1,720,966 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
Influence of changes in parameter estimates within the Tyrer-Cuzick model on the calculation of individual breast cancer risk
Get PDFTyrer-Cuzickov model napoveduje tveganje za raka dojk v določenem časovnem obdobju, natančneje verjetnost, da posameznica zboli za rakom dojk do neke starosti, če do sedaj še ni zbolela. Model sloni na populacijski funkciji preživetja in funkcijah preživetja nosilcev mutacij genov BRCA1 in BRCA2. Segregacijski del modela upošteva starost posameznice in genetske dejavnike tveganja, ki jih pridobimo iz družinske anamneze raka dojk in jajčnikov ali genetskega testiranja. V regresijskem delu modela upoštevamo še ostale osebne dejavnike tveganja, kot so starost ob menarhi, rojstvo otrok, starost ob rojstvu prvega otroka, menopavzni status, prejemanje hormonske nadomestne terapije, gostota dojk idr.
Avtorji Tyrer-Cuzickovega modela so v program IBIS Risk Evaluator v8 vključili tudi incidenco raka dojk v slovenski populaciji. V magistrskem delu nas je zanimalo, ali sprememba populacijske funkcije preživetja in sprememba funkcij preživetja nosilcev mutacij genov BRCA1 in BRCA2 prinese strokovno pomembne razlike v izračunu tveganja za raka dojk.
Podrobno smo preučili članka o Tyrer-Cuzickovem modelu, v katerih marsikateri del modela ni natančno razložen. V programskem okolju R smo implementirali izračun tveganja za raka dojk in primerjali izračune tveganja po programu IBIS Risk Evaluator v6 z našimi izračuni. Implementacija modela nam je omogočila, da smo spremenili ocene parametrov znotraj modela, natančneje funkcije preživetja splošne populacije in nosilcev mutacij genov BRCA1 in BRCA2. Razlike v izračunu tveganja samo preučili na vzorcu 350 posameznic, ki so bile vključene v preventivno obravnavo v Centru za bolezni dojk in torej še niso zbolele za rakom dojk. Primerjali smo porazdelitev tveganj in porazdelitev posameznic v splošno, zmerno ter visoko kategorijo ogroženosti z rakom dojk. S pomočjo paketa Shiny smo v programskem okolju R ustvarili interaktivno spletno aplikacijo za izračun tveganja za raka dojk.
Pokazali smo, da pri spremembi populacijske funkcije preživetja z britanske na slovensko pride do strokovno pomembnih razlik, medtem ko sprememba funkcij preživetja nosilcev mutacij genov BRCA1 in BRCA2 ne prinese strokovno pomembne razlike v porazdelitvi tveganj ali v porazdelitvi posameznic v kategorije ogroženosti.
V spletno aplikacijo za izračun tveganja za raka dojk vnesemo osebne dejavnike tveganja za raka dojk in anamnezo raka dojk ter jajčnikov v družini. Aplikacija poda izračun osebnega in populacijskega desetletnega tveganja za raka dojk ter verjetnosti, da je oseba nosilka mutacije gena BRCA1 ali BRCA2. Podatke o posameznici in njenem tveganju za raka dojk shranimo v Excelovo datoteko, kar nam omogoča lažjo nadaljnjo analizo podatkov.The Tyrer-Cuzick model predicts the risk of developing breast cancer in a certain age interval, i.e. the probability of developing breast cancer until a certain age if one has not yet developed breast cancer. The model is based on the population survival function and the survival functions of BRCA1 and BRCA2 gene mutation carriers. Segregation part of the model includes age and genetic risk factors obtained from the individual\u27s family history of breast and ovarian cancer or results of genetic tests. The regression part of the model considers the other personal risk factors such as age at menarche, age at first childbirth, menopausal status, receiving hormone replacement therapy, breast density, etc.
In the program IBIS Risk Evaluator v8, authors of Tyrer-Cuzick model included also the incidence of breast cancer in Slovenian population. In this master\u27s thesis, we were interested whether changing population survival function and survival functions of BRCA1 and BRCA2 gene mutation carriers brings clinically significant differences in the calculated risk of developing breast cancer.
We have studied two articles on the Tyrer-Cuzick model, where several parts of the model are not explained in detail. We implemented the model in R software environment and compared risk values according to the IBIS Risk Evaluator v6 program with our calculations. The implementation of the model gave us the ability to change the estimates of the parameters within the model, more precisely the population survival function and the survival functions of the BRCA1 and BRCA2 gene mutation carriers. Differences in risk calculation were examined on a sample of 350 individuals who were included in a preventive screening at the Breast Disease Center and had not yet been diagnosed with breast cancer at the time of screening. We compared the distributions of risk of developing breast cancer and the distribution of individuals into the general, moderate, and high risk category for breast cancer. With the use of the package Shiny, we created an interactive web application in the R software environment for calculating the risk of developing breast cancer.
We showed that differences in risks are clinically significant if we change the population survival function from British to Slovenian, whereas the change in the survival functions of BRCA1 and BRCA2 gene mutation carriers did not lead to clinically significant differences in the distribution of risk or the distribution of individuals into risk categories.
Our application for calculating the risk of developing breast cancer enables entering information about personal risk factors for breast cancer and family history of breast and ovarian cancer. The application returns an estimate of the risk of developing breast cancer in a 10 year period and the probability that the individual is a BRCA1 or BRCA2 gene mutation carrier. Data on the individual woman and her risk can be saved in an Excel file, which enables further data analysis
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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