1,721,284 research outputs found

    DegP related proteases in Escherichia coli and carboxyl-terminal tagging of proteins for degradation

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    Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Biology, 1996.Includes bibliographical references.by Patrick Robert Henson Waller.Ph.D

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

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    We 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

    Patrick Robert Sydnor Civil War Era Historic Site and Log Cabin

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    The Patrick Robert Sydnor Civil War Era Historic Site and Log Cabin are located in Mecklenburg County, Virginia near routes 15 and 58. Surrounded by wooded lots and farmland, the rural setting complements the historic nature of the site. Located on a wooded area of 4.41 acres, the cabin is listed on the National Register of Historic Places and the Virginia Landmarks Register. Built during the antebellum era, the cabin was used to house the enslaved workers of the nearby Prestwould Plantation. The log cabin site is named after Patrick Robert "Parker" Sydnor (1854-1950), a locally well-known Virginia tombstone carver, who lived in the cabin during the late nineteenth and early twentieth centuries. Parker Sydnor was born into slavery in Halifax County. He worked for forty years at his craft and there is evidence that he began making gravestones before 1900. The log cabin has undergone structural transformation because it was continuously occupied by African American families and maintained to the best of their abilities up until the 1970s. Most of those occupants were immediate descendants of enslaved African Americans at the Prestwould and Sydnor plantations in Mecklenburg and Halifax counties. Thus the Sydnor log cabin shifted in physical appearance and function throughout various historical periods after slavery when African American families struggled to survive and succeed. The home place was a foundation for freedom, autonomy, self-reliance, faith and the legacy of endurance. The Sydnor log cabin was characterized by an enslaved workforce, freedwomen and freedmen, sharecroppers, and unconditional poverty. Literacy lnterActives, Inc. requested that the Community Design Assistance Center (CDAC) develop plans to rehabilitate the Patrick Robert Sydnor Log Cabin and design a new visitors center. These two features are strengthened with the design of a conceptual master plan that includes a nature trail, amphitheater, natural play area, various gardens and caretaker's house. Throughout the design process, the CDAC team worked collaboratively with Literacy lnterActives, Inc. and members of the Mecklenburg County community to develop conceptual plans for the historic site. This report documents the design process and describes the final concepts that were developed.Cover title."Prepared for Literacy InterActives, Inc., August, 2013.

    Dispelling the Myths Behind First-author Citation Counts

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    We 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

    Author Index

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    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We 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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