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HISTOPATHOLOGICAL CHANGE IN THE PRE-ANEURYSMATIC SEGMENT OF THE ABDOMINAL AORTIC ANEURYSM
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Rat adrenal cortex response to ketoconazole treatment assocated with subacute stress: morpho-histochemical research
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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
Unmanned aerial vehicles and Geographical Information System integrated analysis of vegetation in Trasimeno Lake, Italy
No full textThis study examined the potential of using high-resolution image data acquired by micro-UAV (unmanned aerial vehicle) for analysing large-scale environmental and hydraulic parameters. A procedure based on image data acquisition and processing is discussed and applied to a test case, Trasimeno Lake. This lake was selected for this study because of its importance in cultural, environmental and social context. This study focused on the temporal and spatial scale extension of reed beds (Common Reed). The Common Reed can strongly influence the ecological balance of the lake and particularly its evapotranspiration levels, which significantly influence the lake's water balance. Moreover, the lake provides valuable ecosystem services, including phytoremediation water treatment and the absorption of carbon (carbon sink). A presentation of the study area from a geographical and morphological perspective is provided; then, the platform (UAV and sensors) and the processing system of the images are discussed. The results concerning the accuracy of the method for the construction of georeferenced orthophotographs, and the preliminary results obtained from flights performed at different times and growing seasons of reed beds of Trasimeno Lake, are presented. This study also provides convincing evidence that the orthophotographs obtained with a low-cost UAV system can be used to analyse changes in the extension of the Phragmites australis (Common Reed) of Trasimeno Lake, and the alteration of some environmental parameters of the vegetation, in a temporal and spatial scale. It also highlights that this system can be used to facilitate analyses performed by traditional remote sensing method
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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