1,720,956 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
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
A New Species Of Brachycephalus From The Atlantic Rain Forest In São Paulo State, Southeastern Brazil (amphibia: Anura: Brachycephalidae)
No full textWe describe a new toadlet species of the genus Brachycephalus from the Atlantic rain forest in the State of São Paulo, in southeastern Brazil. Specimens were collected from the leaf litter at approximately 750 m above sea level. The new species differs from its congers by the following combination of characteristics: SVL in adult males 11.3-12.1 mm and SVL in adult females 13.4-14.2 mm, skin on head and dorsum with co-ossification, general color in life orange with dorsal greenish irregular markings covered with small dark spots and dots, skull hyperossified, spinal processes of sacral and pre-sacral vertebrae hyperossified, and hyperossification of the distal end of the process of the fourth vertebra. The new species shares with most other Brachycephalus species remarkable traits, such as miniaturization and hyperossification of the skeleton. The new species probably occurs in isolation in highlands of the Atlantic Forest. © 2010 by the American Society of Ichthyologists and Herpetologists.3410420Alves, A.C.R., Ribeiro, L.F., Haddad, C.F.B., Reis, S.F., Two new species of Brachycephalus (Anura: Brachycephalidae) from the Atlantic forest in Paraná state, southern Brazil (2006) Herpetologica, 62, pp. 221-233Alves, A.C.R., Sawaya, R., Reis, S.F., Haddad, C.B.F., A new species of Brachycephalus (Anura: Brachycephalidae) from the Atlantic rain forest in São Paulo state, southeastern Brazil (2009) Journal of Herpetology, 43, pp. 212-219Bookstein, F.L., (1991) Morphometric Tools for Landmark Data, , Cambridge University Press, New YorkBookstein, F.L., Biometrics, biomathematics and the morphometric synthesis (1996) Bulletin of Mathematical Biology, 58, pp. 313-365Catros, S., Pothuaud, L., Dard, M., Fricain, J.C., Collagen fibrils of human acellular extrinsic fiber cementum (2008) Journal of Periodontology, 79, pp. 1095-1100Clemente-Carvalho, R.B.G., Antoniazzi, M., Jared, C., Haddad, C.F.B., Alves, A.C.R., Rocha, H.S., Pereira, G.R., Reis, S.F., Hyperossification in miniaturized toadlets of the genus Brachycephalus (Amphibia: Anura: Brachycephalidae): Microscopic structure and macroscopic patterns of variation (2009) Journal of Morphology, 270, pp. 1285-1295Clemente-Carvalho, R.B.G., Monteiro, L.R., Bonato, V., Rocha, H.S., Pereira, G.R., Oliveira, D.F., Lopes, R.T., Reis, S.F., Geographic variation in cranial shape in the pumpkin toadlet (Brachycephalus ephippium): A geometric analysis (2008) Journal of Herpetology, 42, pp. 176-185Fabrezi, M., Morphological evolution of Ceratophryinae (Anura, Neobatrachia) (2006) Journal of Zoological Systematics and Evolutionary Research, 44, pp. 153-166Frost, D.R., (2007) Amphibian Speciesofthe World: An Online Reference, , http://research.amnh.org/herpetology/amphibia/index.html, Version 3.0 22 August 2004, Electronic Database available at, American Museum of Natural History, New YorkGiaretta, A.A., (1999) Diversidade e Densidade de Anuros de Serapilheira Num Gradiente Altitudinal na Mata Atlântica Costeira, , Unpubl. Ph. D. thesis, Universidade Estadual de Campinas, Campinas, São Paulo, BrazilGiaretta, A.A., Sawaya, R.J., Second species of Psyllophryne (Anura: Brachycephalidae) (1998) Copeia, 1998, pp. 985-987Goodall, C.R., Procrustes methods in the statistical analysis of shape (1991) Journal of the Royal Statistical Society Series B., 53, pp. 285-339Hanken, J., Adaptation of bone growth to miniaturization of body size (1993) Bone Growth, pp. 79-104. , B. K. Hall ed.. CRC Press, Boca Raton, FloridaHanken, J., Wake, D.B., Miniaturization of body size: Organismal consequences and evolutionary significance (1993) Annual Review of Ecology and Systematics, 24, pp. 501-519Hedges, S.B., Duellman, W.E., Heinicke, M.P., New