1,720,956 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
A thorn amidst the roses: Improving invertebrate and endophyte diversity in rose gardens
No full textThere is increasing global concern about the decline of invertebrate species and the widespread use of agrichemicals is likely to be a major threat to invertebrates. Roses (Rosa spp.) are a valuable horticultural crop, valued at €24 billion in 2008. However, traditional management of roses usually involves the extensive use of agrichemicals, particularly pesticides for controlling pests and diseases such as black spot or aphids. Growing health and environmental concerns have led to the development of more sustainable agricultural practices, involving the cultivation of disease resistant cultivars and the reduction of agrichemical inputs. Application of endophytes (endosymbiotic microorganisms found in plant tissues) to plants can enhance plant growth and inhibit the colonization of plant pathogens, so potentially are a way of fostering sustainable agriculture. The impact of pesticides on invertebrates and endophytes has been studied in a variety of agricultural contexts in New Zealand, but there are no studies in rose gardens. In this thesis, I aimed to determine the impacts of different spray regimes on invertebrate and endophyte diversity in rose gardens. I used pitfall traps and leaf litter samples to determine the abundance and diversity of ground-dwelling invertebrates in 10 Auckland rose gardens. I calculated the Environmental Impact Quotient (EIQ) to index the intensity of pesticide usage in the different gardens. Most of the gardens had very low pesticide levels (EIQ in four gardens was 0), while two gardens had moderately high levels (EIQ of 49.9 and 92). Heavy metal concentrations in many of the garden soils were elevated above background levels (particularly cadmium, lead and copper), although all soils met the criteria for ornamental gardens in New Zealand. Two commonly used persistent pesticides (DDT and Dieldrin) were not detected in any of the soil samples. A total of 19 families of invertebrates were collected from leaf litter samples, and 23 families from pitfall traps. Collembola and Formicidae were the most abundant groups collected. Only six species of Coleoptera were collected, all but two being exotic species. Collections were likely affected by the extremely wet conditions experiences in Auckland in summer 2023. I found no statistically significant relationship between EIQ and measures of invertebrate diversity. In contrast, invertebrate communities were found to be most diverse and abundant in gardens with high vegetation diversity.
I also collected rose root samples to determine the abundance and diversity of endophytes in four Auckland rose gardens. These samples were cultured in the laboratory and then DNA sequenced to determine the species of endophytes. I only detected a relatively low diversity of fungal (18 isolates) and bacterial (20 isolates) endophytes, primarily generalist species, tolerant of a range of environmental conditions. The three identified fungal isolates were all Trichoderma, while for bacterial endophytes there were three species of Pseudomonas and one species of Priestia identified. A greater diversity of endophytes were found in unsprayed gardens, but their presence in sprayed rose gardens suggests they were able to withstand at least some level of agrichemical spray and soil pollution.
Overall, my research only detected a reasonably low diversity of ground-dwelling invertebrates and root endophytes colonizing Auckland rose gardens. I did not find direct evidence of improved ground-dwelling invertebrate communities in gardens with low toxicity spray regimes compared to gardens with higher spray regimes. It is likely that rose gardens in this study support a range of tolerant, exotic invertebrate species that have the capacity to recover in the period following pesticide application. Furthermore, my ability to detect differences was compromised by a summer of extremely wet weather, and soils that were relatively contaminated with heavy metals. Planting a greater diversity of plants within rose gardens and limiting pesticide application is likely to enhance invertebrate and endophyte diversity in rose gardens, thus improving the health of roses as well as providing other environmental benefits
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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