329 research outputs found

    E-Portfolios and assessment: a case study for civil engineering

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    The University of Porto implemented a project for the use of e-portfolios in its academic community. The main idea of this project was to use the e-portfolio as an assessment tool of the student learning journey and also to show the importance of this reflective work for their academic and professional life.One of the examples that decided to use this methodology was the discipline of Construction Management, from the Faculty of Engineering. The students were in their fifth year of the master in Civil Engineering. The testing was done in 2006 and 2007. The conditions that led to this option were the experience obtained in the use of an e-learning platform for five years (WebCT), the fact that the contents of the classes have a close connection with the professional activities and the symbiosis between the educational, professional and curriculum components of the exercise. The assessment was graded based on the result of elaboration of the e-portfolio dedicated to present what the students had learned in the course: There was no imposed structure but a core index was suggested. The development of the e-portfolios was made by the students with the technical support of the Office of Support for New Technologies in Education of University of Porto (GATIUP).The learning objectives presented at the beginning of the course were also analyzed by each student in the e-portfolio at the end of the learning. The results were important to assess the learning objectives and to adapt some of the teaching arrangements to accommodate the criticisms and behaviors presented by the students. For the teacher the main result of these experiences was that digital portfolios are an excellent way to assess knowledge, competences and skills acquired by the students. A parallel benefit was the improvement on using web pages as communication tools

    Modelo de formação na área de reabilitação do projecto H-KNOW

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    O projecto H-KNOW com o título Infraestrutura Avançada para Serviços Baseados no Conhecimento na Reabilitação de Edifícios. Insere-se no 7º PQ, sub-programa Projecto de Colaboração Destinado a Pequenas e Médias Empresas (PMEs). Tem um financiamento total da Comissão Europeia de cerca de 1,9 M€ e um custo de cerca de 2,6 M€. Tem quinze parceiros de cinco países. O projecto resulta da existência de um número crescente de obras complexas de reabilitação de edifícios que exigem o acesso rápido e sistemático ao conhecimento específico deste tipo de obras. Uma abordagem promissora para facilitar tal acesso passa por providenciar às PMEs da construção e reabilitação o conhecimento através da colaboração em redes empresariais constituídas por essas empresas e por parceiros dedicados à investigação e ao desenvolvimento (ID). Uma das consequências deste projecto é a criação de um modelo para formação e treino utilizando meios digitais. O que se apresenta é um modelo com várias facetas e que pretende abranger a diversidade de necessidades e literacia no sector da reabilitação.H-KNOW project means "Advanced Infrastructure for Knowledge Based Services for Restoring Buildings". It is part of FP7, sub-program Project Collaboration Aimed at Small and Medium Enterprises (SMEs). It has a total funding of the European Commission about 1.9 M € and a cost of about 2.6 M €. Has fifteen partners from five countries. The project is the existence of a growing number of complex works of rehabilitation of buildings that require quick and systematic knowledge of this specific type of work. A promising approach to facilitate such access is by providing SMEs of the construction and rehabilitation knowledge through collaborative business networks formed by these companies and partners to research and development (ID). One consequence of this project is to create a model for training and training using digital media. What emerges is a model with multiple facets and is meant to cover the diversity of needs and literacy in the field of rehabilitation

    Educational Media in Portugal: The next decade (2011-2020)

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    A discussion on the future developments on educational media in the context of higher education in Portugal will be the focus of this panel. This panel will represent different lines of research and development as well as a variety of experiences on implementing innovation in higher education. The panelists will share their expectations and visions for a next decade of development and innovation in the area of educational media in Portugal.info:eu-repo/semantics/publishedVersio

    Inquérito sorológico sôbre leptospiroses realizado no Vale do Cariri, Estado do Ceará, pela III Bandeira Científica do Centro Acadêmico Oswaldo Cruz da Faculdade de Medicina da Universidade de São Paulo

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    Agglutination-tests for leptospirosis were performed in 376 sera. The following sero-types of Leptospira were used: L. icterohemorrhagiae, L. canicola, L. grippo-typhosa, L. pomona, L. bataviae, L. australis B, L. sejroe, L. pyrogenes and L. suis. Six sera (1.59%) were positive for L. icterohemorrhagiae. From the whole group two people were born in this region, what makes possible the conclusion that the disease exists in the region.Com o propósito de estudar o problema das leptospiroses no Vale do Cariri, Ceará, foram examinados 376 soros colhidos entre moradores da região. Foram feitas provas de sôro-aglutinação usando-se os seguintes sôro-tipos de Leptospira: L. icterohemorrhagiae, L. canícola, L. grippo-typhosa, L. pomona, L. bataviae, L. australis B, L. sejroe, L. pyrogenes e L. suis. Seis soros reagiram positivamente frente à L. icterohemorrhagiae, o que dá percentual de 1,59%. Dois dos indivíduos haviam nascido e vivido no Vale, donde foi possível concluir que a leptospirose existe, autóctone, na região

    Development of the CMS detector for the CERN LHC Run 3

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    International audienceSince the initial data taking of the CERN LHC, the CMS experiment has undergone substantial upgrades and improvements. This paper discusses the CMS detector as it is configured for the third data-taking period of the CERN LHC, Run 3, which started in 2022. The entire silicon pixel tracking detector was replaced. A new powering system for the superconducting solenoid was installed. The electronics of the hadron calorimeter was upgraded. All the muon electronic systems were upgraded, and new muon detector stations were added, including a gas electron multiplier detector. The precision proton spectrometer was upgraded. The dedicated luminosity detectors and the beam loss monitor were refurbished. Substantial improvements to the trigger, data acquisition, software, and computing systems were also implemented, including a new hybrid CPU/GPU farm for the high-level trigger

