1,720,953 research outputs found
CARDIOVASCULAR EVENTS AND INCEPTION OF DIALYSIS IN DIABETIC AND NON-DIABETIC CKD PATIENTS WITH CORONARY ARTERY CALCIFICATION. FOLLOW-UP STUDY
No full textCoronary artery calcification (CC) is frequent in patients with CKD and even more in those
with concomitant type 2 diabetes. Presence and progression of CC are both strong predictive
factors of cardiovascular events (CVE) in on-dialysis patients. In contrast, the effects of CC
on the rate of CVE has been seldom evaluated as predictors in pre-dialysis (NDD-CKD)
diabetic patients. Main aim of the present study is the evaluation of the rate of CVE and
inception to dialysis in NDD-CKD patients with CC.
METHODS:
Outpatients with stage 2 to 4 CKD were screened for presence of CC with CT scan. Inclusion
criteria were: age > 18 years, CKD stage 2-4. Exclusion criteria were: symptoms of heart
failure and/or coronary artery disease, previous history of myocardial infarction, coronary
bypass surgery, angioplasty, stroke, arrhythmia. Routine blood chemistry was assessed at
enrollment and every six months. Recorded events were: sudden death, fatal and not fatal
myocardial infarction, other-cause mortality, and inception of dialysis. The scheduled followup
for evaluation of events was 48-month long. Coronary Calcium Score (CAC-Score) was
assessed by computed tomography at study entry, and on 48th month.
RESULTS:
Recruited patients (n.275) were divided in 4 groups according to presence of CC and diabetes.
Patients without CC and without diabetes were n.126; those with CC but without diabetes
were n.88; those with CC and diabetes were n.48; those without CC but with diabetes were
n.13. Presence of CC was significantly (p<0.001) higher in diabetics (79% Vs 41%) as well as
baseline CAC-score (489±571 Vs 335±666 SD; median: 250 Vs 132; Agatston Unit). At the
end of follow-up progression was 76% higher in diabetics compared to non-diabetics.
Descending artery was more frequently involved both in diabetics and not diabetics (80-91%);
circumflex coronary artery was mostly involved (71% Vs 31%) in diabetics. Composite endpoint
(CVE and inception of dialysis) was encountered in 42%, and in 69% of calcified NDDCKD
patients without and with diabetes, respectively. In the whole population, patients with
CC more frequently experienced CV events. Inception to dialysis was more frequent in non
calcified patients because fatal CVE were less frequent than those occurring in calcified
patients.
CONCLUSIONS:
Calcified NDD-CKD diabetic patients are more prone to composite end-point of CVE and
inception to dialysis. Initiation of dialysis is more frequent in non calcified NDD-CKD
patients. Because of the higher risk for cardiovascular events, NDD-CKD diabetic patients
might benefit from risk stratification with CAC-score screening. This non invasive procedure
may help physicians in choosing the better medical therapy for diabetics
Saturday, Ma
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Full text linkWe 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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