1,721,014 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
Akromegali Hastalarında Aritmik Olayların ve Öngördürücülerinin Belirlenmesi
No full textCardiovascular complications are the most common causes of morbidity and mortality in acromegaly. Arhythmias and conduction abnormalities are important manifestations of cardiac involvement in patients with acromegaly. However, there is little data regarding cardiac autonomic functions in these patients. In these study, we aimed to investigate several parameters of cardiac autonomic functions and evaluate echocardiographic systolic and diastolic functions in patients with acromegaly compared to healthy subjects. Twenty-one newly diagnosed acromegalic patients (57,1% female, age: 45,76±12,4 years) and 27 age and gender-matched healthy subjects were enrolled in these study. All participants underwent 24h Holter recording and transthorasic echocardiographic (TTE) examination. Heart rate recovery (HRR) indices were calculated by subtracting 1st, 2nd and 3rd minute heart rates from maximal heart rate. All patients underwent heart rate variability (HRV) and QT dynamicity analysis. Baseline characteristics were similar except diabetes mellitus and hypertension among groups. All patients underwent transsphenoidal surgery (TSS), also five (23,8%) patients treated with octreotid and one (4,8%) patient had radiotherapy. Mean HRR1 (27,81±12,4 vs 42,48±6,6, p=0.001), HRR2 (43,43±15,3 vs 61,48±11,5, p=0,001) and HRR3 (47,71±15,4 vs 65,63±10,5, p=0,001) values were significantly higher in control group. HRV parameters as, SDNN (p=0,001), SDANN (p=0,001), RMSSD (p=0,001), PNN50 (p=0,001), variability index (p=0,001) and HF (p=0,001) were significantly decreased in patients with acromegaly; but mean heart rate (p=0,001), LF (p=0,012) and LF/HF (p=0,001) were significantly higher in acromegaly patients. QTec (p=0,005), QTac/RR slope (p=0,001) and QTec/RR slope (p=0,001) were significantly higher in patients with acromegaly.End diastolic diameter (4,9±0,4 vs 4,7±0,3, p=0,019), posterior wall thickness (1,03±0,1 vs 0,93±0,1, p=0,001), septal thickness (1,08±0,1 vs 0,93±0,1, p=0,001), left atrial diameter (3,51±0,3 vs 3,32±0,4, p=0,049), right ventricle diameter (2,76±0,2 vs 2,54±0,1, p=0,001) and septal E/E' ratio (8,25±3,1 vs 6,37±1,7, p=0,01) values were significantly higher in acromegalic patients; but tricuspid annular plane systolic excursion (TAPSE) (22,08±2,9 vs 24,15±1,4, p=0,032), E/A ratio (0,92±0,2'e karşı 1,2±0,3, p=0,002) and septal E' (9,13±2,9'e karşı 12,90±1,7, p=0,001) values were significantly decreased in patients with acromegaly. Additionally, there were significant negative correlation of disease duration with HHR1, HRR2, HRR3, SDNN, E/A ratio and significant positive correlation of disease duration with septal thickness. At a median follow-up time of 10 months; HRR1, HRR2, HRR3, PNN50, RMSSD, E/A ratio, septal E' and TAPSE were significantly increased, LF/HF, mean heart rate, septal thickness, posterior wall thickness, left atrial diameter and IVRT were significantly decreased in patients with acromegaly after the treatment (P<0,05). Our study results suggest that cardiac autonomic functions and left ventricular diastolic functions are impaired in patients with acromaegaly. Also we showed thatthe treatment of acromegaly makes significant improvement in many parameters of cardiac autonomic functions and left ventricular diastolic functions.Akromegalik