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
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
An assessment of groundwater potential and vulnerability in The Upper Manyame Sub-Catchment of Zimbabwe.
No full textGroundwater plays a pivotal role in meeting potable water needs. However, significant stresses generated from anthropogenic activities have affected its safe use. In-order to enable appropriate risk communication and informed decision making on groundwater use and management, full knowledge of its quality, quantity and vulnerability is fundamental. The main objective of this study was to assess Groundwater Potential (GWP) and vulnerability in the Upper Manyame Sub-catchment (UMSC). GWP was mapped through the use of Geographic Information Systems and remote sensing-based multi-criteria analysis. Spatial thematic layers; viz., geology, slope, land-use, drainage density, recharge, topographic index, altitude and rainfall were developed and weighted using Saaty’s Analytical Hierarchy Process (AHP) and the Quantile Method. Layers were subsequently aggregated using the Weighted Linear Combination and Index Overlay methods, respectively, to develop two Groundwater Potential Index (GWPI) maps. Indices from each map were correlated with borehole yield data to select the best method from which GWP zones were then developed. Given the widespread use of groundwater for domestic purposes in the study area, its quality was also analysed. Groundwater samples from 15 sampling sites were analysed for selected physico-chemical and biological parameters as recommended by the World Health Organization. Results were then subjected to descriptive statistical analysis and Principal Component Analysis (to identify key parameters). Repeated Measures ANOVA (RMA) was used to analyse if there were any significant variations in mean groundwater parameter levels. Groundwater vulnerability was determined using the GOD Model with key input parameters being groundwater occurrence, overlaying lithology and depth to water table. The results for GWP mapping showed that AHP-based GWP index map exhibited a stronger correlation with borehole yield data (r=0.65, n=120), indicating the robustness of the AHP as a factor rating method. About 72 % (2725.9 km2) of the UMSC was noted to be of moderate GWP (10-100m3/day), while 19 % (719.3 km2) and 9 % (340.7 km2) exhibited high and low GWP, respectively. Groundwater quality results indicated that: pH, coliforms, TDS, EC, total hardness, Fe, NH4+ and turbidity exceed SAZ/WHO drinking water limits in most cases. However, Fl-, Zn, Pb, Cu and Cl- were within acceptable limits. Four Principal Components (PCs) representing 84 % of the cumulative variance were extracted. PC1 was characterized by high dominance of pH, TDS, EC and total hardness. PC2's variance was found to be associated with elevated levels of Cl-, Zn and Cu. On the other hand, PC3 had high loadings of total and faecal coliforms, Fl-.and turbidity. PC4 was characterized by high loadings of Pb, Fe, ammonia and turbidity. Overall, PCA showed that most of the variation in the water quality was accounted for by pH, Zn, Cl-, TDS, ammonia, Fl-, Cu, turbidity, Fe, Pb and faecal. The results of RMA indicated that there were significant differences in mean parameter levels across sampling sites and within subsequent campaigns (p<0.05), for parameters DO, total coliforms and faecal coliforms. The study area was found to be largely of moderate groundwater vulnerability (77.3 % of area). A moderate correlation of 0.47 was exhibited between the measured ammonia levels and groundwater vulnerability indices. The correlation indicate instances of ammonia contamination, hence it can be concluded that groundwater in the UMSC is being polluted by anthropogenic activities. Regular monitoring is therefore recommended to safeguard public health and prevent further deterioration of groundwater.,WaterNe
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