1,721,108 research outputs found
Description of adults and larvae of Orientelmis parvula (Nomura & Baba, 1961) (Coleoptera: Elmidae) with their molecular phylogenetic analysis
No full textHayashi, Masakazu, Yoshitomi, Hiroyuki, Kamite, Yuuki, Kobayashi, Takuya, Sota, Teiji (2019): Description of adults and larvae of Orientelmis parvula (Nomura & Baba, 1961) (Coleoptera: Elmidae) with their molecular phylogenetic analysis. Zootaxa 4568 (3): 483-500, DOI: 10.11646/zootaxa.4568.3.
FIGURE 3 in Description of adults and larvae of Orientelmis parvula (Nomura & Baba, 1961) (Coleoptera: Elmidae) with their molecular phylogenetic analysis
No full textFIGURE 3. Male (A–F) and female (G–J) genitalia of Orientelmis parvula (Nomura & Baba). A, G, tergite VIII; B, H, sternite VIII; C, sternite IX; D–F, aedeagus in dorsal (D), ventral (E), and lateral (F) views; I, ovipositor; J, stylus and distal part of coxite.Published as part of Hayashi, Masakazu, Yoshitomi, Hiroyuki, Kamite, Yuuki, Kobayashi, Takuya & Sota, Teiji, 2019, Description of adults and larvae of Orientelmis parvula (Nomura & Baba, 1961) (Coleoptera: Elmidae) with their molecular phylogenetic analysis, pp. 483-500 in Zootaxa 4568 (3) on page 489, DOI: 10.11646/zootaxa.4568.3.4, http://zenodo.org/record/260168
FIGURE 16 in Description of larvae of genera Stenelmis, Ordobrevia and Nomuraelmis (Coleoptera: Elmidae: Elminae) of Japan with their molecular taxonomy
No full textFIGURE 16. Stenelmis canaliculata (Gyllenhal) from Austria (A–C) and Ordobrevia nubifer (Fall) from USA (D–F). A, D, dorsal view; B, E, lateral view; C, F, ventral view. All scale bars are 1.0 mm.Published as part of Hayashi, Masakazu, Kamite, Yuuki, Kobayashi, Takuya & Sota, Teiji, 2016, Description of larvae of genera Stenelmis, Ordobrevia and Nomuraelmis (Coleoptera: Elmidae: Elminae) of Japan with their molecular taxonomy, pp. 451-480 in Zootaxa 4178 (4) on page 476, DOI: 10.11646/zootaxa.4178.4.1, http://zenodo.org/record/26098
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
Ordobrevia nubifer Fall 1901
No full textOrdobrevia nubifer (Fall, 1901) (Figs 16 D–F, 18) Material examined. USA: California: 3 exs. (in ethanol) and 2 exs. (dried with an ultrathin coating of gold), Trinity Co.: 2 mi S Weaveryille, Weaver Creek, 14.VII.1988, W. D. Shepard leg. Description. Body elongate, gradually narrowing from middle to apex; convex dorsally and flattened ventrally; slightly prominent spiracles on mesothorax and abdominal segments I–VIII. Body color entirely orange, and appendages orange. Dorsal and ventral surfaces entirely smooth, dorsum with long simple setae and long brush-like setae. Head visible from above, well exposed from prothorax; as wide as long; clypeus transverse, with setae on front; a pair of small spines on both sides of clypeus; vertex smooth with brush-like setae. Thorax not serrated on sides; dorsum entirely smooth with long brush-like setae. Prothorax longer than width, 2.2 times as long as mesothorax; with 3 ventral sclerites, procoxae closed posteriorly; branched setae on hind margins. Meso- and metathorax transverse; metathorax longer than mesothorax. Mesothorax with five ventral sclerites. Abdomen 9-segmented; segments I–VIII transverse, dorsal surface entirely smooth with brush-like setae; pleural sclerites on segments I–VII. Brush-like setae on hind margin of segments I–VIII. Three to five teeth on lateral hind margin of segments I–VIII; tergal sutures on dorso-lateral area lacking. Last segment (segment IX) longer than wide, gradually narrowing to apex, without longitudinal ridge, apex with a pair of spines; dorsal surface smooth; ventral operculum, opercular claws, and anal gills present. Identification. The larvae examined in this study were identified by W.D. Shepard. Distribution. North America. Bibliography. Sanderson (1953, 1954).Published as part of Hayashi, Masakazu, Kamite, Yuuki, Kobayashi, Takuya & Sota, Teiji, 2016, Description of larvae of genera Stenelmis, Ordobrevia and Nomuraelmis (Coleoptera: Elmidae: Elminae) of Japan with their molecular taxonomy, pp. 451-480 in Zootaxa 4178 (4) on pages 476-479, DOI: 10.11646/zootaxa.4178.4.1, http://zenodo.org/record/26098
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
Stenelmis canaliculata Gyllenhal 1808
No full textStenelmis canaliculata (Gyllenhal, 1808) (Figs 16 A–C, 17) Material examined. AUSTRIA: 1 ex. (dried with an ultrathin coating of gold), Upper Autria, Seeache (River), near Mondsee. Description. Body elongate, gradually narrowing from middle to apex; convex dorsally and flattened ventrally; slightly prominent spiracles on mesothorax and abdominal segments I–VIII. Body color entirely reddish brown, and appendages reddish brown. Dorsal and ventral surfaces not smooth with minute granules and setae, but last segment smooth on dorsal and ventral surfaces. Head visible from above, well exposed from prothorax; as wide as long; clypeus transverse, with setae on front; a pair of spines on both sides of clypeus; vertex with granules and brush-like setae. Thorax not serrated on sides; dorsum with granules and brush-like setae, not entirely smooth. Prothorax longer than width, 2.5 times as long as mesothorax; glabrous spots on basal half; with three ventral sclerites, procoxae closed posteriorly; scale-like setae on hind margins. Meso- and metathorax transverse; metathorax longer than mesothorax. Mesothorax with five ventral sclerites. Abdomen 9-segmented; segments I–VIII transverse, dorsal surface entirely not smooth with minute granules and setae, brush-like and plumose setae; pleural sclerites on segments I–VII; tergal sutures on dorso-lateral area of segments II–VII but short in VII. Last segment (segment IX) longer than wide, gradually narrowing to apex, without longitudinal ridge, apex with a pair of spines; dorsal surface smooth but with ramose setae; ventral operculum, opercular claws, and anal gills present. Identification. The larva examined in this study was identified by M.A. Jäch. Distribution. Europe. Bibliography. Holland (1972).Published as part of Hayashi, Masakazu, Kamite, Yuuki, Kobayashi, Takuya & Sota, Teiji, 2016, Description of larvae of genera Stenelmis, Ordobrevia and Nomuraelmis (Coleoptera: Elmidae: Elminae) of Japan with their molecular taxonomy, pp. 451-480 in Zootaxa 4178 (4) on page 474, DOI: 10.11646/zootaxa.4178.4.1, http://zenodo.org/record/26098
- …
