1,721,001 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
Facteurs associés au dépistage tardif des patients infectés par le virus de l'immunodéficience humaine
No full textRENNES1-BU Santé (352382103) / SudocPARIS-BIUM (751062103) / SudocSudocFranceF
L'accès aux soins des personnes migrantes primo-arrivantes à Rennes
No full textRENNES1-BU Santé (352382103) / SudocPARIS-BIUM (751062103) / SudocSudocFranceF
Intérêt et réalisation du dépistage systématique du VIH en consultation de médecine générale
No full textEn 2009, le dépistage systématique du VIH à la population de 15 à 70 ans non exposée est recommandé. Son intérêt et sa réalisation ont été évalués auprès de 27 médecins généralistes bretons. L'intervention de 3 mois consistait à ajouter pour chaque prise de sang une sérologie VIH. Avant l'étude, un seul praticien suivait les recommandations. Pendant l'enquête, seulement six ont respecté rigoureusement la consigne (oubli du médecin, refus du patient). Malgré un taux de sérologies VIH majoré de 400%, aucune séropositivité n'a été découverte. La population VIH non diagnostiquée n'a pas été celle rencontrée en consultation. Au final, un médecin sur deux modifiera ses habitudes de prescription dont trois vers un dépistage systématique. Les pratiques sont conditionnées par les facteurs de risque identifiés. Les réticences sont liées au faible taux de VIH en Bretagne. Ainsi, le dépistage systématique devrait concerner uniquement la population en zone de forte prévalence.In 2009 systematic HIV testing was recommended for an unexposed population aged 15-70. Both interest and its carrying out were estimated among 27 Breton general practioners. The 3-month process consisted in adding a HIV serology for each blood test. Before the survey only one practitioner acted on the recommendations. During the study only six of them carefully followed the instructions (doctors' omission or patient's refusal). Despite a 400% raise of the HIV serology rate no seropositivity was detected. The non-diagnosed HIV population was not the one seen in the consultations. In the end, one out of two doctors will change his prescription habits, three of them choosing a systematic testing. The practices are influenced by the identified risk factors. The reluctances are linked to the low HIV infection rate in Brittany. Thus, systematic HIV testing should only affect the population in high-prevalence areas.RENNES1-BU Santé (352382103) / SudocSudocFranceF
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
Prise en charge de l'hépatite chronique virale C chez les patients coinfectés par le virus de l'immunodéficience humaine
No full textLYON1-BU Santé (693882101) / SudocRENNES1-BU Santé (352382103) / SudocSudocFranceF
- …
