1,722,844 research outputs found
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
Oxysarcodexia intona Det. H. S. Lopes
No full textOxysarcodexia intona (Curran & Walley, 1934) (Figs 154–156) Sarcophaga intona Curran & Walley, 1934: 489; Guyana, Kartabo. Holotype male and female allotype in AMNH (not examined). Sarcophaga intonsa: Lopes (1969: 26), incorrect subsequent spelling of intona Curran & Walley, 1934. Diagnosis. Male. Length 8.0–9.0 mm. Postocular plate with golden pollinosity. Ocellar bristles weakly developed. Thorax and abdomen with silvery pollinosity, T5 with golden pollinosity, although not along the entire extension. Two well-differentiated posterior and 1–3 smaller anterior post-sutural dorsocentrals.Apical scutellar bristles absent. Legs brownish. T4 with no median marginal and 3 pairs of lateral marginal bristles. ST5 with deep median cleft with margins almost parallel and with bristles at apex of arms. Cercus sinuous in lateral view, apex expanded and with concave margin. Cercus with bristles ventrally only in distal third. Cerci with distal third as broad as middle part in posterior view; diverging. Pregonite with expanded base and sudden narrowing at apex, which is darker than base. Postgonite like pregonite, except unicolorous. Distiphallus with a large membranous dorsoapical swelling, smooth ventroapical margin, ventroapical projections, lateral lobes, rounded apex and sinuous dorsal outline. Vesica symmetrical, with angular median projection of main branch; distal lobes reduced, with filaments, tapering, partially membranous, with spines on both dorsal and ventral surfaces. Remarks. See under O. aurata. The female of O. intona has T7 membranous (Tibana & Mello 1985). Distribution. NEOTROPICAL. Brazil (Amazonas, Amapá, Ceará, Espírito Santo, Maranhão, Minas Gerais, Pará, Pernambuco, Rio de Janeiro), Guyana. Biology. This species has been collected on pig, rat, and fish carcasses in the Brazilian Cerrado, rainforest environments, areas of degraded vegetation, sandy beaches, and urban and insular areas (Pamplona et al. 2000; Barbosa et al. 2009; Vasconcelos & Araujo 2012; Vasconcelos et al. 2013; Barbosa 2015; Carmo & Vasconcelos 2016; Barbosa et al. 2017; Carmo et al. 2017). It has also been collected in palm groves, marshland and mangrove areas (Sousa et al. 2016). Baits such as feces, banana mixed with brown sugar, rotten cow liver and lung, dead fish, sardine, chicken liver, and squid have been used in W.O.T., Shannon and “can/bottle” traps (Lopes 1975a; Pamplona et al. 2000; Oliveira et al. 2002; Barbosa 2015; Barbosa et al. 2015; Sousa et al. 2015; Carmo & Vasconcelos 2016; Sousa et al. 2016; Barbosa et al. 2017). Oxysarcodexia intona is considered an early visitor in forensic entomology (Vasconcelos et al. 2013). In the Brazilian state of Maranhão, albeit a dominant species, O. intona was classified as an intermediate species, according to its occurrence, due to its accessory status, and it was recorded only at 25% to 50% of the study sites (Sousa et al. 2015). In Itamaracá, a continental island (Pernambuco state, Brazil), O. intona was considered an accidental species, collected in areas of low, moderate and high anthropogenic impact (Carmo & Vasconcelos 2016). Barbosa et al. (2017) considered O. intona as showing a weak preference for modified beaches. Material examined. [♂] RIO DE JANEIRO, BRASIL / R. Tibana / NRM-DIPT 0014318 [NRM] // [♂] Guarapari, Esp. Santo, Brasil / H. S. Lopes, 9.I.75 / Oxysarcodexia intona ♂ (C. et w.), det. H. S. Lopes [NHMD] // [♂] [Brazil] Inst. Agr. do Norte Pará—28-5-56 E. Lobato / Oxysarcodexia intona (Curran & Walley) Det. H. S.Lopes ♂ [MNRJ] // [♂] S. Miguel do Guamá Est. do Pará Brasil 16/24 X-959 E. Lobato / Oxysarcodexia intona (Curran & Walley) Det. H. S. Lopes ♂ [MNRJ].Published as part of Souza, Carina Mara De, Pape, Thomas & Thyssen, Patricia Jacqueline, 2020, Oxysarcodexia Townsend, 1917 (Diptera: Sarcophagidae) - a centennial conspectus, pp. 1-126 in Zootaxa 4841 (1) on page 66, DOI: 10.11646/zootaxa.4841.1.1, http://zenodo.org/record/440560
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
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
Oxysarcodexia confusa , Lopes. Det. H. S. Lopes 1946
