1,720,997 research outputs found
FIGURE 6 in Six new species of Heteropriapulus (Monogenea: Dactylogyridae) from South American fishes with an amended diagnosis to the genus
FIGURE 6. (A–G) Sclerotized structures of Heteropriapulus falxus n. sp. from Hypostomus strigaticeps (Regan) and Hypostomus ancistroides (Ihering) from the Upper Paraná River, Brazil. A, ventral anchor. B, dorsal anchor. C, vagina. D, male copulatory complex. E, ventral bar. F, dorsal bar. G, hook.Published as part of Acosta, Aline Angelina, Franceschini, Lidiane, Zago, Aline Cristina, Scholz, Tomáš & Silva, Reinaldo José Da, 2017, Six new species of Heteropriapulus (Monogenea: Dactylogyridae) from South American fishes with an amended diagnosis to the genus, pp. 459-482 in Zootaxa 4290 (3) on page 471, DOI: 10.11646/zootaxa.4290.3.3, http://zenodo.org/record/82920
Heteropriapulus simplex Li & Huang 2012
Heteropriapulus simplex Li & Huang, 2012 (Fig. 3) Specimens studied. 30 SpecimenS frOm Pterygoplichthys ambrosettii frOm the Aguapeí RiVer: 10 VOucherS in CHIOC (38843a, b; 38844,–38849; 38850a, b), 15 VOucherS in CHIBB (252–266L) and 5 VOucherS in IPCAS (M- 653). Type host. Hypostomus plecostomus (LinnaeuS) (SilurifOrmeS: LOricariidae). Additional host. Pterygoplichthys ambrosettii (HOlmberg) (SilurifOrmeS: LOricariidae) (neW hOSt recOrd). Site of infection. GillS. Type locality. GuangzhOu, China. Distribution. China (impOrted), Brazil (Aguapeí RiVer, municipality Of CaStilhO, Paraná RiVer baSin, SãO PaulO State, Brazil, 21°3'36.20"S, 51°45'38.58"W—neW geOgraphical recOrd). Representative DNA sequence. 1,575 bp lOng Sequence Of the D1–D3 regiOn Of the lsr DNA Of One Specimen frOm P. ambrosettii (GenBank AcceSSiOn NO. MF 116372). Remarks. Heteropriapulus simplex WaS deScribed frOm H. plecostomus intrOduced tO China frOm SOuth America (Li & Huang, 2012). SpecimenS fOund in P. ambrosettii differ Only Slightly, eSpecially in their SOmeWhat greater Size and a thicker dOrSal cOnnecting bar, frOm SpecimenS deScribed by Li & Huang (2012) frOm the type hOSt (Table 2). The preSent Study prOVideS a neW hOSt and geOgraphical recOrd fOr H. simplex, Which iS repOrted frOm the prObable Original diStributiOn area, i.e. NeOtrOpical RegiOn, fOr the firSt time.Published as part of Acosta, Aline Angelina, Franceschini, Lidiane, Zago, Aline Cristina, Scholz, Tomáš & Silva, Reinaldo José Da, 2017, Six new species of Heteropriapulus (Monogenea: Dactylogyridae) from South American fishes with an amended diagnosis to the genus, pp. 459-482 in Zootaxa 4290 (3) on page 467, DOI: 10.11646/zootaxa.4290.3.3, http://zenodo.org/record/82920
Going Beyond Counting First Authors in Author Co-citation Analysis
The 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
“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
We 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
Heteropriapulus heterotylus
Heteropriapulus heterotylus (Fig. 2) Syn. Heterotylus heterotylus Jogunoori, Kritsky & Venkatanarasaiah, 2004 Material studied. HOlOtype (USNPC 93651) and 4 paratypeS (BMNH 2003.9.4.4-12, 19, 23, 24 and 26); 20 SpecimenS frOm Pterygoplichthys ambrosettii frOm the Aguapeí RiVer: 8 VOucherS in CHIOC (38817–38820a, b; 38821a, b; 38822), 8 VOucherS in CHIBB (244–251L) and 4 VOucherS in IPCAS (M-652). Type host. Hypostomus Sp. (SilurifOrmeS: LOricariidae). Type locality. Aquaria in Hyderabad and Secunderabad, India (fiSh hOStS Were impOrted Via the aquarium trade). Additional hosts. Hypostomus plecostomus, Pterygoplichthys ambrosettii (neW hOSt recOrd), P. disjunctivus (Weber) and P. pardalis (CaStelnau) (all SilurifOrmeS: LOricariidae). Site of infection. GillS. Distribution. India (intrOduced), Brazil (Aguapeí RiVer, municipality Of CaStilhO, Paraná RiVer baSin, SãO PaulO State, Brazil, 21°3'36.20"S, 51°45'38.58"W—neW geOgraphical recOrd), China (intrOduced), MeXicO (intrOduced). Representative DNA sequence. 1,575 bp lOng Sequence Of the D1–D3 regiOn Of the lsr DNA Of One Specimen frOm P. ambrosettii (GenBank AcceSSiOn NO. MF 116370). Remarks. In additiOn tO the Original deScriptiOn, thiS SpecieS WaS alSO fOund On H. plecostomus intrOduced tO China (Li & Huang, 2012), P. disjunctivus intrOduced tO Japan (Nitta & NagaSaWa, 2013), and inVaSiVe P. pardalis and P. disjunctivus in MeXicO (ROdríguez-SantiagO et al., 2015, 2016). SpecimenS fOund On P. ambrosettii frOm Brazil Were identified aS H. heterotylus and their identificatiOn WaS cOnfirmed by cOmpariSOn With the hOlOtype and paratypeS Of H. heterotylus. NeVertheleSS, Slight difference WaS fOund betWeen SOme Of the meaSurementS Of the neW material frOm Brazil and thOSe in the Original deScriptiOn, eSpecially in greater Size Of the preSent SpecimenS (See Table 2). The cirruS Of the Brazilian SpecimenS preSentS 1½ cOunterclOckWiSe Spiral ringS neXt tO the rOunded baSe, WhereaS the cirruS Of SpecimenS frOm type hOSt preSentS, accOrding tO JOgunOOri et al. (2004), an incOnSpicuOuS prOXimal bend. In the Original deScriptiOn, JOgunOOri et al. (2004) State that the acceSSOry piece iS lOng, Variable and apparently With fOur SubunitS, but Only three SubunitS Were ObSerVed in the SpecimenS frOm Brazil (Fig. 2 C). In the preSent Study, firSt mOlecular data On H. heterotylus are prOVided (Fig. 10), a neW fiSh hOSt iS added and the diStributiOn area iS enlarged including the mOSt prObably Original diStributiOn area Of the SpecieS.Published as part of Acosta, Aline Angelina, Franceschini, Lidiane, Zago, Aline Cristina, Scholz, Tomáš & Silva, Reinaldo José Da, 2017, Six new species of Heteropriapulus (Monogenea: Dactylogyridae) from South American fishes with an amended diagnosis to the genus, pp. 459-482 in Zootaxa 4290 (3) on pages 465-466, DOI: 10.11646/zootaxa.4290.3.3, http://zenodo.org/record/82920
Dispelling the Myths Behind First-author Citation Counts
We 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
We 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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