1,720,973 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
Les amyloïdoses : détection à l'aide de nanoparticules et propriétés optiques originales
No full textAmyloidosis are diseases characterised by self-agregation of misfolded proteins in fibrillary forms, called amyloid fibrils. They are associated with many diseases, and their early diagnosis remains a clinical challenge. In this work, we show the targeting and the detection of amyloid fibrils, from in vitro to in vivo experiments in mice models, useful for early diagnostic of amyloidosis. For that purpose, we use multimodal nanoparticles, further functionalized with specific molecules against amyloid fibrils. This multimodality for imaging (fluorescence, MRI, PET) represent a breakthrough in modern medicine, to add structural and functional informations. After negative toxicity tests on various cell lines, these nanoparticles have been tested on three different amyloid fibrils, formed with amyloid β(1-42) peptide (Alzheimer’s disease), amylin (type II diabetes mellitus), or mutated Val30Met transthyretin (familial polyneuropathy). As it is shown by spectroscopy and surface plasmon resonance experiments, nanoparticles grafted with generic targeters (Pittsburgh compound B or a nanobody) target the three amyloid fibrils, with good affinity, whereas nanoparticles vectorised with peptides show specific targeting for amyloid β(1-42) or Val30Met mutated transthyretin, but with lower affinity. The targeting by nanoparticles have been confirmed ex vivo on pathological tissues with each amyloid burden, thanks to fluorescence microscopy. Generic nanoparticles have been injected in Alzheimer’s mice model, and the monitoring in vivo by IRM and post-mortem by optical microscopy supposed a targeting of amyloid β(1-42) aggregates in brain. Furthermore, we demonstrate the possibility to detect amyloid fibrils without labelling. Spectroscopic measurements show original, and specific optical properties of amyloid fibrils, around the UV-visible and the near infra-red regions. Interestingly, these properties are also observed on pathological tissues by ex vivo fluorescence microscopy, and in vivo ongoing analysis by photoacoustic imagery and real-time imaging seems to be very promising. By multimodality of non-toxic grafted nanoparticles or by intrinsic properties of amyloid fibrils suggesting completely non-invasive tests, these two strategies can be useful for early diagnostic of amyloidoses in humans.Les amyloïdoses sont des maladies caractérisées par l’agrégation structurée de protéines, sous forme de fibres amyloïdes. Le diagnostic précoce de ces maladies représente un enjeu important, pour la prise en charge de nombreuses pathologies associées. Dans ce travail, nous avons montré le ciblage et la détection de plusieurs fibres amyloïdes, de l’in vitro à l’in vivo. Pour cela, nous avons utilisé des nanoparticules multimodales pour l’imagerie médicale (TEP, IRM), greffées avec diverses molécules ciblant les fibres. Trois types de fibres amyloïdes ont été testées, formées à partir du peptide amyloïde β (maladie d’Alzheimer), d’amyline (diabète de type 2), et de la transthyrétine (polyneuropathie familiale). Comme montré par des techniques de spectroscopie et de résonance plasmonique de surface (fluorescence et Biacore), des nanoparticules génériques (dû au greffage du Pittsburgh compound B ou d’un nanocorps) ciblent avec une bonne affinité les trois types de fibres in vitro, tandis que des nanoparticules spécifiques (dû au greffage de peptides) ciblent avec une affinité moindre les fibres d’amyloïde β ou de transthyrétine. Le ciblage et la détection des dépôts amyloïdes par les nanoparticules ont été confirmés par microscopie à fluorescence, sur des tissus de souris présentant chacune des trois maladies. Le suivi par imageries in vivo (par IRM) et post-mortem (par microscopie optique), après injection de nanoparticules génériques chez la souris Alzheimer, supposent un ciblage des dépôts amyloïdes intracérébraux. Par ailleurs, nous avons détecté les fibres amyloïdes sans aucun marquage. Des études spectroscopiques in vitro ont permis de montrer des propriétés luminescentes intrinsèques des fibres amyloïdes, dans l’UV-visible et le proche infrarouge. Ces caractéristiques ont été observées sur des coupes de tissus de cerveau de souris Alzheimer par microscopie à fluorescence, et les études in vivo en cours semblent prometteuses (par imagerie photo-acoustique, et en temps résolu). Que cela soit par l’utilisation de nanoparticules fonctionnalisées multimodales, ou de propriétés intrinsèques des fibres amyloïdes suggérant une détection complètement non-invasive, ces deux stratégies innovantes semblent adaptées pour le diagnostic précoce des amyloïdoses chez l’Homme
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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