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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
Vibrio Variabilis Sp. Nov. And Vibrio Maritimus Sp. Nov., Isolated From Palythoa Caribaeorum
No full textTwo novel vibrio isolates (R-40492 T and R-40493 T) originating from the zoanthid Palythoa caribaeorum in Brazil in 2005 were taxonomically characterized by means of a polyphasic approach comprising multilocus sequence analysis (MLSA), DNA-DNA hybridization (DDH), ΔTm analysis and phenotypic characterization. Phylogenetic analysis based on 16S rRNA gene sequences showed that R-40492 T and R-40493 T fell within the genus Vibrio and were most closely related to each other with 99% similarity; similarities of these two novel isolates towards Vibrio neptunius LMG 20536 T, Vibrio coralliilyticus LMG 20984 T, Vibrio nigripulchritudo LMG 3896 T, Vibrio sinaloensis LMG 25238 T and Vibrio brasiliensis LMG 20546 T varied between 97.1 and 98.5%. DDH experiments showed that the two isolates had less than 15% relatedness to the phylogenetically most closely related Vibrio species. R-40492 T and R-40493 T had 55-57% relatedness to each other. The ΔTm between R-40492 T and R-40493 T was 6.12 °6C. In addition, MLSA of concatenated sequences (16S rRNA, ftsZ, gyrB, recA, rpoA, topA, pyrH and mreB; 6035 bp in length) showed that the two novel isolates formed a separate branch with less than 92% concatenated gene sequence similarity towards known species of vibrios. Two novel species are proposed to accommodate these novel isolates, namely Vibrio variabilis sp. nov. (type strain, R-40492 T=LMG 25438 T=CAIM 1454 T) and Vibrio maritimus sp. nov. (type strain, R-40493 T=LMG 25439 T=CAIM 1455 T)., © 2011 IUMS.611230093015Baumann, P., Schubert, R.H.W., Genus I.Vibrio.In Bergey's Manual of Systematic Bacteriology (1984), 1, pp. 518-538. , Edited by N. R. Krieg J. G. Holt. Baltimore: Williams WilkinsBen-Haim, Y., Thompson, F.L., Thompson, C.C., Cnockaert, M.C., Hoste, B., Swings, J., Rosenberg, E., Vibrio coralliilyticus sp.nov.,a temperature-dependent pathogen of the coral Pocillopora damicornis (2003) Int J Syst Evol Microbiol, 53, pp. 309-315Bourne, D.G., Garren, M., Work, T.M., Rosenberg, E., Smith, G.W., Harvell, C.D., Microbial disease and the coral holobiont (2009) Trends Microbiol, 17, pp. 554-562Chimetto, L.A., Brocchi, M., Thompson, C.C., Martins, R.C.R., Ramos, H.R., Thompson, F.L., Vibrios dominate as culturable nitrogen-fixing bacteria of the Brazilian coral Mussismilia hispida (2008) Syst Appl Microbiol, 31, pp. 312-319Chimetto, L.A., Brocchi, M., Gondo, M., Thompson, C.C., Gomez-Gil, B., Thompson, F.L., Genomic diversity of vibrios associated with the Brazilian coral Mussismilia hispida and its sympatric zoanthids (Palythoa caribaeorum, Palythoa variabilis and Zoanthus solanderi) (2009) J Appl Microbiol, 106, pp. 1818-1826Chimetto, L.A., Cleenwerck, I., Alves Jr., N., Silva, B.S., Brocchi, M., Willems, A., de Vos, P., Thompson, F.L., Vibrio communis sp.nov.,isolated from the marine animals Mussismilia hispida, Phyllogorgia dilatata, Palythoa caribaeorum, Palythoa variabilis and Litopenaeus vannamei (2011) Int J Syst Evol Microbiol, 61, pp. 362-368Eck, R.V., Dayhoff, M.O., (1966) Atlas of Protein Sequence and Structure, , Silver Springs, MD: National Biomedical Research FoundationEzaki, T., Hashimoto, Y., Yabuuchi, E., Fluorometric deoxyribonucleic acid-deoxyribonucleic acid hybridization in microdilution wells as an alternative to membrane filter hybridization in which radioisotopes are used to determine genetic relatedness among bacterial strains (1989) Int J Syst Bacteriol, 39, pp. 224-229Felsenstein, J., Confidence limits on phylogenies: An approach using the bootstrap (1985) Evolution, 39, pp. 783-791Gomez-Gil, B., Fajer-Avila, E., Garcia-Vargas, F., Vibrios of the spotted rose snapper Lutjanus guttatus Steindachner, 1869 from northwestern Mexico (2007) J Appl Microbiol, 102, pp. 1518-1526Gomez-Gil, B., Fajer-Avila, E., Pascual, J., Macian, M.C., Pujalte, M.J., Garay, E., Roque, A., Vibrio sinaloensis sp.nov.,isolated from the spotted rose snapper,Lutjanus guttatus Steindachner, 1869 (2008) Int J Syst Evol Microbiol, 58, pp. 1621-1624Goris, J., Suzuki, K., de Vos, P., Nakase, T., Kersters, K., Evaluation of a microplate DNA-DNA hybridization method compared with the initial renaturation method (1998) Can J Microbiol, 44, pp. 1148-1153Huys, G., Vancanneyt, M., Coopman, R., Janssen, P., Falsen, E., Altwegg, M., Kersters, K., Cellular fatty-acid composition as a chemotaxonomic marker for the differentiation of phenospecies and hybridization groups in the genus Aeromonas (1994) Int