1,721,194 research outputs found
Samuel Roberts Noble Foundation, Inc. - 2004 Annual Report
No full textContains president's message, program information, project summaries, grants list, financial statements, and list of board members and senior staff
Samuel Roberts Owens to Frances Owens, January 28, 1942
Full text linkThis letter was written by Samuel Roberts Owens to his mother, Mrs. S.J. Owens. He sends greetings to his family, especially his father, to whom he wishes a happy birthday. Owens tells his mother not to write for a while, and assures her he will write her as often as he can. He tells her not to worry, that “no news is good news” since she would hear if anything bad happened to him. He tells her he expects to get leave soon to come home, and sends his love
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
Southern African American Communities: The Portrait Photography of Florestine Perrault Collins and Richard Samuel Roberts
Full text linkThis thesis is about the portrait photographers, Florestine Perrault Collins (1895-1988) and Richard Samuel Roberts (1880-1936), and how their photographs portrayed “non-othering” representations of their sitters. Collin and Roberts’ works are compared to Southern white photographers from the Jim Crow era to argue for how “non-othering” portraits of their community members were produced. This impacts the way identity can be perceived. Religious and educational themed portraits are used to align a visually associated identity with social values the New Orleans Creole and Columbia, South Carolina communities had. This thesis considers Collins’ and Roberts’ portraits in relation to the state of their communities. The portraits in this thesis are discussed through integrating aesthetic evaluation with the Jim Crow era societal state of the New Orleans Creole and the African American Columbia, South Carolina communities. The thesis argues for the importance of these photographers’ role in giving control over visual representation to their respective communities
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
Cis-element combinations determine phenylalanine ammonia-lyase gene tissue-specific expression patterns
No full textThe bean phenylalanine ammonia-lyase gene 2 (PAL2) is expressed in the early stages of vascular development at the inception of xylem differentiation, associated with the synthesis of lignin precursors. This is part of a complex program of developmental expression regulating the synthesis of functionally diverse phenylpropanoid natural products. Analysis of the expression of PAL2 promoter-β-glucuronidase gene fusions in transgenic tobacco plants showed that functionally redundant cis elements located between nucleotides -289 and -74 relative to the transcription start site were essential for xylem expression, but were not involved in expression in leaf primordia and stem nodes or in establishing tissue specificity in petals. The -135 to -119 region implicated in xylem expression contains a negative element that suppresses the activity of a cryptic cis element for phloem expression located between -480 and -289. The functional properties of each vascular element are conserved in stem, petiole, and root, even though the xylem and phloem are organized in different patterns in these organs. We conclude that the PAL2 promoter has a modular organization and that tissue-specific expression in the vascular system involves a negative combinatorial interaction, modulation of which may provide a flexible mechanism for modification of tissue specificity.This re- search was supported by grants to C.J.L. from the Samuel Roberts Noble Foundation and the Hermann Frasch Foundation. A.L. and JRT. thank the Spanish Ministry of Science and Education and the Fulbright Foundation, respectively, for research fellowships.Peer Reviewe
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