1,721,108 research outputs found
Hygrobates gangeticus Pesic, Kumar & Kumar 2007
No full textHygrobates gangeticus Pesic, Kumar & Kumar, 2007: 162 — Holotype male (MNHP), freshwater, Gange river near Haridwar City, Uttaranchal State, India.Published as part of LIU, DONG, YI, TIAN-CI, XU, YUN & ZHANG, ZHI-QIANG, 2013, new mite species described during 2007 to 2012 3663, pp. 1-102 in Zootaxa 3663 (1) on page 20, DOI: 10.11646/zootaxa.3663.1.1, http://zenodo.org/record/563059
Atractides garhwali Pesic, Kumar & Kumar 2007
No full textAtractides garhwali Pesic, Kumar & Kumar, 2007: 162 — Holotype female (MNHP), freshwater, a tributary of Alaknanda River, Dhundeshwargad stream, Garhwal Himalayas, Uttaranchal State, India.Published as part of LIU, DONG, YI, TIAN-CI, XU, YUN & ZHANG, ZHI-QIANG, 2013, new mite species described during 2007 to 2012 3663, pp. 1-102 in Zootaxa 3663 (1) on page 20, DOI: 10.11646/zootaxa.3663.1.1, http://zenodo.org/record/563059
Sperchon (Hispidosperchon) garhwalensis Kumar, Kumar & Pesic 2007
No full textSperchon (Hispidosperchon) garhwalensis Kumar, Kumar & Pesic, 2007 Figure B (1–11) Material examined. One male and two females, China, Hubei Province, Shennongjia National Nature Reserve, unnamed stream (N 31 ° 27 ' 18 '', E 110 ° 23 ' 39 ''), 19 August 2009, leg. Cheng-Shuai Xu, altitude 1188m. One male and one female were dissected and slide-mounted. Description. Male: Body oval in shape, 500 in length, 450 in width. Cuticle yellow in colour, covered with very fine spinules arranged in hexagonal pattern (Fig. B- 3). A 1 short and plumose, other dorsal setae thin and long. Chitinous plates and glandular plates on both dorsum and venter well developed as illustrated in Fig. B- 1 and Fig. B- 2. One pair of chitinous plates between D 1 and D 2 on dorsum fused. Coxae in four groups, surface of coxae reticulated. ACG 170 in length, close to each other but not fused, and with weakly developed apodeme. E 2 on the lateral interval between ACG and PCG. PCG 175 in length, widely separated. E 4 close to anterior margin of CxIII. Distance between anterior end of ACG and posterior end of PCG 310. Genital field between PCG. Genital valves not covering the genital acetabula, 140 in length, 110 in width. One small platelet in front of genital field. Pre- and postgentital sclerites not developed. Three pairs of genital acetabula in parallel rows, the two anterior pairs elliptic and the posterior pair more or less rounded. A single platelet close to the line between V 1 and posterior to the genital area. V 1 on sclerites in medium size and without accompanying glandularia. Excretory pore slightly posterior to the line between V 2, and surrounded by a well developed sclerotized ring. Capitulum with a long rostrum, 163 in length. Chelicera total length 164, basal segment length 119, claw length 45, and the ratio of basal segment/claw length 2.6. Dorsal lengths of the palpal segments: P-I, 21; P-II, 87; P-III, 115; P-IV, 100; P-V, 25. P-I without seta. P-II with a long ventrodistal projection bearing a long seta and a short seta. About seven short setae on the lateral and dorsal side of P-II, none of them plumose. The ventral side of P-III straight and without seta, but the lateral and dorsal with three short smooth setae, one of them almost at one-thirds laterally and others at distal end. P-IV shorter than P-III. The venter of P-IV with two small peg-like setae and two normal thin setae, the proximal peg-like seta approximately at the middle and the distal one near to terminal end of the segment. Dorsal lengths of leg I: I- L- 1, 40; I-L- 2, 50; I-L- 3, 55; I-L- 4, 105; I-L- 5, 95; I-L- 6, 100. Dorsal lengths of leg IV: IV-L- 1, 65; IV-L- 2, 75; IV-L- 3, 90; IV-L- 4, 195; IV-L- 5, 165; IV-L- 6, 160. The dorsal of I-IV- 3-5 with long plumose setae in longitudinal rows (Fig. B- 9). Ambulacrum with two claws. Each claw with claw blade well protruding, bearing a long dorsal and a shorter ventral clawlet. Female: Color, body shape, and the decorations of cuticle as in the male, morphological characters of the genital field and the size of dorsalia and ventralia different from the male. Body 730 in length, 680 in width. ACG 225 in length, PCG 235 in length. Distance between anterior end of ACG and posterior end of PCG 420. Gential field 175 in length, 155 in width. Pregentital sclerite well developed. Gnathosoma length 211. Chelicera total length 225, basal segment length 165, claw length 60, ratio of basal segment/claw length 2.8. Dorsal lengths of the palpal segments: P-I, 30; P-II, 153; P-III, 175; P-IV, 141; P-V, 39. Dorsal lengths of leg I: I-L- 1, 55; I-L- 2, 75; I-L- 3, 70; I-L- 4, 115; I-L- 5, 120; I-L- 6, 110. Dorsal lengths of leg IV: IV-L- 1, 100; IV- L- 2, 110; IV-L- 3, 125; IV-L- 4, 210; IV-L- 5, 230; IV-L- 6, 195. Remarks. S. garhwalensis was described from India by Kumar, Kumar & Pesic in 2007 (Kumar et al. 2007). But in their original description, only female was described and it’s taxonomic status of the subgenus was not given. It is the first report with the first description of the male from China. The features of both male and female examined well coincide with the characteristic of the subgenus Hispidosperchon, so it should be placed in this subgenus. The decorations of cuticle, E 4 on CxIII, P- 4 shorter than P- 3 and excretory pore with a sclerotized ring in the females from China show a general conformity with S. garhwalensis Kumar, Kumar & Pesic, 2007 from India. Some differences in the body size and the number of the plates on the dorsum and venter should be regarded as the variety between the different geographical populations. FIGURE B (1–9). Sperchon (Hispidosperchon) garhwalensis, Male. 1. idiosoma, dorsal view; 2. idiosoma, ventral view; 3. decorations of cuticle; 4. capitulum; 5. chelicera; 6. palp; 7. IV-L- 1 -6. 8. claw 9. dorsal seta of IV-L- 4. FIGURE B (10–11). Sperchon (Hispidosperchon) garhwalensis, Female. 10. idiosoma, dorsal view; 11. idiosoma, ventral view.Published as part of Zhang, Xu & Jin, Dao-Chao, 2010, Three new species and one new record of the subgenus Hispidosperchon Thor, 1901 within the genus Sperchon Kramer, 1877 from China (Acari: Sperchontidae), pp. 14-24 in Zootaxa 2684 on pages 18-20, DOI: 10.5281/zenodo.19939
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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