1,722,802 research outputs found
[Erie Railroad Co., Engine Drawing Card, Sketch No. 8109]
No full textThis engine drawing card was created for Erie Railroad Company, Class 16-52 2/4 E. Section J-16 2/4 E. Sketch 8109. Copy Spec. [field left blank]
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
THE ECONOMICS OF GRAIN PRODUCER CARTELS
Get PDFThe objective of this study is to measure economic payoffs from a grain cartel. Two basic approaches to extract economic rents are considered: (i) Mandatory supply controls to restrict production and raise grain price, and (2) export price discrimination using export taxes or subsidies. The economic impacts of different producer cartel scenarios were estimated using a long-term, nine-region world trade simulation model incorporating the assumptions of neoclassical trade theory. The SWOPSIM program was used to write the model equations. Economic Research Service trade data for 1989 were used to initialize the model. Results reflect long-run changes from 1989conditions and are at 1989 general price levels. The model simultaneously estimated outcomes in markets for nine commodities: beef, pork, poultry meat, wheat, corn, coarse grains (other than corn), oilseeds (soybeans, rapeseed, and sunflower seed), oilmeal, and sugar. Cross-effects among commodities and input-output relationships between field crop and livestock production are accounted for by substitution and complementary coefficients in behavioral equations. Countries and groups of countries included in the model are Australia, Canada, the European Community (EC), European Free Trade Association (EFTA), the United States (US), Japan, and the rest of the world (ROW). The simulation results report the consequences of restricting only US grain production (wheat, corn, and other coarse grains) from 5 to 20% below the 1989 production level. Grain supply restrictions were presumed to be mandatory, hence taxpayers incurred no additional outlays over those in 1989 . World price increases were modest for wheat, but greater for corn and other coarse grains in part because of differences in market share among grains. US consumers of grain and grain products buy less at higher prices and are worse off, as is the country as a whole. Consumer surplus falls nearly 7 billion in rents they collect from current programs. It seems unlikely that a producer group would risk gains of this size for the prospect of cartel rents a sixth the size or less from international markets. Gains to US producers are less for a wheat cartel than for either the feed grain cartel or for the wheat-feed grain cartel included herein. The unfavorable outcomes originate from the export demand for US wheat made highly elastic by opportunities to substitute feed grain for wheat in production and consumption especially in the long run. That is, a high wheat price and controlled production of wheat encourages importers to produce wheat, cut back feed grain production, and import low-cost feed grains.Crop Production/Industries, International Relations/Trade,
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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