1,720,968 research outputs found
Figs 32–40 in A revision of the Chinese Helochares (s. str.) Mulsant, 1844 (Coleoptera, Hydrophilidae)
No full textFigs 32–40. Helochares pallens (MacLeay, 1825). 32–34. Habitus. 32. Dorsal. 33. Ventral. 34. Lateral. 35. Head and pronotum. 36. Pronotum, dorsolateral. 37. Head, ventral. 38. Prosternum. 39. Mesoventrite with legs. 40. Abdomen.Published as part of Jia, Fenglong & Tang, Yu-dan, 2018, A revision of the Chinese Helochares (s. str.) Mulsant, 1844 (Coleoptera, Hydrophilidae), pp. 1-27 in European Journal of Taxonomy 438 on page 19, DOI: 10.5852/ejt.2018.438, http://zenodo.org/record/378547
Figs 41–46. – 41–42 in A revision of the Chinese Helochares (s. str.) Mulsant, 1844 (Coleoptera, Hydrophilidae)
No full textFigs 41–46. – 41–42. Helochares pallens (MacLeay, 1825). Elytra. 41. Dorsal. 42. Ventral. 43, 45. Paratype of H. vitalisi d'Orchymont, 1919. 43. Data of labels. 45. Habitus, dorsal. 44, 46. Paratype of H. fuliginosus d'Orchymont, 1932. 44. Data of labels. 46. Habitus, dorsal.Published as part of Jia, Fenglong & Tang, Yu-dan, 2018, A revision of the Chinese Helochares (s. str.) Mulsant, 1844 (Coleoptera, Hydrophilidae), pp. 1-27 in European Journal of Taxonomy 438 on page 21, DOI: 10.5852/ejt.2018.438, http://zenodo.org/record/378547
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
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
Helochares Mulsant 1844
No full textA key to the species of Helochares (s. str.) of China 1. Elytra with 10 striae and scutellary stria, punctures in striae coarser than systematic punctures..................................................................................................Subgenus Hydrobaticus MacLeay, 1871 – Elytra without striae or series of punctures except for the rows of systematic punctures, without scutellary stria......(Subgenus Helochares (s. str.) Mulsant, 1844)..................................................2 2. Size small, 2.8–3.4 mm in length. Dorsum yellowish or reddish brown with dark labrum and frons (Figs 32, 34), pronotum and elytra never dark brown or black. Mesoventrite only simply convex posteromedially, without a transverse ridge or process pointed posteriorly (Fig. 39)........................................................................................................................ H. pallens (MacLeay, 1825) – Size over 3.6 mm in length. Dorsum dark brown or black, if yellowish or reddish brown, then size over 4.9 mm. Mesoventrite with a transverse ridge or a process (Figs 7, 15, 24, 30)...............3 3. Dark brown or black with very fine ground punctures, clypeus with systematic punctures distinctly larger than ground punctation. Mesoventrite with a stout, backward pointing projection (Fig. 24). Parameres with 3 branches on apical third (Figs 50–51).......................................................................................................................................... H. atropiceus Régimbart, 1903 – Dorsum yellowish brown, dark brown or black with coarser ground punctures, systematic punctures on clypeus almost of the same size as ground punctures. Mesoventrite with a transverse ridge (Figs 7, 15, 30), without backward projection. Parameres without branches (Figs 47–48, 52–55).......................................................................................................................4 4. Yellowish or reddish brown with dark brown labrum, never dark brown or black (Fig. 26). Clypeus at most slightly expanded, not impressed in front of eyes. Elytra usually with some longitudinal rows of black spots (Fig. 26). Dorsum with coarser punctures, systematic punctures usually somewhat indistinct (Figs 26, 28). Median lobe of aedeagus with spiniform apex (Figs 53–55)........................................................................................... H. obscurus (Müller, 1776) – Dark brown or black, pronotum with yellowish brown lateral margin (Figs 1, 9). Clypeus more expanded, distinctly impressed in front of eyes (Figs 4, 14). Elytra without longitudinal rows of black spots. Median lobe of aedeagus with broad apex (Figs 47–49)........................5 5. Body length 4.8–5.3 mm. Lateral margin of clypeus and elytra with same colour as disc (Figs 1, 3–4); pronotum and elytra more coarsely punctate; maxillary palps dark brown or black, each palpomere clearly lighter (Fig. 4). Aedeagus slender, parameres ca 10 × as long as width of apex, apex with a small dent inwards (Figs 48–49)...................................................... H. songi sp. nov. – Body length 3.6–4.3 mm. Clypeus and elytra with light colour laterally (Figs 11, 14); pronotum and elytra with finer and sparser punctures; maxillary palps uniformly yellowish brown (Figs 12–14). Length of parameres ca 6.5 × width of apex, subparallel, apex without small dent inwards (Fig. 47); median lobe expanded subapically, abruptly narrowed apically (Fig. 47)....................................................................................................... H. fuliginosus d’Orchymont, 1932Published as part of Jia, Fenglong & Tang, Yu-dan, 2018, A revision of the Chinese Helochares (s. str.) Mulsant, 1844 (Coleoptera, Hydrophilidae), pp. 1-27 in European Journal of Taxonomy 438 on page 22, DOI: 10.5852/ejt.2018.438, http://zenodo.org/record/378547
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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