784 research outputs found

    Library not found: The disconnect between gaming research and development

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    Video games clearly have great educational potential, both for formal and informal learning, and this avenue is being thoroughly investigated in the psychology and education literature. However, there appears to be a disconnect between social science academic research and the game development sector, in that research and development practices rarely inform each other. This paper presents a two-part analysis of this communicative disconnect based on investigations carried out within the H2020 Gaming Horizons project. The first part regards a literature review that identified the main topics of focus in the social sciences literature on games, as well as the chief recommendations authors express. The second part examines 73 interviews with 30 developers, 14 researchers, 13 players, 12 educators, and 4 policy makers, investigating how they perceived games and gaming. The study highlights several factors contributing to the disconnect: different priorities and dissemination practices; the lag between innovation in the games market and research advancements; low accessibility of academic research; and disproportionate academic focus on serious games compared to entertainment games. The authors suggest closer contact between researchers and developers might be sought by diversifying academic dissemination channels, promoting conferences involving both groups, and developing research partnerships with entertainment game companies

    Educational games as a motivational tool: Considerations on their potential and limitations

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    There is considerable interest in leveraging video games to support students’ motivation. This involves employment of educational (serious) and entertainment games. However, while evidence indicates that games can enhance learning outcomes, doubts persist about whether they retain their enjoyable character in formal learning contexts. This study was carried out within the H2020 Gaming Horizons project, which involved a review of academic literature on the role of games in society, as well as 73 semi-structured interviews with relevant stakeholders, including players and educators, investigating their positions on game-related issues. The interviews suggested that players tend to view game-based learning – and specifically serious games at school – with scepticism. This is partly attributable to the perception that serious games have lower production values than entertainment games, and that gaming, as a voluntary, self-driven activity, clashes with the structured nature of school. Some educators reported individual and gender differences in the motivating power of games. However, the use of entertainment games to foster learning outcomes was seen favourably. Two focus groups devoted to the issue highlighted the need for carefully tailoring the gaming experience to both context and student, and the importance of developing a sustainable business model for enhancing serious games quality

    Sustained very low disease activity and remission in psoriatic arthritis patients

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    Introduction: Sustained remission should be considered the main therapeutic target in psoriatic arthritis (PsA). Very low disease activity (VLDA) and a DAPSA score ≤ 4 are the most commonly used criteria. The aim of the present study was to evaluate the rate of sustained remission in a group of PsA patients followed in a real-life setting. Methods: All PsA patients satisfying CASPAR criteria were followed prospectively every 3–6 months, in a context of clinical practice by January 2013. Sustained remission was defined when patients achieved a DAPSA score ≤ 4 and/or VLDA for at least 12 months. The exclusion criterion was the presence of a condition of VLDA or DAPSA ≤ 4 at the baseline assessment. Kaplan–Meier survival curve was used to evaluate the survival of patients. Results: A total of 147 PsA patients were evaluated for the study. Of these, 80 performed at least 12 consecutive months of follow-up. The average duration of follow-up was 24 months (range, 12–60 months). At the last follow-up, 22 patients were on csDMARDs treatment while 58 patients were on bDMARDs. Of the 80 patients, 14 (17.5%) achieved a sustained VLDA while 24 (30%) achieved sustained remission according to the DAPSA criteria. The mean duration of remission in patients achieving VLDA and DAPSA ≤ 4 was 17 months for both criteria. High baseline levels of CRP, shorter disease duration, and less pain at baseline were found to be predictors of sustained VLDA and DAPSA remission. Conclusions: In our study, based on clinical practice, a sustained VLDA was achieved in 17.5% and a sustained remission according to the DAPSA criteria in 30% of patients with PsA.ith PsA

    Performance of the CMS Cathode Strip Chambers with Cosmic Rays

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    The Cathode Strip Chambers (CSCs) constitute the primary muon tracking device in the CMS endcaps. Their performance has been evaluated using data taken during a cosmic ray run in fall 2008. Measured noise levels are low, with the number of noisy channels well below 1%. Coordinate resolution was measured for all types of chambers, and fall in the range 47 microns to 243 microns. The efficiencies for local charged track triggers, for hit and for segments reconstruction were measured, and are above 99%. The timing resolution per layer is approximately 5 ns

