34 research outputs found

    Large expert-curated database for benchmarking document similarity detection in biomedical literature search

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    Document recommendation systems for locating relevant literature have mostly relied on methods developed a decade ago. This is largely due to the lack of a large offline gold-standard benchmark of relevant documents that cover a variety of research fields such that newly developed literature search techniques can be compared, improved and translated into practice. To overcome this bottleneck, we have established the RElevant LIterature SearcH consortium consisting of more than 1500 scientists from 84 countries, who have collectively annotated the relevance of over 180 000 PubMed-listed articles with regard to their respective seed (input) article/s. The majority of annotations were contributed by highly experienced, original authors of the seed articles. The collected data cover 76% of all unique PubMed Medical Subject Headings descriptors. No systematic biases were observed across different experience levels, research fields or time spent on annotations. More importantly, annotations of the same document pairs contributed by different scientists were highly concordant. We further show that the three representative baseline methods used to generate recommended articles for evaluation (Okapi Best Matching 25, Term Frequency-Inverse Document Frequency and PubMed Related Articles) had similar overall performances. Additionally, we found that these methods each tend to produce distinct collections of recommended articles, suggesting that a hybrid method may be required to completely capture all relevant articles. The established database server located at https://relishdb.ict.griffith.edu.au is freely available for the downloading of annotation data and the blind testing of new methods. We expect that this benchmark will be useful for stimulating the development of new powerful techniques for title and title/abstract-based search engines for relevant articles in biomedical research.Peer reviewe

    Effets de la restriction calorique chronique, ou d'un mimétique, sur les performances cognitives chez un primate non humain, microcebus murinus

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    La restriction calorique (RC) chronique et modérée est actuellement le seul protocole connu qui allonge significativement l'espérance de vie chez des espèces à courte durée de vie. La RC retarderait les manifestations d'un certain nombre de pathologies liées à l'âge tout en conservant l'intégrité des grandes fonctions physiologiques. Dans I'optique de tester les effets de la RC ou d'un potentiel mimétique, le Resvératrol (RES), sur les fonctions cognitives d'un primate, le Microcèbe, des tests comportementaux et moteurs ont été utilisés pour évaluer I'impact de 6 mois de régime alimentaire (RC ou RES) sur les performances des animaux, en comparaison avec des animaux adultes ou âgés témoins. Les animaux en RC ont des performances diminuées par rapport à leurs congénères qui sont en alimentation ad libitum et sous RES en ce qui concerne la mémorisation spatiale, tandis que les individus sous RES ont un meilleur taux d'alternance totale que les contrôles. Aucun déficit moteur n'est observé, sauf pour les animaux âgés. La RC semble donc avoir un effet négatif sur certaines fonctions cognitives, alors que le RES aurait un effet positif. Le suivi de ces animaux à long terme permettra d'avoir un effet plus marqué du régime alimentaire sur les déficits cognitifs et moteurs apparaissant avec l'âge.TOULOUSE-EN Vétérinaire (315552301) / SudocMAISONS-ALFORT-Ecole Vétérin (940462302) / SudocSudocFranceF

    Local science-society relations: the legitimacy of coastal flood risk information

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    International audienceCommunities dwelling in Mediterranean regions have for a long time adapted to environmental hazards. They have developed over time culturally meaningful knowledge about their environment and about what behaviours are more adapted and under which conditions. Meanwhile modern territorial management involve technical and scientific solutions that can be locally contested as not pertinent or adapted. This project is interested in how people living in the Mediterranean French coast (Fréjus and Port-Saint-Louis-du-Rhône) adapt to or resist scientific arguments presented by local risk managers in relation to the risk of coastal floods. Interviews with local policymakers and community members explore their memory of past coastal flooding events, how they remember the risk was managed; how they evaluate present risk management; and what type of information they use to estimate coastal flood risks. This analysis focusses the discursive strategies used by local dwellers and local risk managers to justify their behaviours in response to scientific models for the region: knowledge legitimacy, identity and trust. This type of analysis can support local actors about how to improve local engagement for climate change adaptation

