1,720,986 research outputs found
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
Lithic industries of the Ubaid and Post-Ubaid period in northern Mesopotamia
No full textLithic assemblages afford a significant insight into the organisation of raw material acquisition, tool production and the stages in their utilisation in prehistoric communities.
There has been much work on the emergence of standardisation and specialisation during the 5th - 4th millennium in northern Mesopotamia - especially within the pottery production. But for lithic stone tools, a general overview of the technological development is still to come, nor has a comprehensive picture of socio-economic lithic networks yet been outlined. One elementary indicator of a lithic network is the circulation of raw material, especially exchanges of obsidian, but the detailed analysis of lithic technological attributes can also reveal the different concepts at work in the manufacturing of stone tools.
This paper sets out to analyse the techno-typological evolution and transfer of new technologies from the angle of social networks in northern Mesopotamia during the 5th and 4th millennium BC ; and in particular to discuss the diverse lithic production strategies in the Ubaid and Post-Ubaid spheres.Les assemblages de céramiques jettent un bon éclairage sur l'organisation de l'acquisition des matières premières, la production d'outils et les différentes étapes de leur utilisation dans les communautés préhistoriques. On a beaucoup travaillé sur l'émergence de la standardisation et de la spécialisation, en particulier dans la production de céramiques, en Mésopotamie du Nord aux 5eme et 4eme millénaires av. n.è. Mais il reste à mener une analyse générale du développement technologique des industries lithiques, tandis qu 'il manque aussi une étude globale des réseaux socio-économiques associés à la circulation des outils lithiques. Un indicateur élémentaire des réseaux lithiques est constitué par la circulation des matières premières, en particulier des échanges d'obsidienne. Mais l'analyse détaillée des attributs technologiques des outils lithiques peut aussi mettre en évidence les différents concepts intervenant dans la fabrique des outils.
Cet article a pour ambition d'analyser l'évolution technologique et le transfert de nouvelles technologies du point de vue des réseaux sociaux en Mésopotamie du Nord durant les 5eme et 4eme millénaires av. n. è. ; en particulier pour débattre des diverses stratégies de production dans les sphères Obeid et Post-Obeid.Thomalsky Judith. Lithic industries of the Ubaid and Post-Ubaid period in northern Mesopotamia. In: After the Ubaid. Interpreting change from the Caucasus to Mesopotamia at the dawn of urban civilization (4500-3500 BC). Papers from The Post-Ubaid Horizon in the Fertile Crescent and Beyond. International Workshop held at Fosseuse, 29th June-1st July 2009. Istanbul : Institut Français d'Études Anatoliennes-Georges Dumézil, 2012. pp. 417-439. (Varia Anatolica, 27
Tappeh Rivi, Iran: Die iranisch-deutschen Arbeiten des Jahres 2016
Full text linkTappeh Rivi is located in the Samangan plain (10 km south of the Atrak valley) in the Iranian province North-Khorasan. The ancient site consists of at least four settlement mounds A, B, C and D and covers more than 110 ha. The central area is intensively damaged by soil-gathering activities of tile factories since the later 1970s. According to satellite data several ancient settlement hills and features like rectangular structures and hollow ways vanished during the last 40 years. Analyses of topographical data and satellite images give significant perspectives for future archaeological work, but also reflect the contrasting evidence of destruction by modern activities. Five major occupation periods can be described, dating from Early Iron Age to the Early Islamic period. A first 14C data series dates the occupation of mound A in the southern area into the time around 500 BC, while the data from mound B further north point to the first centuries AD. This matches the survey observations which show differing horizontal material complexes (Iron Age/Achaemenid occupation in the Southern area versus Parthian/Early Sasanian occupation in the North)
Urmiasee, Tepe Leilan, Tepe Dalma, Nordwest-Iran, Neubeginn am Urmiasee. Ein Beitrag zur Neolithisierung in Iran. Die Arbeiten ab 2020
Full text linkNW-Iran can be regarded as a cultural intermediate zone between the Iranian Highland, Northern Mesopotamia, South-eastern Turkey and the South-Caucasus. Archaeological research has a long history from the 1930s onwards, starting with the first visits of Sir Aurel Stein (1940) and Erich Schmidt’s airplane over Lake Urmia. Early investigations in South and East of Lake Urmia provided a regional sequence from the Late Neolithic – Chalcolithic – Bronze Age – Iron Age (Hasanlu X – Hasanlu II-I) that is roughly valid until today. Our understanding of the origin and formation processes of the Neolithic period in the Urmia Basin underlies a conventional model of a fully developed »package« that appears to have migrated from a Zagros core region elsewhere on the Irani-an Plateau during the early 6th millennium BC. Actually, the process can be regarded as diverse and rather complex, due to the high potential of possible interaction with adjacent regions and the possibility of additional possible regional developments for instance in the hilly flanks of the Alborz mountains along the South-Caspian shoreline. DAI Teheran started new investigations in the Lake Urmia region in order to gather new data and for a better understanding of the neoltihic process(es) in this particular interconnective region
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
Teheran, Iran. Das Projekt TehranDigital der Außenstelle Teheran: ›Nur‹ Digitalisierung?
Full text linkSince 2015 is the archive of the Tehran Branch »under digitalization«. Approx. 50.000 documents are already settled in our database and linked to iDAI.objects/Arachne. Beside the online-access of comprehensive 100 years of archaeological documentation in Iran that is stored in our archive and photograph collection, one major concern is the consolidation of our data with the different archives of the Iranian cultural heritage institutions which again provides important and innovative perspectives for future archaeological research and management of the Cultural Heritage of and in Iran
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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