1,720,979 research outputs found
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
Alcohol septal ablation:Improving the treatment of obstructive hypertrophic cardiomyopathy
Full text linkHypertrofische cardiomyopathie (HCM) is de meest voorkomende overerfbare cardiale aandoening, aanwezig bij 1 op de 500 mensen. HCM wordt gekarakteriseerd door linkerventrikel hypertrofie en gaat vaak samen met (provoceerbare) obstructie van de linkerventrikel uitstroom baan. De eerstelijns behandeling van patiënten met een significante obstructie van de linkerventrikel uitstroom baan is met negatief inotrope medicatie (beta-blokkers, verapamil en disopyramide). In de 5-10% van de patiënten die ernstig symptomatisch blijven ondanks optimale medicamenteuze therapie is septale reductie therapie geïndiceerd, door middel van chirurgische myectomie of alcohol septum ablatie (ASA). ASA werd geïntroduceerd door Ulrich Sigwart in 1995 als een percutaan alternatief voor chirurgische myectomie. Omdat er door de intracoronaire injectie van alcohol een potentieel aritmogeen ablatie-litteken ontstaat, waren er veel zorgen over de veiligheid van ASA. In het polariserende debat over de rol van ASA dat volgde zijn de meeste argumenten gebaseerd op kortlopende follow-up studies. Het doel van deze thesis is om met behulp van lange-termijn resultaten 1) te kunnen beslissen over de rol van ASA binnen de behandeling van obstructieve HCM, ten opzichte van myectomie; 2) manieren te vinden om de uitkomst van ASA te verbeteren; 3) te onderzoeken welke patiënten baat kunnen hebben bij ASA, buiten de huidige ‘expert opinion’ richtlijnen om; en 4) ASA patiënten te betrekken bij huidige risicostratificatie-modellen voor de voorspelling van plotse hartdood
Alcohol septal ablation:Improving the treatment of obstructive hypertrophic cardiomyopathy
Full text linkHypertrofische cardiomyopathie (HCM) is de meest voorkomende overerfbare cardiale aandoening, aanwezig bij 1 op de 500 mensen. HCM wordt gekarakteriseerd door linkerventrikel hypertrofie en gaat vaak samen met (provoceerbare) obstructie van de linkerventrikel uitstroom baan. De eerstelijns behandeling van patiënten met een significante obstructie van de linkerventrikel uitstroom baan is met negatief inotrope medicatie (beta-blokkers, verapamil en disopyramide). In de 5-10% van de patiënten die ernstig symptomatisch blijven ondanks optimale medicamenteuze therapie is septale reductie therapie geïndiceerd, door middel van chirurgische myectomie of alcohol septum ablatie (ASA). ASA werd geïntroduceerd door Ulrich Sigwart in 1995 als een percutaan alternatief voor chirurgische myectomie. Omdat er door de intracoronaire injectie van alcohol een potentieel aritmogeen ablatie-litteken ontstaat, waren er veel zorgen over de veiligheid van ASA. In het polariserende debat over de rol van ASA dat volgde zijn de meeste argumenten gebaseerd op kortlopende follow-up studies. Het doel van deze thesis is om met behulp van lange-termijn resultaten 1) te kunnen beslissen over de rol van ASA binnen de behandeling van obstructieve HCM, ten opzichte van myectomie; 2) manieren te vinden om de uitkomst van ASA te verbeteren; 3) te onderzoeken welke patiënten baat kunnen hebben bij ASA, buiten de huidige ‘expert opinion’ richtlijnen om; en 4) ASA patiënten te betrekken bij huidige risicostratificatie-modellen voor de voorspelling van plotse hartdood.Hypertrophic cardiomyopathy (HCM) is the most common inheritable cardiac disease present in 1 in 500 of the general population. HCM is characterized by left ventricular hypertrophy and is often associated with (provocable) left ventricular outflow tract obstruction. First line treatment in patients with significant left ventricular outflow tract obstruction is with negative inotropic drugs (beta-blockers, verapamil, and disopyramide). In the 5-10% of patients who stay highly symptomatic despite optimal medical therapy, septal reduction therapy is indicated, either by surgical myectomy or alcohol septal ablation (ASA). ASA was introduced as a percutaneous alternative to surgical myectomy by Ulrich Sigwart in 1995. Initial performance of ASA was shrouded in safety concerns, due to the intracoronary injection of ethanol, creating a potentially arrhythmogenic ablation scar. In the polarizing debate concerning the role of ASA in the treatment of obstructive HCM, most arguments were based on short-term follow-up studies. In the present thesis we set out to provide long-term results following ASA to 1) decide on its role in the treatment of obstructive HCM, as compared to myectomy; 2) seek ways to improve the outcome of ASA; 3) investigate which patients can benefit from ASA, outside of current expert opinion guidelines; and 4) engage ASA patients in current sudden cardiac death risk prediction models
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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