1,721,052 research outputs found
Viajes con mi cura: las andanzas de Graham Greene por España y Portugal
No full textSe sabe que el novelista inglés Graham Greene (1904-1991) viajó en diversas ocasiones a España en los últimos años de vida para descansar en compañía de su amigo español, el sacerdote y profesor de la Universidad Complutense Leopoldo Durán. También que esos viajes, casi siempre en verano, proporcionaron inspiración para escribir su principal novela hispana, “Monsignor Quixote“ (1982). Tras la muerte de Greene en 1991, Durán elaboró el libro de las memorias de su amistad, “Graham Greene. Amigo y hermano“, pero se resistió a ofrecer una crónica detallada de cada periplo y optó por no ser muy descriptivo. Aún más, el análisis textual de la cronología viajera revela contradicciones internas y errores de datación. El presente libro pretende reconstruir lo que Durán rehusó ofrecer: una relación de cada uno de los viajes de Greene por la península ibérica entre 1976 y 1989, detallando los preparativos, itinerarios, anécdotas, acompañantes, temas de conversación, repercusiones, etc., así como un resumen de sus posibles reflejos en la biografía del autor. El análisis de las andanzas de Greene por España con Leopoldo Durán nos ayuda a comprender mejor la génesis y las resonancias de su novela más hispana, “Monsignor Quixote“, que con el tiempo pasó a ser su favorita, así como de la adaptación televisiva que vendría después. Esta reconstrucción tiene un notable valor biográfico para los aficionados y estudiosos de Greene, pues aporta dimensiones inéditas de su personalidad en un entorno relajado, sin duda el más apto para conocerle mejor. De la mano de su amigo español viajaremos con el escritor, intercambiaremos opiniones, literatura, risas, veremos nacer y crecer novelas, observaremos su buen y mal humor y sus oscilaciones, y nos adentraremos en su mundo privado. También especularemos sobre los verdaderos motivos que le trajeron a España, quizá en relación con su faceta de informador del SIS. En suma, le acompañaremos en momentos concretos de los últimos años de su vida, e intentaremos conocer mejor al considerado mejor novelista inglés de su generación
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
Cetyltrimethylammonium hydroxide (CTAOH) as a general, ecofriendly catalyst for the formation of carbon–carbon bond through nitroalkanes
No full textNitroalkanes have been found to give good yields in Michael and nitroaldol (Henry) reactions by the use of a catalytic amount (10 mol%) of CTAOH, at room temperature and under solvent free conditions and in very short reaction times. The methods do not need a large excess of the nitroalkanes and show good chemoselectivity toward further functionalities
One-pot synthesis of polyfunctionalized, alpha, beta-unsaturated nitriles from nitroalkanes
No full textThe reaction of nitroalkanes with 2-chloro-3-phenylsulfonylpropanenitrile, in the presence of three equivalents of DBU at −10°C, allows the synthesis of polyfunctionalized α,β-unsaturated nitriles. The method proceeds through three different reactions carried out in a tandem sequence, allowing the one-pot formation of the α,β-unsaturated nitriles, generally, with complete E stereochemistry
Michael addition of a-nitro ketones to conjugated enonesunder solventless conditions using silica
No full textConjugate addition of both linear and cyclic a-nitro ketones to conjugated enones, can be efficiently performed
under heterogeneous, solvent-free and mild acidic conditions, by silica. The procedure allows good yields of
2-nitro-1,5-diones and, it worthy of note that no products arising from the cleavage of a-nitro cycloalkanones were
observed under these reaction conditions. Moreover, during the work up, the need of extraction with an organic
solvent can be avoided since the crude mixture can be directly charged to a chromatography column for
immediate purification
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
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