1,721,024 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
Effect of deboning time, ageing period and collagen characteristics on horse Semimembranosus meat quality
Get PDFHorse meat is a good source of iron and unsaturated fatty acids, which make it a suitable substitute for conventional meat. To sustain its consumer acceptance in a competitive global market, ensuring that Canadian horse meat is of the highest quality is of prime importance. Currently, in Canada horse meat is harvested either through hot boning (after 2 h post mortem) of the carcass or after the carcass is completely chilled to less than 4 ºC (40 h of post mortem). Additional efficiencies in horse meat production potentially could be gained by decreasing the carcass deboning time from 40 h to 17, 26 or 30 h. To ensure that Canadian horse meat quality remains of the highest standard, modifications to the time of deboning need to be considered in light of subsequent post mortem ageing and their effect on the resultant meat quality. Semimembranosus muscles (n = 36) were collected over four consecutive weeks from the right sides of horse carcasses de-boned at 17, 26 and 30 h post mortem (n = 12 per week, 4 at each post mortem period) and steaks from the muscles were aged for 3, 30, 60 and 90 days (n = 36 per period). Meat L* (lightness) decreased (p < 0.05) while b*(yellowness) increased with increasing length of deboning time and ageing period. Purge loss increased with increasing ageing period (p < 0.05) and was highest throughout the ageing period in muscles deboned after 17 h of chilling. Warner Bratzler shear force (WBSF) decreased with length of ageing (p < 0.05). Muscle perimysium (r = -0.52, p < 0.001), muscle collagen (r = -0.35, p < 0.05) and intramuscular fat (r = -0.38, p < 0.05) contents were negatively correlated with WBSF. Perimysial collagen (r = 0.47, p < 0.05) and pyridinoline (r = 0.37, p < 0.05) concentrations and muscle pH (r = 0.46, p < 0.05) were positively correlated with WBSF. Muscle pH, perimysial collagen concentration and intramuscular fat collectively explained 53% of the total variation in WBSF, while 63% of the variation in collagen heat solubility was explained collectively by muscle weight, Ehrlich chromogen concentration, purge loss and intramuscular fat. Results indicated that deboning at 26 h post mortem did not change horse semimembranosus quality relative to current practices, but sensory analysis is needed to ascertain the full impact of the meat quality changes observed at 30, 60, and 90 d ageing. This research confirmed that collagen contributes to the WBSF of horse meat, supporting further investigation into the effects of animal age and breed on horse meat toughness
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
A Small Macroeconometric Model of the Bangladesh Economy
Get PDFAbstract This paper describes a macroeconometric model of the Bangladesh economy using annual time series data from FY-1980 to FY-2006. The model is constructed with seven macroeconomic blocks, consumption, investment, production, government, trade, money, and price, capturing transmission among blocks. Structural equations under each block are estimated using short-run error correction model, where long-run equations into error correction terms represent economic theory. Hendry's general to a specific procedure is followed to get final short-run error correction equations. Validity of the model is checked both within the sample and out of sample cases. Results from validity study mark that the model is reasonably useful for forecasting and policy analysis. JEL Classification: C51, E1
Md. Abid Hasan Rahat,
No full textAbstracts−Business to business marketing primarily refers to trade dealings between two businesses. This business can be between manufacturers and wholesalers or between wholesaler and retailers. To get a position in b2b market you have to thing over the target market strategy.Business-to-business marketers target only other companies; they have significantly small targeted market than customer marketers.Target market segmentation is closely linked with the positioning strategy of a company
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