1,720,965 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
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
Synthesis and Microscopic Characterizations of Virus Nanoparticle-Based Composite Materials
No full textPlant viruses and virus-like protein cages (VLPs) have shown significant promise for a wide range of biomedical applications. In contrast to the artificial nanomaterials, VLPs exhibit unique properties including their well-organized three dimensional (3D) structures, monodispersity, high-polyvalent surface, and easily functionalized by genetic and chemical methods, which are difficult to be achieved by man-made materials. Therefore, the fabrication and the biomedical applications of biomaterials using viruses as building blocks will be studies in this work.
In this dissertation, I have done chemical modification of virus coat proteins to functionalize VLPs including rod-shaped virus (TMV, TVCV) and filamentous virus (PVX, TEV), and genetically engineered TMV coat protein by inserting an Arg-Gly-Asp peptide sequence (RGD) in order to display functional groups on the surface of TMV coat protein. Using these functionalized VLPs as building blocks, several methods have been studied to fabricate extracellular matrix (ECM) mimic substrates, which are well known to support for cellular adhesion, growth, and differentiation. The fibrous network of ECM structures can be mimetic by an electrospinning method. Using this technique, the functionalized plant viruses or ECM proteins have been electrospun with polymers, forming one dimentional (1D) nanofibers. The random distribution of nanofibers on a glass substrate resembles the ECM fibrous network with high porosity and surface-to-volume ratio. With various amount of TMV, the electrospun TMV and polyvinyl alcohol (PVA) nanofibers remain homogeneous without phase separation. The same result is obtained in the case of the as-spun polycaprolactone (PCL)-collagen. In biomedical applications, these electrospun ECM mimic substrates have been tested in vitro cell studies of baby hamster kidney (BHK) cells. As a result, in contrast to cells grown on PVA or PVA-TMV substrate, BHK cells show better adhesion and spreading on the RGD mutant TMV-PVA fibrous mats. Similarly, the breast cancer stem cell M605 also displayed better spreading on PCL-collagen substrates than that on the PCL fibrous matrix. In addition, on aligned electrospun fibrous mats, BHK cells were found to follow the alignment of the as-spun nanofiber.
Virus can also be self-assembled into ECM mimic substrates using a convective method. Driven by the interactions between the triple interfaces of air, solution, and glass surface, the filamentous virus -- bacteriophage M13 was self-assembled into a patterned M13 film. The topographic feature provides physical cues to promote BHK cells spreading and alignment in the direction of virus assembly. To characterize the cell-substrate interactions, cells were decellularized to expose the denuded ECM structure. Using Scanning Electron Microscopy (SEM) and fluorescence microscopy, the ECM proteins fibronectin and collagen (type Ι) were found to align on the M13 film while to randomize on a glass substrate.
In addition, functionalized VLPs have also shown capability to assemble with polymer poly 4-vinylpyridine (P4VP) into three dimensional (3D) core-shell nanostructures serving as a vehicle for drug delivery. To exploit the assembly of VLPs and polymers, a TEM thin-sectioning was studied to characterize VLP-P4VP 3D nanocomposites. By imaing thin sections of ferritin-P4VP and elemental characterization, we found that the 3D nanoparticle is composed of ferritins on the surface and P4VP staying inside to form a core. This polymer-VLP core-shell opens potential applications in drug delivery targeting tumor cells. Overall, functionalized viruses and VLPs have played important roles in regulating cell adhesion, spreading and tumor cells targeting
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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