1,721,084 research outputs found
Walchia (Walchia) xishaensis Zhao, Tang and Mo 1986
No full textWalchia (Walchia) xishaensis Zhao, Tang and Mo, 1986: PALPublished as part of Nielsen, David H., Robbins, Richard G. & Rueda, Leopoldo M., 2021, Annotated world checklist of the Trombiculidae and Leeuwenhoekiidae (1758 - 2021) (Acari: Trombiculoidea), with notes on nomenclature, taxonomy, and distribution, pp. 1-243 in Zootaxa 4967 (1) on page 40, DOI: 10.11646/zootaxa.4967.1.1, http://zenodo.org/record/474551
Microphysogobio wulonghensis Xing, Zhao, Tang & Zhang 2011
No full textMicrophysogobio wulonghensis Xing, Zhao, Tang & Zhang, 2011 (Fig. 28) Holotype. 176476 (15654), Wulonghe River, Laiyang, Shandong Province, P. R. China, May 3, 1929. Paratypes. 43503 (15654), 176473-176475 (15654), 176477-176486 (15654), collected with holotype.Published as part of Ye, Enqi, Xing, Yingchun, Zhang, Chunguang & Zhao, Yahui, 2015, Catalogue of the type specimens in the fish collection of the National Zoological Museum, Institute of Zoology, Chinese Academy of Sciences, Beijing, China, pp. 10-113 in Zootaxa 3962 (1) on page 37, DOI: 10.11646/zootaxa.3962.1.4, http://zenodo.org/record/23383
Sphaerobulbus ningliei Zhao & Tang 2020, sp. nov.
No full textSphaerobulbus ningliei sp. nov. (Figs 5, 6, 19–23) Type material. HƟĿƟŦYPൾ: CHINA: YUNNAN: ³, glued on a card with labels as follows: “China: Yunnan Prov. Binchuan County, Jizu Shan, 25°57′41.76″N 100°23′36.38″E, alt. 3000 m, 16. VII.2010, Liang Tang leg.” “ Holotype / Sphaerobulbus ningliei / Zhao & Tang” [red handwritten label] (SHNU). Description. Measurements of male: BL: 14.2 mm, FL: 7.7 mm. HL: 2.06 mm, HW: 2.18 mm, EYL: 0.59 mm, TL: 1.00 mm, PL: 2.88 mm, PW: 2.55 mm, EL: 2.89 mm, EW: 2.95 mm. HW/HL: 1.05, TL/EYL: 1.69, PL/PW: 1.13, EL/EW: 0.98. Body entirely blackish with metallic blue tint,appendages reddish except mid and hind coxae darker. Head 1.05 times as wide as long, rounded quadrangular, posterior angles entirely rounded, tempora longer than eyes (ratio 1.69), disc with punctation well delimited on middle portion and more or less confluent on lateral portions, posterior half of head with impunctate midline, interstices densely reticulated, about equal to diameter of punctures on midanterior portion and mostly narrower than half diameter of punctures on the remaining portions. Pronotum 1.13 times as long as wide, widest at about basal third, disc with complete impunctate midline, punctation confluent, interstices reticulated, narrower than half diameter of punctures; scutellum with black pubescence, finely and densely punctate. Elytra 0.98 times as long as wide and as long as pronotum; punctation fine and dense, interstices slightly dull with coarse granulose microsculpture. Abdomen semi-cylindrical, posterior margin of tergite VII with palisade fringe; posterior basal line of abdominal tergites III–V distinctly bisinuate, median impression after posterior basal line relatively shallow; punctation dense and fine, interstices reticulated. Male. Sternite VIII emarginate at middle of posterior margin; sternite IX (Fig. 19) emarginate medioapically; tergite X(Fig. 20) subtriangular with apex obtusely pointed. Aedeagus (Fig. 21) with median lobe asymmetrical, apical portion hook-like and pointing to left side in ventral view, paramere slightly asymmetrical, slightly shorter than median lobe, underside of paramere (Figs 22, 23) with a few sensory peg seta in apical portion and one degenerated sensory peg seta at middle of subapical portion. Female. Unknown. Differential diagnosis. The new species is similar to S. cardinalis Smetana, 2010 from Sichuan and Yunnan, but can be distinguished from the latter by the posterior angles of the head being rounded (slightly prominent in S. cardinalis), the posterior half of the head with the impunctate midline broad (narrow in S. cardinalis), the apical portion of the aedeagal median lobe hook-like, and the underside of the paramere with sparser sensory peg setae. Both species seem to differ also in the degree of metallic tint in some cases (compare Figs 5 and 26), but this character seems to be variable in S. cardinalis which can also exhibit a bluish-purple tint (A. Smetana, pers. comm. 2020) and the coloration is hence not useful as a diagnostic character. The new species is also a little similar to S. smetanai described above in coloration, but it can be distinguished by the head with an impunctate midline, the elytra distinctly longer, and the abdomen distinctly darker in coloration. Etymology. This species is named in honor of Mr. Lie Ning who accompanied the second author during the collecting trip. Distribution. China (Yunnan).Published as part of Zhao, Xin & Tang, Liang, 2020, Three new species of the genus Sphaerobulbus from China (Coleoptera: Staphylinidae), pp. 333-341 in Acta Entomologica Musei Nationalis Pragae 60 (1) on pages 337-338, DOI: 10.37520/aemnp.2020.019, http://zenodo.org/record/387994
