observada tem uma evolução compatível com um modelo simples de evolução química de caixa fechada. Para as galáxias classificadas como LINERs, encontramos que a luminosidade observada em Halfa é compatível com o número de fótons ionizantes emitidos pelas populações estelares velhas dessas galáxias. Este resultado implica em uma profunda revisão da taxa de atividade nuclear nas galáxias do Universo local
Specimen d'una nuova edizione del Cantar de Mio Cid (lasse 9-16)
No full textAs part of his work on a new edition of Cantar de mio Cid, the author presents a sample of the verses 100-284 of the poem in a twofold synoptic version, with an interpretative text and a critical reconstruction. The first is true to the single manuscript and only corrects the copyist’s mistakes. The latter is based on the metric theory that was explained by the author in other essays, enriched by the resort to indirect tradition, usus scribendi, conformatio textus and the plot’s inner logic. The text is accompanied by philological notes
First observation of Bs0 → D*s2+Xμ-ν decays
No full textUsing data collected with the LHCb detector in proton–proton collisions at a centre-of-mass energy of 7 TeV, the semileptonic decays B0s→D+sXμ−ν and B0s→D0K+Xμ−ν are detected. Two structures are observed in the D0K+ mass spectrum at masses consistent with the known Ds1(2536)+ and D∗s22573)+ mesons. The measured branching fractions relative to the total B0s semileptonic rate are B(B0s→D∗+s2Xμ−ν)/B(B0s→Xμ−ν) = (3.3±1.0±0.4)%, and B(B0s→D+s1Xμ−ν)/B(B0s→Xμ−ν) = (5.4±1.2±0.5)%, where the first uncertainty is statistical and the second is systematic. This is the first observation of the D∗+s2 state in B0s decays; we also measure its mass and width
«Cantar de Mio Cid», vv. 1-99. Prove di una nuova edizione
No full textIn vista di una nuova edizione del Cantar de Mio Cid, l’autore propone uno specimen dei primi 99 versi dell’opera, pubblicati in una doppia edizione sinottica: un testo interpretativo e una ricostruzione critica. Il primo è fedele al manoscritto unico, limitandosi a correggere le sviste del copista; la seconda si basa sulla teoria metrica già illustrata dall’autore in altri saggi, ma fa appello anche alla tradizione indiretta, all’usus scribendi, alla conformatio textus e alla logica interna del racconto. Il testo è corredato da note filologiche. As part of his work on a new edition of Cantar de mio Cid, the author presents a sample of the first 99 verses of the poem in a twofold synoptic version, with an interpretative text and a critical reconstruction. The first is true to the single manuscript and only corrects the copyist’s mistakes. The latter is based on the metric theory that was explained by the author in other essays, enriched by the resort to indirect tradition, usus scribendi, conformatio textus and the plot’s inner logic. The text is accompanied by philological notes. </div
Search for the decay Bs0→D*∓π±
No full textA search for the decay Bs0→D*∓π± is presented using a data sample corresponding to an integrated luminosity of 1.0 fb-1 of pp collisions collected by LHCb. This decay is expected to be mediated by a W-exchange diagram, with little contribution from rescattering processes, and therefore a measurement of the branching fraction will help us to understand the mechanism behind related decays such as Bs0→π+π- and Bs0→DD̅ . Systematic uncertainties are minimized by using B0→D*∓π± as a normalization channel. We find no evidence for a signal, and set an upper limit on the branching fraction of B(Bs0→D*∓π±)<6.1(7.8)×10-6 at 90% (95%) confidence level
Effective delivery of Complex Innovative Design (CID) cancer trials—A consensus statement
No full text\ua9 2020, The Author(s). The traditional cancer drug development pathway is increasingly being superseded by trials that address multiple clinical questions. These are collectively termed Complex Innovative Design (CID) trials. CID trials not only assess the safety and toxicity of novel anticancer medicines but also their efficacy in biomarker-selected patients, specific cancer cohorts or in combination with other agents. They can be adapted to include new cohorts and test additional agents within a single protocol. Whilst CID trials can speed up the traditional route to drug licencing, they can be challenging to design, conduct and interpret. The Experimental Cancer Medicine Centres (ECMC) network, funded by the National Institute for Health Research (NIHR), Cancer Research UK (CRUK) and the Health Boards of Wales, Northern Ireland and Scotland, formed a working group with relevant stakeholders from clinical trials units, the pharmaceutical industry, funding bodies, regulators and patients to identify the main challenges of CID trials. The working group generated ten consensus recommendations. These aim to improve the conduct, quality and acceptability of oncology CID trials in clinical research and, importantly, to expedite the process by which effective treatments can reach cancer patients
Measurements of the branching fractions of the decays B0s→D∓sK± and B0s→D−sπ+
No full textThe decay mode B0s→D∓sK± allows for one of the theoretically cleanest measurements of the CKM angle γ through the study of time-dependent CP violation. This paper reports a measurement of its branching fraction relative to the Cabibbo-favoured mode B0s→D−sπ+ based on a data sample corresponding to 0.37 fb−1 of proton-proton collisions at s√=7TeV collected in 2011 with the LHCb detector. In addition, the ratio of B meson production fractions f s /f d , determined from semileptonic decays, together with the known branching fraction of the control channel B 0 → D −π+, is used to perform an absolute measurement of the branching fractions: B(B0s→D−sπ+)=(2.95±0.05±0.17+0.18−0.22)×10−3,\hfillB(B0s→D∓sK±)=(1.90±0.12±0.13+0.12−0.14)×10−4,\hfill where the first uncertainty is statistical, the second the experimental systematic uncertainty, and the third the uncertainty due to f s /f d
J.‑C.Sanchez‑Arnau et D. Desjeux, La culture, clé du développement, L'Harmattan, 1994, Collection Alternatives rurales, 195 pages.
No full textCe livre au titre "magique" rapporte plusieurs contributions consacrées aux aspects culturels des projets de développement : réalisé sous la direction de J.C. Sanchez‑Arnau et de D.Desjeux, avec le concours de cinq consultants (deux sociologues, un anthropologue, un spécialiste en planification du développement et un expert du transfert de technologie dans les pays en développement), il tire son origine d'un séminaire organisé en 1979 par le Centre international du développement (CID). Les co..
- …
