33 research outputs found
Measurement of the inclusive and dijet cross-sections of b-jets in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
The inclusive and dijet production cross-sections have been measured for jets
containing b-hadrons (b-jets) in proton-proton collisions at a centre-of-mass
energy of sqrt(s) = 7 TeV, using the ATLAS detector at the LHC. The
measurements use data corresponding to an integrated luminosity of 34 pb^-1.
The b-jets are identified using either a lifetime-based method, where secondary
decay vertices of b-hadrons in jets are reconstructed using information from
the tracking detectors, or a muon-based method where the presence of a muon is
used to identify semileptonic decays of b-hadrons inside jets. The inclusive
b-jet cross-section is measured as a function of transverse momentum in the
range 20 < pT < 400 GeV and rapidity in the range |y| < 2.1. The bbbar-dijet
cross-section is measured as a function of the dijet invariant mass in the
range 110 < m_jj < 760 GeV, the azimuthal angle difference between the two jets
and the angular variable chi in two dijet mass regions. The results are
compared with next-to-leading-order QCD predictions. Good agreement is observed
between the measured cross-sections and the predictions obtained using POWHEG +
Pythia. MC@NLO + Herwig shows good agreement with the measured bbbar-dijet
cross-section. However, it does not reproduce the measured inclusive
cross-section well, particularly for central b-jets with large transverse
momenta.Comment: 10 pages plus author list (21 pages total), 8 figures, 1 table, final
version published in European Physical Journal
Prevalence and clinical features of celiac disease in patients with autoimmune thyroiditis: cross-sectional study
Prenatal care and childbirth assistance in Amazonian women before and after the Pacific Highway Construction (2003â2011): a cross-sectional study
The molecular cytogenetic characterization of Conopophaga lineata indicates a common chromosome rearrangement in the Parvorder Furnariida (Aves, Passeriformes)
El componente educativo en el abordaje integral del asma bronquial The educational component in an integrated approach to bronchial asthma
El asma bronquial es una enfermedad inflamatoria crĂłnica de las vĂas respiratorias cuya prevalencia estĂĄ aumentando en el mundo. Actualmente no se dispone de un tratamiento curativo, y el objetivo principal de todo abordaje es el control de la enfermedad y la optimizaciĂłn de la calidad de vida de los pacientes. En este sentido, durante las Ășltimas dĂ©cadas se han estado implementando y evaluando programas de intervenciĂłn complementarios a los tratamientos mĂ©dicos convencionales. Gran parte de Ă©stos consisten en intervenciones educativas o incluyen algĂșn tipo de componente educativo. El objetivo del presente trabajo fue analizar las caracterĂsticas y el impacto de las intervenciones educativas en el asma, a travĂ©s de: a) revisiĂłn actualizada sobre los diferentes tipos de intervenciones educativas desarrolladas e implementadas para el asma; b) identificaciĂłn de aspectos comunes a todas estas intervenciones; c) anĂĄlisis de los hallazgos de la investigaciĂłn referidos a su impacto sobre la salud y la calidad de vida de los pacientes. Se concluye que las intervenciones educativas son efectivas para mejorar la salud y la calidad de vida de los pacientes con asma, y para reducir el uso y el costo de recursos sanitarios. Estos hallazgos señalan la importancia de incluir el componente educativo como parte esencial del abordaje integral de esta poblaciĂłn clĂnica. Asimismo, la complejidad inherente al proceso educativo pone de manifiesto la necesidad del trabajo conjunto y complementario entre diferentes profesionales de la salud.<br>Bronchial asthma is an inflammatory chronic disease of the respiratory tract whose prevalence is increasing worldwide. Since there is no curative treatment available, the principal objective of every approach is to control the disease and to improve the quality of life of patients. Over the last few decades, intervention programs supplementing conventional medical treatments have been tested and implemented. The majority of such programs consist of educational interventions or include some type of educational component. In this study, we attempted to determine the characteristics and the impact of educational interventions on asthma by means of the following: a) an updated review of the various educational interventions developed and implemented for asthma patients; b) the identification of aspects that are common to all of these interventions; and c) the analysis of the findings in the literature regarding the impact that these interventions have on the health and quality of life of patients. We conclude that educational interventions are effective in improving the health and quality of life of asthma patients, as well as in reducing the use and costs of health resources. These findings indicate the importance of including an educational component as part of an integrated approach to this population. Likewise, the inherent complexity of the educational process highlights the importance of a complementary joint effort including various health professionals