Conocimientos certeros y falacias sobre sexualidad, de varones atendidos en el Centro de Salud Gustavo Lanatta Luján

Objetivo: Determinar los conocimientos certeros y falacias sobre sexualidad, de varones atendidos en el centro de salud Gustavo Lanatta Luján en el mes de setiembre de 2010.Material y Método: Diseño descriptivo simple, observacional, transversal. La muestra del estudio fue de 250 varones atendidos en los consultorios de medicina y odontología, y el muestreo fue no probabilístico por conveniencia.Resultados: Los participantes fueron jóvenes en un 65,2% y adultos en un 34.8%. Tanto los jóvenes (45.3%) como los adultos (22.3%) tienen conocimientos certeros de nivel regular. En cuanto a las falacias sobre sexo y sobre relación de pareja, la actitud es favorable; mientras que sobre sexualidad de la mujer y sobre sexualidad del hombre, la actitud es indiferente. En todos los casos se observó significancia estadística.Conclusiones: Los varones presentan un nivel de conocimientos regular y mantienen sus afirmaciones erróneas; es decir, poseen falacias sobre sexualidad

Centrality evolution of the charged-particle pseudorapidity density over a broad pseudorapidity range in Pb-Pb collisions at root s(NN)=2.76TeV

Peer reviewe

La evaluación colegiada de las competencias básicas en la Comunidad Autónoma de Canarias : hacia un modelo de escuela inclusiva y sostenible

Precede al título: Educación Primaria y Educación Secundaria ObligatoriaLa Ley Orgánica de Educación (LOE) introduce el concepto de «competencias básicas» como eje articulador del currículo, conectando de pleno con las reflexiones y las estrategias que se están desarrollando en otros sistemas educativos internacionales a la luz del informe Delors (1996), el documento DeSeCo (Definición y Selección de Competencias fundamentales) elaborado por la OCDE, de las evaluaciones PISA (Programa para la Evaluación Internacional del Alumnado), etc. Esta propuesta centra el foco en la dimensión formativa de la «evaluación», aspecto inacabado con la LOGSE (Ley Orgánica General del Sistema Educativo), a pesar de los esfuerzos realizados en esa dirección. Trabajar en las aulas para la consecución de las «competencias básicas» lleva ineludiblemente al problema de cómo evaluarlas de forma colegiada —cuando la propia ordenación del sistema educativo fragmenta cada una de las enseñanzas en diferentes áreas o materias— y de cómo emplear la información que proporciona esta labor para hacer valer el sentido formativo y regulador que debe tener la evaluación de las competencias básicas.Consejería de Educación y Universidades. Dirección General de Ordenación, Innovación y Promoción Educativa; Avda. Buenos Aires, 5; 38071 Tenerife; Tel. +34922592592; Fax +34922592570; [email protected]

Characterisation of microbial attack on archaeological bone

As part of an EU funded project to investigate the factors influencing bone preservation in the archaeological record, more than 250 bones from 41 archaeological sites in five countries spanning four climatic regions were studied for diagenetic alteration. Sites were selected to cover a range of environmental conditions and archaeological contexts. Microscopic and physical (mercury intrusion porosimetry) analyses of these bones revealed that the majority (68%) had suffered microbial attack. Furthermore, significant differences were found between animal and human bone in both the state of preservation and the type of microbial attack present. These differences in preservation might result from differences in early taphonomy of the bones. © 2003 Elsevier Science Ltd. All rights reserved

Suppression of charged particle production at large transverse momentum in central Pb–Pb collisions at √sNN=2.76 TeV

Inclusive transverse momentum spectra of primary charged particles in Pb–Pb collisions at √sNN=2.76 TeV have been measured by the ALICE Collaboration at the LHC. The data are presented for central and peripheral collisions, corresponding to 0–5% and 70–80% of the hadronic Pb–Pb cross section. The measured charged particle spectra in |η|<0.8 and 0.3<pT<20 GeV/c are compared to the expectation in pp collisions at the same sNN, scaled by the number of underlying nucleon–nucleon collisions. The comparison is expressed in terms of the nuclear modification factor RAA. The result indicates only weak medium effects (RAA≈0.7) in peripheral collisions. In central collisions, RAA reaches a minimum of about 0.14 at pT=6–7 GeV/c and increases significantly at larger pT. The measured suppression of high-pT particles is stronger than that observed at lower collision energies, indicating that a very dense medium is formed in central Pb–Pb collisions at the LHC

Two-pion Bose–Einstein correlations in central Pb–Pb collisions at √sNN=2.76 TeV

The first measurement of two-pion Bose–Einstein correlations in central Pb–Pb collisions at √sNN=2.76 TeV at the Large Hadron Collider is presented. We observe a growing trend with energy now not only for the longitudinal and the outward but also for the sideward pion source radius. The pion homogeneity volume and the decoupling time are significantly larger than those measured at RHIC

Coherent J/ψ photoproduction in ultra-peripheral Pb–Pb collisions at √sNN=2.76 TeV

The ALICE Collaboration has made the first measurement at the LHC of J/ψ photoproduction in ultra-peripheral Pb–Pb collisions at sNN=2.76 TeV. The J/ψ is identified via its dimuon decay in the forward rapidity region with the muon spectrometer for events where the hadronic activity is required to be minimal. The analysis is based on an event sample corresponding to an integrated luminosity of about 55 μb−1. The cross section for coherent J/ψ production in the rapidity interval −3.6<y<−2.6 is measured to be dσJ/ψcoh/dy=1.00±0.18(stat)−0.26+0.24(syst) mb. The result is compared to theoretical models for coherent J/ψ production and found to be in good agreement with those models which include nuclear gluon shadowing

Inclusive J/ψ production in pp collisions at √s=2.76 TeV

The ALICE Collaboration has measured inclusive J/ψ production in pp collisions at a center-of-mass energy √s=2.76 TeV at the LHC. The results presented in this Letter refer to the rapidity ranges |y|<0.9 and 2.5<y<4 and have been obtained by measuring the electron and muon pair decay channels, respectively. The integrated luminosities for the two channels are Linte=1.1 nb−1 and Lintμ=19.9 nb−1, and the corresponding signal statistics are NJ/ψe+e−=59±14 and NJ/ψμ+μ−=1364±53. We present dσJ/ψ/dy for the two rapidity regions under study and, for the forward-y range, d2σJ/ψ/dydpt in the transverse momentum domain 0<pt<8 GeV/c. The results are compared with previously published results at s=7 TeV and with theoretical calculations

Multi-strange baryon production in pp collisions at √s=7 TeV with ALICE

A measurement of the multi-strange Ξ− and Ω− baryons and their antiparticles by the ALICE experiment at the CERN Large Hadron Collider (LHC) is presented for inelastic proton–proton collisions at a centre-of-mass energy of 7 TeV. The transverse momentum (pT) distributions were studied at mid-rapidity (|y|6.0 GeV/c. We also illustrate the difference between the experimental data and model by comparing the corresponding ratios of (Ω−+Ω¯+)/(Ξ−+Ξ¯+) as a function of transverse mass