1,721,007 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
Targeting Inflammation and Immune System in Acute Myocardial Infarction
Full text linkOver more than two decades, the concept of atherosclerosis has developed and lead to inflammatory hypothesis. Inflammation plays an important role on pathogenesis of atherothrombosis and coronary heart disease (CHD), including acute coronary syndrome (ACS). Although the management of ACS has been demonstrated to be beneficial for secondary prevention of coronary heart disease (such as using statin and aspirin) and also seemed to have positive effect on inflammation, the identification of effective management, specifically targeting inflammation, has been not been comprehensively understood.The Canakinumab Anti-inflammatory Thrombosis Outcomes Study (CANTOS) supported targeting inflammation as a potential effective treatment for chronic coronary heart disease. In the CANTOS study, canakinumab, a monoclonal antibody that inhibits interleukin-1β, reduced the level of hsCRP and caused lower risk of composite endpoint of death due to cardiovascular diseases, myocardial infarct or stroke compared to placebo. However, non-specific anti-inflammatory treatment using methotrexate in the Cardiovascular Inflammation Reduction Trial (CIRT) study did not show any reduced hsCRP and demonstrated that there is no benefit associated with cardiovascular outcomes, which left us with a question whether direct intervention on inflammation could improve cardiovascular outcomes
PERBANDINGAN KEPEKAAN MODEL MANTEL HAENSZEL DAN MODEL RASCH DALAM MENDETEKSI KEBERBEDAAN FUNGSI BUTIR DITINJAU DARI UKURAN SAMPEL
Full text linkThe aims of this research is to study the sensitivity comparison of Mantel Haenszel and Rasch Model for detection differential item functioning, observed from the sample size. These two differential item functioning (DIF) methods were compared using simulate binary item respon data sets of varying sample size, 200 and 400 examinees were used in the analyses, a detection method of differential item functioning (DIF) based on gender difference. These test conditions were replication 4 times. For both differential item functioning (DIF) detection methods, a test length of 42 items was sufficient for satisfactory differential item functioning (DIF) detection with detection rate increasing as sample size increased. Finding the study revealed that the empirical result show Rasch Model are more sensitive to detection differential item functioning (DIF) than Mantel Haenszel. With reference to findings of this study, it is recomended that the use of Rasch Model in evaluation activities with multiple choice test. For this purpose, it is necessary for every school to have some teachers who are skillfull in analyzing results of test using modern methods (Item Response Theory).Penelitian ini bertujuan mengetahui perbandingan kepekaan model Mantel Haenszel dan model Rasch dalam mendeteksi keberbedaan fungsi butir ditinjau dari ukuran sampel. Kedua metode deteksi keberbedaan fungsi butir menggunakan butir soal yang bersifat dikotomi dengan ukuran sampel yang berbeda, yaitu 200 responden dan 400 responden digunakan dalam analisis, sedangkan untuk mendeteksi ada tidaknya keberbedaan fungsi butir berdasarkan pada perbedaan jenis kelamin. Tes ini dilakukan pengÂulangan sebanyak 4 (empat) kali. Untuk masing-masing metode deteksi keberbedaan fungsi butir digunakan sebanyak 42 butir, dimana penggunaan ukuran sampel yang semakin meningkat mempengaruhi kepekaan metode deteksi keberbedaan fungsi butir yang digunakan. Hasil penelitian menunjukkan bahwa metode deteksi keberbedaan fungsi butir model Rasch memiliki kepekaan yang lebih tinggi dibandingkan dengan metode Mantel Haenszel. Berdasarkan hasil penelitian tersebut, metode deteksi keberbedaan fungsi butir model Rasch dapat digunakan untuk kegiatan-kegiatan evaluasi yang menggunakan butir soal dalam bentuk pilihan ganda. Untuk tujuan ini, sangat penting untuk setiap sekolah memiliki guru-guru yang menguasai dengan baik penggunaan Teori Responsi Butir dalam menganalisis butir soal
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
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