1,720,962 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
Венозная тромбоэмболия: эпидемиологические, медико-социальные и экономические аспекты
Get PDFVenous thromboembolism (VTE) includes thrombosis of the deep veins of the lower limbs or pelvis and its complication of pulmonary embolism (PE). VTE is common in clinical practice, especially in the elderly and is associated with low survival, substantial costs for care, a high recurrence rate. The disease is complex (multifactorial), which involves interactions between acquired or inherited predispositions for thrombosis. Major risk factors for venous thrombosis include hospitalization for surgery or acute illness, active cancer, neurological disease with neurological deficiencies, trauma or fractures, superficial and specific venous thrombosis for women - pregnancy and puerperium, oral contraception and hormone therapy. Although independent risk factors for venous thrombosis are currently identified, predictors of recurrence, effective remedies are available for primary and secondary prophylaxis, the incidence of VTE remains constant, or even increasing. This paper reflects current information on the epidemiology of venous thromboembolism and risk factors, incidence and recurrence trends, survival, healthcare costsTromboembolismul venos (TEV) include tromboza venelor profunde a membrelor inferioare sau pelvisului și complicația acesteia embolismul pulmonar (EP). TEV este frecvent întâlnit în practica clinică, în special la vârstnici și se asociază cu o supraviețuire redusă, costuri substanțiale pentru îngrijiri, o rată ridicată de recurență. Boală este multifactorială și implică interacțiuni între predispozițiile dobândite sau moștenite pentru tromboză. Factorii de risc majori ai trombozei venoase includ spitalizarea pentru intervenții chirurgicale sau boli acute, cancerul activ, boală neurologică cu deficiențe neurologice, traume sau fracturi, tromboză venoasă superficială și specific pentru femei - sarcină și puerperiu, contracepție orală și terapia hormonală. Deși actualmente sunt identificați factori de risc independenți pentru tromboza venoasă, predictori ai recurențelor, sunt disponibile remedii eficiente pentru profilaxia primară și secundară, incidența TEV rămâne constantă, sau chiar este în creștere. Prezentul referat reflectă informații actuale privitor la epidemiologia tromboembolismului venos și factorilor de risc, tendințele incidenței și recurenței, supraviețuirea, costurile asistenței medicale. Acest articol face parte din revista literaturii din cadrul proiectului de stat cu cifrul 20.80009.8007.28.Венозная тромбоэмболия (ВТЭ) включает тромбоз глубоких вен нижних конечностей или таза и его осложнение в виде тромбоэмболии легочной артерии (ТЭЛА). ВТЭ широко распространена в клинической практике, особенно у пожилых людей, и связана с низкой выживаемостью, существенными затратами на лечение и высокой частотой рецидивов. Заболевание является комплексным (многофакторным), которое включает взаимодействие между приобретенными или наследственными предрасположенностями к тромбозам. Основные факторы риска венозного тромбоза включают госпитализацию по поводу хирургического вмешательства или острого заболевания, активный рак, неврологическое заболевание с неврологическими нарушениями, травмы или переломы, поверхностный и специфический венозный тромбоз у женщин - беременность и послеродовой период, оральные контрацептивы и гормональная терапия. Хотя в настоящее время определены независимые факторы риска венозного тромбоза, предикторы рецидива, доступны эффективные средства для первичной и вторичной профилактики, частота ВТЭ остается постоянной или даже увеличивается. В этом обзоре отражена текущая информацию об эпидемиологии венозной тромбоэмболии и факторах риска, тенденциях заболеваемости и рецидивов, выживае-мости, затратах при лечении
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
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