1,720,972 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
Development of Suspensions for the GEO 600 Gravitational Wave Detector
Get PDFEinstein, in his 1916 Theory of General Relativity, predicted the existence of gravitational waves. These can be thought of as ripples or waves m the curvature of space-time. So far there has only been indirect evidence of the existence of gravitational waves. Scientists around the world are working on a number of gravitational wave detectors. The direct detection of gravitational waves will provide information about astrophysical processes and sources that produce them. Gravitational waves are quadrupole in nature and produce a tidal strain in space. However their interaction with matter is very weak, making them difficult to detect. Gravitational waves emitted by violent astrophysical events are predicted to produce strains at the Earth of the order of 10e-21 to 10e-22 at frequencies accessible to ground based detectors (~ 10 Hz to a few kHz). One method for detecting these strains in space is based on the Michelson interferometer. The gravitational waves group at the University of Glasgow led by Prof J. Hough is working with collaborators from the Max-Planck-Institut fiir Quantenoptik at Hannover and Garching, the University of Hannover, the University of Cardiff and the Albert-Einstein-Institut at Potsdam on a project called GEO 600 to build a laser interferometer with 600 m arm length. The GEO 600 gravitational wave detector is currently in an advanced stage of construction in Germany. The GEO 600 (German-British) detector is designed to operate down to 50 Hz. The sensitivity limit at this frequency is set by the thermal noise from the internal modes of the fused silica test masses. The strain sensitivity limit from thermal noise is expected to be 2x10e-22 /√Hz at a frequency of 50 Hz. The design goal for the seismic isolation system is to achieve a noise level a factor of 10 lower than this. To ensure that the detector sensitivity is not limited by seismic noise above 50 Hz a significant degree of isolation has to be provided for each test mass. It is expected that this level of isolation can be obtained with a combination of several elements in series: a two-layer isolation stack consisting of one active and one passive stage, and a triple pendulum, the final stage of which is the test mass which will be made from fused silica (mass ~ 6 kg). The triple pendulum will incorporate two stages of cantilever springs in order to enhance the vertical isolation and will use fused silica fibres in the lower pendulum stage in order to minimise thermal noise from the pendulum modes. The work contained in this thesis covers the design, modelling, construction and testing of various aspects of suspension systems for isolating optical components in ground based interferometric gravitational wave detectors, and in particular for GEO 600. The first suspension system considered was for the subsidiary mirrors that form the mode-cleaner cavities. These take the form of high finesse Fabry-Perot cavities used to reduce the geometry perturbations of the laser beam which is used to illuminate the interferometer. The mode-cleaner optics have less stringent requirements for seismic isolation; they therefore do not require the extra vertical isolation provided by the cantilever spring stages. Further work in this thesis involved the design and testing of the various stages of this suspension system. This includes the modelling of a suitable platform from which to suspend the various optics, the construction and testing of a double pendulum, and the testing of a two-layer passive isolation stack. The various isolation stages, for the mode-cleaner, were installed at the GEO 600 site in the summer of 1999. As stated above, for the main test mirrors a triple pendulum is required. In order to understand the mechanics of such a pendulum it was necessary firstly to model a single pendulum by calculating the equations of motion for six degrees of freedom. A theoretical model of a triple pendulum was obtained, again by writing down the equations of motion. MATLAB was used to predict, for example, the resonant mode frequencies, and the response of the triple pendulum to the application of control for active damping. Using this analysis the design of a well-damped triple pendulum with good coupling between the various stages can be achieved. A prototype triple pendulum was set-up in Glasgow in order to verify the predictions from the model. Further experiments on the individual stages of the overall suspension system in Glasgow, including the testing of the cantilever blades, indicated that a seismic noise level which is a factor of ~ 4 lower than the thermal noise level at 50 Hz should be achievable with the current design. At the time of writing the main suspension systems were beginning to be installed in the GEO 600 detector
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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