1,720,997 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
Evaluation of current feeding and management practices in Irish pig production and future strategies for improvement
Get PDFAquesta tesi te com objectius caracteritzar les pràctiques de bioseguretat, alimentació, i maneig de malalties respiratòries en el sector porcí irlandès per quantificar el seu impacte sobre la productivitat. Això, permetrà identificar i prioritzar els aspectes claus per millorar la eficiència i sostenibilitat. A més, la tesi persegueix els següents resultats: 1) la present tesi i les publicacions indexades derivades com a principal resultat acadèmic, 2) proveir als grangers porcins d’Irlanda amb informació que els permeti millorar la seva eficiència productiva, i 3) desenvolupar col·laboracions amb altres institucions nacionals i internacionals que permetin al Teagasc importar i disseminar el coneixement necessari a la industria porcina Irlandesa.
El primer estudi descriu el nivell de bioseguretat, quins aspectes són més importants en el context irlandès i el seu impacte sobre la productivitat. El nivell de bioseguretat a les granges irlandeses estudiat amb el sistema Biocheck.UGentTM és similar al de la resta de països on s’ha implementat. La bioseguretat externa és una mica millor a Irlanda degut a determinades característiques de les granges. La bioseguretat interna en canvi es una debilitat a Irlanda. Els resultats suggereixen que les pràctiques de bioseguretat relacionades amb la regió, el maneig de pinso, aigua i equipament, i el maneig intern dels animals ha de millorar en les granges amb pitjor productivitat.
El segon estudi descriu les pràctiques d’alimentació a llavores, truges (gestants i lactants) i a porcs d’engreix i els seus efectes a la productivitat i als costos d’alimentació. Les granges Irlandeses presenten una gran heterogeneïtat a les seves pràctiques d’alimentació amb un 42.9% fabricant el seu propi pinso, un 51.8% utilitzant alimentació liquida i un 21.4% fent alimentació en fases. L’alimentació explica un 29 i un 27% de la variabilitat del creixement i de la mortalitat a engreix, i un 39% dels costos d’alimentació. Tanmateix, l’alimentació només explica un 19% i 22% de la variabilitat al sacrifici i mortalitat de les truges i no te cap efecte important a l’índex de conversió.
El tercer estudi descriu l’impacte de les patologies respiratòries a les granges porcines irlandeses mitjançant 1) la seroprevalença del virus de la grip porcina, el virus de la síndrome reproductiva i respiratòria porcina, Mycoplasma hyopneumoniae i Actinobacillus pleuropneumoniae, 2) la prevalença de pleuritis, pneumònia, pericarditis i taques de llet, i 3) l’efecte de la vacunació, serologia i inspeccions a escorxador a la productivitat. La prevalença dels patògens estudiats és similar i en alguns casos menor que la trobada en altres països europeus. La prevalença de lesions pulmonars és una de les més baixes a les publicacions indexades. D’altra banda la prevalença de taques de llet és més alta del que es podria esperar. Els models per estudiar l’efecte de la patologia respiratòria sobre la productivitat expliquen 26 and 20% de la variabilitat a la mortalitat de deslletament i engreix respectivament, i 47, 40 i 41% de la ingesta, el guany mig diari i la edat de sacrifici.
La productivitat de les granges estudiades està més afectada per les malalties respiratòries que per la bioseguretat o les pràctiques d’alimentació. Aquest resultat està afectat per molts factors però probablement la bioseguretat i les estratègies d’alimentació són àrees on el granger te una capacitat de intervenció molt més gran que al control de malalties respiratòries.
La industria porcina irlandesa ha de millorar la seva bioseguretat interna millorant el maneig a les granges i la recollida de dades pel que fa a la salut i productivitat dels animals. En general es necessari un enfocament d’equip (ramader, veterinari, nutricionista, etc) per cada granja. És necessita també més dades pel que fa a les pràctiques d’alimentació.This dissertation aims to characterize biosecurity and feeding practices and respiratory disease in Irish pig farms and to quantify their impact on productive performance. Thus, it identifies and prioritizes the aspects that need improvements to increase production efficiency and sustainability. Additionally, the work developed during this PhD pursued three distinct outputs: 1) to produce peer-reviewed publications and this thesis as the main research outputs, 2) to provide Irish pig farmers with feedback for the improvement of their production efficiency, and 3) to develop collaborations with other national and international institutions, allowing Teagasc to import and disseminate the knowledge that is needed in the Irish pig industry.
The first study describes the biosecurity status of Irish pig farms, investigated which biosecurity aspects were critical in Irish farms, and studied the impact of such aspects on farm performance. These practices were assessed using the Biocheck.UGentTM scoring system. The Irish biosecurity scores are similar to other countries. External biosecurity is slightly better in Ireland than in other EU countries due to the particularities of Irish farms. Internal biosecurity is one of the liabilities of the Irish pig industry. The results suggest that practices related to the environment and region, feed, water and equipment supply, and the management of the different stages, need to be addressed in poorly performing farms to improve performance.
The second study describes the feeding strategies used in gilts, sows (gestating and lactating) and pigs (weaning to slaughter) in Irish pig farms, and studies the effects of such feeding practices on productive performance and feed cost. As expected, feeding practices differ greatly among Irish pig farms. Within the cohort of Irish farrow-to-finish farms studied, 42.9% are home-milling, 51.8% feed wet diets to slaughter pigs and only 21.4% use phase-feeding in finishers. The feeding practices for sows and gilts explain 19% and 22% of sow culling and mortality, respectively. The feeding practices from weaning to slaughter explain 29 and 27% of the variability in ADG and finisher mortality, and 39% of feed cost variability. Contrary to what the author expected, FCR is not greatly affected by feeding practices in each farm.
The last study describes the impact of respiratory disease in Irish pig production by 1) describing seroprevalence of swine Influenza Virus, Porcine Reproductive and Respiratory Syndrome virus, Mycoplasma hyopneumoniae and Actinobacillus pleuropneumoniae, 2) describing the prevalence of pleurisy, pneumonia, pericarditis and milk spots, and 3) estimating the impact of vaccination, serology and slaughterhouse checks on productive performance. The prevalence of studied pathogens is similar and, in some cases lower, than that reported by other European countries. The prevalence of lung lesions at slaughter is variable and the national average prevalence for pleurisy and pneumonia figure is one of the lowest compared to those reported in peer-reviewed publications. Conversely, the prevalence of milk spots in the liver is unexpectedly high. The models to estimate the effect of respiratory disease on performance explain the variability of weaner and finisher mortality by 26 and 20%, respectively, and ADFI, ADG and age at slaughter by 47, 40 and 41%, respectively.
Productive performance is more affected by respiratory disease than by biosecurity and feeding practices. Many factors contribute to this result. Biosecurity and feeding strategies are directly manageable by farmers, while respiratory disease is not.
The main aspects to improve in the Irish pig industry include internal biosecurity and management protocols, keeping accurate records to monitor on-farm health, welfare and productive performance, and a closer collaboration between the team (farmer, veterinarian, nutritionist, etc) responsible for the management of each farm. Further studies are needed to understand the role of feeding practices on costs and FCR
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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