1,720,964 research outputs found
On the taxonomic status of Teyuwasu barberenai Kischlat, 1999 (Archosauria Dinosauriformes), a challenging taxon from the Upper Triassic of southern Brazil
No full textGarcia, Maurício S., Müller, Rodrigo T., Dias-Da-Silva, Sérgio (2019): On the taxonomic status of Teyuwasu barberenai Kischlat, 1999 (Archosauria Dinosauriformes), a challenging taxon from the Upper Triassic of southern Brazil. Zootaxa 4629 (1): 146-150, DOI: 10.11646/zootaxa.4629.1.1
FIGURE 1. A in On the taxonomic status of Teyuwasu barberenai Kischlat, 1999 (Archosauria Dinosauriformes), a challenging taxon from the Upper Triassic of southern Brazil
No full textFIGURE 1. A—Stratigraphic column [after Langer et al. (2018)] of the type-locality of both 'Teyuwasu' and Staurikosaurus. Main column depicting the main outcrop of the Alemoa complex with auxiliary column depicting the approximate level that yielded the abovementioned specimens. B—skeletal reconstructions of 'Teyuwasu' and Staurikosaurus depicting known bones in white and unknown in gray. C—Proximal portion of the right femur of 'Teyuwasu' (BSPG AS XXV 53), in cranial view. D—Proximal portion of the left (reversed) femur of Staurikosaurus (MCZ 1669), in cranial view. E—Proximal portion of the left (reversed) femur of Saturnalia (MCP 3944-PV), in cranial view. F—Proximal portion of the right femur of Buriolestes (ULBRA-PVT280), in cranial view. G—Distal end of the right tibia of 'Teyuwasu barberenai' (BSPG AS XXV 54), in distal view. H—Distal end of the left (reversed) tibia of Staurikosaurus (MCZ 1669), in distal view. I—Distal end of the left tibia of Panphagia (PVSJ 874), in distal view. J—Distal end of the right tibia of Macrocollum (CAPPA/UFSM 0001c), in distal view. Abbreviations: at, anterior trochanter; dlt, dorsolateral trochanter; fh, femoral head; plf, posterolateral flange; ts, trochanteric shelf.Published as part of Garcia, Maurício S., Müller, Rodrigo T. & Dias-Da-Silva, Sérgio, 2019, On the taxonomic status of Teyuwasu barberenai Kischlat, 1999 (Archosauria Dinosauriformes), a challenging taxon from the Upper Triassic of southern Brazil, pp. 146-150 in Zootaxa 4629 (1) on page 148, DOI: 10.11646/zootaxa.4629.1.12, http://zenodo.org/record/333549
Extended Data Fig. 2 in New reptile shows dinosaurs and pterosaurs evolved among diverse precursors
No full textExtended Data Fig. 2 | Life and skull reconstruction of Venetoraptor gassenae gen. et sp. nov. (CAPPA/UFSM 0356). a, Skull reconstruction in left lateral view according to the preserved bones of the holotype.b, Head reconstruction in left lateral view. c, Head reconstruction in left anterolateral view.Life reconstruction by Caio Fantini.Published as part of Müller, Rodrigo T., Ezcurra, Martín D., Garcia, Mauricio S., Agnolín, Federico L., Stocker, Michelle R., Novas, Fernando E., Soares, Marina B., Kellner, Alexander W. A. & Nesbitt, Sterling J., 2023, New reptile shows dinosaurs and pterosaurs evolved among diverse precursors, pp. 589-594 in Nature 620 (7974) on page 599, DOI: 10.1038/s41586-023-06359-z, http://zenodo.org/record/826309
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
FIGURE 22 in A new aetosaur from the Upper Triassic of the Santa Maria Formation, southern Brazil
Full text linkFIGURE 22. Left ilium of Polesinesuchus aurelioi holotype (ULBRAPVT003) in A, dorsal view; B, ventral view; C, lateral view and D, medial view. Abbreviations: ap, anterior process; ac, acetabulum; ptp; posterior process; sac, supra acetabular crest. Scale bar equals 10mm.Published as part of Roberto-Da-Silva, Lúcio, Desojo, Julia B., Cabreira, Sérgio F., Aires, Alex S. S., Müller, Rodrigo T., Pacheco, Cristian P. & Dias-Da-Silva, Sérgio, 2014, A new aetosaur from the Upper Triassic of the Santa Maria Formation, southern Brazil, pp. 240-278 in Zootaxa 3764 (3) on page 262, DOI: 10.11646/zootaxa.3764.3.1, http://zenodo.org/record/25176
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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