1,720,957 research outputs found
CHANGE OF GENETIC PARAMETERS FOR NATIONAL EVALUATIONS OF ITALIAN HOLSTEIN AND EFFECT ON INTERNATIONAL PROOFS
No full textPROCEEDINGS OF THE OPEN SESSIO
Consequences of differences in pricing systems between regions on economic values and revenues of a national dairy cattle breeding scheme in Italy
No full textProfit equations were used to determine the relative importance of different mil yield traits, with and without product limitations. Economic value were calculated for three different Italian payment systems: the “average” payment system emplyed by Unalat [Unalat, 1995. Accordo interprofessionale per la determinazione del prezzo del latte per il periodo dal 174/1994 al 31/3/1995. Roma, Italy. P.10 (personal correspondence).], payment system in areas of Parmesan cheeseproduction, and the payment system that is used in deriving the current economic weights. The Parmesan payment system resulted in the highest marginal value of milk with average composition in situations without herd output limitation. With aherd output limitation considering milk yield and fat content, marginal value decreased by 47 to 52%. The economic value of fat relative to that of protein ranged from -0.031 to 0.135 without herd output limitation and -0.432 to -0.020 with herd output limitation. The relative economic value of carries ranged from -0.012 to 0.07 without and -0.020 to 0.042 with herd output resctriction. The sensitivity analysis revealed taht the average herd yield levels for fat, and especially protein, are the main factors influencing the relative economic values. Losses, which occured from and economic repsonse of a breeding scheme due to changes in pricing systems ranged from 4.2 to 16.7%, whereas with the herd output limitation losses up tp 57.0% were found. Losses in economic response to selection indicated that there is potential for diversification of the breeding goal. The benefits of diversification at the population level have to be balanced against the costs of running a larger selection programme in deciding on a longer-term selection policy
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
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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