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A new family of the order Ctenopoda (Crustacea: Cladocera) from the depths of the Black Sea
No full textKorovchinsky, Nikolai M., Sergeeva, Nelli G. (2008): A new family of the order Ctenopoda (Crustacea: Cladocera) from the depths of the Black Sea. Zootaxa 1795: 57-66, DOI: 10.5281/zenodo.18264
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
FIGURE 3. Pseudopenilia bathyalis Sergeeva, 2004 in A new family of the order Ctenopoda (Crustacea: Cladocera) from the depths of the Black Sea
No full textFIGURE 3. Pseudopenilia bathyalis Sergeeva, 2004. Adult female (holotype) (E, right, G), juvenile females (paratypes) (A–D, E, left, F). A, early juvenile specimen, general lateral view. B, postabdomen of the same specimen. C, postabdomen of large juvenile specimen. D, postabdomen, lateral view. E, dorso-posterior shell margin. F, postabdominal claw. G, posterior body part. G, after original drawings by Sergeeva; all others are new drawings. In the adult specimen (Fig. E, right) not all marginal denticles were visible during the reinvestigation.Published as part of Korovchinsky, Nikolai M. & Sergeeva, Nelli G., 2008, A new family of the order Ctenopoda (Crustacea: Cladocera) from the depths of the Black Sea, pp. 57-66 in Zootaxa 1795 on page 62, DOI: 10.5281/zenodo.18264
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
Performance riproduttive della lepre allevata in cattività a fini di ripopolamento faunistico-venatorio
No full textOsservazioni sul fenomeno della superfetazione nella lepre in condizioni di allevamento in cattività
No full textSoft-shelled, monothalamous foraminifera from the oxic/anoxic interface (NW Black Sea)
No full textWe describe single-chambered (monothalamous), soft-shelled, benthic foraminifera from the lower oxygen-border zone to the upper hydrogen-sulfide-border zone (120 – 240m water depth) in theNWBlack Sea. The transect is situated inside the field of active methane seeps associated with the submarine Dnieper Canyon, although none of the samples are from the seeps themselves. Within this depth range, monothalamous foraminifera were more numerous than hard-shelled, multichambered taxa. Both groups reached theirhighest abundance between 150 and 170m,with a sharp peak at 160m.Atotal of 40 informal groupings (morphospecies or morphotypes), and one described species, of monothalamous foraminifera, either organic-walled ‘allogromiids’ or agglutinated ‘saccamminids’, was recognised. In all studied samples, they were found within the surficial detritus layer as well as the underlying 0-1cm sediment layer
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