1,721,024 research outputs found
Expansion en 2011 de Vespa velutina Lepeletier en Europe (Hym., Vespidae)
No full textRome Quentin, Muller Franck, Villemant Claire. Expansion en 2011 de Vespa velutina Lepeletier en Europe (Hym., Vespidae). In: Bulletin de la Société entomologique de France, volume 117 (1),2012. p. 114
Spread of the invasive hornet Vespa velutina Lepeletier, 1836, in Europe in 2012 (Hym., Vespidae)
No full textRome Quentin, Dambrine Lucile, Onate Coralie, Muller Franck, Villemant Claire, García-Pérez Ana L., Maia Miguel, Carvalho-Esteves Paulo, Bruneau Etienne. Spread of the invasive hornet Vespa velutina Lepeletier, 1836, in Europe in 2012 (Hym., Vespidae). In: Bulletin de la Société entomologique de France, volume 118 (1),2013. pp. 21-22
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
Observations sur le Frelon asiatique à pattes jaunes, Vespa velutina Lepeletier, 1836 (Hymenoptera, Vespidae)
No full textObservations on the Yellow-Legged Hornet Vespa velutina Lepeletier, 1836 (Hymenoptera, Vespidae). Sampling performed in May 2010 during a trip in Indonesia provided data on the distribution of different varieties of Vespa velutina Lepeletier, 1836, in this archipelago as well as on foraging and hunting behavior of the species. These data contribute to a better understanding of the feeding behavior of this invasive hornet introduced in France before 2004.Les collectes réalisées en mai 2010 lors d'une mission en Indonésie ont permis d'acquérir des données sur la distribution de différentes variétés de Vespa velutina Lepeletier, 1836, présentes sur cet archipel, ainsi que sur le comportement de chasse et de butinage de l'espèce. Ces données aident à une meilleure compréhension du comportement alimentaire de ce frelon invasif introduit en France avant 2004.Perrard Adrien, Muller Franck, Rome Quentin, Villemant Claire. Observations sur le Frelon asiatique à pattes jaunes, Vespa velutina Lepeletier, 1836 (Hymenoptera, Vespidae). In: Bulletin de la Société entomologique de France, volume 116 (2),2011. pp. 159-164
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
Bilan 2008 de l’invasion de Vespa velutina Lepeletier en France (Hymenoptera, Vespidae)
No full text2008 assessment of Vespa velutina Lepeletier spread in France (Hymenoptera, Vespidae). The Asiatic hornet Vespa velutina, which was introduced before 2004, already spread throughout almost all the south-west of France. After extensive data validation, nest records registered on the INPN (MNHN) data base enabled to draw the annual spread of the invasive species. We describe here the data validation criteria and assess the evolution of the number and distribution of recorded nests from 2004 to 2008.Le Frelon asiatique Vespa velutina, introduit avant 2004, s’est depuis largement répandu dans la quasitotalité du sud-ouest de la France. Après un important travail de validation des données, l’enregistrement des signalements de nids sur la base de l’INPN (MNHN) a permis de cartographier l’expansion annuelle de l’invasion. Nous décrivons ici les critères de validation pris en compte et faisons le bilan de la situation en analysant l’évolution du nombre de nids recensés et leur distribution de 2004 à 2008.Rome Quentin, Muller Franck, Gargominy Olivier, Villemant Claire. Bilan 2008 de l’invasion de Vespa velutina Lepeletier en France (Hymenoptera, Vespidae). In: Bulletin de la Société entomologique de France, volume 114 (3),2009. pp. 297-302
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