1,721,308 research outputs found
Le désert sensible... / Georges Rose ; [dessin de Béa Jomelli-Robert]
No full textCollection : L'échappée belle ; 32Contient une table des matièresAvec mode text
Incertitudes associées à la reconstruction de l'occurrence des avalanches par dendrogéomorphologie -Résumé
No full textGrancher Delphine, Pavlova Irina, Brunstein Daniel, Jomelli Vincent, Germain D. Incertitudes associées à la reconstruction de l'occurrence des avalanches par dendrogéomorphologie -Résumé. In: Collection EDYTEM. Cahiers de géographie, numéro 11, 2010. Panorama de la dendrochronologie en France. pp. 141-142
Analyses des relations entre la variation de la largeur des cernes de Polylepis et le climat tropical Andin - Résumé
No full textJomelli Vincent, Pavlova Irina, Grancher Delphine, Geai M.-L. Analyses des relations entre la variation de la largeur des cernes de Polylepis et le climat tropical Andin - Résumé. In: Collection EDYTEM. Cahiers de géographie, numéro 11, 2010. Panorama de la dendrochronologie en France. p. 87
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
The European glacial landscapes from the Early Holocene
No full textThe Early Holocene saw a major climate transition, the largest amplitude change in air temperatures of the last 11,700 years. As a consequence, glaciers rapidly retreated from their Pleistocene positions. This retreat coincided with peak mid-summer insolation in the Early Holocene, the highest of the last 11,000 years. However, summers were short due to peak eccentricity and large amplitude in orbital precession. Furthermore, changes in the oceanic circulation in the North Atlantic, in particular changes in the Atlantic Meridional Overturning Circulation caused in part by deglaciation of the large ice northern continental sheets, resulted in cold reversals and glacier advances, albeit relatively brief. By 9 ka however, the climate had warmed significantly, in some places to the warmest of the Holocene, although the Holocene Thermal Maximum was diachronous across Europe pushing well into the Middle Holocene in some areas. In any case, glaciers largely disappeared in many areas or reduced to their smallest extents of the entire Holocene
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
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