1,721,035 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Full text linkWe 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
Self-assembly silicon nanowires in nanoporous matrix of alumina obtained with nanoimprint process
No full textAvec l'augmentation du nombre de dispositifs utilisant des nanostructures, tels les nanofils pour les systèmes photovoltaïques, les détecteurs, etc., il devient nécessaire de développer des techniques de fabrication de réseau d'objets de dimensions nanométrique à faible coût. Dans cette étude, nous utilisons les propriétés d'auto-assemblage combinées avec des méthodes « descendantes » pour créer des réseaux de nanostructures très denses et très organisés. En effet, nous proposons de produire des réseaux hexagonaux parfaits d'alumine poreuse (AAO) et de les utiliser pour la croissance confinée de fils de silicium (Si) par la technique de dépôt chimique en phase vapeur (CVD).L'AAO est naturellement obtenue par oxydation de l'aluminium dans un acide, mais ce processus seul n'apporte qu'une organisation des pores très faible. Nous présentons un procédé innovant utilisant la lithographie par nano-impression thermique pour pré-texturer l'aluminium avant son anodisation. Ainsi, nous obtenons des réseaux poreux hexagonaux parfait sur des surfaces allant jusqu'à 4 cm ². Toutes les caractéristiques géométriques de la membrane poreuse peuvent être ajustées en faisant varier les paramètres expérimentaux de l'anodisation. En outre, pour augmenter la densité du réseau et réduire le coût de fabrication du moule d'impression, nous avons développé des structures originales avec une croissance mixte de pores guidées et générer naturellement.Afin d'étudier les caractéristiques de ces réseaux et suivre leur évolution au cours de leur formation, nous présentons les résultats d'une étude de diffusion des rayons X aux petits angles réalisée in situ pendant la formation de l'AAO.L'AAO est finalement utilisée comme matrice guide pour la croissance auto-organisée de fils de Si par CVD. Nous présentons donc des réseaux hexagonaux parfaits de nanofils crus perpendiculairement à la direction des substrats de silicium. Les différentes étapes du procédé, du dépôt de catalyseur à la croissance des fils sont présentées. Grâce à cette technique, nous obtenons des densités de fils allant jusqu'à 9.109 cm-2 et la dispersion des diamètres est meilleure que lors d'une croissance colloïdale (CVD). La composition chimique et l'orientation cristalline des nanofils confirme qu'ils sont en silicium et que nous avons à la fois des orientations et . Nous avons étudié également la conductivité entre le sommet des fils et le substrat grâce à la technique du microscope à force atomique conducteur.With the increased number of devices using functional nanostructures, e.g nanowires for photovoltaic systems, detector etc, it becomes of great importance to develop low-cost and versatile fabrication of systems with nano-objects. In this study, self-assembly properties combined with top-down methods were used to create highly dense and organized nanostructures. Indeed, flawless hexagonal porous anodic alumina arrays (PAA) were successfully used as a template for the epitaxial Silicon (Si) nanowires (NW) growth in a chemical vapor deposition reactor (CVD).PAA is naturally obtained by oxidation of aluminum in acid; however this simple process brings a poor pores organization. We present an innovative route using Thermal NanoImprint Lithography previous to aluminum anodization to prepare perfect hexagonal nanopore array on large surface (4 cm²). All the geometrical characteristics of the porous membrane can be adjusted by varying experimental parameters. Furthermore, to increase the density of the array and reduce the fabrication cost of the imprint mould, original structures with a mixed growth of NIL-guided pores and generation of naturally-guided pores (induced pores) have been developed. Shapes of the pores can be modified varying the electrolyte.To know the characteristic of these arrays and their evolution during formation, we will present the results of the hitherto unseen In Situ study under Grazing Incidence Small Angle X-ray Scattering of PAA formation.The PAA is finally used as templates for the self-organized Si NW growth in a CVD reactor. Hexagonal nanowire arrays grown perpendicularly to silicon substrates were successfully produced. The different process steps from the catalyst deposition to the planarization of the array are presented. The quality of the final silicon array is discussed. Densities up to 9*109 NW.cm-2 and diameter dispersion better than colloidal growth are achieved. The chemical composition and the crystalline orientation of the nanowires confirms the nanowires are in silicon and a mix between and orientation. We also measured the conductivity between the top of the vertical nanowire and the substrate with conductive atomic force microscopy
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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