1,721,004 research outputs found
Figure 4 in Reassessing the phylogeny and divergence times of sloths (Mammalia: Pilosa: Folivora), exploring alternative morphological partitioning and dating models
No full textFigure 4. Selected trees, with node supports (Poisson boostrap and posterior probabilities), depicting the overall variation in topologies obtained. A, parsimony IW100. B, parsimony IW5. C, Bayesian UN_p. D, Bayesian IW100_e. All topologies and branch lengths for Bayesian trees are available in the Supporting Information (File S9).Published as part of Casali, Daniel M, Boscaini, Alberto, Gaudin, Timothy J & Perini, Fernando A, 2022, Reassessing the phylogeny and divergence times of sloths (Mammalia: Pilosa: Folivora), exploring alternative morphological partitioning and dating models, pp. 1505-1551 in Zoological Journal of the Linnean Society 196 (4) on page 1517, DOI: 10.1093/zoolinnean/zlac041, http://zenodo.org/record/738123
Thinobadistini
No full textThinobadistini PP = 81, age = 9.38 Mya (7.52–11.26). The clade is composed of Thinobadistes and Lestobradys and was recovered in all analyses, with the exception of par_EW. Thinobadistini was supported by a single synapomorphy, obtained with both methods: the presence of a diastema between Mf1 and Mf2.Published as part of Casali, Daniel M, Boscaini, Alberto, Gaudin, Timothy J & Perini, Fernando A, 2022, Reassessing the phylogeny and divergence times of sloths (Mammalia: Pilosa: Folivora), exploring alternative morphological partitioning and dating models, pp. 1505-1551 in Zoological Journal of the Linnean Society 196 (4) on page 1524, DOI: 10.1093/zoolinnean/zlac041, http://zenodo.org/record/738123
Nothrotheriinae
No full textNothrotheriinae plus Megatheriinae PP = 54, age = 17.96 Mya (16.39–19.87). This clade, which unites the clades Nothrotheriinae and Megatheriinae, was recovered only for H models and par_IW10 and par IW5, as stated above, and was poorly supported. The clade was supported by four synapomorphies, recovered with both methods: presence of lingual and labial grooves in mf3; temporal lines approximate midline but do not meet to form a sagittal crest on skull roof; well-developed buccinator fossa of maxilla, with a deep depression; and Glaserian fissure opening into a distinct groove in squamosal lying medial to entoglenoid process.Published as part of Casali, Daniel M, Boscaini, Alberto, Gaudin, Timothy J & Perini, Fernando A, 2022, Reassessing the phylogeny and divergence times of sloths (Mammalia: Pilosa: Folivora), exploring alternative morphological partitioning and dating models, pp. 1505-1551 in Zoological Journal of the Linnean Society 196 (4) on page 1529, DOI: 10.1093/zoolinnean/zlac041, http://zenodo.org/record/738123
Nematheriinae
No full textNematheriinae PP = 100, age = 18.60 Mya (16.85–20.28). This clade contains the genera Nematherium and Analcitherium, and was recovered in all analyses performed in this study. Nematheriinae was supported by seven synapomorphies, all recovered with both methods: anteroposteriorly ovate Mf4 cross-section; snout depressed anteriorly; external nares not greatly enlarged; absence of pterygoid inflation; presence of lacrimal eminence; presence of prominent lateral walls in lacrimal foramen; and jugal and lacrimal anteriorly overlapping facial portion of maxilla.Published as part of Casali, Daniel M, Boscaini, Alberto, Gaudin, Timothy J & Perini, Fernando A, 2022, Reassessing the phylogeny and divergence times of sloths (Mammalia: Pilosa: Folivora), exploring alternative morphological partitioning and dating models, pp. 1505-1551 in Zoological Journal of the Linnean Society 196 (4) on page 1523, DOI: 10.1093/zoolinnean/zlac041, http://zenodo.org/record/738123
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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