62 research outputs found

    REPRESENTING WITH LIGHT. VIDEO PROJECTION MAPPING FOR CULTURAL HERITAGE

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    In this paper, we describe a cross-disciplinary process that uses photogrammetric surveys as a precise basis for video projection mapping techniques. Beginning with a solid basis that uses geoinformatics technologies, such as laser scanning and photogrammetric survey, the method sets, as a first step, the physical and geometrical acquisition of the object. Precision and accuracy are the basics that allow the analysis of the artwork, both at a small or large scale, to evaluate details and correspondences. Testing contents at different scales of the object, using 3D printed replicas or real architectures is the second step of the investigation.The core of the process is the use of equations of collinearity into an interactive system such as Max 7, a visual programming language for music and multimedia, in order to facilitate operators to have a fast image correction, directly inside the interactive software. Interactivity gives also the opportunity to easily configure a set of actions to let the spectators to directly change and control the animation content. The paper goes through the different phases of the research, analysing the results and the progress through a series of events on real architecture and experiments on 3d printed models to test the level of involvement of the audience and the flexibility of the system in terms of content.The idea of using the collinearity equation inside da software Max 7 was developed for the M.Arch final Thesis by Massimo VisonĂ  and Tommaso Pasini of the University of Venice (IUAV) in collaboration with the Digital Exhibit Postgraduate Master Course (MDE Iuav)

    Consensus statement on placebo effects in sports and exercise: the need for conceptual clarity, methodological rigour, and the elucidation of neurobiological mechanisms.

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    In June 2017 a group of experts in anthropology, biology, kinesiology, neuroscience, physiology, and psychology convened in Canterbury, UK, to address questions relating to the placebo effect in sport and exercise. The event was supported exclusively by Quality Related (QR) funding from the Higher Education Funding Council for England (HEFCE). The funder did not influence the content or conclusions of the group. No competing interests were declared by any delegate. During the meeting and in follow-up correspondence, all delegates agreed the need to communicate the outcomes of the meeting via a brief consensus statement. The two specific aims of this statement are to encourage researchers in sport and exercise science to: 1. Where possible, adopt research methods that more effectively elucidate the role of the brain in mediating the effects of treatments and interventions. 2. Where possible, adopt methods that factor for and/or quantify placebo effects that could explain a percentage of inter-individual variability in response to treatments and interventio

    Role of MDCT coronary angiography in the clinical setting: economic implications

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    PURPOSE:This study evaluated the incremental value and cost-effectiveness ratio of introducing coronary angiography (CA) with multidetector computed tomography (MDCT-CA) in the diagnostic management of patients with suspected coronary artery disease (CAD) compared with the traditional diagnostic workup.MATERIAL AND METHODS:Five hundred and fifty consecutive patients who underwent MDCT-CA between January 2009 and June 2011 were considered. Patients with atypical chest pain and suspected obstructive CAD were directed to one of two diagnostic pathways: the traditional protocol (examination, stress test, CA) and the current protocol (examination, stress test, MDCT-CA, and CA, if necessary). The costs of each protocol and for the individual method were calculated. Based on the results, the cost-effectiveness ratio of the two diagnostic pathways was compared. A third, modified, diagnostic pathway has been proposed with its relative cost-effectiveness ratio (examination, MDCT-CA, stress test, and CA, if necessary).RESULTS:Stress test vs. MDCT-CA had an accuracy of 66%, a sensitivity and specificity of 21% and 87%, respectively, and a positive (PPV) and negative (NPV) predictive value of 40% and 70%, respectively. Comparison between conventional CA (CCA) and MDCT-CA showed a sensitivity and specificity of 92% and 89%, respectively, a PPV and NPV of 89%, and an accuracy of 92%. The traditional protocol has higher costs than the second protocol: 1,645 euro against 322 euro (mean), but it shows a better cost-effectiveness ratio. The new proposed protocol has lower costs, mean 261 euro, with a better costeffectiveness ratio than the traditional protocol.CONCLUSIONS:The diagnostic protocol for patients with suspected CAD has been modified by the introduction of MDCT-CA. Our study confirms the greater diagnostic performance of MDCT-CA compared with stress test and its similar accuracy to CCA. The use of MDCT-CA to select patients for CCA has a favourable cost-effectiveness profile

