1,721,017 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Approvisionner la restauration scolaire dans les espaces non centraux : l'exemple de la Normandie. Contribution à une géographie sociale de l'alimentation
No full textThis thesis looks at changes in supply practices in school catering (1 billion meals a year for 12 million pupils). School catering is a major issue (public health, sustainable development, food education, etc.), reinforced by the EGalim law, which encourages local authorities to source 50% of their supplies from quality products since the 1st of January 2022. We have identified three lines of research - a social dimension, the link to local supply, and the role of public policies - to answer the questions raised by shifts in demand for school catering in the face of changes in the food system. This research falls within the theoretical framework of social geography and food justice. While numerous studies on food focus on urban centers, this thesis on school catering in Normandy places non-central areas at the heart of the debate. Three study areas in western Normandy (Cotentin, Bocage virois, Perche) with distinct characteristics are used to test hypotheses about the pursuit of quality in school meals and the mechanisms of local food systems. The comparison of study areas is based on a mixed methodology: interviews with chefs are combined with analysis and mapping of several databases (CNESCO, INSEE, INCA, Ministry of Education).Cette thèse s’intéresse aux évolutions des pratiques d’approvisionnement de la restauration scolaire (1 milliard de repas par an pour 12 millions d’élèves). La restauration scolaire présente de forts enjeux (santé publique, développement durable, éducation alimentaire etc.), renforcés par la loi EGalim, encourageant les collectivités à s’approvisionner à 50 % en produits de qualité depuis le 1er janvier 2022. Nous identifions trois axes de recherche – une dimension sociale, le lien à l’offre locale, et le rôle des politiques publiques – pour répondre aux questionnements engendrés par les évolutions de la demande de la restauration scolaire face aux mutations du système alimentaire. Cette recherche s’inscrit dans le cadre théorique de la géographie sociale et de la justice alimentaire. Alors que les différentes études sur l'alimentation privilégient les pôles urbains, cette thèse sur la restauration scolaire en Normandie place les espaces non centraux au coeur de la réflexion. Trois terrains d'études en Normandie occidentale (Cotentin, Bocage virois, Perche) aux caractéristiques différentes permettent de tester les hypothèses sur la recherche de qualité pour les repas de la restauration scolaire et sur le fonctionnement de systèmes alimentaires locaux. La comparaison des espaces d’études s’appuie sur une méthodologie mixte : des entretiens auprès des chef·fes de cuisine sont confrontés à un travail d’analyse et de cartographie de plusieurs bases de données (CNESCO, INSEE, INCA, ministère de l’Éducation Nationale)
[Captation] Conférence au Pôle Rural de la MRSH : "Approvisionner la restauration scolaire dans les espaces non-centraux : l’exemple de la Normandie. Contribution à une géographie sociale de l’alimentation"
No full textSéminaire du pôle rural de la MRSH - Université de Caen Normandi
Proximité et qualité dans les approvisionnements de la restauration scolaire en France
No full textInternational audienceChez les chef·fes de cuisine de la restauration scolaire, les concepts de local et de qualité ont des définitions très variables. Ce travail est issu d’une thèse en cours sur les pratiques d’approvisionnement de la restauration scolaire en Normandie (France). Il questionne l’activation des différentes dimensions de la proximité dans les choix alimentaires (Praly et al., 2014) : spatiale, relationnelle, organisationnelle et économique. Les variations dans les pratiques d’approvisionnement de proximité sont abordées à l’aide de deux études de cas. Enfin, la définition de la qualité et la confrontation aux objectifs de la loi EGalim (20 % de bio, 50 % de produits durables et de qualité) est abordée
Alimentation locale et restauration collective dans l’aire urbaine de Caen
No full textLire le document sur https://atlas-social-de-caen.fr/index.php?id=362Les restaurants collectifs (présents dans les écoles, crèches, hôpitaux, entreprises) fournissent près de 24 millions de repas par an dans l’aire urbaine de Caen. Ils ont fait l’objet d’une enquête en 2017, principalement à propos de leurs achats alimentaires auprès des producteurs et transformateurs locaux ou des grandes entreprises du secteur
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