1,720,955 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
Comparison of dental pulp status assessment with magnetic resonance imaging, histological analysis and clinical diagnostic tests
No full textZa uspešno zdravljenje vitalnih zob zaradi poškodbe ali kariesa je pomembna pravilna diagnoza stanja zobne pulpe. Ob kliničnem delu v ta namen uporabljamo posredne diagnostične metode, katerih rezultati pa so podrejeni subjektivni oceni terapevta ali bolnika. Z delom smo primerjali uporabnost novih in klasičnih neinvazivnih preiskovalnih metod za oceno stanja zobne pulpe s histološko analizo struktur zobne pulpe in stopnjo vnetja glede na napredovalost kariozne lezije. Uporabili smo metode slikanja z magnetno resonanco (MR), merjenje zasičenosti hemoglobina s kisikom v arterijski krvi (SpO2) ter test občutljivosti na električne dražljaje. Rezultate smo primerjali tudi glede na stopnjo razvoja zobne korenine.
V študijo smo vključili 26 zob preiskovancev, starih od 11 do 19 (14,3 ± 2,4) let. Pred izdrtjem zob smo opravili meritve s testom občutljivosti na električni dražljaj, pulznim oksimetrom z merjenjem SpO2 ter MR slikanje zoba. Zabeležili smo stopnjo kariozne lezije po ICDAS klasifikaciji. Po izdrtju smo histološko analizirali vsebnost žil, kolagenskih vlaken, osnovne snovi in živčnih vlaken zobne pulpe. Pridobljene rezultate smo statistično korelirali z rezultati MR preiskave (relaksacijskimi časi pri T2 kartiranju ter vrednostmi za intenziteto signala pri pulznem poredju PROTON), vrednostmi SpO2 ter meritvami praga zaznave električnih dražljajev. Meritve SpO2 so statistično značilno pozitivno korelirale z volumsko gostoto žilja (p = 0,0182) in negativno z volumsko gostoto preostalega tkiva v pulpi (p = 0,00156). Meritve praga zaznave električnih dražljajajev so negativno korelirale z oživčenostjo pulpe (p = 0,0328). Večjo gostototo oživčenosti smo ugotovili v skupini zob z zaprtim apeksom (p = 0,0268). Meritve SpO2 so značilno negativno korelirale s T2 relaksacijskim časom (p = 0,0446). Pozitivno korelacijo med stopnjo napredovalosti kariozne lezije po ICDAS smo dokazali pri infiltraciji pulpe z makrofagi (p = 0,0284). Rezultati so pokazali pozitivno korelacijo med T2 relaksacijskim časom in vnetno infiltacijo z limfociti T (p = 0,0183). Rezultati študije nakazujejo, da je za oceno prekrvljenosti zobne pulpe najbolj natančna uporaba pulzne oksimetrije, za oceno oživčenosti pa vrednost praga zaznave električnih dražljajev. Vnetni odziv zobne pulpe z infiltracijo makrofagov narašča z napredovalostjo kariozne lezije. Vnetno infiltracijo pulpe z limfociti T se najbolje oceni z MR sliko zoba z uporabo T2 kartiranja.To obtain an accurate diagnosis of vital pulps in traumatised or cariously exposed teeth is a crucial step in order to achieve successful treatment. For such purpose, several indirect methods of pulp testing methods are used in clinical practice, which unfortunately only provide subjective results relied on patients\u27 symptoms. The aim of our study was to evaluate non-invasive sensitivity and vitality tests for assessment of pulp tissue status, not yet used in clinical practice, in comparison to histological analysis of pulp tissue\u27s components and inflammatory infiltration, regarding the progression of carious lesions. The methods used were magnetic resonance imaging (MRI), measurement of pulp tissue oxygenation using pulse oximetry (SpO2) and electrical sensibility test. Results were also compared between teeth having closed or open root apices. The study included 26 teeth of individuals aged between 11 and 19 (mean 14.3 ± 2.4). Before extractions, measurements of electrical sensitivity, SpO2 and MRI were performed. Levels of potential carious lesion progression were assessed on tooth surfaces using ICDAS (International Caries Detection and Assessment System). After extractions, histological analysis of vascularity, ground substance and collagen fibers presence as well as innervation of pulp tissue was preformed. These results were correlated with those of MRI (relaxation times of T2 mapping), SpO2 values and measurements of patients\u27 electrical sensitivity threshold. SpO2 values statistically positively correlated with vascular volume density (p = 0.0182) and negatively with the volume density of residual pulp tissue (p = 0.00156). Measurements of patients\u27 electrical sensitivity threshold negatively correlated with pulp innervation density (p = 0.0328). Teeth with closed apices were more densely innervated compared to group of teeth with open apices (p = 0.0268). SpO2 values negatively correlated with T2 relaxation times (p = 0.0446). Positive correlation between the level of carious lesion progression, assessed via ICDAS, and macrophage infiltration of pulp was found (p = 0.0284). Positive correlation was also found between T2 relaxation times and T lymphocyte pulp infiltration (p = 0.0183). The results of our study imply that the most appropriate method for assessment of vascularity of pulp tissue is pulse oximetry, and of innervation is an electrical sensibility test. Inflammatory response of pulp tissue infiltration with macrophages increases with progression of carious lesions. Inflammatory infiltration with T lymphocytes is best assessed with MRI using T2 mapping
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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