1,721,010 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
The New Italian Cataloguing Rules (REICAT) and the UNIMARC standard: open problems and proposals for the application in library catalogues
No full textThe Italian community of UNIMARC users is examining the applicability of the New Italian Cataloguing rules (REICAT) in relation to the use of the UNIMARC standard in our catalogues and our OPACs. The new Italian rules have a new conceptual structure inspired on FRBR and the Frankfurt statement of principles. The
new code will change the bibliographic structure of on-line catalogues and it will also require a different use of UNIMARC for the Italian community. Using a real database of a real Italian OPAC we have simulated a cataloguing activity using REICAT together with the UNIMARC standards, just to test the possible use of the new Italian Rules, its consequences for the current workflows and the possible implementation requests referring to UNIMARC. The focus of this testing activity is on two main subjects: a) main changes of formal aspects of headings according to the new Italian rules and consequences of their use for the UNIMARC standard; and b) main changes related to the application of FRBR in the New Italian Cataloguing Rules, particularly regarding the use of the uniform title field in relation to work,
expression, manifestation; analysis of the possibilities actually offered by UNIMARC and proposals for the necessary implementation of the standard
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
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
Martensite quantification, mechanical properties and cold rolling in AISI301 austenitic stainless steel
No full textAustenitic Stainless steel known as AISI 301 are often used as cold rolled foil with very thin thickness (down to 0.2 mm). Such materials are further shaped by bending or stamping and need to show a suitable deformability even at the cold hardened stage as is the case of the commercialized product. The quantification of the martensite, precipitated as main by product of the cold deformation of the metastable
austenitic microstructure, is considered of dramatic importance to predict the toughness of this alloy. In this paper an original method to quantify the martensite by using the magnetic susceptibility (SQUID) is presented and the combination of the so collected data with stress-strain curves on differently deformed samples are discussed. The conclusions introduce the role of cold hardening in volume fraction
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