J Syst Bacteriol, 44, pp. 651-658Kovacs, N., Identification of Pseudomonas pyocyanea by the oxidase reaction (1956) Nature, 178, p. 703Macian, M.C., Ludwig, W., Aznar, R., Grimont, P.A.D., Schleifer, K.H., Garay, E., Pujalte, M.J., Vibrio lentus sp.nov.,isolated from Mediterranean oysters (2001) Int J Syst Evol Microbiol, 51, pp. 1449-1456Mesbah, M., Premachandran, U., Whitman, W.B., Precise measurement of the G+C content of deoxyribonucleic acid by high performance liquid chromatography (1989) Int J Syst Bacteriol, 39, pp. 159-167Moreira, A.P.B., Pereira Jr., N., Thompson, F.L., Usefulness of a real-time PCR platform for G+C content and DNA-DNA hybridization estimations in vibrios (2011) Int J Syst Evol Microbiol, 61, pp. 2379-2383Oigman-Pszczol, S.S., Figueiredo, M.A.O., Creed, J.C., Distribution of benthic communities on the tropical rocky subtidal of Armac ̧a ̃o dos Bu ́zios, southeastern Brazil (2004) Mar Ecol (Berl), 25, pp. 173-190Rossello-Mora, R., Amann, R., The species concept for prokaryotes (2001) FEMS Microbiol Rev, 25, pp. 39-67Saitou, N., Nei, M., The neighbor-joining method: A new method for reconstructing phylogenetic trees (1987) Mol Biol Evol, 4, pp. 406-425Sawabe, T., Kita-Tsukamoto, K., Thompson, F.L., Inferring the evolutionary history of vibrios by means of multilocus sequence analysis (2007) J Bacteriol, 189, pp. 7932-7936Sheu, S.Y., Jiang, S.R., Chen, C.A., Wang, J.T., Chen, W.M., Vibrio stylophorae sp.nov.,isolated from the reef-building coral Stylophora pistillata (2011) Int J Syst Evol Microbiol, 61, pp. 2180-2185Sussman, M., Willis, B.L., Victor, S., Bourne, D.G., Coral pathogens identified for White Syndrome (WS) epizootics in the Indo-Pacific (2008) PLoS ONE, 2393, p. 3Tamura, K., Dudley, J., Nei, M., Kumar, S., MEGA4:Molecular Evolutionary Genetics Analysis (MEGA) software version 4.0 (2007) Mol Biol Evol, 24, pp. 1596-1599Thompson, F.L., Hoste, B., Vandemeulebroecke, K., Swings, J., Genomic diversity amongst Vibrio isolates from different sources determined by fluorescent amplified fragment length polymorphism (2001) Syst Appl Microbiol, 24, pp. 520-538Thompson, F.L., Hoste, B., Thompson, C.C., Huys, G., Swings, J., The coral bleaching Vibrio shiloi Kushmaro 2001 is a later synonym of Vibrio mediterranei Pujalte and Garay 1986 (2001) Syst Appl Microbiol, 24, pp. 516-519Thompson, F.L., Hoste, B., Vandemeulebroecke, K., Engelbeen, K., Denys, R., Swings, J., Vibrio trachuri Iwamoto 1995 is a junior synonym of Vibrio harveyi (Johnson and Shunk 1936) Baumann 1981 (2002) Int J Syst Evol Microbiol, 52, pp. 973-976Thompson, F.L., Li, Y., Gomez-Gil, B., Thompson, C.C., Hoste, B., Vandemeulebroecke, K., Rupp, G.S., de Bem, M.M., Vibrio neptunius sp.nov.,Vibrio brasiliensis sp.nov.and Vibrio xuii sp.nov.,isolated from the marine aquaculture environment (bivalves, fish, rotifers and shrimps) (2003) Int J Syst Evol Microbiol, 53, pp. 245-252Thompson, F.L., Iida, T., Swings, J., Biodiversity of vibrios (2004) Microbiol Mol Biol Rev, 68, pp. 403-431Thompson, F.L., Gevers, D., Thompson, C.C., Dawyndt, P., Naser, S., Hoste, B., Munn, C.B., Swings, J., Phylogeny and molecular identification of vibrios on the basis of multilocus sequence analysis (2005) Appl Environ Microbiol, 71, pp. 5107-5115Thompson, F.L., Gomez-Gil, B., Vasconcelos, A.T.R., Sawabe, T., Multilocus sequence analysis reveals that Vibrio harveyi and V.campbellii are distinct species (2007) Appl Environ Microbiol, 73, pp. 4279-4285Thompson, C.C., Vicente, A.C.P., Souza, R.C., Vasconcelos, A.T.R., Vesth, T., Alves Jr., N., Ussery, D.W., Thompson, F.L., Genomic taxonomy of vibrios (2009) BMC Evol Biol, 9, pp. 1-16Wang, H., Liu, J., Wang, Y., Zhang, X.H., Vibrio marisflavi sp.nov.,isolated from seawater (2011) Int J Syst Evol Microbiol, 61, pp. 568-573Waterhouse, A.M., Procter, J.B., Martin, D.M.A., Clamp, M., Barton, G.J., Jalview Version 2-a multiple sequence alignment editor and analysis workbench (2009) Bioinformatics, 25, pp. 1189-1191Wayne, L.G., Brenner, D.J., Colwell, R.R., Grimont, P.A.D., Kandler, O., Krichevsky, M.I., Moore, L.H., Murray, R.G.E., International Committee on Systematic Bacteriology.Report of the ad hoc committee on reconciliation of approaches to bacterial systematics (1987) Int J Syst Bacteriol, 37, pp. 463-464Willems, A., Doignon-Bourcier, F., Goris, J., Coopman, R., de Lajudie, P., de Vos, P., Gillis, M., DNA-DNA hybridization study of Bradyrhizobium strains (2001) Int J Syst Evol Microbiol, 51, pp. 1315-132
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
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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