1,721,015 research outputs found
Biosystematics of the Psyttalia concolor species complex (Hymenoptera:Braconidae:Opiinae): the identity of populations attacking Ceratitis capitata (Diptera:Tephritidae) in coffee in Kenya
No full textSigniphora rectrix Girault 1915
No full textSigniphora rectrix Girault, 1915 Signiphora rectrix Girault, 1915: 71. Female. urn:lsid:zoobank.org:act:E5A3A465-2842-4711-AD40-2B0D4757966D Discussion. Signiphora rectrix was described from a single female specimen in poor condition mounted under a cover slip fragment in Canada balsam, deposited in the Queensland Museum. The holotype is lacking fore wings and hind wings. It appears to be a member of the flavopalliata group, based on overall habitus and body coloration. However, without fore wings it is impossible to determine if it represents a valid species or is a synonym of another species. Details on the type (examined) are as follows (Dahms 1986): type locality Kuranda, Queensland, Forest. QM holotype HY 2966. The slide also bears a second QM type number, T.4144, which was a duplicate register number for the holotype of this species and has been cancelled (Dahms 1986).Published as part of Woolley, J. B. & Dal Molin, A., 2017, Taxonomic revision of the flavopalliata species group of Signiphora (Hymenoptera: Signiphoridae), pp. 1-150 in Zootaxa 4315 (1) on page 100, DOI: 10.11646/zootaxa.4315.1.1, http://zenodo.org/record/85844
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Signiphora flavella subsp. flavopalliata
No full textThe flavopalliata species group Diagnosis. Length (pronotum to epiproct) 0.29–0.83 mm. Female and male antenna with 3 anelli. Mandibles bidentate, bidentate with a dorsal truncation, or tridentate. Mandibular ducts usually enlarged apically (parallelsided in S. maculata). Mesoscutum with 2 setae (rarely 4) and scutellum with 3–9 setae. Propodeum with medial sclerite with lamelliform process 1/4–1/2× length of medial sclerite. Fore wing submarginal vein with 1 seta, marginal vein with 4–6 dorsal setae (rarely 3). Fore wing with or without discal seta. Species with a discal seta in fore wing usually bear 1 or 2 ventral setae on marginal vein. In a few species, fore wing infuscated from wing base to distal end of stigmal vein or beyond, with two hyaline areas—one under proximal half of submarginal vein, the other along posterior wing margin extending to seta M1 or M2 of marginal vein. Hind wing with parallel margins and without a discal seta. Hind wing marginal vein with 2 dorsal setae, one in proximal 1/4 and one in the distal 1/ 4 near posterior margin of the vein. Mesofemur with 1 long spine and 1 very short spine distal to the long spine. Mesotibia obconic but not strongly so, with widest part (at insertion of distal-most long spine) in distal 2/3–3/4. Mesotibial spur more or less straight and with 3–8 teeth. Male genitalia without medial denticles at apex of phallobase. Male Ms7 posteromedial margin transverse, without a medial emargination or incision. Male Ms8 shape varying from narrowly transverse to broadly triangular.Published as part of Woolley, J. B. & Dal Molin, A., 2017, Taxonomic revision of the flavopalliata species group of Signiphora (Hymenoptera: Signiphoridae), pp. 1-150 in Zootaxa 4315 (1) on page 9, DOI: 10.11646/zootaxa.4315.1.1, http://zenodo.org/record/85844
Variations on the Author
Full text link“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
Full text linkWe 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
Full text linkWe 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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