1,489 research outputs found

    Auneau – Le Parc du Château

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    Date de l'opération : 1989 - 1991 (FP) Inventeur(s) : Dubois Jean-Pierre Depuis 1979, les fouilles se poursuivent sur le site néolithique du « Parc du Château » à Auneau, qui a livré des témoins d'activités domestiques, artisanales et funéraires (Gallia Informations, 1991-2 : 145-146). Les campagnes de 1989-1991 ont concerné l'extension du site, la chronologie des occupations humaines, les problèmes funéraires, le mobilier archéologique et la mise en évidence de foyers en place sous les nivea..

    Validation of an ambient system for the measurement of gait parameters

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    Fall risk in elderly people is usually assessed using clinical tests. These tests consist in a subjective evaluation of gait performed by healthcare professionals, most of the time shortly after the first fall occurrence. We propose to complement this one-time, subjective evaluation, by a more quantitative analysis of the gait pattern using a Microsoft Kinect. To evaluate the potential of the Kinect sensor for such a quantitative gait analysis, we benchmarked its performance against that of a gold-standard motion capture system, namely the OptiTrack. The “Kinect” analysis relied on a home-made algorithm specifically developed for this sensor, whereas the OptiTrack analysis relied on the “built-in” OptiTrack algorithm. We measured different gait parameters as step length, step duration, cadence, and gait speed in twenty-five subjects, and compared the results respectively provided by the Kinect and OptiTrack systems. These comparisons were performed using Bland-Altman plot (95% bias and limits of agreement), percentage error, Spearman’s correlation coefficient, concordance correlation coefficient and intra-class correlation. The agreement between the measurements made with the two motion capture systems was very high, demonstrating that associated with the right algorithm, the Kinect is a very reliable and valuable tool to analyze gait. Importantly, the measured spatio-temporal parameters varied significantly between age groups, step length and gait speed proving the most effective discriminating parameters. Kinect-monitoring and quantitative gait pattern analysis could therefore be routinely used to complete subjective clinical evaluation in order to improve fall risk assessment during rehabilitation

    Productivity and Mobility in Academic Research: Evidence from Mathematicians

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    Using an exhaustive database on academic publications in mathematics, we study the patterns of productivity by world mathematicians over the period 1984-2006. We uncover some surprising facts, such as the absence of age related decline in productivity and the relative symmetry of international movements, rejecting the presumption of a massive ”brain drain” towards the U.S. Looking at the U.S. academic market in mathematics, we analyze the determinants of success by top departments. In conformity with recent studies in other fields, we find that selection effects are much stronger than local interaction effects: the best departments are most successful in hiring the most promising mathematicians, but not necessarily at stimulating positive externalities among them. Finally we analyze the impact of career choices by mathematicians: mobility almost always pays, but early specialization does not

    Productivity and Mobility in Academic Research: Evidence from Mathematicians

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    Using an exhaustive database on academic publications in mathematics, we study the patterns of productivity by world mathematicians over the period 1984-2006. We uncover some surprising facts, such as the absence of age related decline in productivity and the relative symmetry of international movements, rejecting the presumption of a massive ”brain drain” towards the U.S. Looking at the U.S. academic market in mathematics, we analyze the determinants of success by top departments. In conformity with recent studies in other fields, we find that selection effects are much stronger than local interaction effects: the best departments are most successful in hiring the most promising mathematicians, but not necessarily at stimulating positive externalities among them. Finally we analyze the impact of career choices by mathematicians: mobility almost always pays, but early specialization does not

    What Does It Take to Become a Good Mathematician?

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    Using an exhaustive database on academic publications in mathematics, we study the patterns of productivity by world mathematicians over the period 1984-2006. We uncover some surprising facts, such as the absence of age related decline in productivity and the relative symmetry of international movements, rejecting the presumption of a massive ”brain drain” towards the U.S. Looking at the U.S. academic market in mathematics, we analyze the determinants of success by top departments. In conformity with recent studies in other fields, we find that selection effects are much stronger than local interaction effects: the best departments are most successful in hiring the most promising mathematicians, but not necessarily at stimulating positive externalities among them. Finally we analyze the impact of career choices by mathematicians: mobility almost always pays, but early specialization does not

    What Does It Take to Become a Good Mathematician?