    Coastal inconsistencies: Living with and anticipating coastal flood risks in southern France

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    International audienceAs coastal floods will grow stronger due to climate change, coastal communities' capacity to perceive, understand and adapt to an evolving environment must be assessed. This study explores how inhabitants of two Mediterranean French cities, Fréjus and Port-Saint-Louis-du-Rhône (PSLR), understand and prepare for coastal flood risk. A constructivist approach was adopted combining elements of the Theory of Social Representations and the Social Amplification of Risk Framework. Semi-structured interviews were conducted with 41 inhabitants of these two localities. Local dwellers of the two cities base their knowledge of coastal flood risk on previous fluvial flood experiences. Affective attachment to the coast is expressed differently between localities-PSLR inhabitants describe an environmental history that is part of their personal history; whereas Fréjus inhabitants have elected this place to live. Risk attenuation argumentative strategies are identified: social comparison, risk comparison and fatalism. A shared understanding that 'something must happen' before coastal floods are taken seriously was also identified. This is discussed as an example of how the objectification process of social representations contributes to raising the societal awareness of new risks, or to their social amplification

    Confianza en la gestión pública del riesgo y dinámica social en caso de inundación

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    El cambio climático está forzando a los expertos en inundaciones costeras a involucrar a los residentes en la prevención de riesgos, en particular, a través de comunicaciones oficiales que incluyen recomendaciones de comportamiento. Este estudio tiene como objetivo comprender la integración que hacen los residentes de esta información oficial en relación con el riesgo de inundación. Se realiza un estudio cualitativo sobre el postulado teórico que considera que la dinámica social que se crea entre los gestores de riesgos y los residentes ayuda a explicar la relación con el riesgo de inundación. Estas dinámicas se analizan a través del tipo de confianza que los residentes depositan en los actores públicos de la gestión y el nivel de conocimiento que afirman tener. Se realizaron 20 entrevistas semiestructuradas con residentes de una ciudad costera expuesta al riesgo de inundaciones, reclutados mediante el método de bola de nieve hasta el punto de saturación. Los resultados sugieren que los residentes que sienten tener poco conocimiento confieren confianza social a los gestores de riesgos y una visión positiva de las comunicaciones sobre este riesgo; mientras que los que sienten tener mucho conocimiento sobre las inundaciones apoyan una confianza calculadora sobre los aspectos técnicos de la gestión y una visión negativa de las comunicaciones. Estos tipos de confianza reflejan una relación con el riesgo de inundación anclado en el espacio social donde los grupos toman posición en la dinámica social. En este sentido, para ser eficaz, la comunicación preventiva debería tener en cuenta no solo el contenido real del mensaje sino también los mecanismos sociales que apoyan su interpretación, en particular la confianza entre el mensajero y el destinatario

    Confianza en la gestión pública del riesgo y dinámica social en caso de inundación

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    International audienceClimate change forces coastal communities exposed to floods to involve residents more actively in risk prevention, notably through official communication including behavioral recommendations. In order to improve prevention impact, this study aims to understand how inhabitants deal with this official information and integrate it into their relation to flood risk. This qualitative study is based on the theoretical postulate that the social dynamics nested in the relations between risk managers and inhabitants contributing to explain inhabitants' relationship to flood risk. These social dynamics are analysed through the type of trust granted by inhabitants to risk managers and the level of knowledge inhabitants state to have. 20 semi-structured interviews were conducted with inhabitants of a coastal city subject to flood hazards, recruited through snowballing method until saturation point. Results suggest that inhabitants who feel that they have little knowledge are prone to display social trust toward risk managers and a positive vision of communications provided on this risk, while those who are aware about floods, endorse a calculating trust based on the technical aspects of management, and eventually a form of distrust about communications delivered by public actors. These types of trust reflect a relation to flood risk embedded in the social space where individuals and groups take positions in social dynamics. In this sense and to be successful, preventive communication should consider not only the actual content of the message but also the social mechanisms that support its interpretation, in particular the trust between the messenger and the receiver
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