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
Detection of pharmaceutically active compounds using yeast cells of the species Saccharomyces cerevisiae applied to an electrochemical cell (biosensor)
Get PDFZa detekcijo različnih farmacevtskih učinkovin smo uporabili impedančni biosenzor, ki je temeljil na predhodno razviti in optimizirani elektrokemijski celici z biološko komponento kvasovk vrste Saccharomyces cerevisiae. Za izdelavo elektrod smo uporabili nerjavno jeklo tipa 316, iz katerega smo sestavili trielektrodni elektrokemijski sistem v RCW side-by-side konfiguraciji. Pripravili smo različno koncentrirane raztopine acetaminofena, naproksena in izoniazida ter jih tekom meritev dodajali v zaprt elektrokemijski sistem. Stabilnost elektrokemijskega sistema smo ocenili z merjenjem potenciometrije pri odprtem tokokrogu (OCP), z elektrokemijsko impedančno spektroskopijo (EIS) pa smo spremljali odziv kvasovk vrste Saccharomyces cerevisiae na delovni elektrodi ob odsotnosti (0,9 % NaCl) in prisotnosti farmacevtskih učinkovin. Impedančni odziv sistema smo predstavili z Nyquistovimi in Bodejevimi diagrami, rezultatom pa izračunali standardni odklon, natančnost in točnost. Za vsako izmed farmacevtskih učinkovin smo oblikovali kalibracijsko krivuljo z R2 vrednostjo nad 0,95 ter izračunali mejo zaznavnosti (LOD). Za preučevanje vpliva farmacevtskih učinkovin na kvasovke vrste Saccharomyces cerevisiae smo izvedli eksperiment z rastno krivuljo, pri kateri smo spremljali spreminjanje optične gostote pri 600 nm (OD600) s časom po dodatku kontrole (0,9 % NaCl) in različno koncentriranih raztopin farmacevtskih učinkovin. Ugotovili smo, da je naš biosenzor zmožen detekcije učinka različnih koncentracij acetaminofena, naproksena in izoniazida. Dokazali smo, da z naraščanjem koncentracije naštetih farmacevtskih učinkovin pada impedanca elektrokemijskega sistema. S pripravo rastnih krivulj smo dokazali, da dodatek farmacevtskih učinkovin zavira rast celic kvasovk. Razvit biosenzor predstavlja cenovno ugodno in obetavno alternativo za hitrejšo in enostavnejšo detekcijo farmacevtskih učinkovin v vzorcih odpadne vode z uporabo živih celic kot biološke prepoznavne komponente.A previously developed and optimised electrochemical cell was used as an impedimetric biosensor, utilizing yeast Saccharomyces cerevisiae as a biological recognition element for the detection of different pharmaceutically active compounds. Electrodes were made from type 316 stainless steel and were implemented in a three-electrode system in the RCW side-by-side configuration. Acetaminophen, naproxen, and isoniazid solutions of varying concentrations were prepared and applied to the closed electrochemical system. The stability of the electrochemical system was evaluated by measuring the open circuit potential (OCP), and electrochemical impedance spectroscopy (EIS) was employed for tracking the response of the yeast Saccharomyces cerevisiae on the working electrode in the absence (0,9% NaCl) and in the presence of pharmaceutically active compounds. The impedimetric response of the system was presented using Nyquist and Bode diagrams, and the results\u27 standard deviation, precision, and accuracy were calculated. Moreover, we calculated the limit of detection (LOD) and devised a calibration curve for each of the studied compounds with R2 values above 0,95. To study the effect of pharmaceutically active compounds on the yeast Saccharomyces cerevisiae, an experiment using growth curves was conducted, which monitored the changes in optical density at 600 nm (OD600) over a specific time-period after the addition of the control (0,9% NaCl) and different concentrations of pharmaceutically active compounds. We found that the studied biosensor could detect different concentrations of acetaminophen, naproxen, and isoniazid, while confirming that the impedance of the electrochemical system decreases as the concentration of the compounds increases. Using growth curves, we confirmed that pharmaceutically active compounds lead to the growth inhibition of Saccharomyces cerevisiae yeast cells. The developed biosensor presents an interesting and affordable alternative for rapid and simplified detection of pharmaceutically active compounds in wastewater using living cells as the biological recognition element
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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