1,721,068 research outputs found
Qianshanosuchus Boerman & Perrichon & Yang & Li & Martin & Speijer & Smith 2023, GEN. NOV.
No full textQIANSHANOSUCHUS GEN. NOV. Zoobank registration: urn:lsid:zoobank.org:act: 52FA1082-28AB-4246-8385-C8AC77C4746D Etymology: ‘ Qianshano -’ after Qianshan Basin, where the only specimen was discovered; ‘- suchus ’ after ‘soukhos’, an Ancient Greek word for crocodile. Type species: Qianshanosuchus youngi gen. & sp. nov.Published as part of Boerman, Sophie A., Perrichon, Gwendal, Yang, Jian, Li, Cheng-Sen, Martin, Jeremy E., Speijer, Robert P. & Smith, Thierry, 2023, A juvenile skull from the early Palaeocene of China extends the appearance of crocodyloids in Asia back by 15 - 20 million years, pp. 787-811 in Zoological Journal of the Linnean Society 197 on page 791, DOI: 10.1093/zoolinnean/zlac067, http://zenodo.org/record/769603
Figure 5 in A juvenile skull from the early Palaeocene of China extends the appearance of crocodyloids in Asia back by 15-20 million years
No full textFigure 5. Skull of Qianshanosuchus youngi gen. & sp. nov. (IBCAS QS15), photograph (A) and interpretative drawing (B) in occipital view. Abbreviations: ex, exoccipital; fm, foramen magnum; fr, frontal; j, jugal; par, parietal; po, postorbital; q, quadrate; qj, quadratojugal; soc, supraoccipital; soc-par groove, medial groove on the supraoccipital and parietal; sq, squamosal; sq ridge, ridge on the lateral edge of the squamosal. Scale bar: 1 cm.Published as part of Boerman, Sophie A., Perrichon, Gwendal, Yang, Jian, Li, Cheng-Sen, Martin, Jeremy E., Speijer, Robert P. & Smith, Thierry, 2023, A juvenile skull from the early Palaeocene of China extends the appearance of crocodyloids in Asia back by 15-20 million years, pp. 787-811 in Zoological Journal of the Linnean Society 197 on page 795, DOI: 10.1093/zoolinnean/zlac067, http://zenodo.org/record/769603
Figure 12 in A juvenile skull from the early Palaeocene of China extends the appearance of crocodyloids in Asia back by 15-20 million years
No full textFigure 12. Comparison of the snout in ventral view among crocodyloids and alligatoroids. A, Qianshanosuchus youngi gen. & sp. nov. (IBCAS QS15). B, Asiatosuchus depressifrons (IRSNB R251). C, Dongnanosuchus hsui (DM000001-F000001, adapted from Shan et al., 2021). D, juvenile specimen of Crocodylus niloticus (IRSNB 4618, digitally reversed). E, juvenile specimen of Alligator mississippiensis (IRSNB 3480, digitally reversed). Abbreviations: fpm, foramen on the premaxillary– maxillary suture; fV, foramen for cranial nerve V. Scale bars: 1 cm.Published as part of Boerman, Sophie A., Perrichon, Gwendal, Yang, Jian, Li, Cheng-Sen, Martin, Jeremy E., Speijer, Robert P. & Smith, Thierry, 2023, A juvenile skull from the early Palaeocene of China extends the appearance of crocodyloids in Asia back by 15-20 million years, pp. 787-811 in Zoological Journal of the Linnean Society 197 on page 806, DOI: 10.1093/zoolinnean/zlac067, http://zenodo.org/record/769603
Figure 6 in A juvenile skull from the early Palaeocene of China extends the appearance of crocodyloids in Asia back by 15-20 million years
No full textFigure 6. Mandible of Qianshanosuchus youngi gen. & sp. nov. (IBCAS QS15), photographs (A, C, E, G) and interpretative drawings (B, D, F, H) in dorsal view (A, B), ventral view (C, D), labial view (E, F) and lingual view (G, H). Abbreviations: an, angular; ar, articular; emf, external mandibular fenestra; fic, foramen intermandibularis caudalis; glf, glenoid fossa; sur, surangular; sur ridge, ridge on the lateral surface of the surangular. Scale bar: 1 cm.Published as part of Boerman, Sophie A., Perrichon, Gwendal, Yang, Jian, Li, Cheng-Sen, Martin, Jeremy E., Speijer, Robert P. & Smith, Thierry, 2023, A juvenile skull from the early Palaeocene of China extends the appearance of crocodyloids in Asia back by 15-20 million years, pp. 787-811 in Zoological Journal of the Linnean Society 197 on page 795, DOI: 10.1093/zoolinnean/zlac067, http://zenodo.org/record/769603
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
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