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
Geology, Structure, and Detrital Zircon Geochronology of Central Blue Ridge, San Gabriel Mountains, California
Get PDFThe Blue Ridge schist body is a member of the larger widely distributed group of schist bodies known as the Pelona-Orocopia-Rand schists (POR). Blue Ridge and the other schists are generally thought to be composed of marine trench protoliths that were underplated beneath North America during flat slab subduction of the Farallon Plate. Mount Pinos, Sierra Pelona, Blue Ridge, and Orocopia Mountains schist bodies are generally accepted to have once been connected prior to dissection and offset along the San Andreas transform boundary. Although these schist bodies have been studied at various levels, Blue Ridge has received relatively little attention in terms of lihologic, structural, and geochronologic work. Subunits on Blue Ridge appear to be complexly interleaved or interbedded, contrasting with some previous interpretations that metabasites should exist in the basal portions, followed by metacherts, calc-silicates, and quartzofeldspathic schist in the upper portions (i.e. an intact sequence of oceanic plate overlain by calcareous and siliceous muds followed by turbidites or sandstones). Detailed mapping shows that these subunits are randomly distributed throughout the structural sections of the schist body. Even at basal to mid structural levels, quartzofeldspathic schist is ubiquitous, and interleaved or interbedded with all other subunits. Despite extensive analysis, there does not appear to be evidence qualitatively, for a systematic up-section variation in metamorphic grade. According to analyses of 56 thin sections, the majority of central Blue Ridge schist subunits were metamorphosed at lowermost amphibolite facies, or at the boundary between greenschist and amphibolite facies. This is consistent with published results on metamorphic grade of Blue Ridge. A subset of syn-metamorphic asymmetric folds in two locations appears to record shearing concomitant with subduction and extrusion of the schist body. One locality records top-to-SW and top-to-NE sense of shear, and a second locality records only top-to SW sense of shear after vertical axis rotations are performed. The resulting orientation restores to that of the convergence vector of the Farallon plate during the late Cretaceous if the Blue Ridge block is back rotated approximately 40–45 degrees. Additionally, two sets of map-scale folds exist in the study area. 1) A syn-metamorphic tight folding event with northerly trending fold hinges demonstrates that the maximum principal stress direction associated with syn-metamorphic folding varies from N78E-S78W to N73W-S73E before vertical-axis rotation. 2) A younger post-metamorphic open group of folds with WNW trending fold axes demonstrates that the maximum principal stress direction associated with the formation of these folds was N29E-S29W before vertical axis rotation. U-Pb geochronology results indicate that the Blue Ridge schist may be treated as a quasi-intact sedimentary sequence. Two independent structural sections at near basal to mid structural levels, show that the schist body appears to preserve an intact proto-stratigraphy that displays a younging trend up-section. Combined maximum depositional ages, indicated by youngest single grain (YSG) analysis, range from 88.3 ± 2.6 Ma to 75.6 ± 1.2 Ma (2σ uncertainty) up-section. Age vs. depth relations for the structural sections show remarkable congruence between the YSG's per sample and relative depth measurements, possibly due to extreme tectonic flattening of the schist. These results potentially allow for the analysis of detrital zircon provenance changes up-section through time.Detrital zircon analysis shows that the Blue Ridge schist body is most similar in provenance signature to the Sierra Pelona schist body, followed closely by the Mount Pinos schist body, lending further support for the proposed connection of the three schist bodies in the past. In contrast, the Orocopia Mountains schist body is sufficiently different in provenance signature from the Blue Ridge, Sierra Pelona, and Mount Pinos schist bodies, to call into question a contiguous origin or similar depocenter between them. Blue Ridge detrital zircon samples also appear to record the expected shifts in provenance occurring up-section through time that reflect the progressive evolution from outboard to inboard source detritus (i.e. the breaching of the Sierran-Peninsular Ranges Arc and allowance of detritus from the Mojave block and San Gabriel terrane to reach the continental margin) seen in forearc strata and pooled zircon data from the POR schists. In general, the sections show the progression of erosional detritus from dominantly the Sierran-Peninsular Ranges Arc at basal structural levels (88.3 Ma), followed by the first appearance of inboard detritus in the mid structural levels (81.8 Ma), and culminating with the marked increase of inboard detritus at the uppermost structural level (75.6 Ma). Assuming that the other schist bodies also preserve relatively intact quasi-stratigraphic sections, evaluation of published data sets from Mount Pinos and Sierra Pelona schist bodies show similar provenance development through time (if the samples are defined by the youngest single grain and are assumed to roughly represent the maximum depositional age of the structural level). It is acknowledged however, that this interpretation of the data relies on several assumptions that are based on the Blue Ridge sections, and that the data from Blue Ridge is limited in terms of the number of samples (7) as well as the low number of analyses per sample (24–72 grains). This study shows that marine trench protoliths of the Blue Ridge schist were deposited between 88.3 Ma and approximately 75.6 Ma (minimum), then deformed in a northeast-dipping subduction zone. Two generations of folds record syn-metamorphic Laramide subduction-related deformation, followed by a period of open folding that predated development of the San Gabriel-San Andreas transform fault system. The present-day orientation of fold hinges on Blue Ridge reflects counterclockwise block rotation of ~17 degrees during development of the restraining double bend in the San Andreas fault, and clockwise block rotation of ~40–45 degrees that may be the result of transrotation between the Punchbowl and San Andreas faults
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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