1,720,974 research outputs found
The contribution of micro-destructive investigations on corrosion layers to the study of provenance of archaeological bronze artefacts
No full textStudio archeometrico di reperti bronzei
Thermoanalytical contribution to the study on paper degradation: characterisation of oxidised paper
No full text
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
Studies on environmental deterioration in slate manufactured articles of the old historical centre of Genoa using X-Ray diffraction, scanning electron microscopy, calcimetry and porosimetry. Some investigations on polymeric materials shielding
No full textInteractions between paper and absorbed molecules. Preliminary study and experimental results
No full textArchaeometallurgical characterisation of two small copper–based statues from the Cividale Museum (Friuli, Italy)
No full textAn archaeometallurgical research project has been underway for several years in the laboratories of the Department of Chemistry and
Industrial Chemistry of the University of Genoa (Italy). Its principal objective is to identify the relationship between ancient metallic artefacts
and how they are made. Other objectives are the alteration and conservation problems of the artefacts. This work analyses two small
copper-based statues, found near Udine (Italy), focusing on their originality and their craftsmanship. Chemical physical analyses where carried
out using neither destructive nor microdestructive techniques. The two small copper-based statues were found near Udine and are currently in
the Cividale Museum (Friuli, Italy)
Aspects of metallurgical activity in Liguria (Italy) in the middle and late bronze age
No full textSome aspects of ancient metallurgy of Liguria were analyzed. Several Bronze-age objects were studied by means of X-ray diffraction and metallography
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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