1,720,982 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
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
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
Valorisation des échalotes en Côte d'Ivoire
No full textLa Côte d'Ivoire occupe la première place des pays importateurs d'oignons (Allium cepa L.) en Afrique de l'Ouest, avec plus de 50.000 T/an pour un marché global estimé à moins de 60.000 T/an (1995). Les tentatives de solutions pour accroître une production nationale en oignon rencontrent des difficultés à cause des conditions climatiques largement défavorables sur la majeure partie du territoire. Cependant, une alternative passerait par un développement de la culture de l'échalote (Allium cepa var aggregatum), variété traditionnelle cultivée sur l'ensemble du pays. Les premières analyses économiques montrent qu'il existe un marché en fin de saison des pluies, de août à décembre, alors que l'oignon importé manque et voit son prix augmenter. Mais du fait de l'éclatement de sa production, l'échalote ne bénéficie pas d'une commercialisation d'envergure. Là est l'enjeu de la recherche agronomique. Les premières investigations ont abouti à la collecte d'une vingtaine d'accessions d'échalotes qui peuvent faire l'objet d'une amélioration génétique. Les premières évaluations agromorphologiques ont permis de déterminer l'aptitude de certaines accessions à la bulbification et à la floraison
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
Place des échalotes ivoiriennes sur le marché d'Abidjan par rapport aux oignons importés
Get PDFAvec plus de 50 000 t importées en 1995, la Côte d'Ivoire est le premier pays importateur d'oignons (#Allium cepa# L.) d'Afrique de l'Ouest. Cependant, son climat, globalement défavorable à cette culture, ne permet pas d'envisager d'accroître la production nationale. L'exploitation de types traditionnels d'échalotes (#A. cepa# var #aggregatum#) pourrait permettre de pallier ce problème. Des enquêtes économiques portant sur le comportement des commerçants et consommateurs d'Abidjan vis-à-vis de l'échalote ont été menées de 1994 à 1996. Par ailleurs, une prospection a permis de collecter 23 écotypes d'échalotes locales qui ont été étudiés en parcelle expérimentale en 1995. En complément, la production de certaines descendances sexuées issues de la pollinisation libre de sept de ces écotypes a été analysée en 1997. Les échalotes peuvent remplacer l'oignon importé d'août à décembre, mais elles ont une image de produit "rural" et sont peu consommées en ville. Leur faible volume commercialisé fait monter leur prix. Enfin, la taille réduite de leurs bulbes dissuade certains consommateurs. Parmi les 23 écotypes étudiés, six ont associé cycle court et fort rendement. Les analyses agromorphologiques ont révélé quatre écotypes propices à la floraison. Les plants issus de semences ont produit des échalotes de grande taille, mais la couleur blanche de certains des caïeux récoltés ne correspond pas à la demande des consommateurs nationaux. A partir de ces résultats, la culture de certains écotypes à cycle court et forts rendements pourrait être encouragée de même que celle de plants d'origine sexuée aptes à produire des caïeux de bonne dimension et moins favorables à la transmission de maladies d'un cycle de production à l'autre
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
- …
