High pTp_{T} non-photonic electron production in pp+pp collisions at s\sqrt{s} = 200 GeV

We present the measurement of non-photonic electron production at high transverse momentum ($p_T >$ 2.5 GeV/$c$) in $p$ + $p$ collisions at $\sqrt{s}$ = 200 GeV using data recorded during 2005 and 2008 by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The measured cross-sections from the two runs are consistent with each other despite a large difference in photonic background levels due to different detector configurations. We compare the measured non-photonic electron cross-sections with previously published RHIC data and pQCD calculations. Using the relative contributions of B and D mesons to non-photonic electrons, we determine the integrated cross sections of electrons ($\frac{e^++e^-}{2}$) at 3 GeV/$c < p_T <~$10 GeV/$c$ from bottom and charm meson decays to be ${d\sigma_{(B\to e)+(B\to D \to e)} \over dy_e}|_{y_e=0}$ = 4.0$\pm0.5$({\rm stat.})$\pm1.1$({\rm syst.}) nb and ${d\sigma_{D\to e} \over dy_e}|_{y_e=0}$ = 6.2$\pm0.7$({\rm stat.})$\pm1.5$({\rm syst.}) nb, respectively.Comment: 17 pages, 17 figure

Search for dark matter in events with heavy quarks and missing transverse momentum in pp collisions with the ATLAS detector

This article reports on a search for dark matterpair production in association with bottom or top quarks in20.3fb−1ofppcollisions collected at√s=8TeVbytheATLAS detector at the LHC. Events with large missing trans-verse momentum are selected when produced in associationwith high-momentum jets of which one or more are identifiedas jets containingb-quarks. Final states with top quarks areselected by requiring a high jet multiplicity and in some casesa single lepton. The data are found to be consistent with theStandard Model expectations and limits are set on the massscale of effective field theories that describe scalar and tensorinteractions between dark matter and Standard Model par-ticles. Limits on the dark-matter–nucleon cross-section forspin-independent and spin-dependent interactions are alsoprovided. These limits are particularly strong for low-massdark matter. Using a simplified model, constraints are set onthe mass of dark matter and of a coloured mediator suitableto explain a possible signal of annihilating dark matter

Erucic acid in feed and food

The Panel wishes to thank the members of the Working Group on erucic acid in food and feed: Bruce Cottrill, Eugenia Dogliotti, Juha Laakso, Manfred Metzler, Leonardo Velasco and Christiane Vleminckx for the preparatory work on this scientific output, the hearing expert: Mary Sheppard and EFSA staff members: Katleen Baert, Barbara Dörr, Jose Angel Gomez Ruiz and Enikő Varga for the support provided to this scientific opinion. The Panel acknowledges all European countries and European stakeholder organisations (FEDIOL, SNE and FEFAC) that provided occurrence data on erucic acid in food and feed. The Panel wishes to thank all European countries that supported the collection of consumption data for the Comprehensive European Food Consumption Database.Peer reviewedPublisher PD

Normative visual acuity in infants and preschool-aged children in Sydney

© 2014 Acta Ophthalmologica Scandinavica Foundation. Published by John Wiley & Sons Ltd. Purpose To provide population-based normative visual acuity (VA) by age, in children participating in the Sydney Paediatric Eye Disease Study aged 6 to <72 months. Methods Monocular VA was measured using the Amblyopia Treatment Study (ATS HOTV) protocol (24 to <72 months). Some children were also tested using linear ETDRS or HOTV logMAR VA charts (30 to <72 months). If unable to perform recognition acuity, the Teller Acuity Cards II (TAC II) was performed (6 to <42 months). Children with significant refractive error or ocular disease were excluded. Results Improvement in VA with age was shown on all three vision tests (all p < 0.0001). Mean VA using ATS HOTV (n = 836) was 0.13 logMAR (6/8) at <36 months, which improved to -0.01 (6/6) at 66 to <72 months. Mean ETDRS/HOTV (n = 399) VA was 0.26 logMAR (6/11) at <36 months, which improved to 0.1 (6/7.5) at 66 to <72 months. Mean monocular TAC II (n = 442) was 5.7 cycles/degree (0.72 logMAR) at 6 to <9 months and improved to 12.4 cycles/degree (0.38 logMAR) at age 30 to <33 months. Associations with ATS HOTV VA included prematurity (p = 0.027) and socio economic status (SES) factors such as home ownership (p = 0.039) and employment of one (p = 0.019) or both parents (p = 0.003). Conclusions VA norms in children improved with age and were different according to the VA test used. Low SES was associated with poorer VA, supporting the need for test specific VA norms to be established for different populations. The ATS HOTV appears to be the best test to use for vision screening due to its lower false positive referral rate

Risks to human and animal health related to the presence of deoxynivalenol and its acetylated and modified forms in food and feed

Peer reviewedPublisher PD

Search for direct production of charginos and neutralinos in events with three leptons and missing transverse momentum in √s = 8 TeV pp collisions with the ATLAS detector

A search for the direct production of charginos and neutralinos in final states with three leptons and missing transverse momentum is presented. The analysis is based on 20.3 fb−1 of s√ = 8 TeV proton-proton collision data delivered by the Large Hadron Collider and recorded with the ATLAS detector. Observations are consistent with the Standard Model expectations and limits are set in R-parity-conserving phenomenological Minimal Supersymmetric Standard Models and in simplified supersymmetric models, significantly extending previous results. For simplified supersymmetric models of direct chargino (χ˜±1) and next-to-lightest neutralino (χ˜02) production with decays to lightest neutralino (χ˜01) via either all three generations of sleptons, staus only, gauge bosons, or Higgs bosons, (χ˜±1) and (χ˜02) masses are excluded up to 700 GeV, 380 GeV, 345 GeV, or 148 GeV respectively, for a massless (χ˜01

A experiência e o tempo na passagem da adolescência contemporânea

Resumo Este artigo, na forma de ensaio, resulta de uma pesquisa teórica que discutiu as categorias da experiência e do tempo para a constituição psíquica do adolescente. Articulando a psicanálise do adolescente com o tema do tempo e o conceito de experiência em Walter Benjamin, problematizamos a passagem adolescente em meio às configurações do tempo no laço social. O artigo sugere que não nos precipitemos na ciranda de diagnósticos, pois a sintomatologia da adolescência atual pode ser tomada como um modo de expressão do sofrimento juvenil quando do encontro com as condições da cultura. Tais condições podem produzir uma dilatação do tempo de compreender, adiando o encontro com o momento de concluir. Assim, a fim de que se construam condições para o sujeito se precipitar em uma interpretação de si, além do instante, do tempo e do momento, surgiria uma espécie de intervalo como efeito de dilatação do tempo de compreender.</jats:p

Guidebook to Creating a Collaborative Environment Between Airport Operations and Maintenance

ACRP Report 92: Guidebook to Creating a Collaborative Environment Between Airport Operations and Maintenance provides tools and strategies that can be used to increase and improve collaboration between operations and maintenance staffs at airports. The tools include exercises, case studies, and other resources. The report also provides methods to identify warning signs of collaboration issues between operations and maintenance staffs. This guidebook will be useful to front-line supervisors, managers, or senior leaders who wish to increase or improve collaboration between operations and maintenance departments. The tools and strategies are applicable to be applied with other departments as well