1,721,008 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
The location of manure accumulated in cattle livestock barns and its interaction with the environment
No full textAppropriate 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
Cultural energy analysis on broilers reared in different capacity poultry houses
No full textData obtained from 4 different capacity houses were evaluated to analyse the cultural energy and perfor- mance of broilers. Capacities of housings were 20,000, 25,000, 30,000 and 60,000 birds per production peri- od and they were assigned as HI, HII, HIII and HIV, respectively. The study was conducted in 2005 in which there were 6 production periods of 45 days. Data collected for each period were: date of starting and finish- ing; number of chicks entered and broilers sold; live weight at slaughter; carcass weight; feed consumption for starting, growing and finishing phase; labour; medication, vaccination and disinfectant; electricity con- sumption; heating and cooling methods and amount spent; distance for transportation of feed, chicks, broil- ers, wood shaving, limestone; and other miscellaneous expenditures. Ross 308 chickens in all houses received the same commercial feed and water ad libitum. Chicks were reared under a conventional temper- ature regimen. Chicks were fed starter, grower and finisher diets according to their ages. Even though capac- ities for houses were different their stocking densities were 16.36, 16.00, 16.38 and 16.54 birds/m2 for HI, HII, HIII and HIV, respectively. For cultural energy analysis, feed, transportation, labour, machinery, electric- ity, brooding, and other inputs were calculated and corresponding energy values for each input were obtained from literature. For the analysis it was assumed that carcasses would have 18.2% protein and 15.2% fat. Total cultural energy invested in broilers in HIII was lower than that of broilers in HI (P< 0.05). Energy input per kg live weight gain and per kg carcass of HIII were lower than that of HI (P< 0.05, P< 0.01, respective- ly). The HIII had lower cultural energy ratio for protein energy output than HI (0.01). Energy efficiency (kcal input/kcal output) of HIII was better than that of HI (P< 0.01). Results of the study showed that increasing capacity of housings decreases cultural energy input up to certain capacity and indicated that increasing housing capacity without interfering with performance could be a means for energy conservation in sustain- able agriculture
AMMONIA TRAP FOR DECREASING AMMONIA LEVEL IN BROILER HOUSE - A PATENTED SYSTEM DESIGN
No full textThe urea existing in broiler manure is converted into ammonia gas by urease enzyme and consequently the concentration of ammonia rising in the poultry house which results decline on broiler productivity. To reduce in-barn ammonia level a patented ammonia trap system is developed System is looking like a miniature cooling tower. This so-called cooling tower is filled by the polyethylene balls to increase surface area and balls are wetted continuously by 5 M of phosphoric acid solution. In-barn air forced to pass through within the balls, ambient ammonia reacts by phosphoric acid and ammonium phosphate obtained as a by-product which can be used as a mineral fertilizer. Initial results revealed that the system is effective on ammonia reduction in barn and it was patented by Turkish Patent Institute with the patent Nr: TR 2012 13292 Y. System is under development stage; however, meanwhile we did not maintain patent protection. Thus, we would like to encourage farmers to use this system to reduce ammonia levels in their facilities to improve their benefit as well as reduce atmospheric pollution
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
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