    Measurement of the τ\tau lepton polarization in Z boson decays in proton-proton collisions at s\sqrt{s} = 13 TeV

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    International audienceThe polarization of τ\tau leptons is measured using leptonic and hadronic τ\tau lepton decays in Z τ+τ\to\tau^+\tau^- events in proton-proton collisions at s\sqrt{s} = 13 TeV recorded by CMS at the CERN LHC with an integrated luminosity of 36.3 fb1^{-1}. The measured τ\tau^- polarization at the Z boson mass pole is Pτ\mathcal{P}_{\tau}(Z) = -0.144±\pm0.006 (stat) ±\pm 0.014 (syst) = -0.144±\pm0.015, in good agreement with the measurement of the τ\tau lepton asymmetry parameter of AτA_{\tau} = 0.1439±\pm0.0043 = Pτ-\mathcal{P}_{\tau}(Z) at LEP. The τ\tau polarization depends on the ratio of the vector to axial-vector couplings of the τ\tau leptons in the neutral current expression, and thus on the effective weak mixing angle sin2θWeff\sin^{2}\theta_\mathrm{W}^{\text{eff}}, independently of the Z boson production mechanism. The obtained value sin2θWeff\sin^{2}\theta_\mathrm{W}^{\text{eff}} = 0.2319±\pm0.0008 (stat) ±\pm 0.0018 (syst) = 0.2319±\pm0.0019 is in good agreement with measurements at e+^+e^- colliders

    Search for stealth supersymmetry in final states with two photons, jets, and low missing transverse momentum in proton-proton collisions at s\sqrt{s} = 13 TeV

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    International audienceThe results of a search for stealth supersymmetry in final states with two photons and jets, targeting a phase space region with low missing transverse momentum (pTmissp_\text{T}^\text{miss}), are reported. The study is based on a sample of proton-proton collisions at s\sqrt{s} =13 TeV collected by the CMS experiment, corresponding to an integrated luminosity of 138 fb1^{-1}. As LHC results continue to constrain the parameter space of the minimal supersymmetric standard model, the low pTmissp_\text{T}^\text{miss} regime is increasingly valuable to explore. To estimate the backgrounds due to standard model processes in such events, we apply corrections derived from simulation to an estimate based on a control selection in data. The results are interpreted in the context of simplified stealth supersymmetry models with gluino and squark pair production. The observed data are consistent with the standard model predictions, and gluino (squark) masses of up to 2150 (1850) GeV are excluded at the 95% confidence level

    Search for long-lived particles decaying in the CMS muon detectors in proton-proton collisions at s\sqrt{s} = 13 TeV

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    International audienceA search for long-lived particles (LLPs) decaying in the CMS muon detectors is presented. A data sample of proton-proton collisions at s\sqrt{s} = 13 TeV corresponding to an integrated luminosity of 138 fb1^{-1} recorded at the LHC in 2016-2018, is used. The decays of LLPs are reconstructed as high multiplicity clusters of hits in the muon detectors. In the context of twin Higgs models, the search is sensitive to LLP masses from 0.4 to 55 GeV and a broad range of LLP decay modes, including decays to hadrons, τ\tau leptons, electrons, or photons. No excess of events above the standard model background is observed. The most stringent limits to date from LHC data are set on the branching fraction of the Higgs boson decay to a pair of LLPs with masses below 10 GeV. This search also provides the best limits for various intervals of LLP proper decay length and mass. Finally, this search sets the first limits at the LHC on a dark quantum chromodynamic sector whose particles couple to the Higgs boson through gluon, Higgs boson, photon, vector, and dark-photon portals, and is sensitive to branching fractions of the Higgs boson to dark quarks as low as 2×\times103^{-3}

    Search for flavor changing neutral current interactions of the top quark in final states with a photon and additional jets in proton-proton collisions at s\sqrt{s} = 13 TeV

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    International audienceA search for the production of a top quark in association with a photon and additional jets via flavor changing neutral current interactions is presented. The analysis uses proton-proton collision data recorded by the CMS detector at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 138 fb1^{-1}. The search is performed by looking for processes where a single top quark is produced in association with a photon, or a pair of top quarks where one of the top quarks decays into a photon and an up or charm quark. Events with an electron or a muon, a photon, one or more jets, and missing transverse momentum are selected. Multivariate analysis techniques are used to discriminate signal and standard model background processes. No significant deviation is observed over the predicted background. Observed (expected) upper limits are set on the branching fractions of top quark decays: B\mathcal{B}(t\touγ\gamma) <\lt 0.95×\times105^{-5} (1.20×\times105^{-5}) and B\mathcal{B}(t\tocγ\gamma) <\lt 1.51×\times105^{-5} (1.54×\times105^{-5}) at 95% confidence level, assuming a single nonzero coupling at a time. The obtained limit for B\mathcal{B}(t\touγ\gamma) is similar to the current best limit, while the limit for B\mathcal{B}(t\tocγ\gamma) is significantly tighter than previous results
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