1,720,968 research outputs found
Hemilienardia O. Boettger 1895
No full textGenus Hemilienardia O. Boettger, 1895 Type species Pleurotoma malleti Récluz, 1852 (by original designation).Published as part of Fedosov, Alexander E., Stahlschmidt, Peter, Puillandre, Nicolas, Aznar-Cormano, Laetitia & Bouchet, Philippe, 2017, Not all spotted cats are leopards: evidence for a Hemilienardia ocellata species complex (Gastropoda: Conoidea: Raphitomidae), pp. 1-20 in European Journal of Taxonomy 268 on page 7, DOI: 10.5852/ejt.2017.268, http://zenodo.org/record/382321
Hemilienardia acinonyx Fedosov & Stahlschmidt & Puillandre & Aznar-Cormano & Bouchet & Umr & Umr 2017, sp. nov.
No full textHemilienardia acinonyx sp. nov. urn:lsid:zoobank.org:act: 0B56D2CD-F00D-4749-9C62-0993A5C2B3F2 Figs 2 E–F, 3D–E, 4C Etymology The epithet refers to the genus Acinonyx (family Felidae) and its graceful member, the cheetah. Used as a noun in apposition. Type material Holotype PHILIPPINES: Panglao Island, off Momo Beach, lumun-lumun net, 60–80 m (lv, 8.1 mm - Fig. 2E) (MNHN IM-2013-33593). Paratypes PHILIPPINES: paratype 1, same locality as holotype (lv, 5.5 mm) (MNHN IM-2013-33592); paratype 2, same locality as holotype (lv, 7,6 mm) (MNHN IM-2013-33594); paratype 3, Balicasag Island, lumunlumun net, 70–80 m (lv, 7.0 mm) (PS- 020556). Other material examined PAPUA NEW GUINEA: KAVIENG 2014, stn KB20, S coast of Baudisson Island, 2°45.2' S, 150°41.7' E, 8 m (1 dd, 6.8 mm). LOYALTY ISLANDS: Lifou, Atelier LIFOU 2000: stn 1441, Baie du Santal, 20°46.4' S, 167°02.0' E, 20 m (1 lv, 5.4 mm - Fig. 2F); stn 1448, Baie du Santal, 20°45.8' S, 167°01.65' E, 20 m (1 lv, 5.0 mm - Fig. 3 D–E). PHILIPPINES: same locality as holotype (juveniles, 4 lv, 2.9 mm, 2.8 mm, 2.7 mm, 2.5 mm). NEW CALEDONIA: LAGON Secteur de Poindimié, stn DW 830, 20°49' S, 165°19' E, 105–110 m (1 dd, 3.3 mm). FIJI: MUSORSTOM 10, stn CP1363, 18°12' S, 178°33' E, 144–150 m (1 dd, 4.4 mm). Description SHELL. Small, broadly fusiform to biconical (b/h 0.47; lw/h 0.67–0.69; a/h 0.48–0.5), with rather long and slightly recurved siphonal canal. Spire orthoconoid, teleoconch of 3.5–5 whorls. Suture incised, undulating. Adapical portion of teleoconch whorls forming wide concave depression, basal portion strongly convex, with periphery shifted towards lower suture. Sculpture of very strong, widely interspaced axial ribs (9–10 on last whorl), vanishing on adapical areas of whorls. Axial ribs overridden by rounded spiral cords, slightly thickened where intersecting axials. Interspaces shallow. Microsculpture of dense tubercles covering entire teleoconch surface and fine arcuate growth lines in adapical depression. Spire whorls sculptured with three spiral cords, adapical one weaker, than two succeeding; second spiral cord strongly elevated, giving spire whorls indistinctly shouldered appearance. Last adult whorl with 6 major spiral cords, and distinct thread situated in interspace between third and fourth major cords. Siphonal canal long, recurved abaxially, deeply notched at its tip, sculptured with oblique rows of tubercles. Aperture elongate, slightly contorted. Outer apertural lip with moderately developed varix, its inside with four denticles, of which the adapicalmost is strongest. Inner lip contorted below its mid-height, with oblique cords sculpturing fasciole, continuing inside aperture. Anal sinus rounded, deep and rather narrow, slightly constricted by subsutural callous tubercle. PROTOCONCH. White, narrowly conical, of 2.3 evenly convex whorls. PI whorls with sharp spiral cords on its abapical portion, intersected by short axial strokes to form elevated, cross-shaped tubercles. PII sculptured with subsutural row of fine, evenly spaced, axial riblets and bearing somewhat “crumpled” diagonally cancellate sculpture on periphery. COLOUR. Background colour white with yellow line in interspace between third and fourth spiral cords, and regular triangular or squarish olive blotches encircled by darker line, situated above third spiral cord in interspaces between axial folds. Similar blotches covering shell base and siphonal canal. RADULA. Very small, consisting of less than 10 rows of marginal teeth that are triangular, flat, with slightly thickened margins (Fig. 4D). Tooth width about 24 μm, length about 35 μm (about 1.5% of aperture height). DIMENSIONS. Holotype 8.1 × 3.8 mm. Distribution and habitat Recorded from the Philippines, Papua New Guinea, New Caledonia and Fiji, living at depths of 20– 70 m. Remarks Hemilienardia acinonyx sp. nov. can be distinguished from other eye-spotted species of Hemilienardia by its orthoconoid spire with rather small protoconch, and the presence of the diagnostic spiral thread in the interspace between the third and fourth spiral cords. The ocellae decorating shell of H. acinonyx sp. nov. are usually triangular or squarish, which easily tells it apart from the more common H. ocellata. Specimens of H. acinonyx sp. nov. from the type locality notably exceed other ocellated species of Hemilienardia in size, as they may reach a height of 10–12 mm. Besides, the radula teeth in studied specimens of H. acinonyx sp. nov. are about three times shorter compared to the marginals of H. ocellata, and are flattened, broadly triangular in shape.Published as part of Fedosov, Alexander E., Stahlschmidt, Peter, Puillandre, Nicolas, Aznar-Cormano, Laetitia & Bouchet, Philippe, 2017, Not all spotted cats are leopards: evidence for a Hemilienardia ocellata species complex (Gastropoda: Conoidea: Raphitomidae), pp. 1-20 in European Journal of Taxonomy 268 on pages 11-13, DOI: 10.5852/ejt.2017.268, http://zenodo.org/record/382321
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
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
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
- …
