1,721,063 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
Comparison of Growth Performance of ‘Common Catfish Ameiurus melas, Rafinesque1820’, Reared in Pond and in Recirculating Aquaculture System
No full textA trial was conducted to evaluate the growth performance and survival of common catfish, Ameiurus melas.
A total of 54,420 catfish juveniles (5.1 ± 1.2 g; 6 ± 1 cm) were reared in two groups: PN group, represented by
3-1,000 m2 ponds; RC group composed by 3-2 m3 indoor tanks working in closed recirculated system. In these two
groups, catfish were reared at two different densities (PN=15 fish m3; RC=1,570 fish m3) for 181 days. The main
water physico-chemical parameters were monitored and the main blood metabolites and growth performances were
evaluated. Catfish exhibited a final mean body weight similar in the two groups (PN=142.7 ± 30 g; RC=151.5 ±
34 g). The survival rate was high for both PN (86.6%) and RC (99%). A very high stocking density was reached in
the RC system (235.5 kgm3). The presence of multi-trays in the RC tanks may be helped the specimens to reduce
aggressiviness and territorial competition as demonstrated by blood metabolites which did not affect by rearing
conditions. This trial showed that common catfish can be successfully cultured in indoor systems without negatively
affecting productive performances (growth and survival) and the natural resources
Wreckfish, Polyprion americanus (Bloch and Schneider 1801), a promising species for aquaculture: proximate composition, fatty acid profile and cholesterol content of wild Mediterranean specimens
No full textThe proximate composition and fatty acid profile of 62 wreckfish (Polyprion americanus) specimens
caught in the northern marine area of the island of Sardinia in the Mediterranean Sea were
determined. Over a 2-year period, fish were captured in 14 surveys and grouped according to body
size, sex, and harvest. Two distinct sizes were collected at different water depths: the largest wreckfish
(>16.5 kg, >65 cm) of both sexes were collected from deep waters (500–560 m); small individuals,
with significantly lower body length and weight (4.5–11 kg) were found in shallower waters. The
smallest groups had the lowest moisture content (73.19–73.81%), the greatest amount of protein
(20.42–20.60%) and the highest lipid level (4.04–4.36%) compared to other groups. The three groups of
the smaller sized wreckfish had the high proportion of 18:1 (27–27.9%). DHA was dominant in 11 of
the wreckfish survey groups, representing 24.2–25.7% of total fatty acids. Findings could potentially
be applied to optimize feeding husbandry protocols of fish farming practices in aquaculture. Data
obtained here could be used to elucidate the nutritional traits that characterize meat quality of
wreckfish, which are becoming increasingly important considerations of consumers and human
health specialists
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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