1,720,972 research outputs found
Process-based assessment of erosion dynamics in the Upper Orcia Valley (Southern Tuscany, Italy): A new semi-quantitative integrated approach
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Applicazioni GIS per lo studio dell'erodibilità dei suoli nel Parco Naturale di Portofino
No full textApplicazione di metodi geostatistici per la valutazione delle forme di erosione del suolo: il caso di studio di Piana Crixia (Sv)
No full textAssessment of Subsurface Neolithic/ Palaeolithic sites in the Southern Gargano Area, Apulia, Italy using a 3D geo-electric resistivity approach
No full textCaves are important sediment traps both for sediment formed inside and for sediments transported from outside into the caves. The stratigraphic reconstruction of the cave’s deposits combined with the study of the archaeological and biological contents (remains of plants or animals) provides an excellent record of the climatic changes happened in the cave and offers information about landscape evolution. Since the study area close to Manfredonia, Southern Gargano, Italy is characterized by important archaeological sites (Occhiopinto Cave) we investigated the area north of Manfredonia in order to get an idea of cavities and their spatial distribution in the ground.In a previous work we tested a 2D approach based on 8 transects. In the present study we used a parallel setting of transects in order to perform a 3D model of the underground structures. Therefore three different arrays were tested, Dipol-Dipol; Wenner and Schlumberger. Schlumberger array is said to be superior in distinguishing lateral from vertical variations in
resistivity in respect to Wenner. Whereas Dipol-Dipol array is especially useful for measuring lateral resistivity changes. The utilized electrode spacing for the surface transects was 2m. In order to calibrate and validate the analys is we made 2 core drillings yielding information on the stratigraphy and cavities in the underground. With the given value ranges and the respective electric resistivity arrays we were able to identify the location and depth of the major cavities in 3D fora ca. 25 ha test plot are
Assessment of the spatial distribution of Soil organic carbon and related factors in the regional park of Portofino (Liguria-Italy)
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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
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
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe 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
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