1,720,954 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Study of substrate and ink interaction during deinking of OWP
No full textThis thesis aims to determine the parameters that affect the deinkability of OWP resulting in low deinking yields and to study the application of environmentally friendly deinking methods, such as the application of enzymes. In this context, four laboratory experimental sets were conducted. The first experimental set (A) included laboratory preliminary experiments and testing of the effect of the substrate and of the ink on the deinking of OWP. The study of the deinking efficiency of OWP printed on copiers and laser printers was investigated during the second experimental set (B). The third experimental set (C) was focused on the investigation of the impact of toner composition, printing processes and pulping conditions on the deinking of office waste paper through the flotation process. Finally, the fourth experimental set (D) included the investigation of the effect of cellulases application on the deinking of OWP. This research has demonstrated the remarkably different deinkability of paper printed on different copiers and laser printers. It was proved that the presence of styrene-acrylate copolymers and iron oxides in the toner resulted in reduced deinkability. The low printing speed (which mostly applies in these cases) is considered an additional factor that leads to difficulties in the deinking process. Under those initial circumstances, large ink particles are formed during pulping, which often trap paper fibers, thus making the flakes unlikely to float. Therefore, in these cases, the total surface area of specks often exceeded 1000 mm2 per m2 deinked paper surface. Also, it was proven that the optical properties of the produced paper sheets varied according to the prevailing conditions of pulping. In particular, by increasing the temperature (from 40 °C to 60 °C), time (from 20 min to 40 min) and pulping consistencies (from 4.5 % to 7.5 %) separately or in combination, led to a decrease in the surface area of specks on the produced sheets of paper. It was observed that the deinking experiments using enzymes achieved generally better results in comparison with those in which the enzymes were previously deactivated. Despite the positive effect of activated enzymes as compared to deactivated, the application of enzymes appeared disadvantageous compared with the conventional deinking in terms of specks surface of the deinked paper sheets.Η παρούσα διδακτορική διατριβή έχει ως στόχο να προσδιορίσει τις παραμέτρους που επιδρούν στη δυσχέρεια της απομελάνωσης των χαρτιών που συνιστούν απορρίμματα γραφείου και να μελετήσει φιλικές προς το περιβάλλον μεθόδους απομελάνωσης, όπως την αξιοποίηση επιλεγμένων ενζύμων. Αποτελείται από τέσσερις ερευνητικούς κύκλους: Α’. προκαταρκτικά πειράματα και βασικός έλεγχος της επίδρασης του υποστρώματος και της μελάνης στην απομελάνωση χαρτιών γραφείου, Β’. μελέτη της αποτελεσματικότητας απομελάνωσης χαρτιών τυπωμένων σε φωτοαντιγραφικά μηχανήματα και εκτυπωτές laser, Γ’. μελέτη και αξιολόγηση της επίδρασης της θερμοκρασίας, της περιεκτικότητας και του χρόνου πολτοποίησης στην απομελανωσιμότητα χαρτιών τυπωμένων στο ίδιο φωτοαντιγραφικό μηχάνημα, και Δ’. εξέταση της συμβολής των ενζύμων στην απομελάνωση χαρτιών που συνιστούν απορρίμματα γραφείου. Στο πλαίσιο της συγκεκριμένης διδακτορικής διατριβής αποδείχθηκε η σημαντικά διαφορετική απομελανωσιμότητα που παρουσιάζουν χαρτιά τυπωμένα σε διαφορετικά φωτοαντιγραφικά μηχανήματα και εκτυπωτές laser. Οι κυριότερες περιπτώσεις μη απομελανωσιμότητας εστιάζονται στα ξηρογραφικά μελάνια που περιέχουν συμπολυμερή στυρενίου-ακρυλικού και οξείδια σιδήρου. Η χαμηλή ταχύτητα τύπωσης συχνά συνοδεύει τις συγκεκριμένες περιπτώσεις και θεωρείται ένας επιπλέον παράγοντας που οδηγεί σε δυσκολίες απομελάνωσης. Οι εν λόγω περιπτώσεις οδηγούν στο σχηματισμό, κατά την πολτοποίηση, μεγάλων σωματιδίων μελανιού, τα οποία συχνά εγκλωβίζουν ίνες χαρτιού, με αποτέλεσμα η επίπλευση των συσσωματωμάτων αυτών να καθίσταται απίθανη. Η αύξηση της έντασης των συνθηκών πολτοποίησης φάνηκε πως μπορεί να βελτιώσει σημαντικά την αποτελεσματικότητα της απομελάνωσης με τη μέθοδο της επίπλευσης, με την αύξηση της περιεκτικότητας να έχει τη μεγαλύτερη επίδραση. Τέλος, οι δοκιμές απομελάνωσης με τη χρήση ενζύμων παρουσίασαν καλύτερα αποτελέσματα σε σύγκριση με τις αντίστοιχες στις οποίες τα ένζυμα είχαν προηγουμένως απενεργοποιηθεί. Η όξινη ενζυμική επεξεργασία κατέληξε σε μειωμένη αποτελεσματικότητα απομελάνωσης εν συγκρίσει με την μη ενζυμική απομελάνωση. Η προσθήκη ΗΝΟ3 στο στάδιο της ενζυμικής επεξεργασίας μείωνε το περιεχόμενο του αιωρήματος σε CaCO3, η ύπαρξη του οποίου φαίνεται πως υποβοηθάει τη διεργασία της επίπλευσης στο να απομακρύνει τα μελάνια. Αντίθετα, η αλκαλική ενζυμική επεξεργασία οδηγούσε σε βελτίωση της απομελανωσιμότητας των χαρτιών γραφείου
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
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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