1,721,175 research outputs found
Partial redescriptions of three holothurians with "hook papillae" (Apodida Chiridotidae): Taeniogyrus japonicus (Marenzeller, 1882), T. dendyi (Mortensen 1925), Scoliorhapis theelii (Heding, 1928)
No full textYamana, Yusuke, Yamamoto, Masaki, Ota, Yuzo, Kohtsuka, Hisanori, Omori, Akihito, Iwasaki, Kazuma, Setiamarga, Davin H. E. (2022): Partial redescriptions of three holothurians with "hook papillae" (Apodida Chiridotidae): Taeniogyrus japonicus (Marenzeller, 1882), T. dendyi (Mortensen 1925), Scoliorhapis theelii (Heding, 1928). Zootaxa 5138 (4): 351-387, DOI: https://doi.org/10.11646/zootaxa.5138.4.
Fig. 1 in First Record of the Family Myxasteridae (Asteroidea: Velatida) from Western North Pacific with Description of a New Species of Asthenactis
No full textFig. 1. Sampling site of Asthenactis agni n. sp. (indicated by an orange star) and the geographic distribution of nine known species of the family Myxasteridae in the world's oceans. a, Asthenactis australis; b, Asthenactis papyraceus; c, Asthenactis fisheri; d, Myxaster medusa; e, Myxaster perrieri; f, Myxaster sol; g, Pythonaster atlantidis; h, Pythonaster murrayi; i, Pythonaster pacificus. Previous records with information of the sampling sites and/or coordinates are shown herein (Fisher 1906; Alton 1966; Downey 1979; Clark and Downey 1992; Howell et al. 2002; Dilman 2005; McKnight 2006; Mah et al. 2012; Mah 2020). The locality of A. papyraceus and one of the localities of P. atlantidis are Hawaii and the Porcupine Abyssal Plain, respectively, without data on the coordinates (open circles) (Fisher 1906; Howell et al. 2002). The colors of plots of orange, green, and purple correspond to the genera Asthenactis, Myxaster, and Pythonaster, respectively.Published as part of Kobayashi, Itaru, Yamamoto, Masaki, Fujiwara, Yoshihiro, Tsuchida, Shinji & Fujita, Toshihiko, 2022, First Record of the Family Myxasteridae (Asteroidea: Velatida) from Western North Pacific with Description of a New Species of Asthenactis, pp. 251-258 in Species Diversity 27 (2) on page 252, DOI: 10.12782/specdiv.27.251, http://zenodo.org/record/717544
Fig. 4 in First Record of the Family Myxasteridae (Asteroidea: Velatida) from Western North Pacific with Description of a New Species of Asthenactis
No full textFig. 4. Actinal views of Asthenactis agni n. sp. Holotype, NSMT E-13917. A, Whole body; B, denuded actinal surface at the proximal part of arm; C, actinal surface of the 1st to 4th adambulacral plates; D, actinal surface of the 5th to 6th adambulacral plates, showing an aperture (arrowhead) of an actinolateral membrane. Tips of furrow spines on 5th adambulacal plate shown as the white dotted line were removed; E, actinal surface of oral plates and 1st to 2nd adambulacral plates; F, actinal surface of ambulacral groove. Abbreviations: a, abradial-most actinolateral spine; ad, adambulacral plates; f, furrow spines; or, oral plates; os, oral spines; t, tube feet. Arabic numerals 1 to 6 indicate the spines standing on 1st to 6th adambulacral plates, respctively. Scale bars indicate 10 mm in A and 1 mm in B–F. Proximal is left in B, C, D, and F and bottom in E.Published as part of Kobayashi, Itaru, Yamamoto, Masaki, Fujiwara, Yoshihiro, Tsuchida, Shinji & Fujita, Toshihiko, 2022, First Record of the Family Myxasteridae (Asteroidea: Velatida) from Western North Pacific with Description of a New Species of Asthenactis, pp. 251-258 in Species Diversity 27 (2) on page 254, DOI: 10.12782/specdiv.27.251, http://zenodo.org/record/717544
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
sj-pdf-1-vdi-10.1177_10406387231202529 – Supplemental material for Apocrine carcinoma-and-malignant myoepithelioma in a dog: a case of simultaneous malignant progression of both luminal epithelium and myoepithelium
No full textSupplemental material, sj-pdf-1-vdi-10.1177_10406387231202529 for Apocrine carcinoma-and-malignant myoepithelioma in a dog: a case of simultaneous malignant progression of both luminal epithelium and myoepithelium by Kana Matsumoto, Takuya Evan Kishimoto, Masami Yamamoto, Masaki Michishita, Kimimasa Takahashi and Hisashi Yoshimura in Journal of Veterinary Diagnostic Investigation</p
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
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