1,721,603 research outputs found
Étude pétrographique de la céramique
No full textConvertini Fabien. Étude pétrographique de la céramique. In: Le Petit Paulmy, Abilly (Indre-et-Loire). Un habitat du néolithique final de la région pressignienne. Tours : Fédération pour l'édition de la Revue archéologique du Centre de la France, 2013. pp. 325-329. (Supplément à la Revue archéologique du centre de la France, 46
Amphores et vignobles dans le Piémont occidental des Pyrénées. Étude préliminaire
No full textProspektionen, die während mehrer Jahre in der Ebene von Tarbes durchgefuhrt wurden, erlauben heute eine erste Bilanz von der Bodennutzung in der Antike. Diese erlaubt die besondere Dichte der Siedlung, oftmals sehr unreif, und eine relative Standardisierung der Niederlassungen. Ierkennen lässt. Mehrere Werkstätten stellten Dachziegel, gemeine gedrehte Keramik aus hellem und grauem Ton und vor allem Amphoren, und hier insbesondere Weinamphoren, ähnlich dem Typ Dr. 2/4 her. Die ersten petrographischen Analysen bestätigen die Einheitlichkeit der Produktionen sowie ihre lokale Herkunft.Investigations conducted during several years in the plain of Tarbes can now lead to a first assessment of ground occupation in antiquity, which reveals how particularly dense population was, sometimes very early, and the relative standards which could exist between establishments. Several possible workshops produced tiles, common turned pottery in light or gray tones, but mostly amphoras and particularly those close to the Dr 2/4 type. Pétrographie analyses confirm the homogeneity of productions and its local origin.Les prospections menées durant plusieurs années dans la plaine de Tarbes permettent aujourd'hui de tracer un premier bilan de l'occupation du sol durant l'Antiquité. Celui-ci permet de mettre en évidence la densité particulière de l'habitat, parfois très précoce, et une relative standardisation des établissements. Plusieurs ateliers présumés produisaient des tuiles, des céramiques communes tournées à pâte claire et grise et surtout des amphores, et notamment des amphores vinaires proches du type Dr. 2/4. Les premières analyses pétrographiques confirment l'homogénéité des productions ainsi que leur origine locale.Rechin François, Convertini Fabien, Guédon Frédéric, Rousset Dominique, Sabathié Jean. Amphores et vignobles dans le Piémont occidental des Pyrénées. Étude préliminaire. In: Revue archéologique de Picardie, n°1-2, 2003. Cultivateurs, éleveurs et artisans dans les campagnes de Gaule romaine., sous la direction de Sébastien Lepetz et Véronique Matterne. pp. 347-369
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
Provenances et exploitations des terres à poterie des sites de Chalain (Jura), aux 31e et 30e siècles avant J.-C.
No full textAbstract Pétrographie and palaeontological studies have enabled the various source areas of potters' clay used on the Neolithic sites of Chalain Lake (Fontenu, Jura) during the 31s' and early 3O'h centuries ВС to be identified. It has proved possible to locate precise sites for several materials, in particular by the study of sedimentaiy microfacies and surveys of the terrain. The Neolithic settlements around Chalain Lake used several types of Jurassic marls with calcareous inclusions. In some cases the outcrops are located over 5, or even 8, km from the archaeological sites. Such great distances raise questions concerning the place and rate of production of late Neolithic potters — in the Jura region. The typological and technological study of several hundred pieces of pottery, combined with the precise dates available (both stratigraphical and dendrochronological), demonstrated that the evolution of ceramic pastes was much more rapid than that of pottery shapes and decoration. Research into ceramic technology has enabled the rapid evolution of technical activities, and of the social and economic factors they transcribe, to be established.Résumé Des études pétrographiques et paléontologiques ont permis de retrouver les différentes zones d'approvisionnement des terres à poterie utilisées sur les sites néolithiques du lac de Châtain (Fontenu, Jura) au ЗГ et au début du 30e siècles avant J.-C. Plusieurs matériaux ont pu être précisément localisés, notamment grâce à l'étude des microfaciès sédimentaires et à des prospections de terrain. Les communautés néolithiques du lac de Chalain ont employé plusieurs types de marnes et d'inclusions calcaires du Jurassique. Dans certains cas, les affleurements sont situés à plus de 5, ou plus de 8 km des sites archéologiques. L 'importance de ces distances soulève des questions concernant les lieux et les tythmes de production des potiers(ères) du Néolithique final jurassien. L'étude typologique et technologique de plusieurs centaines de poteries, associée à la précision des datations (stratigraphies et datations dendrochronologiques), a permis de montrer que l'évolution des pâtes céramiques est beaucoup plus rapide que celle des formes et des décors des poteries. Les études de technologie céramique permettent de restituer l'évolution rapide des activités techniques et des faits économiques et sociaux qu'elles retranscrivent.Martineau Rémi, Convertini Fabien, Boullier Annick. Provenances et exploitations des terres à poterie des sites de Chalain (Jura), aux 31e et 30e siècles avant J.-C.. In: Bulletin de la Société préhistorique française, tome 97, n°1, 2000. pp. 57-71
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
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