O ensino de informática em licenciaturas de ciências e tecnologia

The paper reflects the cumulative experience of lecturing the discipline Introdução à Informática. After a brief overview of the rationale and programme of the discipline, statistics concerning the absenteeism and approval rates will be presented.O artigo reflecte a experiência acumulada na leccionação da disciplina de Introdução à Informática. Após uma breve referência aos pressupostos e programa da disciplina apresentam-se alguns dados estatísticos relativamente ao absentismo, índices e médias de aprovação

Home monitoring in Portugal: an overview on current experiences

This paper aims to be a contribution to the discussion on the issue of innovation in healthcare since, in the author’s perspective, the health sector, and particularly the Portuguese National Health Service, needs changes in its "business model". There is a need of redirecting care provision to the citizen’s natural environment, namely considering the opportunities offered by information and communication technologies. For this purpose the authors surveyed projects already implemented in Portugal, within the Portuguese National Health Service, related to home monitoring, in order to make a critical analysis of the state of the art of ongoing projects. In this study, the authors identified four pilot experiences of home monitoring, all targeted at chronic disease. In spite of some results of these experiments are already known, there is a shortage of available information and scientific evidence, both about the implementation processes themselves and about their clinical, technical an d economic evaluation, which, in the opinion of the authors, also hinders their assessment and dissemination.publishe

The International Classification of Functioning, Disability and Health as a conceptual framework for the design, development and evaluation of AAL Services for older adults

Abstract. The paper presents the International Classification of Functioning, Disability and Health (ICF) as a comprehensive model for a holistic approach for the design, development and evaluation of Ambient Assisted Living (AAL) services for older adults. ICF can be used to systemize the information that influence individual's performance and to characterize users, theirs contexts, activities and participation. Furthermore, ICF can be used to structure a semantic characterization of AAL services and as a basis to develop methodological instruments for the services evaluation

METODOLOGIA LIVING USABILITY LAB PARA O DESENVOLVIMENTO DE SISTEMAS E SERVIÇOS AMBIENT ASSISTED LIVING

The paper aims to present the research work associated with the consolidation of the Living Usability Lab (LUL), an ecosystem devoted to the development of Ambient Assisted Living (AAL) systems and services. The paper refers the motivations behind the development of LUL and presents its goals and its constituent entities: i) stakeholders; ii) methodological approaches; iii) applications; iv) development platform and v) logical and physical infrastructure. In particular, it presents the Living Usability Lab methodology, which aims the active involvement of potential end users and other stakeholders in all phases of the AAL systems and services development in order to optimize them in terms of usability, effectiveness and acceptance. Keywords: Usability, Ambient Assisted Living, Living Lab Methodology.O artigo tem como objetivo sistematizar o trabalho associado à consolidação do Living Usability Lab (LUL), um Living Lab vocacionado para o desenvolvimento de sistemas e serviços Ambient Assisted Living (AAL). O artigo enquadra as motivações subjacentes ao desenvolvimento do LUL, elenca os seus objetivos e apresenta a abordagem metodológica desenvolvida, que pretende potenciar o envolvimento ativo dos potenciais utilizadores finais e outras partes interessadas em todas as fases do desenvolvimento de sistemas e serviços AAL

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

Observation of associated near-side and away-side long-range correlations in √sNN=5.02 TeV proton-lead collisions with the ATLAS detector

Two-particle correlations in relative azimuthal angle (Δϕ) and pseudorapidity (Δη) are measured in √sNN=5.02  TeV p+Pb collisions using the ATLAS detector at the LHC. The measurements are performed using approximately 1  μb-1 of data as a function of transverse momentum (pT) and the transverse energy (ΣETPb) summed over 3.1<η<4.9 in the direction of the Pb beam. The correlation function, constructed from charged particles, exhibits a long-range (2<|Δη|<5) “near-side” (Δϕ∼0) correlation that grows rapidly with increasing ΣETPb. A long-range “away-side” (Δϕ∼π) correlation, obtained by subtracting the expected contributions from recoiling dijets and other sources estimated using events with small ΣETPb, is found to match the near-side correlation in magnitude, shape (in Δη and Δϕ) and ΣETPb dependence. The resultant Δϕ correlation is approximately symmetric about π/2, and is consistent with a dominant cos⁡2Δϕ modulation for all ΣETPb ranges and particle pT

Hunt for new phenomena using large jet multiplicities and missing transverse momentum with ATLAS in 4.7 fb−1 of s√=7TeV proton-proton collisions

Results are presented of a search for new particles decaying to large numbers of jets in association with missing transverse momentum, using 4.7 fb−1 of pp collision data at s√=7TeV collected by the ATLAS experiment at the Large Hadron Collider in 2011. The event selection requires missing transverse momentum, no isolated electrons or muons, and from ≥6 to ≥9 jets. No evidence is found for physics beyond the Standard Model. The results are interpreted in the context of a MSUGRA/CMSSM supersymmetric model, where, for large universal scalar mass m 0, gluino masses smaller than 840 GeV are excluded at the 95% confidence level, extending previously published limits. Within a simplified model containing only a gluino octet and a neutralino, gluino masses smaller than 870 GeV are similarly excluded for neutralino masses below 100 GeV

Search for direct production of charginos and neutralinos in events with three leptons and missing transverse momentum in √s = 7 TeV pp collisions with the ATLAS detector

A search for the direct production of charginos and neutralinos in final states with three electrons or muons and missing transverse momentum is presented. The analysis is based on 4.7 fb−1 of proton–proton collision data delivered by the Large Hadron Collider and recorded with the ATLAS detector. Observations are consistent with Standard Model expectations in three signal regions that are either depleted or enriched in Z-boson decays. Upper limits at 95% confidence level are set in R-parity conserving phenomenological minimal supersymmetric models and in simplified models, significantly extending previous results

Single hadron response measurement and calorimeter jet energy scale uncertainty with the ATLAS detector at the LHC

The uncertainty on the calorimeter energy response to jets of particles is derived for the ATLAS experiment at the Large Hadron Collider (LHC). First, the calorimeter response to single isolated charged hadrons is measured and compared to the Monte Carlo simulation using proton-proton collisions at centre-of-mass energies of sqrt(s) = 900 GeV and 7 TeV collected during 2009 and 2010. Then, using the decay of K_s and Lambda particles, the calorimeter response to specific types of particles (positively and negatively charged pions, protons, and anti-protons) is measured and compared to the Monte Carlo predictions. Finally, the jet energy scale uncertainty is determined by propagating the response uncertainty for single charged and neutral particles to jets. The response uncertainty is 2-5% for central isolated hadrons and 1-3% for the final calorimeter jet energy scale.Comment: 24 pages plus author list (36 pages total), 23 figures, 1 table, submitted to European Physical Journal