1,721,083 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
Surface coupled phononic resonators
No full textCes travaux de thèse visent à étudier des résonateurs mécaniques capables de confiner, contrôler et transporter l’énergie acoustique à l’échelle du micromètre. L’approche proposée consiste à exploiter la surface sur laquelle reposent les résonateurs et les phénomènes d’hybridation entre les ondes élastiques se propageant sur cette surface et les modes propres des résonateurs pour créer un couplage entre résonateurs. Dans un premier temps, les travaux entrepris prouvent, numériquement et expérimentalement, la capacité d’exciter un micro-résonateur sub-longueur d’onde grâce aux ondes de surface. Une seconde partie est consacrée à l’étude des mécanismes de couplage entre résonateurs adjacents.Au travers de caractérisations optiques donnant notamment accès à la forme des modes excités et de simulations numériques fondées sur la méthode des éléments finis, la présence de couplage entre résonateurs voisins et la possibilité de contrôler ce couplage en modifiant les paramètres géométriques des paires de résonateurs sont démontrées. En particulier, deux types de couplage sont mis en évidence en fonction de l’écartement entre les résonateurs : un couplage évanescent, s’apparentant au couplage dans un dimère plasmonique, et un couplage de type mécanique. Les études réalisées soulignent aussi la réciprocité des systèmes étudiés : il est possible de modifier le couplage en changeant les conditions d’excitation des résonateurs et réciproquement, les vibrations des résonateurs couplés peuvent affecter la vibration de la surface les supportant à des échelles très sub-longueurs d’onde.In the field of Phononics, most of the works reported up to now investigate the collective behaviour of periodic or aperiodic structures in order to control the propagation of elastic waves. In this thesis work, we propose to focus on the individual character of surface-coupled mechanical resonators with the aim to control and manipulate vibrations at the micron-scale. We investigate numerically and experimentally the coupling mechanisms involved between surface acoustic waves propagating on a substrate surface and mechanical modes of sub-wavelength phononic microresonators. Experimental investigations are conducted on isolated resonators and on pairs of neighboring resonators. The microresonator motion is measured using a laser scanning heterodyne interferometer which allows obtaining the frequency response and observing the vectorial behaviour of the elastic field both in the resonator and at the substrate surface.In the first part of this thesis work, we demonstrate the possibility to excite the first flexural natural mode of a resonator with surface acoustic waves. Then, the reported investigations reveal the existence of two coupling regimes in pairs of resonating pillars, depending on the separation distance between two resonators: an evanescent coupling regime, much reminiscent of what can be observed in a plasmonic dimer, and a classical mechanical coupling. Measurements performed at the substrate surface also highlight the interaction through the surface between the resonators.The obtained results prove that it is possible to control the elastic energy distribution at a deep sub-wavelength scale with isolated resonators, and reciprocally, that mechanical resonator systems can be manipulated by propagating surface acoustic waves, hence opening prospects for the dynamic and coherent control of mechanical vibrations at the micron-scale
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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