hastalarda morbidite ve mortalitenin en sık nedenleri kardiyovasküler komplikasyonlardır. Aritmi ve iletim bozuklukları, akromegali hastalarında kardiyak tutulumun önemli klinik bulgularıdır. Ancak bu hastalarda kardiyak otonomik fonksiyonlarla ilgili çok az veri bulunmaktadır. Bu çalışmanın amacı, akromegali hastalarında kardiyak otonomik fonksiyon parametrelerini incelemek, ekokardiyografik sistolik ve diyastolik fonksiyonları değerlendirmek ve bu verileri sağlıklı kontrol grubuyla karşılaştırmaktır. Yirmi bir yeni tanı akromegali hastası (%57,1 kadın, yaş: 45,76±12,4yıl) ve yaşa ve cinsiyete göre eşleştirilmiş 27 sağlıklı birey çalışmaya alındı. Tüm olgulara 24 saatlik Holter monitörizasyonu uygulandı ve transtorasik ekokardiyografi (TTE) yapıldı. Kalp hızı toparlanma indeksi (HRR) verileri, maksimum kalp hızından birinci, ikinci ve üçüncü dakikadaki kalp hızları çıkarılarak hesaplandı. Tüm hastalarda kalp hızı değişkenliği (HRV) ve QT dinamisite analizi yapıldı. Her iki grup arasında diabetes mellitus ve hipertansiyon haricindeki bazal karakteristik özellikler benzerdi. Tüm hastalara transsfenoidal cerrahi (TSC), beş (%23,8) hastaya oktreotid tedavisi ve bir (%4,8) hastaya radyoterapi (RT) uygulandı. Ortalama HRR1 (27,81±12,4'e karşı 42,48±6,6, p=0.001), HRR2 (43,43±15,3'e karşı 61,48±11,5, p=0,001) ve HRR3 (47,71±15,4'e karşı 65,63±10,5, p=0,001) değerleri kontrol grubunda anlamlı olarak daha yüksek bulundu. Akromegali hastalarında SDNN (p=0,001), SDANN (p=0,001), RMSSD (p=0,001), PNN50 (p=0,001), değişkenlik indeksi (p=0,001) ve HF (p=0,001) anlamlı olarak daha düşük; ortalama kalp hızı (p=0,001), LF (p=0,012) ve LF/HF (p=0,001) ise anlamlı olarak daha yüksek bulundu. QTec (p=0,005), QTac/RR eğimi (p=0,001) ve QTec/RR eğimi (p=0,001) değerlerinin akromegali hastalarında anlamlı olarak daha yüksek olduğu görüldü. Diyastol sonu çapı (4,9±0,4'e karşı 4,7±0,3, p=0,019), arka duvar kalınlığı (1,03±0,1'e karşı 0,93±0,1, p=0,001), septum kalınlığı (1,08±0,1'e karşı 0,93±0,1, p=0,001), sol atriyum çapı (3,51±0,3'e karşı 3,32±0,4, p=0,049), sağ ventrikül çapı (2,76±0,2'e karşı 2,54±0,1, p=0,001), septal E/E' oranı (8,25±3,1'e karşı 6,37±1,7, p=0,01) değerleri akromegalik hastalarda anlamlı olarak daha yüksekti; diğer taraftan triküspit anüler düzlem sistolik hareketi (TAPSE) (22,08±2,9'e karşı 24,15±1,4, p=0,032), E/A oranı (0,92±0,2'e karşı 1,2±0,3, p=0,002), septal E' (9,13±2,9'e karşı 12,90±1,7, p=0,001) değerinin ise akromegali hastalarında anlamlı olarak azaldığı görüldü. Ayrıca, hastalık süresi ile HRR1, HRR2, HRR3, SDNN ve E/A oranı arasında anlamlı negatif korelasyon, septum kalınlığı ile anlamlı pozitif korelasyon olduğu tespit edildi. Medyan 10 aylık takip süresi sonunda akromegali hastalarında; HRR1, HRR2, HRR3, PNN50, RMSSD, E/A oranı, septal E' ve TAPSE değerlerinde anlamlı artış olduğu, LF/HF oranı, ortalama kalp hızı, septum kalınlığı, arka duvar kalınlığı, sol atriyum çapında ve IVRT'de ise anlamlı azalma olduğu görüldü (p<0,05). Sonuç olarak çalışmamızda, akromegali hastalarında kardiyak otonomik fonksiyonların ve sol ventriküler diyastolik fonksiyonların bozulduğu tespit edildi. Ayrıca akromegali hastalarında tedavi ile kardiyak otonomik fonksiyonların ve sol ventrikül diyastolik fonksiyonların önemli bir çok parametresinde anlamlı düzelme sağlanabildiği gösterildi
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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