1,720,953 research outputs found
Prevalence of abnormal or conditional TCDs in London and practicalities of setting up a TCD service
No full text?Background and Aims. In sickle cell anaemia (SCA), internal carotid/middle cerebral artery velocities of >200 cm/sec (abnormal) and 170-199 cm/sec (conditional) on transcranial Doppler Ultrasound (TCD) predict stroke risks of 40% and 7% over the next 40 months respectively. The prevalence of abnormal and conditional TCD was around 8-10% in the 1990s but there is little recent data. There are a variety of different screening programs in London using imaging (South) and non-imaging (North) TCD. Some hospitals run regular Saturday services to improve attendance and decrease time spent off school. Others feel compliance is best achieved by having a second room in a normal clinic so patients have only one appointment to keep. Some use ultrasonographers, others radiologists and some haematologists. In view of the recently published UK Standards we undertook to screen the paediatric sickle cell population at the Whittington Hospital NHS Trust in North London, a haemoglobinopathy centre. The purposes of the sessions were to i) screen the population with TCD and compare the current prevalence with previous data ii) ascertain the important factors in setting up such a service and iii) determine whether birth factors increased risk for abnormal TCD. Methods. Patients were selected according to the following criteria: age >2 <20 and HbSS. HBSC and HbSBthal patients were screened if there were concerns regarding their neurology or if they had a sibling with HbSS attending. All patients were contacted by telephone. All appointments were during normal clinic times and 3 of the four sessions were during school times. Most patients did not have a simultaneous follow-up appointment with the clinician. All patients and parents were given written and verbal information in either French or English and gave verbal consent. Using a non-imaging 2Hz probe, the patients were screened by a specialist registrar in haematology (ST) under the supervision of an experienced consultant paediatric neurologist (FJK). All data was recorded manually and then transcribed onto the Trust’s blood results system. Results. TCD screening took an average of 15 minutes for a healthy patient and 30 minutes for a patient with known neurological problems. A further one hour per 10 patients was required to load the data onto the computer system. Of 67 patients screened (100% of those given appointments; 63 SCA), 5 of whom had already had a stroke, 7 (10%; 1 stroke) had abnormal TCD, 10 (14%, 1 stroke) were conditional and 2 (3%; 1 stroke) had low velocities. The 4 patients with haemoglobin SC disease had normal TCD. There was no effect of gestational age, birth weight or mode of delivery. Summary and Conclusions. The prevalences of abnormal and conditional TCD appear similar to previously reported data. Compliance was excellent. Those with previous infarction take longer to screen. Time is required to upload the results to the hospital computer system but the clinicians in charge of the patients voiced great satisfaction with the easy retrieval of results. A follow-up questionnaire will be looking at patient’s satisfaction and the screening program for the rest of the cohort is planne
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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