1,725,023 research outputs found
Union Pacific (UP) 3578
No full textA photograph postcard showing Union Pacific (UP) 3578, 2-8-8-2, on eastbound freight extra, west of Cheyenne, WY, 65 cars, 20 mph
Anti-Aβ42 Aggregative Polyketides from the Antarctic Psychrophilic Fungus <i>Pseudogymnoascus</i> sp. OUCMDZ-3578
No full textSeven new polyketides, diphenyl ketone (1), diphenyl
ketone glycosides (2–4), diphenyl
ketone-diphenyl ether dimer (6), and anthraquinone-diphenyl
ketone dimers (7 and 8), together with compound 5, were isolated from the psychrophilic fungus Pseudogymnoascus sp. OUCMDZ-3578 fermented at 16 °C and identified by spectroscopic
analysis. The absolute configurations of 2–4 were determined by acid hydrolysis and 1-phenyl-3-methyl-5-pyrazolone
precolumn derivatization. The configuration of 5 was
first determined by X-ray diffraction analysis. Compounds 6 and 8 showed the highest activity against amyloid beta
(Aβ42) aggregation with half-maximal inhibitory concentrations
(IC50) of 0.10 and 0.18 μM, respectively. They also
showed strong abilities to chelate with metal ions, especially iron,
were sensitive to Aβ42 aggregation induced by metal
ions, and displayed depolymerizing activity. Compounds 6 and 8 show potential as leads for the treatment of
Alzheimer’s disease to prevent Aβ42 aggregation
Foster Family Reunions (SC 3578)
Get PDFFinding aid only for Manuscripts Small Collection 3578. Record book of annual reunions of the Foster family, held at various locations in Kentucky. Includes minutes and lists of participants
3578. Le livre des faicts du mareschal Boucicaut
No full text3578. Le livre des faicts du mareschal Boucicaut. In: Molinier Auguste. Les Sources de l'histoire de France - Des origines aux guerres d'Italie (1494). IV. Les Valois, 1328-1461. Paris : A. Picard et fils, 1904. pp. 123-124
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
Thierry Delcourt. — La littérature arthurienne. Paris, PUF, 2000 (Que sais-je ? 3578)
No full textTrachsler Richard. Thierry Delcourt. — La littérature arthurienne. Paris, PUF, 2000 (Que sais-je ? 3578). In: Cahiers de civilisation médiévale, 46e année (n°181), Janvier-mars 2003. pp. 80-82
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
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