1,720,987 research outputs found
Caelatura gerhardtae (De Jong et Coomans, 1988)
No full textCatálogo do Museo de Historia Natural USC. n. inventario 10004
Barleeia creutzbergi (De Jong et Coomans, 1988)
No full textCatálogo do Museo de Historia Natural USC. n. inventario 10004
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
The Marine Mollusca of St. Martin, Lesser Antilles, collected by H.J. Krebs
No full textIn 1864 an anonymous list of species of the West Indian marine mollusks was published in Denmark. There were only twenty copies printed, seven of which were lost during transportation to the West Indies (CLENCH et al., 1947—1948, p. 23). The author was HENDRIK JOHANNES KREBS (1821—1907), Fig. 117, a Danish apothecary who lived on St. Thomas, Virgin Islands, from 1843 to 1870. Being the owner of a wholesale firm, he travelled throughout the West Indies, which gave him an opportunity to collect shells and plants. His species list was entitled: “The West-Indian Marine Shells with some remarks. A manuscript printed for circulation between collectors.” It was published by W. Laub’s Widow & Chr. Jorgensen, at Nykjöbing, Falster.
As this work is very rare, a republication was issued by CLENCH, AGUAYO & TURNER (1947—1948). The republication is preceded by some remarks, and concludes with a portrait of KREBS, a biography and a bibliography. For more data concerning KREBS, reference should be made to this republication
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe 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
Marginella orstomi, a new species from deeper water off the coast of West Africa (Gastropoda, Marginellidae)
No full textMarginella (s. str.) orstomi nov. spec. was collected at a depth of 200 to 250 m, off Pointe Noire, Congo. The species is related to M. huberti Clover, 1972, from Angola. Both species have a characteristic white tooth on the inside of the outer lip near the posterior end
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