1,721,075 research outputs found
When Absence Means Things Are Going Well: Waste Disposal in Roman Towns and its Impact on the Record as Observed in Aquileia
No full textScholars of Roman archaeology, epigraphy, and history are increasingly discussing urban maintenance and waste disposal, but the impact of these phenomena on the archaeological record remains largely understudied. The presence of waste disposal systems in Roman towns entails that a large part of what was discarded was periodically removed from the urban area. This in turn implies that whole historical periods may be underrepresented by the finds recovered within the city. This aspect can be apprehended through the post-excavation analysis of the House of Titus Macer in Aquileia, whose mid-imperial phase, during which the domus was inhabited and regularly maintained, is poorly represented. What has been observed suggests that great caution must be exercised when using data collected within urban sites to draw conclusions on ancient economic trends. To tackle this problem, our research agendas should target large extra moenia dumps more frequently
Quantitative high-pressure liquid chromatographic determination of guanabenz and mephruside in pharmaceutical formulations
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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
Simultaneous determination of phenobarbital, phenytoin and methylphenobarbital in tablet formulations by HPLC
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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
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