    Consensus statement on placebo effects in sports and exercise: The need for conceptual clarity, methodological rigour, and the elucidation of neurobiological mechanisms

    Get PDF
    In June 2017 a group of experts in anthropology, biology, kinesiology, neuroscience, physiology, and psychology convened in Canterbury, UK, to address questions relating to the placebo effect in sport and exercise. The event was supported exclusively by Quality Related (QR) funding from the Higher Education Funding Council for England (HEFCE). The funder did not influence the content or conclusions of the group. No competing interests were declared by any delegate. During the meeting and in follow-up correspondence, all delegates agreed the need to communicate the outcomes of the meeting via a brief consensus statement. The two specific aims of this statement are to encourage researchers in sport and exercise science to 1. Where possible, adopt research methods that more effectively elucidate the role of the brain in mediating the effects of treatments and interventions. 2. Where possible, adopt methods that factor for and/or quantify placebo effects that could explain a percentage of inter-individual variability in response to treatments and intervention

    O alcoolismo, suas causas e tratemento nas representacoes sociais de profissionais de Saude da Familia = Alcoholism, its causes and treatment in the social representations constructed by Brazilian Family Health professionals

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    Health sciences define alcoholism as a multifaceted syndrome. Guidelines for treatment include adoption of the harm reduction paradigm and the essential role of Primary Health Care (PHC) towards the wide range of alcohol problems. This research aimed at understanding the social representations of alcoholism constructed by Brazilian PHC professionals, working at Family Health Centers (FHC). We conducted semi-structured interviews with 40 graduated health professionals who worked in 11 different FHC located in a municipality in southeast Brazil. Data were treated with thematic content analysis. We highlight the following results: professionals objectified the alcoholic as a patient who did not search for treatment and/or who threatened the normal functioning of the FHC; professionals considered social and psychological factors as the main causes of alcoholism; they did not mention the concept of harm reduction, nor well-defined treatment protocols. The causal attribution and the representational field inherent to the social representations contributed to anchor alcoholism as a "plague" of poverty. The FHC were perceived simultaneously as important and impotent towards alcoholism. We conclude that the implementation of alcohol-related care strategies must consider the intergroup relations between professionals and patients

    Role of coronary angiography MDCT in the clinical setting: changes of diagnostic workup and economic implications

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    Purpose: To assess the incremental value of MDCT- coronary angiography (MDCT-CA) in the diagnostic workup and cost management of patients with suspected coronary artery disease (CAD). Methods and Materials: 550 consecutive patients underwent MDCT-CA between 04/2008 and 07/2010. For each patient pre-test probability of CAD using Morise score was related to exercise test, MDCT-CA and CA. We calculated thereafter the incremental diagnostic value of stress test to MDCT-CA for each category of cardiovascular risk. The traditional diagnostic workup (without MDCT-CA) to the modified workup (with MDCT-CA) in terms of pre-test CAD probability\effectiveness and cost\effectiveness were compared. Results: The diagnostic performance of stress test had a sensitivity and specificity of 46.2% and 73.4% with PPV and NPV of 48 % and 72 %. MDCT-CA demonstrated a sensitivity of 100 %, a specificity of 94.7%, PPV of 96.7% and NPV of 100 %. According to Morise Score, in low pre-test probability, stress test accuracy resulted 30 %, in moderate pre-test 38 %, in high pre-test 45 % considering MDCT-CA as reference. The MDCT-CA modified diagnostic protocol offers an average increased diagnostic performance of 60 % compared with the traditional protocol, and an average cost saving of \u20ac 1323 per patient. Conclusions: MDCT-CA is the reference method for the non-invasive exclusion of critical coronary stenosis. Up to a low-medium CAD risk, the MDCT-CA diagnostic workup is the most cost-effective protocol, being superior to the traditional exercise ECG-based protocol
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