    Performance of CMS muon reconstruction in pp collision events at sqrt(s) = 7 TeV

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    The performance of muon reconstruction, identification, and triggering in CMS has been studied using 40 inverse picobarns of data collected in pp collisions at sqrt(s) = 7 TeV at the LHC in 2010. A few benchmark sets of selection criteria covering a wide range of physics analysis needs have been examined. For all considered selections, the efficiency to reconstruct and identify a muon with a transverse momentum pT larger than a few GeV is above 95% over the whole region of pseudorapidity covered by the CMS muon system, abs(eta) < 2.4, while the probability to misidentify a hadron as a muon is well below 1%. The efficiency to trigger on single muons with pT above a few GeV is higher than 90% over the full eta range, and typically substantially better. The overall momentum scale is measured to a precision of 0.2% with muons from Z decays. The transverse momentum resolution varies from 1% to 6% depending on pseudorapidity for muons with pT below 100 GeV and, using cosmic rays, it is shown to be better than 10% in the central region up to pT = 1 TeV. Observed distributions of all quantities are well reproduced by the Monte Carlo simulation.Comment: Replaced with published version. Added journal reference and DO

    Performance of CMS muon reconstruction in pp collision events at sqrt(s) = 7 TeV

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    The performance of muon reconstruction, identification, and triggering in CMS has been studied using 40 inverse picobarns of data collected in pp collisions at sqrt(s) = 7 TeV at the LHC in 2010. A few benchmark sets of selection criteria covering a wide range of physics analysis needs have been examined. For all considered selections, the efficiency to reconstruct and identify a muon with a transverse momentum pT larger than a few GeV is above 95% over the whole region of pseudorapidity covered by the CMS muon system, abs(eta) < 2.4, while the probability to misidentify a hadron as a muon is well below 1%. The efficiency to trigger on single muons with pT above a few GeV is higher than 90% over the full eta range, and typically substantially better. The overall momentum scale is measured to a precision of 0.2% with muons from Z decays. The transverse momentum resolution varies from 1% to 6% depending on pseudorapidity for muons with pT below 100 GeV and, using cosmic rays, it is shown to be better than 10% in the central region up to pT = 1 TeV. Observed distributions of all quantities are well reproduced by the Monte Carlo simulation.Comment: Replaced with published version. Added journal reference and DO

    Measurement of the Bottom-Strange Meson Mixing Phase in the Full CDF Data Set

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    We report a measurement of the bottom-strange meson mixing phase \beta_s using the time evolution of B0_s -> J/\psi (->\mu+\mu-) \phi (-> K+ K-) decays in which the quark-flavor content of the bottom-strange meson is identified at production. This measurement uses the full data set of proton-antiproton collisions at sqrt(s)= 1.96 TeV collected by the Collider Detector experiment at the Fermilab Tevatron, corresponding to 9.6 fb-1 of integrated luminosity. We report confidence regions in the two-dimensional space of \beta_s and the B0_s decay-width difference \Delta\Gamma_s, and measure \beta_s in [-\pi/2, -1.51] U [-0.06, 0.30] U [1.26, \pi/2] at the 68% confidence level, in agreement with the standard model expectation. Assuming the standard model value of \beta_s, we also determine \Delta\Gamma_s = 0.068 +- 0.026 (stat) +- 0.009 (syst) ps-1 and the mean B0_s lifetime, \tau_s = 1.528 +- 0.019 (stat) +- 0.009 (syst) ps, which are consistent and competitive with determinations by other experiments.Comment: 8 pages, 2 figures, Phys. Rev. Lett 109, 171802 (2012

    Altered processing of sensory stimuli in patients with migraine

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    Migraine is a cyclic disorder, in which functional and morphological brain changes fluctuate over time, culminating periodically in an attack. In the migrainous brain, temporal processing of external stimuli and sequential recruitment of neuronal networks are often dysfunctional. These changes reflect complex CNS dysfunction patterns. Assessment of multimodal evoked potentials and nociceptive reflex responses can reveal altered patterns of the brain's electrophysiological activity, thereby aiding our understanding of the pathophysiology of migraine. In this Review, we summarize the most important findings on temporal processing of evoked and reflex responses in migraine. Considering these data, we propose that thalamocortical dysrhythmia may be responsible for the altered synchronicity in migraine. To test this hypothesis in future research, electrophysiological recordings should be combined with neuroimaging studies so that the temporal patterns of sensory processing in patients with migraine can be correlated with the accompanying anatomical and functional changes

    Search for new physics in the multijet and missing transverse momentum final state in proton-proton collisions at √s=8 Tev

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    Measurement of Higgs boson production and properties in the WW decay channel with leptonic final states

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