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FERRARA, Gerardo
No full textLetter from Rodolfo Elías Calles to Gerardo Ferrara requesting him not to deliver a water pump, which is property of El Mante Hacienda. / Carta de Rodolfo Elías Calles a Gerardo Ferrara, solicitándole no entregar la bomba de agua que es propiedad de la Hacienda El Mante
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
Dermoscopy Insights Into Nevogenesis : 'Abtropfung' vs. 'Hochsteigerung'
Full text linkTwo concepts, the “Abtropfung” and the “Hochsteigerung,” have been used to explain the natural evolution of melanocytic nevi. The nevi in Figure 1 and Figure 2 are located on the respective backs of a 25- and a 20-year-old woman. By dermoscopy, the former first exhibited a central bluish pigmentation indicating pigmented cells in the papillary dermis (Figure 1A), while a significant color change toward brown occurred after 8 months (Figure 1B), reflecting the presence of pigment at the dermoepidermal junction. The nevus in Figure 2 reveals an opposite trend after 1 year of follow-up, with significant change of the color from brown (Figure 2A) to blue (Figure 2B). Whether this is caused by a real movement of cells (upward or downward) or by a different activation and/or maturation level of melanin-producing melanocytes remains speculative. Based on our observation, currently both concepts or the concept of “nevus activation” seem to be plausible to explain some steps in the evolution process of melanocytic nevi
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
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