1,721,461 research outputs found
Vidal, D. -Violences et Vérités, 1995
Singaravélou . Vidal, D. -Violences et Vérités, 1995. In: Cahiers d'outre-mer. N° 194 - 49e année, Avril-juin 1996. Inde du sud tradition et modernité. p. 220
Virtual range of motion analysis of the neck of Amargasaurus cazaui (Sauropoda: Dicraeosauridae)
Amargasaurus cazaui, a dicraeosaurid sauropod from the Lower Cretaceous of Neuquén (Argentina), had extremely elongated and forked cervical neural spines, a notable condition among its group. These peculiar, extremely elongated neural spines (with an orientation ranging from slightly anteriorly oriented in the posteriormost cervical vertebrae to a quite posteriorly inclined in middle to anterior ones) have led to propose several functional hypotheses. In order to test them, we have conducted a range of motion analysis using high-resolution 3D photogrammetric scans of the original fossils. To measure heights and angles in relation with the body, we have digitally mounted all preserved fossils. The osteologically induced curvature of the dorsal series, not very well preserved, compares favourably with the exquisitely preserved dorsal column of Brachytrachelopan mesai (another dicraeosaurid). The snout of our reconstruction is at 1.98 m above the ground in an osteologically neutral pose (higher than the 0.70 m obtained in previous studies). The prezygapophyseal facets are extremely large and antero-posteriorly elongated in all cervical vertebrae up to the cervicodorsal transition, substantially more than in Brachytrachelopan or other diplodocids (i.e., Diplodocus or Apatosaurus). Dorsiflexion is limited due to the elongated, posteriorly directed spines, whereas ventriflexion is not. Ventriflexion allows the snout to reach the ground without dislocation or flexing/abducting the forelimbs, while maximum dorsiflexion allows a maximum height of 4.5 m. This implies that Amargasaurus was a medium to low browser, as previously proposed. Greater intervertebral flexibility than in other diplodocoids supports the absence of a double sail in the neck of Amargasaurus, as well as the ability to perform potential display and/or agonistic behaviors.Fil: Vidal, D.. Universidad Nacional de Educacion A Distancia. Facultad de Ciencias.; EspañaFil: Serrano Martínez, A.. Universidad Nacional de Educación a Distancia; EspañaFil: Windholz, Guillermo Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina4th International Meeting of Early-stage Researchers in PalaeontologyMadridEspañaMuseo Paleontológico de Castilla-La Manch
Vidal D., Etude sur les idéologies. Le cas particulier des idéologies syndicales.
Dubar Claude. Vidal D., Etude sur les idéologies. Le cas particulier des idéologies syndicales.. In: Revue française de sociologie, 1971, 12-3. pp. 446-450
Vidal, D., Tarabout, G. Et Mayer, E. eds -Violences et non-violences en Inde., 1994
Singaravélou . Vidal, D., Tarabout, G. Et Mayer, E. eds -Violences et non-violences en Inde., 1994. In: Cahiers d'outre-mer. N° 194 - 49e année, Avril-juin 1996. Inde du sud tradition et modernité. pp. 219-220
Achcar G., Gresh A., Radvanyi J., Rekacewicz P., Vidal D. (dir.), L'Atlas du Monde diplomatique
Troin Jean-François. Achcar G., Gresh A., Radvanyi J., Rekacewicz P., Vidal D. (dir.), L'Atlas du Monde diplomatique. In: Annales de Géographie, t. 112, n°633, 2003. p. 551
Going Beyond Counting First Authors in Author Co-citation Analysis
The 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
“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
We 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
Dubois P., Dulong R., Durand C., Erbes-Seguin S. et Vidal D. Grèves revendicatives ou grèves politiques ?
Dassa Sami. Dubois P., Dulong R., Durand C., Erbes-Seguin S. et Vidal D. Grèves revendicatives ou grèves politiques ?. In: Revue française de sociologie, 1971, 12-3. pp. 442-444
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