1,720,953 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
Development of ground and space based instrumentation for middle and upper atmospheric studies
Get PDFThe first objective of this research effort is to investigate the use of a high power-aperture Rayleigh lidar to measure neutral density and temperature in the upper atmosphere, into the lower thermosphere (>90 km). The scientific interest with this system is to obtain measurements of atmospheric tides, planetary and gravity wave amplitudes and phase in the lower thermosphere. Measurement of waves into the lower thermosphere is accomplished using Rayleigh lidar methods with high power-aperture (PA) products using new technology lasers and large collecting apertures, resulting in PA of 65-540 Wm2. This dissertation describes the simulation of high PA Rayleigh lidar systems and estimates their capability to measure gravity waves and tides in the mesosphere and lower thermosphere. Both traditional backscatter and bistatic (imaging) methods are simulated. Simulations show that substantive measurements can be achieved for characterizing gravity waves at altitudes >90 km and atmospheric tides at altitudes >100 km for this lidar system. Measurements of density and temperature to 10% precision are possible up to 115-130 km. A research and development effort funded by the NSF was pursued at the University of Illinois to develop a high-power Rayleigh lidar and explore the capabilities and challenges of implementing a high power-aperture (PA) Rayleigh lidar capable of measuring the neutral atmosphere at altitudes >110 km. Simulations comparing the capabilities of monostatic and bistatic lidar configurations for a high-PA lidar system were first performed, followed by a development effort to test a high-PA Rayleigh lidar. This dissertation details the first-light results of this lidar experiment, which achieves neutral atmosphere measurements up to 93 km altitude, the highest measurement to date for a bistatic Rayleigh lidar, based on a review of the literature. Methodologies for significantly improving these results in future studies are also discussed. This research effort demonstrates the capability of a bistatic Rayleigh lidar configuration for middle and upper atmospheric studies, which enables the use of new high-power, high pulse repetition frequency and continuous wave lasers that are unsuited for monostatic lidar systems. The potential of high power-aperture Rayleigh lidar in exploring the middle and upper atmosphere is shown in Gardner (2012), which simulates the performance of such a system using a 325W laser and an 8-meter telescope for a power-aperture product of 16,336 Wm2. The second objective of this research effort is to design an instrument to measure atmospheric gravity waves in the mesosphere as part of the Lower Atmosphere/Ionosphere Coupling Experiment (LAICE) CubeSat mission. Measurements of atmospheric gravity waves are obtained by remote sensing of mesospheric airglows during the nighttime portion of the orbit. This instrument is designed to collect measurements to determine intrinsic wave parameters of observed atmospheric gravity waves. These derived wave parameters must be of sufficient quality for coupling studies that are the scientific goal of the LAICE mission. The instrument must also meet its performance requirements in the restrictive mass, volume, power, and communication limits of a CubeSat, which in this case is a 6U CubeSat to accommodate flying two scientific payloads. An in-situ measurement instrument payload was developed at the Virginia Polytechnic Institute, while the remote sensing photometer instrument payload and the CubeSat bus were developed at the University of Illinois. This dissertation details the design of the photometer instrument for the LAICE mission and the expected performance with respect to derivation of mesospheric gravity wave parameters from airglow measurements. The LAICE mission is a groundbreaking CubeSat mission in low Earth orbit focused on understanding how atmospheric gravity waves generated by weather systems in the lower atmosphere propagate and deliver energy and momentum into the mesosphere, lower thermosphere, and ionosphere. These waves are an important facet of atmospheric physics, but their effects in the thermosphere and ionosphere are under-explored. They strongly influence the dynamics of the media through which they travel via momentum and energy deposition at altitudes well above their source regions, and they can seed the development of plasma instabilities that scintillate and disrupt radio propagation. LAICE will focus on these waves and attempt to connect their causes and effects in three widely different altitude ranges, substantially adding to our knowledge of a critical coupling process between disparate atmospheric regions.Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-02-04 without embargo termsThe student, John Westerhoff, accepted the attached license on 2024-05-07 at 14:26.The student, John Westerhoff, submitted this Dissertation for approval on 2024-05-07 at 14:37.This Dissertation was approved for publication on 2024-05-14 at 16:26.DSpace SAF Submission Ingestion Package generated from Vireo submission #20782 on 2025-02-04 at 21:03:1
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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