1,720,957 research outputs found
El maestro en alquimia y magia
No full textLos estudios recientes conducen a una considerable reevaluación del papel desempeñado por el andalusí Maslama b. Qāsim al-Qurṭubī (muerto en 353/964) en la historia del pensamiento árabe. Además de la figura del maestro en hadiz (tradición del Profeta), descubrimos hoy una personalidad compleja, que fue un importante transmisor del saber entre Oriente y la Península Ibérica y autor él mismo de dos de las más importantes obras de ciencias ocultas en Isla
Las Epístolas de los Hermanos de la Pureza en al-Andalus
No full textAl margen del islam ortodoxo, las Epístolas ofrecen un sistema de pensamiento que, por su punto de vista tolerante y universalista, la amplitud de su campo de pensamiento científico y la meticulosa organización de este conocimiento, resultaba evidentemente atractivo para muchos, dentro y fuera del isla
Astrological and Prophetical Cycles in the Pseudo-Aristotelian Hermetica and other Islamic Esoterica
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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
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
The Ikhwān al-Ṣafā’ on Angels and Spiritual Beings
No full textIn several places of the Rasā’il Ikhwān al-Ṣafā’ is found the mention of angels in combination with the physical description of the cosmos. Each of the seven planets, but also the starry sphere and the all-encompassing sphere – which the Brethren of Purity identify with the Qur’ānic Footstool and the Throne respectively – are there associated with specific angels from the Islamic tradition. These passages are a good example of how the authors of this encyclopaedic corpus made use of Neoplatonism to read the Qur’ān and to interpret it symbolically. My paper will focus on the salient features of these descriptions and, by comparing the Brethren’s angelology with other systems in Arabic literature, seek to trace the possible influence of the Ikhwān al-Ṣafā’ on later representatives of Islamic philosophy and mysticism
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