1,720,966 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
PM10 and SO2 levels and changes in Hatay, 2007-2017
Full text linkAmaç:Hava kalitesi sağlığın en önemli belirleyicilerindendir. Hava kirliliği başta kanserler, kalpdamar hastalıkları, solunum ve sinir sistemi hastalıkları olmak üzere çoksayıda hastalık için risk faktörüdür. Çalışmanın amacı Hatay’da havakalitesini PM10 ve SO2 üzerinden yıllar itibarı ile değerlendirmektir. Gereç ve Yöntemler: Çalışmanın verileri Antakya ve İskenderun’da rutin ölçüm yapan havakalitesi izlem istasyonların 2007 ve 2017 yılları arasındaki yaptığıölçümlerden elde edildi. Yılın en az %75 gününde ölçüm yapılan veriler çalışmayadâhil edildi. Veriler http://www.havaizleme.gov.tr/ sunucusundan 24 saatlikortalamalar yıllara ve aylara göre analiz edildi.Bulgular: PM10; Tüm yıllarınortanca PM10 değeri 53 (min:0-max:995)µg/m3, ortalaması ise 66,6±53,4 µg/m3’dır. Ölçüm yapılangünler içinde, limitaşımı Antakya’da % 67,1,İskenderun’da %24,7 olmak üzere, genel ortalamada %54,3’tür. Limit aşımı en fazla %94,4 ile 2017 yılı iken, aylara göre ise %72,4 ileŞubat ayıdır. SO2; Tüm verilerin ortanca SO2 değeri 7(min:0-max:316)µg/m3’tür. GünlükSO2 ölçümlerinin %15,6’sında limit aşımı olmuştur. Antakya’daSO2 limit aşımı %11,6, İskenderun’da %22,3’tür.Yıllara göre en fazlalimit aşımı %26,4 ile 2015 yılı, aylara göre ise %41,9 ile Aralık ayıdır.Sonuç: Antakyave İskenderun’da dış ortam havası kirlidir. Hava kalitesinde yıllar itibarı ileönemli bir iyileşme görülmemektedir. Hava kalitesini DSÖ’nün değerlerine yükseltebilmekiçin sorumlu sektörler başta olmak üzere, toplumun tüm kesimlerinde farkındalıkve duyarlılık geliştirici çalışmalar gereklidir.Aim: Air quality is one of the most important determinants of health. Air pollution is a risk factor for many diseases, especially cancers, cardiovascular diseases, respiratory and nervous system diseases. The aim of the study is to evaluate air quality in PM10 and SO2 in Hatay. Materials and Methods: The data of the study were obtained from the measurements of air quality monitoring stations in Antakya and Iskenderun between 2007 and 2017. Measured data at least 75% of the year were included. Data were collected from http://www.havaizleme.gov.tr/ and 24 hours averages are analyzed by the years and months. Results: The median PM10 value of all the years is 53 µg/m3 (min: 0-max: 995) and the average is 66.6 ± 53.4 10 µg / m3. Of the measurement days, the exceeded value was 54.3% in the general, 67.1% in Antakya and 24.7% in Iskenderun. The maximum exceeded percentage was seen 94,4% in 2017 and 72,4% in February. The median SO2 value of all data is 7 µg/m3 (min: 0-max: 316). Of daily SO2 measurements, 15.6% were exceeded limit. The percentage of exceeded limit in SO2 was 11.6% in Antakya and 22.3% in Iskenderun. The percentage of exceeded limit in SO2 by years and months was 26.4% in 2015 and 41.9% in December. Conclusion: Outdoor air in Antakya and Iskenderun is polluted. There is no significant improvement in the air quality by the years. In order to improve the air quality to the values of WHO, awareness and sensitivity enhancing efforts are required in all levels of the society, especially in the responsible sectors
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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