903 research outputs found

    Performance of the CMS Cathode Strip Chambers with Cosmic Rays

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    The Cathode Strip Chambers (CSCs) constitute the primary muon tracking device in the CMS endcaps. Their performance has been evaluated using data taken during a cosmic ray run in fall 2008. Measured noise levels are low, with the number of noisy channels well below 1%. Coordinate resolution was measured for all types of chambers, and fall in the range 47 microns to 243 microns. The efficiencies for local charged track triggers, for hit and for segments reconstruction were measured, and are above 99%. The timing resolution per layer is approximately 5 ns

    Performance and Operation of the CMS Electromagnetic Calorimeter

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    The operation and general performance of the CMS electromagnetic calorimeter using cosmic-ray muons are described. These muons were recorded after the closure of the CMS detector in late 2008. The calorimeter is made of lead tungstate crystals and the overall status of the 75848 channels corresponding to the barrel and endcap detectors is reported. The stability of crucial operational parameters, such as high voltage, temperature and electronic noise, is summarised and the performance of the light monitoring system is presented

    La participación laboral de las mujeres: un reto para el bienestar social.

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    Este trabajo ha sido posible gracias a la cobertura de los proyectos de investigación “Riesgos y oportunidades a lo largo del curso de la vida en las sociedades postindustriales” (CICYT. Sec2003-06799), dirigido por Esping-Andersen (Universitat Pompeu Fabra) y “Nuevos Riesgos Sociales y Trayectorias de las Políticas del Bienestar” (NURSOPOB) (MEC, Plan Nacional de I+D+I), dirigidos por Luis Moreno (Unidad de Políticas Comparadas, CSIC). Agradezco a ambos el apoyo que me han prestado para poderle llevar a cabo, y de forma muy particular, a Ana Arriba y Luis Moreno, por sus comentarios y colaboración en versiones anteriores del mismo

    Search for massive resonances in dijet systems containing jets tagged as W or Z boson decays in pp collisions at √s=8 TeV

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    Measurement of top quark–antiquark pair production in association with a W or Z boson in pp collisions at √s=8 TeV

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    Searches for electroweak production of charginos, neutralinos, and sleptons decaying to leptons and W, Z, and Higgs bosons in pp collisions at 8 TeV

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    Search for new phenomena with the M-T2 variable in the all-hadronic final state produced in proton-proton collisions at root s=13TeV

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    Searches for supersymmetry using the M-T2 variable in hadronic events produced in pp collisions at 8 TeV

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    Constraints on parton distribution functions and extraction of the strong coupling constant from the inclusive jet cross section in pp collisions at √s=7 TeV

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    Extracciones dentarias en pacientes en tratamiento con anticoagulantes: revisión de la literatura

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    Objetivo del trabajo. En pacientes en terapia con anticoagulantes orales, una simple extracción puede provocar hemorragias importantes. En la literatura se describen dos enfoques terapéuticos en casos de intervenciones quirúrgicas en esta categoría de pacientes. Uno propone la reducción de la dosis terapéutica del fármaco, mientras que el segundo sugiere la sustitución con heparina. El objetivo de este trabajo es revisar la literatura que trata este tema con el fin de obtener un protocolo ideal. Conclusiones. En caso de extracciones simples es suficiente usar anestesia con vasoconstrictor (en el caso de que no haya otras contraindicaciones), realizar suturas bien tensadas, aplicar coadyuvantes hemostáticos locales y ácido tranexámico tópico. Solo en casos de intervenciones más complejas, o con valores de INR mayores a 3,5, será necesario reducir la dosis del fármaco y consecuente sustitución con heparina de acuerdo a las instrucciones del hematólogo y del cardiólogo. Aim of the work. In patients treated with oral anticoagulants, even simple tooth extractions can produce large hemorrhages. There are two main therapeutic outlines suggested in literature in case of little oral surgery. The first one is based on the reduction of the therapeutic dose of the drug, and the second one on the substitution with heparin. The aim of this paper was to review the.literature on the management of patients treated with anticoagulants in order to obtain univocal guidelines. Conclusion. In case of simple tooth extractions generally a vasoconstrictive anaesthetic (if there are no other contraindications), tight sutures, the application of hemostats and tronexamic acid are enough. Only in case of more complex surgery or of INR values higher than 3,5 it is necessory to reduce the anticoagulant dose or to change the therapy with heparin, if agreed by the hoemotologist and/ or the cardiologist
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