1,720,963 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Quelle est l’efficacité des antihistaminiques en prévention du mal des transports chez les adultes et enfants de moins de 18 ans ?
No full textCette revue systématique avec méta-analyse correctement menée, mais incluant des études majoritairement à haut risque de biais, montre qu’il y a probablement une efficacité des antihistaminiques de première génération chez les patients ≥16 ans ayant une sensibilité connue au mal des transports en prévention dans des conditions naturelles de mouvement. Des preuves de faible niveau de certitude montrent que les antihistaminiques peuvent être plus susceptibles de provoquer une sédation en comparaison au placebo
Appendicite aiguë non compliquée traitée par antibiothérapie : quelles sont les caractéristiques des patients associées au recours ultérieur à l’appendicectomie ?
No full textANALYSE DE Writing Group for the CODA Collaborative, Monsell SE, Voldal EC, Davidson GH, et al. Patient factors associated with appendectomy within 30 days of initiating antibiotic treatment for appendicitis. JAMA Surg 2022;157:e216900. DOI: 10.1001/jamasurg.2021.6900 QUESTION CLINIQUE : Quelles sont les caractéristiques des patients présentant une appendicite non compliquée associées au recours à l’appendicectomie dans les 30 jours après l’initiation d’un traitement par antibiotiques ? CONCLUSION : Cette étude de cohorte rétrospective correctement menée, révèle que la présence d'un appendicolithe est associée à un risque presque deux fois plus élevé de subir une appendicectomie dans les 30 jours suivant l'administration d'antibiotiques. Les caractéristiques cliniques souvent utilisées pour décrire la gravité de l'appendicite ne sont pas associées de manière significative aux risques d'appendicectomie dans les 30 jours. Cependant la durée du suivi, les critères d’exclusion, l’incertitude concernant le motif d’appendicectomie, permettent d’affirmer qu’il s’agit de données exploratoires nécessitant des études complémentaires afin de déterminer plus précisément les caractéristiques cliniques menant à l’appendicectomie
Variations on the Author
Get PDF“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
Dans une stratégie de stratification du risque d’allergie à la pénicilline : quelle est la place du score PEN-FAST dans la prise de décision clinique ?
No full textCette étude de cohorte rétrospective monocentrique montre que le score PEN-FAST, en abaissant le seuil à 2 points, pourrait constituer un outil efficace pour identifier les patients adultes à faible risque d’allergie à la pénicilline en situation de pratique «réelle». Cependant, plusieurs limites de l’étude, notamment son caractère monocentrique, la taille réduite de l'échantillon et la surreprésentation des femmes, en restreignent la généralisation. Par ailleurs, les critères d'inclusion flous et le biais de vérification pourraient entraîner une surestimation de la performance du score. Enfin, l'intervalle de confiance relativement large pour certaines mesures souligne une certaine incertitude quant à la précision des résultats. Des études pragmatiques en soins primaires sont donc nécessaires pour valider ces conclusions dans des populations plus diverses et avec un échantillon de patients plus large
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe 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
Get PDFWe 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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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