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A valid priacanthid species, Pristigenys refulgens (Valenciennes 1862), and a redescription of P. niphonia (Cuvier in Cuvier & Valenciennes 1829) in the Indo-West Pacific (Perciformes: Priacanthidae)
No full textIwatsuki, Yukio, Matsuda, Tsuyoshi, Starnes, Wayne C., Nakabo, Tetsuji, Yoshino, Tetsuo (2012): A valid priacanthid species, Pristigenys refulgens (Valenciennes 1862), and a redescription of P. niphonia (Cuvier in Cuvier & Valenciennes 1829) in the Indo-West Pacific (Perciformes: Priacanthidae). Zootaxa 3206: 41-57, DOI: 10.5281/zenodo.20847
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
Pristigenys
No full textKey to the species of Pristigenys from the Indo-West Pacific 1 a. Soft dorsal-fin rays 12; anal soft rays 11; many red narrow bars on body with many red spots between bars in adult fresh specimens, mid-lateral scales (Figure 1) with posterior spinules coarse and few in number (less than 25 at all sizes, Starnes, 1988, figure 1 b).................................................................................... P. m e y e r i 1 b. Soft dorsal-fin rays 11; anal soft rays 10; five white or light indistinct bars on body; mid-lateral scales with posterior spinules finer, more numerous (25–55 in specimens over 150 mm SL, Figures 7, 8)....................................... 2 a 2 a. Soft portions of vertical fins with black margins (usually persisting in preserved specimens); five white or pale vertical bands on body narrower and distinct, about 1 / 4 – 2 / 5 width of pupil; dorsal and ventral portions of third vertical band only slightly wider than mid-lateral portion and nearly vertical (Figures 2 A, 3 A, 6 A); total gill rakers on first arch 23–26, mode 24 (6–9 on upper limb, 16–18 on lower); posterior spinules on mid-lateral scales lower in number, usually 20-40 (mean of S 1 –S 4, see Figure 1) in specimens over 150 mm SL (Figure 7 A) though decreasing in very large individuals (> 250 mm SL); caudal fin more rounded (Figures 1 A, 6 A)............................................................. P. refulgens (Figure 2 A) 2 b. Soft portions of vertical fins lacking black margins; five white or pale vertical bands (often indistinct) on body somewhat wider, around 1 / 2–3 / 5 width of pupil diameter (Figures 2 B, 3 B–D, 6 B) with dorsal and ventral portions expanded obliquely posterodorsally (often strongly curved posteriorly in young less than 100 mm SL (Figures 2 B, 3 B–D); total gill rakers on first arch 27–31, mode 27 (7–10 on upper limb, 19–22 on lower); posterior spinules on mid-lateral scales finer and more numerous, usually 35–60 in specimens over 150 mm SL (Figure 7 B) increasing with growth; caudal fin somewhat double emarginate in adults............................................................................. P. niphonia (Figure 2 B)Published as part of Iwatsuki, Yukio, Matsuda, Tsuyoshi, Starnes, Wayne C., Nakabo, Tetsuji & Yoshino, Tetsuo, 2012, A valid priacanthid species, Pristigenys refulgens (Valenciennes 1862), and a redescription of P. niphonia (Cuvier in Cuvier & Valenciennes 1829) in the Indo-West Pacific (Perciformes: Priacanthidae), pp. 41-57 in Zootaxa 3206 on page 43, DOI: 10.5281/zenodo.20847
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
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
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
The Ecology and Life History of the Endangered Snail Darter, \u3cem\u3ePercina (Imostoma) tanasi\u3c/em\u3e Etnier
Get PDFA 2-year study of the ecology and life history of the snail darter, Percina tanasi, was conducted from 1974 to 1976. The snail darter was found to be a strictly benthic species principally associated with a large river gravel shoal habitat where it feeds and reproduces. Its present range is restricted to the lower Little Tennessee River and a small adjacent portion of the Tennessee River. It is speculated that P. tanasi once occupied a much wider range in the upper Tennessee River drainage which has since been curtailed by impoundments. This species was found to be a short-lived darter which, along with other members of the subgenus Imostoma, spawns in mid-winter. Larval drift is a significant even in the life of the snail darter, and early development is very slow. Adults are migratory, especially during the breeding season. The principal diet constituents are gastropods; there is some utilization of insects. A high degree of selectivity is exercised in procuring the gastropod diet, and there are seasonal trends in both diet composition and consumption levels. P. tanasi occupies a remote position in the Little Tennessee food web. Predation is thought to be high on the eggs and larval stages of P. tanasi but low on adults. Parasitism is very low. The present ecological situation of the snail darter is thought to be considerably altered from that of preimpoundment days. It is threatened with extinction if the remainder of its habitat is inundated by the Tellico Dam
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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