FIGURE 2 in Heteroradulum yunnanensis sp. nov. (Auriculariales, Basidiomycota) evidenced by morphological characters and phylogenetic analyses in China
No full textFIGURE 2. Basidiomata of Heteroradulum yunnanensis (holotype). Bars: A = 2 cm, B = 2 mm.Published as part of Guan, Qian-Xin, Liu, Chao-Mao, Zhao, Tang-Jie & Zhao, Chang-Lin, 2020, Heteroradulum yunnanensis sp. nov. (Auriculariales, Basidiomycota) evidenced by morphological characters and phylogenetic analyses in China, pp. 51-59 in Phytotaxa 437 (2) on page 54, DOI: 10.11646/phytotaxa.437.2.1, http://zenodo.org/record/558588
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
Sphaerobulbus Zhao & Tang 2020
No full textKey to species of Sphaerobulbus The key is based on species descriptions provided by SMൾŦANA (2003, 2005, 2006, 2010, 2016) and the photographs of all species from Smetana’s collection taken by the second author in 2012. 1 Elytra about as-long-as or longer than pronotum, EL/ PL=0.99–1.1; abdominal tergites VII with apical palisade fringe..................................................................... 2 – Elytra shorter than pronotum, EL/PL=0.77–0.90; abdominal tergites VII without apical palisade fringe......................................................................................... 6 2 Abdominal tergites III–V each with deep median impression delimited by two short oblique carinae and posterior basal line; body without bluish tint.......... 3 – Abdominal tergites III–V each without deep median impression and two short oblique carinae; body with bluish tint..................................................................... 5 3 Pronotum as long as wide, PL/PW=1.00; subhumeral portion of each elytron with gold tomentose pubescence, abdominal tergites VI and VII each with medi- an golden tomentose patch. Habitus: Fig. 36. Aedeagus: SMETANA (2006: Figs 8–10). China (Shaanxi).................................................. S. ornatus Smetana, 2006 – Pronotum distinctly longer than wide, PL/PW=1.21– 1.30; elytra and abdominal tergites without gold tomentose pubescence or patch..................................... 4 4 Head as wide as long, HW/HL=1.00; paramere asymmetrical, underside of paramere with three degenerated sensory peg setae in apical portion. Habitus: Fig. 34. Aedeagus: SMETANA (2005: Figs 5–7). China (Shaanxi, Hubei, Sichuan, Guizhou?).................................................................... S. rex Smetana, 2005 – Head a little wider than long, HW/HL=1.08; paramere almost symmetrical, underside of paramere with five degenerated sensory peg setae in subapical portion. Habitus: Figs 3, 4. Aedeagus: Figs 15–17. China (Guangxi).............................. S. guangxiensis sp. nov. 5 Posterior angles of head rounded; posterior half of head with broad impunctate midline; apical portion of aedeagal median lobe hook-like; underside of paramere with sparse sensory peg setae. Habitus: Figs 5, 6. Aedeagus: Figs 19–23. China (Yunnan)............................................................................ S. ningliei sp. nov. – Posterior angles of head slightly prominent; posterior half of head with narrow impunctate midline; apical portion of aedeagal median lobe straightly pointed apicad; underside of paramere with dense sensory peg setae. Habitus: Fig. 26. Aedeagus: SMETANA (2010: Figs 3, 4). China (Sichuan, Yunnan).......................................................... S. cardinalis Smetana, 2010 6 Forebody metallic blue. Habitus: Figs 1, 2. Aedeagus: Figs 7–12. China (Sichuan)......................................................................................... S. smetanai sp. nov. – Forebody blackish (head and pronotum with dark blue hue in S. davidi)................................................... 7 7 Abdominal tergites VI and VII each with median golden tomentose patch.................................................... 8 – Abdominal tergites VI and VII each without median golden tomentose patch........................................... 10 8 Larger species, BL= 26 mm. Aedeagus: SMETANA (2016: Figs 7, 8). China (Guangxi)............................................................................ S. thomasi Smetana, 2016 – Smaller species, BL= 14–16 mm................................. 9 9 Elytra much shorter than wide, EL/EW=0.75; elytra reddish brown. Habitus: Fig. 29. Aedeagus: SMETANA (2006, Figs 3–5). China (Yunnan)....................................................................... S. biplagiatus Smetana, 2006 – Elytra shorter than wide, EL/EW=0.86; elytra blackish. Habitus: Fig. 30. Aedeagus: SMETANA (2003: Figs 32–34). China (Yunnan)............................................................................................ S. brezinai Smetana, 2003 10 Smaller species, BL= 9–10.5 mm; posterior margin of abdominal segment VII and entire abdominal segments VIII–X reddish yellow. Habitus: Fig. 32. Aedeagus: SMETANA (2005: Figs 10–12). China (Sichuan).................................................. S. pusio Smetana, 2005 – Larger species, BL= 12.5–20 mm; entire abdominal segments VII–X blackish......................................... 11 11 Median impression of abdominal tergites III–V relatively deeper, laterally delimited by two short oblique carinae. Habitus: Fig. 25. Aedeagus: SMETANA (2003: Figs 22–25). China (Yunnan, Sichuan)................................................................ S. bisinuatus Smetana, 2003 – Median impression of abdominal tergites III–V shallower or indistinct, laterally without two short oblique carinae.......................................................... 12 12 Legs reddish............................................................... 13 – Legs blackish.............................................................. 16 13 Posterior half of head with impunctate midline; punctation of head and pronotum mostly very dense and well delimited, interstices smooth and ridge-like. Ha- bitus: Fig. 28. Aedeagus: SMETANA (2005: Figs 20–22). China (Sichuan).................. S. bicolor Smetana, 2005 – Posterior half of head without impunctate midline; punctation of head and pronotum mostly less dense and slightly confluent, interstices microsculptured and not ridge-like..................................................... 14 14 Head wider than long, HW/HL=1.11. Aedeagus: SMETANA (2016: Figs 3, 4). China (Yunnan).............................................................. S. radani Smetana, 2016 – Head much wider than long, HW/HL=1.31......... 15 15 Midanterior portion of head with sparse punctation; pronotum with broad impunctate midline; posterior basal line of abdominal tergites IV and V bisinuate. Habitus: Fig. 33. Aedeagus: SMETANA (2005: Figs 3–5). China (Sichuan)............................................................................................. S. nagahatai Smetana, 2005 – Midanterior portion of head with dense punctation; pronotum with narrow impunctate midline; posteri- or basal line of abdominal tergites IV and V simple. Habitus: Fig. 37. Aedeagus: SMETANA (2003: Figs 27, 28). China (Yunnan)......................................................................................... S. yulongmontis Smetana, 2003 16 Head and pronotum with dark blue hue; interstices of head and pronotum smooth. Aedeagus: SMETANA (2016, Figs 11–13). China (Yunnan)........................................................................... S. davidi Smetana, 2016 – Head and pronotum without dark blue hue; interstices of head and pronotum microsculptured......... 17 17 Superior and inferior lines of pronotal hypomeron widely separated at anterior angle.......................... 18 – Superior and inferior lines of pronotal hypomeron joined at anterior angle............................................. 19 18 Pronotum with punctation mostly well delimited and interstices even. Habitus: Fig. 31. Aedeagus: SMETA- NA (2003: Figs 82–84). China (Qinghai, Yunnan, Xizang).................................. S. nigrita (Smetana, 2003) – Pronotum with punctation mostly confluent and interstices bumpy. Habitus: Fig. 24. Aedeagus: SMETA- NA (2003: Figs 90, 91). China (Xizang)................................................................... S. alpinus (Smetana, 2003) 19 Sternite 9 with posterior margin deeply emarginate; median lobe of aedeagus less acute at apex, paramere wider. Habitus: Fig. 35. Aedeagus: SMETANA (2003: Figs 37 –39). China (Yunnan)................................................................................. S. yunnanus Smetana, 2003 – Sternite 9 with posterior margin shallowly emarginate; median lobe of aedeagus acute at apex, paramere narrower. Habitus: Fig. 27. Aedeagus: SMETANA (2003: Figs 41, 42). China (Yunnan).......................................................................... S. murzini Smetana, 2003Published as part of Zhao, Xin & Tang, Liang, 2020, Three new species of the genus Sphaerobulbus from China (Coleoptera: Staphylinidae), pp. 333-341 in Acta Entomologica Musei Nationalis Pragae 60 (1) on pages 338-341, DOI: 10.37520/aemnp.2020.019, http://zenodo.org/record/387994
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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