1,720,966 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
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
Conjugated polymer bio-hybrid interfaces for artificial retina and light-control of living cells
No full textThis thesis is concerned with the design, realization and opto-electronic characterization of a bio-hybrid interface, based on semiconducting polymers, presented as a new generation of Artificial Retina model and a novel platform for light-control and stimulation of living cells. Bioelectronics is a fast-growing field. It concerns the interface between electronics and biology. It has the potential to significantly affect healthcare and medicine by introducing scientific breakthroughs in medical therapies or prosthetic devices, improving lives of people with disabilities and diseases. Organic electronic materials are largely used in bioelectronics. In fact, these materials can overcome limitations of rigid standard electronic matter due to their unique features such as the “soft” nature, the ability to conduct ions, and biocompatibility. Nowadays there is a novel emerging field in this scenario: optobio electronics. Among organic electronic materials, there are light sensitive conjugated polymers. Semiconducting polymers used as photoactive layers claiming biocompatibility can offer excellent optoelectronic and mechanical properties such as visible light absorption, solution processability, the possibility of using flexible substrates, and easy tunability of color sensitivity. Thus, light sensitive conjugated polymers have been largely investigated as new interfaces for optical modulation of bioelectrical activity in several types of in vitro cell cultures, such as primary neurons and astrocytes, and in tissues, mostly explanted retinas from different animal models. This thesis presents a novel concept of bio-hybrid opto-electronic device. It is a new interface for in vitro light-control and stimulation of living cells and for investigating Artificial Retina models with the aim of sight restoration. The approach has been to investigate the double aspect of bioelectronics based on photosensitive biocompatible organic polymers i.e. the stimulation and the detection of biological signals both at the cellular and tissue level. The main objectives of this work are detailed in six chapters, as described below: Chapter 1: The basic concepts about biological systems are reviewed. Living cells and the plasma membrane, the retina and retinal diseases are briefly introduced. The main principles behind the bioelectricity and electrophysiology are discussed. To contextualize the work a state of art on electrical stimulation of retina and the visual prosthetic devices, based on inorganic electronics, which have had already a clinical trial is performed. Chapter 2: Organic Bioelectronics fundamentals are reviewed. The new opto-bio electronic field is introduced with special highlight on semiconducting polymers. An introduction on photovoltaic semiconducting polymers and a brief description of the occurring photovoltaic process are discussed. Then a state of the art analysis on semiconducting polymers interfaced with biological systems is discussed, with a focus on the artificial retinas studies using organic semiconductors. The concept of bio-hybrid device is introduced. Chapter 3: The experimental tools and techniques used for the design, fabrication and characterization of the conjugated polymer bio-hybrid device are reviewed. Chapter 4: The bio-hybrid photovoltaic device working principles and optoelectrical characterization are presented. The device optimization as a color-sensitive conjugated polymer ink-jet-printed pixelated artificial retina model is described. Finally, a water transfer method as a proof of concept for a possible artificial retina implantation is introduced. Thus, possible future application in tissue engineering and visual prosthesis are discussed. This work was in collaboration with Advanced Technology Institute, Department of Electrical and Electronic Engineering, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, UK; Cicci Research s.r.l., Italy; Istituto di Struttura della Materia, CNR-ISM, Italy; European Molecular Biology Laboratory, Epigenetics and Neurobiology Unit, Italy; Department of Biomedicine and Prevention, University of Rome Tor Vergata, Italy. A scientific manuscript has been submitted (as first author). Chapter 5: The conjugated polymer bio-hybrid interface is presented here as a photo-electrochemical cell for in vitro light control and stimulation of living cells. Biocompatibility is demonstrated by cytotoxic kit-experiment. Light stimulation of living xxxviii cells onto polymer substrates may lead to changing in membrane potential. Neuroblastoma cells (SH-SY5Y) are investigated. We also unravel the possibility to control cells proliferation under light-treatment, when seeded and grown onto the bio-hybrid device photoanodic electrode. A scientific manuscript in collaboration with Department of Biomedicine and Prevention, University of Rome Tor Vergata is being prepared (as first author). Chapter 6: Conclusion and future prospects are discussed
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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