1,720,970 research outputs found
The flat-footed fly genus Seri Kessel & Kessel (Diptera: Platypezidae)
No full textCumming, Jeffrey M., Cumming, Heather J. (2011): The flat-footed fly genus Seri Kessel & Kessel (Diptera: Platypezidae). Zootaxa 3136: 61-68, DOI: 10.5281/zenodo.27951
Additional DNA barcodes confirm recent morphological species concepts and synonymies in Callomyia Meigen (Diptera: Platypezidae)
No full textCumming, Jeffrey M., Cumming, Heather J. (2019): Additional DNA barcodes confirm recent morphological species concepts and synonymies in Callomyia Meigen (Diptera: Platypezidae). Zootaxa 4712 (2): 296-298, DOI: 10.11646/zootaxa.4712.2.
FIGURES 29−32. Callomyia females, lateral view. 29. C. gilloglyorum. 30. C. proxima. 31. C. velutina. 32. C in Revision of the Nearctic species of Callomyia Meigen (Diptera: Platypezidae) and phylogeny of the genus
No full textFIGURES 29−32. Callomyia females, lateral view. 29. C. gilloglyorum. 30. C. proxima. 31. C. velutina. 32. C. venusta.Published as part of Cumming, Heather J. & Wheeler, Terry A., 2016, Revision of the Nearctic species of Callomyia Meigen (Diptera: Platypezidae) and phylogeny of the genus, pp. 501-554 in Zootaxa 4111 (5) on page 518, DOI: 10.11646/zootaxa.4111.5.1, http://zenodo.org/record/27147
FIGURE 1 in Additional DNA barcodes confirm recent morphological species concepts and synonymies in Callomyia Meigen (Diptera: Platypezidae)
No full textFIGURE 1. Neighbour-Joining tree of 30 Callomyia specimens and two outgroup specimens with COI sequences ≥550 bp, including sex, unique voucher number, sequence length, geographic locality and GenBank number. Bracketed species names are the current species concepts used in Cumming & Wheeler (2016) and include Nearctic synonyms and misidentifications (shown on branch terminals) that are found in Kessel & Buegler (1972).Published as part of Cumming, Jeffrey M. & Cumming, Heather J., 2019, Additional DNA barcodes confirm recent morphological species concepts and synonymies in Callomyia Meigen (Diptera: Platypezidae), pp. 296-298 in Zootaxa 4712 (2) on page 297, DOI: 10.11646/zootaxa.4712.2.9, http://zenodo.org/record/399958
FIGURE 71 in Revision of the Nearctic species of Callomyia Meigen (Diptera: Platypezidae) and phylogeny of the genus
No full textFIGURE 71. Known distribution of C. arnaudi, C. bertae, and C. browni.Published as part of Cumming, Heather J. & Wheeler, Terry A., 2016, Revision of the Nearctic species of Callomyia Meigen (Diptera: Platypezidae) and phylogeny of the genus, pp. 501-554 in Zootaxa 4111 (5) on page 532, DOI: 10.11646/zootaxa.4111.5.1, http://zenodo.org/record/27147
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
No full text“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
No full textWe 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
Callomyia
No full textKey to females of Callomyia species in North America Females of C. argentea, C. bertae and C. browni are unknown and thus are not included here. 1. Antenna with first flagellomere subtriangular (Fig. 44); abdomen with alternate black and silver-grey markings (Fig. 37)...................................................................................... C. gilloglyorum Kessel - Antenna with first flagellomere short-oval (Fig. 43); abdomen with yellow, pale orange, metallic bluish-white and/or silverblue markings (Figs 33, 35, 36, 38– 40)..................................................................... 2 2. Abdomen entirely yellow (sometimes more brownish-yellow or brownish-orange) (Figs 27, 35)............ C. calla Kessel - Abdomen darker, never entirely one colour, with yellow, pale orange, metallic bluish-white and/or silver-blue markings (Figs 33, 36, 38–40)........................................................................................ 3 3. Thorax mainly silver-blue dusted with black median dorsal stripe on scutum (Figs 28, 36)............... C. corvina Kessel - Thorax mainly brown to black with metallic bluish-white or silver-blue markings on lateral portion of presutural scutum, notopleuron and most of postsutural scutum (Figs 25, 30–32, 33, 38–40).......................................... 4 4. Abdominal tergites 1 and 2 pale orange with silver-white dusting, tergite 6 metallic bluish-white (Fig. 33); halter pale orange; legs mainly brown (Fig. 25)..................................................... C. arnaudi Cumming sp. nov. - Abdominal tergites 1, 2 and sometimes 3 yellow, tergite 5 or 6 silver-blue (Figs 38–40); halter yellow; legs mainly yellow to yellowish-brown with hind leg darker (Figs 30–32)........................................................... 5 5. Abdomen with only tergites 1 and 2 yellow (both interrupted by median dorsal dark band) (Fig. 38); tergite 5 black and tergite 6 silver-blue; mid tibia with long median dorsal seta (Fig. 51)................................... C. proxima Johnson - Abdomen with tergites 1–3 entirely yellow (Figs 39, 40); tergite 5 silver-blue and tergite 6 black; mid tibia with median dorsal seta short (Fig. 52) or absent............................................................................. 6 6. Abdomen with silver-blue on tergite 5 interrupted by median dorsal dark band (Fig. 39) (sometimes partially interrupted); scutum with 2–3 presutural intra-alar setae, 3 at least on one side (Fig. 45); mid tibia usually with short median dorsal seta (Fig. 52).................................................................................. C. velutina Johnson - Abdomen with tergite 5 entirely silver-blue (Fig. 40); scutum with only 2 presutural intra-alar setae (Fig. 46); mid tibia with median dorsal seta absent.................................................................. C. venusta SnowPublished as part of Cumming, Heather J. & Wheeler, Terry A., 2016, Revision of the Nearctic species of Callomyia Meigen (Diptera: Platypezidae) and phylogeny of the genus, pp. 501-554 in Zootaxa 4111 (5) on pages 508-509, DOI: 10.11646/zootaxa.4111.5.1, http://zenodo.org/record/27147
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