1,720,984 research outputs found
Review and key to Nearctic Lathrolestes Förster (Hymenoptera: Ichneumonidae), with special reference to species attacking leaf mining tenthredinid sawflies in Betula Linnaeus (Betulaceae)
No full textReshchikov, Alexey V., Soper, Anna, Van, Roy G. (2010): Review and key to Nearctic Lathrolestes Förster (Hymenoptera: Ichneumonidae), with special reference to species attacking leaf mining tenthredinid sawflies in Betula Linnaeus (Betulaceae). Zootaxa 2614: 1-17, DOI: 10.5281/zenodo.19787
Lathrolestes zeugophorae Barron 1994
No full textLathrolestes zeugophorae Barron, 1994 Lathrolestes zeugophorae Barron, 1994, Holotype, female, (CNC) The type specimen has propodeal carinae complete, with the costula present (Fig. 36). There is mistake in original description (Barron, 1994) in this character state. Some additional description is provided here. Head not narrowed behind the eyes. Malar space as wide as 0.8 of basal mandible width. Mesopleuron granulate. 5 th article of tarsus enlarged (Fig. 52). Ovipositor straight.Published as part of Reshchikov, Alexey V., Soper, Anna & Van, Roy G., 2010, Review and key to Nearctic Lathrolestes Förster (Hymenoptera: Ichneumonidae), with special reference to species attacking leaf mining tenthredinid sawflies in Betula Linnaeus (Betulaceae), pp. 1-17 in Zootaxa 2614 on page 14, DOI: 10.5281/zenodo.19787
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
Lathrolestes mnemonicae Rohwer 1914
No full textLathrolestes mnemonicae (Rohwer, 1914) Sympherta mnemonicae Rohwer, 1914, Holotype, female, Falls Church, Virginia (SI). Lathrolestes mnemonicae; Cushman, 1933; Carlson, 1979 In addition to the previous description of this species, we note that this species is rather close to the European L. clypeatus (Zetterstedt, 1838). It differs from the latter species by a wider and shorter clypeus; pale apical margin of clypeus and maculae on the sides adjacent antenna; tarsal claws more strongly curved at apex, apical tooth longer than two preapical teeth (Fig. 48). Ovipositors of both species are similar (Fig. 24). There is variation in coloration in specimens from the CNC, which resemble L. clypeatus (Zetterstedt, 1838). Most likely, L. mnemonicae (Rohwer, 1914) is a Nearctic subspecies of L. clypeatus (Zetterstedt, 1838). These two species are also similar in the hosts they attack, leafmining Lepidoptera of the family Eriocraniidae. Lathrolestes mnemonicae (Rohwer, 1914) attacks Dyseriocrania auricyanea (Walsingham, 1882) and D. griseocapitella (Walsingham, 1898); L. clypeatus (Zetterstedt, 1838) attacks members of the genus Eriocrania.Published as part of Reshchikov, Alexey V., Soper, Anna & Van, Roy G., 2010, Review and key to Nearctic Lathrolestes Förster (Hymenoptera: Ichneumonidae), with special reference to species attacking leaf mining tenthredinid sawflies in Betula Linnaeus (Betulaceae), pp. 1-17 in Zootaxa 2614 on page 14, DOI: 10.5281/zenodo.19787
Lathrolestes Forster
No full textLathrolestes Förster Lathrolestes Förster, 1869: 196. Type-species: Tryphon clypeatus Zetterstedt. Camporychus Förster, 1869. Type-species: Lathrolestes marginatus Thomson; Culmina Benoit, 1955. Type-species: Culmina ruwenzorica Benoit; Ecclinops Förster, 1869. Type-species: Tryphon orbitalis Gravenhorst; Homalomma Förster, 1869. Type-species: Homalomma caliroae Rohwer; Laphyroscopus Förster, 1869. Type-species: Tryphon gorskii Ratzeburg; Lathrolestus Thomson, 1883. Type-species: Lathrolestus clypeatus Zetterstedt Luphyroscopus Thomson, 1883. Type-species: Luphyroscopus gorskii Ratzeburg Ritzemabosia Smits van Burgst, 1912. Type-species: Ritzemabosia meridionalis Smits van Burgst; Tryphonopsis Brauns, 1898. Tryphonopsis ensator Brauns Diagnosis. Small to medium sized species, 4.0– 7.5 mm. Occipital carina not intercepting hypostomal carina. Clypeus profile flat, its apical margin thick. Mandibles with lower tooth distinctly longer than the upper. Areolet petiolate, oblique. Second recurrent vein with a single bulla. Nervellus intercepted below or at its middle. Tarsal claws pectinate, with 1 or 3 teeth or with basal lobe. Glymmae deep. Apex of subgenital plate of male not incurved on hind margin. Tip of aedeagus somewhat decurved and swollen, its apex rounded. Ovipositor sheath 0.5 to 1.5 as long as metasomal height.Published as part of Reshchikov, Alexey V., Soper, Anna & Van, Roy G., 2010, Review and key to Nearctic Lathrolestes Förster (Hymenoptera: Ichneumonidae), with special reference to species attacking leaf mining tenthredinid sawflies in Betula Linnaeus (Betulaceae), pp. 1-17 in Zootaxa 2614 on pages 3-4, DOI: 10.5281/zenodo.19787
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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