1,720,966 research outputs found
FIGURE 4 in Resurrection of the genus Similisinocarum (Apiaceae) based on evidence from morphology and ITS sequences
No full textFIGURE 4. Types of Similisinocarum normanianum. A. Holotype; B. Isotype.Published as part of Guo, Xian-Lin, Price, Megan, Gou, Wei, Zhou, Song-Dong, Gao, Xin-Fen & He, Xing-Jin, 2021, Resurrection of the genus Similisinocarum (Apiaceae) based on evidence from morphology and ITS sequences, pp. 127-137 in Phytotaxa 497 (2) on page 134, DOI: 10.11646/phytotaxa.497.2.5, http://zenodo.org/record/542389
FIGURE 2 in Resurrection of the genus Similisinocarum (Apiaceae) based on evidence from morphology and ITS sequences
No full textFIGURE 2. Boxplots showing the genetic distances within and among Acronema, Oreocomopsis, Similisinocarum, Sinocarum and Pternopetalum. Congeneric variation is colored orange and heterogeneric variation is green.Published as part of Guo, Xian-Lin, Price, Megan, Gou, Wei, Zhou, Song-Dong, Gao, Xin-Fen & He, Xing-Jin, 2021, Resurrection of the genus Similisinocarum (Apiaceae) based on evidence from morphology and ITS sequences, pp. 127-137 in Phytotaxa 497 (2) on page 131, DOI: 10.11646/phytotaxa.497.2.5, http://zenodo.org/record/542389
FIGURE 1 in Resurrection of the genus Similisinocarum (Apiaceae) based on evidence from morphology and ITS sequences
No full textFIGURE 1. Bayesian tree of Similisinocarum normanianum (bold) and related species of Acronema clade in Apiaceae inferred by ITS sequences. Numbers above and below branches indicate maximum likelihood bootstrap (bold) and Bayesian posterior probability, respectively.Published as part of Guo, Xian-Lin, Price, Megan, Gou, Wei, Zhou, Song-Dong, Gao, Xin-Fen & He, Xing-Jin, 2021, Resurrection of the genus Similisinocarum (Apiaceae) based on evidence from morphology and ITS sequences, pp. 127-137 in Phytotaxa 497 (2) on page 130, DOI: 10.11646/phytotaxa.497.2.5, http://zenodo.org/record/542389
FIGURE 4 in Phylogeny and taxonomy of Meeboldia, Sinodielsia and their relatives (Apiaceae: Apioideae) inferred from nrDNA ITS, plastid DNA intron (rpl16 and rps16) sequences and morphological characters
No full textFIGURE 4. Mericarp morphology of Meeboldia yunnanensis, S. microloba, S. thibetica, Tongoloa zhongdianensis and Hymenidium apiolens (a–c, d–f, g–i, j–l and m–o). Fruit views are dorsal side, commissural side and transverse section for each row from left to right. Scale bars are 1 mm. Terminologies followed Kljuykov et al. (2004). cv = commissural vittae; lr = lateral rib; mar = marginal rib; mer = median rib; vv = vallecular vittae.Published as part of Gou, Wei, Guo, Xian-Lin, Zhou, Song-Dong & He, Xing-Jin, 2021, Phylogeny and taxonomy of Meeboldia, Sinodielsia and their relatives (Apiaceae: Apioideae) inferred from nrDNA ITS, plastid DNA intron (rpl16 and rps16) sequences and morphological characters, pp. 121-142 in Phytotaxa 482 (2) on page 133, DOI: 10.11646/phytotaxa.482.2.2, http://zenodo.org/record/541887
Semenovia brunonis X. L. Guo, Q. Y. Xiao & X. J. He 2023, com. nov.
No full textSemenovia brunonis (DC.) X.L.Guo, Q.Y.Xiao & X.J.He com. nov. (Fig.3, 4) Basionym: Tordyliopsis brunonis DC. (1830: 199) Taxonomic synonym: Heracleum brunonis (DC.) C. B. Clarke (1879: 713) Type: INDIA. In Kamaon Nepaliae versus Emodum, Blinkworth 590 (lectotype: G-DC, designated by Watson (1998); isolectotypes: BM000944789, BM000944790, E00002937, K000075516, K000075517). Recognition: Semenovia brunonis is characterized by having oblong-ovate ultimate segments with irregularly serrate margin and acute apex, rays with densely softly pubescent, lanceolate-acuminate bracts and bracteoles, elliptic or oblong and pubescent mericarps with well-developed marginal ribs, unobvious medium and lateral ribs, clavate vittae, and domed stylopodium. Distribution and habitat: One population of Semenovia brunonis was detected in Yadong County in Xizang, China. Further, it was also found in Nepal, Bhutan, and India. S. brunonis usually inhabits an alpine bush at an altitude of ca. 4200 m in China.Published as part of Guo, Xian-Lin, Xiao, Qun-Ying, Gou, Wei, Zhou, Song-Dong & He, Xing-Jin, 2023, Morphological and phylogenetic evidence for the transfer of the monotypic genus Tordyliopsis to Semenovia (Apiaceae), pp. 63-72 in Phytotaxa 597 (1) on page 70, DOI: 10.11646/phytotaxa.597.1.7, http://zenodo.org/record/791881
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Get PDFWe 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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