1,721,061 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
CONCENTRAÇÕES ELEVADAS DAS CITOCINAS ASSOCIADAS À RESPOSTA Th17 E DESFECHOS DESFAVORÁVEIS EM PACIENTES COM COVID-19 ADMITIDOS À UNIDADE DE TERAPIA INTENSIVA
Get PDFCOVID-19 is an infectious disease caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). It is now understood that the immune response plays a crucial role in modulating the severity and outcome of this disease. In this context, the Th17 response has been receiving increasing attention due to its ability to modulate inflammation. A prospective inclusion of 56 COVID-19 patients admitted to the Intensive Care Unit (ICU) of the General Hospital of Vitória da Conquista (HGVC) in Bahia, Brazil, was conducted. All included patients had SARS-CoV-2 infection confirmed through real-time polymerase chain reaction (RT-PCR) of nasopharyngeal swab samples. Serum samples were collected from all participants to determine the concentration of Th17-associated cytokines (IL-1β, TGF-β, IL-6, IL-17, and IL-23) using enzyme-linked immunosorbent assay (ELISA). The Shapiro-Wilk test assessed the normality of data distribution, and Levene's test verified variance homogeneity. Student's t-test was employed for mean comparisons, and chi-square independence tests (2x2) examined associations between categorical variables. Lastly, Spearman correlation evaluated associations between cytokines and the mortality outcome variable. It was initially demonstrated that male patients had a higher likelihood of mortality compared to female patients. Deceased patients exhibited higher levels of IL-1β and IL-6 compared to those discharged, while TGF-β levels in deceased patients were substantially elevated. Although statistically significant differences were not observed, there was a trend of higher levels of IL-17 and IL-23 in patients who succumbed to mortality. IL-1β and TGF-β showed a significant strong correlation with the mortality outcome, while IL-6 presented a moderate correlation. Strong significant correlations were found between IL-1β and TGF-β, as well as between IL-6 and IL-17, and IL-6 and IL-23, with a moderate correlation observed between IL-6 and TGF-β. Finally, IL-17 and IL-23 exhibited a significant correlation with each other. Based on our analysis, we conclude that elevated levels of cytokines IL-1β, TGF-β, and IL-6 are significantly associated with an unfavorable outcome in SARS-CoV-2 patients, irrespective of comorbidities. These cytokines may play a crucial role in the pathogenesis of the disease and serve as useful indicators for assessing the severity and prognosis of SARS-CoV-2-infected patients.Fundação de Amparo à Pesquisa do Estado da Bahia - FAPESBA COVID-19 é uma doença infeciosa causada pelo coronavírus da síndrome respiratória aguda grave 2 (SARS-CoV-2). Sabe-se, hoje, que a resposta imunológica desempenha um papel fundamental na modulação da gravidade e desfecho dessa doença; e, nesse contexto, a resposta Th17 tem recebido crescente atenção devido à sua capacidade de modulação da inflamação. Foram incluídos prospectivamente 56 pacientes com COVID-19 admitidos à UTI do Hospital Geral de Vitória da Conquista (HGVC) – Bahia, Brasil. Todos os pacientes incluídos tiveram a infecção por SARS-CoV-2 confirmada por meio de PCR em tempo real (RT-PCR) de amostras de swab nasofaríngeo. Coletou-se amostras de soro de todos os participantes para determinação da concentração sérica de citocinas associadas à resposta Th17 (IL-1β, TGF-β e IL-6, IL-17 e IL-23) via ELISA (ensaio imunoenzimático). Foi utilizado teste de Shapiro-Wilk para avaliar a normalidade da distribuição dos dados, a homogeneidade de variância foi verificada por meio do teste de Levene. O teste t de Student foi utilizado para comparações de médias. Realizou-se testes qui-quadrado de independência (2x2) para associações entre variáveis categóricas. Por fim, avaliamos as associações entre as citocinas e a variável de desfecho mortalidade utilizando-se correlação de Spearman. Foi demonstrado inicialmente que pacientes do sexo masculino apresentavam mais chances de vir a óbito quando comparados com pacientes do sexo feminino. Observou que pacientes falecidos apresentaram níveis mais elevados de IL-1β e IL-6 comparados com pacientes que receberam alta, em relação ao TGF-β os pacientes falecidos apresentaram níveis séricos substancialmente elevados comparados ao grupo. Embora não tenha sido observadas diferenças estatisticamente significativas foi notada uma tendência de níveis mais elevados de IL-17 e IL-23 em pacientes que evoluíram ao óbito. A IL-1β e TGF-β revelaram uma correlação significativa de forte magnitude com o desfecho morte, já a IL-6 apresentou uma correlação moderada. Quanto as correlações das citocinas entre si encontraram-se uma correlação significativa forte da IL-1β com TGF-β. A IL-6 também demonstrou uma correlação significativa forte com a IL-17 e com a IL-23, bem como de moderada magnitude com TGF-β. Por fim, IL-17 e IL-23 exibiram uma correlação significativa de entre si. Com base em nossa análise, concluímos que elevados níveis das citocinas IL-1β, TGF-β e IL-6 estão significativamente associados a um desfecho desfavorável em pacientes com SARS-CoV-2, independentemente das comorbidades presentes. Essas citocinas podem desempenhar um papel importante na patogênese da doença e podem ser indicadores úteis para avaliar a gravidade e o prognóstico dos pacientes infectados pelo SARS-CoV-2
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
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