1,721,028 research outputs found
Onset of Bronchodilation of Extrafine Beclomethasone/Formoterol Combination Is Equivalent to Budesonide/Formoterol Combination
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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
Clinical assessment of asthma and COPD.
No full textAsthma and COPD are 2 different chronic inflammatory respiratory disorders that may share one common functional abnormality, i.e. poorly reversible airflow limitation . According to definitions, airflow limitation in asthma is reversible or at least partly reversible either spontaneously or with treatment , whereas in COPD airflow limitation is usually poorly reversible or not reversible at all.In the pathogenesis of both asthma and COPD, individual genetic susceptibility and environmental exposures are relevant for disease expression. Cigarette smoking is the major cause of COPD; the causes of asthma remain largely uncertain, even if atopy and allergen exposure have certainly a major role asthma is in fact a phenotypically heterogeneous disorder and, over the years, many different clinical subtypes of asthma have been described; in particular asthma starting in adulthood, noneosinophilic asthma, and asthma in obese subjects constitute an important part of the adult asthma population, and are still poorly characterize. The differential diagnosis between asthma and COPD is quite simple when considering the typical clinical and functional features of these 2 diseases. In this context, it is easy to recognise asthma in a young, atopic, non smoking subject with recurrent dyspnoea, wheezing or chest tightness, and variable reversible airflow limitation. It is also easy to diagnose COPD in a subject older than 40, smoker, presenting with dyspnoea, chronic cough, sputum and fixed airflow limitation and no history of asthma or allergic diseases. The difficulty comes when trying to make a diagnosis of asthma and/or COPD in a middle age or elderly patient, smoker, maybe atopic and/or with a history of asthma, complaining chronic dyspnoea but not wheezing, nor chronic cough and sputum, and presenting with poorly reversible airflow limitation. The difficulty comes also when trying to make a confirm diagnosis of asthma or establish a diagnosis of COPD in a middle age or elderly patient, with a clear history of atopy and asthma, bronchodilator reversibility, recurrent wheezing, but who also smokes and have chronic cough and sputum, and dyspnea, that are nor suppressed by inhaled steorids. In these “borderline” patients, differential diagnosis might become important from a clinical and therapeutic point of view. In fact, inhaled glucocorticosteroids are the first choice regular medication in asthma but not in COPD, whereas regular bronchodilators are the first choice regular medication in COPD but not in asthma, and thus the differential diagnosis between asthma and COPD is important to decide whether or not prescribing regular treatment with steroids or bronchodilators in patients with overlapping features
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