No full textOxysarcodexia confusa Lopes, 1946 (Figs 82–84) Oxysarcodexia confusa Lopes, 1946b: 96; Brazil, Rio de Janeiro, Miguel Pereira. Holotype male, female allotype, 29 male paratypes and 7 female paratypes in MNRJ. Diagnosis. Male. Length 7.0–9.0 mm. Postocular plate with golden pollinosity. Ocellar bristles well developed. Thorax with golden pollinosity, contrasting with the silvery pollinosity of the abdomen; T5 normally without golden pollinosity, in a few cases a pale golden pollinosity can be present laterally. Two well-differentiated posterior and 1–3 smaller anterior post-sutural dorsocentrals. Apical scutellar bristles absent. Legs brownish. T3 with 2 pairs of lateral marginal bristles, T4 with 1 pair of median marginal and 3 pairs of lateral marginal bristles. ST5 with deep median cleft with margins almost parallel and with pilosity. Cercus straight in lateral view, with expanded obliquely cut apex and dorsal subapical barb. Cercus with bristles ventrally absent only on middle portion. Cerci with distal third as broad as middle part in posterior view; parallel and with a distinct constriction mid length. Pregonite and postgonite both with expanded base, gradually narrowing smoothly to apex; unicolorous. Distiphallus with smooth ventroapical margin, rounded apex and straight dorsal outline. Vesica symmetrical, with rounded median projection of main branch; distal lobes reduced, rounded, partially membranous, with spines on both dorsal and ventral surfaces. Remarks. A detailed comparison of the male terminalia of O. confusa and the sympatric species O. avuncula, O. diana and O. parva, with which it is frequently confused, was made by Silva & Mello-Patiu (2008). The distiphallus of O. confusa (Fig. 83) is very similar in lateral view to that of O. molitor (Curran & Walley, 1934) (Fig. 189), differing by the morphology of the median area, spinous in O. molitor (ventral view), and by the structure of the lateral and median styli (Lopes 1975c). The lateral stylus of O. confusa has a rounded base, short apex, and spines; and the median stylus is larger than the lateral one and has pilosity in its basal area (Silva & Mello-Patiu 2008). The lateral stylus of O. molitor is curved and larger than the median stylus (Lopes 1975c). See also remarks under O. comparilis. The female of O. confusa has an undivided T7 (Tibana & Mello 1985). The first, second and third larval instars were described by Lopes & Leite (1986), Leite & Lopes (1987), and Lopes & Leite (1987), respectively. Distribution. NEOTROPICAL. Argentina (Misiones), Brazil (Amazonas, Mato Grosso, Mato Grosso do Sul, Minas Gerais, Paraná, Rio de Janeiro, Santa Catarina, São Paulo). Biology. This species has been collected from human feces, chicken viscera, mouse, pig and fish carcasses, rotten squid, and rotten bananas mixed with yeast or brown sugar (Lopes 1973b; Dias et al. 1984c; Mendes & Linhares 1993; Vairo et al. 2014; Dufek et al. 2016). It has been reared from human feces under natural conditions; in the laboratory it has been reared on agar and powdered milk for 24h, then transferred to meat to complete development (Lopes 1973b). In a study on the synanthropy of flesh flies from Curitiba, Brazil, Ferreira (1979) collected O. confusa using a trap baited with fish, chicken liver and human feces, observing that this species was rarely associated with inhabited areas. Dufek et al. (2016) considered it to be hemi- and non-synanthropic in Argentinean wetlands. Type material examined. Holotype ♂: [Brazil] INS.OSW.CRUZ N.-10.802. / M. PEREIRA EST. RIO H. S. LOPES -6.933 CULT. N. 78 / Holotype / Oxysarcodexia confusa [no italics] sp. n. Lopes. det 1944 / MNRJ 2237 [typed vertically on left side of label] [MNRJ] // paratype ♂: [Brazil] Est. Exp. Loreto 1936. VI Dr. A. Ogloblin / Paratype / Oxysarcodexia confusa [no italics] sp. n. Lopes. det 1944 [MNRJ] // paratype ♂: [Brazil] S. Paulo— Cantareira Serra L. Trav. F. Q. 30.VIII.935 / Paratype / Oxysarcodexia confusa sp.n. Lopes—det 1944 [MNRJ]. Other material examined. [♂] Petrópolis, Tq; E. do Rio, Brasil, H. S. Lopes, 2.69 / Oxysarc. confusa, Lop., ♂, Det. H. S. Lopes / NRM-DIPT 0014285 [NRM] // [♂] [Brazil] IGUASSÚ, Paraná XII-941, Com. E. N. V. / NRM-DIPT 0014287 [NRM] // [♂] Taquara, Petrópolis, E. do Rio, Brasil / H. S. Lopes, 16.II.75 / Oxysarcodexia confusa, Lopes. Det. H. S. Lopes [NHMD].Published as part of Souza, Carina Mara De, Pape, Thomas & Thyssen, Patricia Jacqueline, 2020, Oxysarcodexia Townsend, 1917 (Diptera: Sarcophagidae) - a centennial conspectus, pp. 1-126 in Zootaxa 4841 (1) on page 43, DOI: 10.11646/zootaxa.4841.1.1, http://zenodo.org/record/440560
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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