1,721,434 research outputs found
Johnson, Emma Jo- case, undated
No full textScan of the folder titled "Johnson, Emma Jo- case, undated" (box 2024, folder 18)
Case files - Johnson, Emma Jo, 1953
No full textScan of the folder titled "Case Files - Johnson, Emma Jo, 1953" (box 2028, folder 2)
Review of Darkytown Rebellion Installation by Kara Walker
No full textJohnson, Emma. (2005). Review of Darkytown Rebellion Installation by Kara Walker. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/167855
Exploiting Data-Rich Regions of Interest in Static Signature Verification
No full textThe identification and subsequent utilisation of regions of interest within biometric sample images can provide useful information that can benefit recognition performance. If a specific area of a biometric sample is data-rich in terms of feature quantity or quality then these regions of specific interest can be exploited, for example in terms of processing algorithm selection and information weighting. Also, if intra-area stability/feature repeatability can be obtained a-priori this information may be used to enhance biometric systems. The objective of the work documented in this paper is to develop a best practice framework for the utilisation of sub regions of interest within biometric signature images to enable an optimisation of systems. Our hypothesis is that by sub-dividing a signature image, information richness within sub-divisions can be exploited by weighting grid zones. Signature images were divided using 14 experimental template patterns. Using the GPDS-960 off-line signature corpus, the verification performance achieved using each weighted method was compared against a non-gridded baseline implementation. Significant improvements were noted for a number of the defined grid zones indicating the potential for the approach
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
The effects of diethylstilbestrol (des) on the concentration of RNA in the developing ovaries of the 16-18 day-old chick embryo, 1978
Full text linkDiethylstilbestrol (DES), a synthetic estrogen hormone, has been found to be carcinogenic in certain animal species. It has been the subject of clinical and scientific interest since the early 1900's. Although a large amount of evidence has been reported regarding its possible carcinogenic effect during the adolescent period, little is known about DES' causal role of inducing changes in chick embryos. It was the purpose of this investigation to obtain data which would determine the effects of DES on ovaries of the 16-18 day old chick embryos. Our results suggest that 0.5 cc of DES injected on day 5 of gestation causes an increase in the mean concentration of crude RNA in the 16, 17 and 18 day-embryos. It is hoped that this study will advance the thinking and stimulate further study leading to the elucidation of the causal role of DES in inducing this anomaly
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
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