1,720,966 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
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
Distribution and Abundance of Chironomid Larvae in the Anzali Lagoon in 1993
No full textThe Anzali Lagoon is situated in the south - west of the Caspian Sea (37, 28 N 43,25 E). Its surface area is 218 sq.krn. To study the distribution and abundance of Chironomid larvae a sampling was conducted biweekly in 25 stations in 1992. The Chironomid larvae had the maximum abundance compared to other benthic organisms during the study period. The maximum abundance of Chironomidae was seen in spring. The population of aquatic insects was diminished gradually in summer, and again increased from the middle of autumn to winter. Their monthly average in the lagoon was 125 ± 53 per sq.m. The number of larvae in the western basin (Abkenar), southern basin (Siyahkeshim) and eastern basin (Sheyjan) were 187 ± 62, 172 ± 136 and 137 ± 86 larvae per sq.m., respectively. In the main outlets of the lagoon, there were 9 ± 2 larvae per sq.m., monthly. On the other hand no Chironomidae larvae were observed in the Siyandarvishan River located within the limits of the sampling area except in spring and in the tide breaking region (harbour).Publishe
An investigation of Capoeta capoeta feeding in Makoo Dam Lake
No full textMakoo dam lake made up in 1998, to providing agriculture water, prevention of flood water and production of electric power. It is placed in 12 km to south of Makoo city 29° 44' minute E and 39°11' N). Feeding studies occurred by using of fishing gear, include of electro fishing, gill net and beach seim, seasonally. Fish caught was in size range of 27-290 mm and 0.4- 327.7g.
Maximum and Minimum of feeding intensity was in winter and spring, respectively. Its average was 360, that showed feeding of this fish was approximately optimum in this lake. Whereas maximum and minimum of K-factor was in summer and winter, respectively. C. capoeta is a detritovorous. Therefore, it consumed from so much other food items, a.g. phytoplankton and benthos in this lake. From phytoplankton, phylum Chrysophyta and genus cyclotella from benthos; Chirooomidae and Ephemeroptera have the most important food sources. With attention to limitation of food organisms of benthos, it is not recommended introducing of other benthopelagic fishes in Makoo lake.Publishe
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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