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    Using an exhaustive database on academic publications in mathematics, we study the patterns of productivity by world mathematicians over the period 1984-2006. We uncover some surprising facts, such as the absence of age related decline in productivity and the relative symmetry of international movements, rejecting the presumption of a massive ”brain drain” towards the U.S. Looking at the U.S. academic market in mathematics, we analyze the determinants of success by top departments. In conformity with recent studies in other fields, we find that selection effects are much stronger than local interaction effects: the best departments are most successful in hiring the most promising mathematicians, but not necessarily at stimulating positive externalities among them. Finally we analyze the impact of career choices by mathematicians: mobility almost always pays, but early specialization does not

    Automating the timed up and go test using a depth camera

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    Fall prevention is a human, economic and social issue. The Timed Up and Go (TUG) test is widely used to identify individuals with a high fall risk. However, this test has been criticized because its “diagnostic” is too dependent on the conditions in which it is performed and on the healthcare professionals running it. We used the Microsoft Kinect ambient sensor to automate this test in order to reduce the subjectivity of outcome measures and to provide additional information about patient performance. Each phase of the TUG test was automatically identified from the depth images of the Kinect. Our algorithms accurately measured and assessed the elements usually measured by healthcare professionals. Specifically, average TUG test durations provided by our system differed by only 0.001 s from those measured by clinicians. In addition, our system automatically extracted several additional parameters that allowed us to accurately discriminate low and high fall risk individuals. These additional parameters notably related to the gait and turn pattern, the sitting position and the duration of each phase. Coupling our algorithms to the Kinect ambient sensor can therefore reliably be used to automate the TUG test and perform a more objective, robust and detailed assessment of fall risk

    Auneau - Le Parc du Château

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    Le programme 1995-1997 a été extrêmement positif pour la recherche grâce à un travail de terrain équivalent à près de 6 mois avec une trentaine de personnes. Ceci a permis de diversifier les approches et les secteurs d'étude. Depuis les premières campagnes de fouilles, la complexité du site du « Parc du Château » s’accentue d’année en année. Cependant, les données s'organisent peu à peu et les éléments apparemment disparates fournis par les premières datations ont été corroborés par les trava..

    Evaluation du projet "Nuit blanche ?" à Genève 2006-2007 : l'avis des partenaires

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    Ce [deuxième] rapport se décompose en quatre chapitres : le premier présente l'évolution de la situation, d'une part sur le plan épidémiologique de la consommation de psychotropes, et d'autre part du point de vue du projet "Nuit blanche ?". Ce chapitre résume aussi le mandat d'évaluation. Les deux chapitres suivants répondent aux questions d'évaluation : le chapitre 2 est consacré aux partenaires de "Nuit blanche ?" et à l'appréciation qu'ils font du projet et le chapitre 3 analyse le profil de la population touchée par les interventions de "Nuit blanche ?" en 2006-2007. Finalement, le quatrième chapitre présente une synthèse des réponses aux questions d'évaluation et propose quelques pistes pour la suite du projet aux travers de quelques recommandations. [Extrait du résumé]]]> Designer Drugs ; Substance-Related Disorders ; Program Evaluation ; Switzerland fre https://serval.unil.ch/resource/serval:BIB_FACAFBBD2F04.P001/REF.pdf http://nbn-resolving.org/urn/resolver.pl?urn=urn:nbn:ch:serval-BIB_FACAFBBD2F045 info:eu-repo/semantics/altIdentifier/urn/urn:nbn:ch:serval-BIB_FACAFBBD2F045 info:eu-repo/semantics/submittedVersion info:eu-repo/semantics/openAccess Copying allowed only for non-profit organizations https://serval.unil.ch/disclaimer application/pdf oai:serval.unil.ch:BIB_FABED6FB1BCA 2022-05-07T01:30:34Z <oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"> https://serval.unil.ch/notice/serval:BIB_FABED6FB1BCA Die griechischen Inschriften Wachter, R. info:eu-repo/semantics/bookPart incollection 2005 Das Eschmun-Heiligtum von Sidon. Architektur und Inschriften, pp. 319-331 Stucky, R.A. (ed.) oai:serval.unil.ch:BIB_FABEEB4439BC 2022-05-07T01:30:34Z <oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"> https://serval.unil.ch/notice/serval:BIB_FABEEB4439BC Agents de migration : les intermédiaires sur le marché suisse des footballeurs et danseuses de cabaret http://www.statec.public.lu/fr/biblio/periodiques/periodiques_all/r/revue_economique_sociale/2009/ Poli, R. Thiévent, R. info:eu-repo/semantics/article article 2009 Revue économique et sociale (Lausanne), vol. 67, no. 2, pp. 107-112 info:eu-repo/semantics/altIdentifier/pissn/0035-2772 <![CDATA[En se focalisant sur le cas des joueurs de football professionnels et des danseuses de cabaret, cet article met en lumière le rôle joué par différents types d'intermédiaire dans la mise en place, le développement et la gestion de canaux migratoires. Une attention particulière est accordée aux procédures recrutement et à la gestion de la circulation de ces deux catégories de travailleurs
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