World direct-development frogs (Anura: Terrarana): Molecular phylogeny, classification, biogeography, and conservation (2008) Zootaxa, 1737, pp. 1-182Izecksohn, E., Novo gênero e nova espécie de Brachycephalidae no estado do Rio de Janeiro, Brasil (1971) Boletim Do Museu Nacional Zoologia, 280, pp. 1-12Jared, C., Antoniazzi, M.M., Navas, C.A., Katchburian, E., Freymüller, E., Tambourgi, D.V., Rodrigues, M.T., Head co-ossification, phragmosis and defence in the casque-headed tree frog Corythomantis greeningi (2005) Journal of Zoology (London), 265, pp. 1-8Klingenberg, C.P., Barluenga, M., Meyer, A., Shape analysis of symmetric structures: Quantifying variation among individuals and asymmetry (2002) Evolution, 56, pp. 1909-1920Krzanowski, W.J., (1989) Principles of Multivariate Analysis: A User's Perspective, , Clarendon Press, OxfordKrzanowski, W.J., Radley, D., Nonparametric confidence and tolerance regions in canonical variates analysis (1989) Biometrics, 45, pp. 1163-1173Larson, P.M., Chondrocranial morphology and ontogenetic allometry in larval Bufo americanus (Anura, Bufonidae) (2004) Zoomorphology, 123, pp. 95-106Lingnau, R., Canedo, C., Pombal Jr., J.P., A new species of Hylodes (Anura: Hylodidade) from the Brazilian Atlantic Forest (2008) Copeia, 2008, pp. 595-602Pimenta, B.V.S., Bérnils, R.S., Pombal Jr., J.P., Amphibia, Anura, Brachycephalidae, Brachycephalus hermogenesi: Filling gap and geographic distribution map (2007) Check List, 3, pp. 277-279Pombal Jr., J.R., A new species of Brachycephalus (Anura: Brachycephalidae) from Atlantic rain forest of southeastern Brazil (2001) Amphibia-reptilia, 22, pp. 179-185Pombal Jr., J.P., Gasparini, J.L., A new Brachycephalus (Anura: Brachycephalidae) from the Atlantic Rainforest of Espírito Santo, southeastern Brazil (2006) South American Journal Herpetology, 1, pp. 87-93Pombal Jr., J.P., Wistuba, E.M., Bornschein, M.R., A new species of brachycephalid (Anura) from the Atlantic rain forest of Brazil (1998) Journal of Herpetology, 32, pp. 70-74Ribeiro, L.F., Alves, A.C.R., Haddad, C.F.B., Reis, S.F., Two new species of Brachycephalus Günther, 1858 from the state of Paraná, southern Brazil (Amphibia, Anura, Brachycephalidae) (2005) Boletim Do Museu Nacional, 519, pp. 1-18Ringrose, T.J., Alternative confidence regions for canonical variate analysis (1996) Biometrika, 83, pp. 575-587Rocha, H.S., Pereira, G.R., Anjos, M.J., Faria, P., Kellermann, G., Pérez, C.A., Tirao, G., Lopes, R.T., Diffraction enhanced imaging and X-ray fluorescence microtomography to analyze biological samples (2007) X-ray Spectrometry, 36, pp. 247-253Rohlf, F.J., Relative-warp analysis and an example of its application to mosquito wings (1993) Contributions to Morphometrics, pp. 131-159. , L. F. Marcus, E. Bello, and A. Garcia-Valdecasas eds.. Museo Nacional de Ciencias Naturales, MadridRohlf, F.J., Morphometric spaces, shape components and the effect of linear transformation (1996) Advances in Morphometrics, pp. 117-129. , L. F. Marcus, M. Corti, A. Loy, G. Naylor, and D. E. Slice eds.. Plenum Press, New YorkRohlf, F.J., (2004) Tps Series Softwares, , http://life.bio.sunysb.edu/morph, Available atSheets, H.D., (2003) IMP-integrated Morphometrics Package, , Department of Physics, Canisius College, Buffalo, New YorkSilva, M.A.J., Merzel, J., Alveolar bone Sharpey fibers of the rat incisor in normal and altered functional conditions examined by scanning electron microscopy (2004) Anatomical Record, 279, pp. 792-797Stayton, C.T., Ruta, M., Geometric morphometrics of the skull roof of stereospondyls (Amphibia: Temnospondyli) (2006) Palaeontology, 49, pp. 307-337Trueb, L., Alberch, P., Miniaturization in the anuran skull: A case study of heterochrony (1985) Vertebrate Morphology, pp. 113-121. , H. R. Duncker and G. Fleischer eds.. 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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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