1,720,960 research outputs found
Geological map of Tuscany (Italy)
Full text linkThe main map covers the territory of the Tuscany Region, in Central Italy and shows the main stratigraphic and tectonic features of the internal part of the Northern Apennines. This is characterized by nappe superposition well exposed in the Apennine chain (in the eastern part of the map), as well the effects of post-nappe extensional tectonics, originating in Miocene-Pliocene and younger basins bordered by metamorphic core complexes, covering most of the central and southern part of the Region. The map is at 1:300,000 scale and is based on 1:10,000 field mapping
Seamless database and digital geological map of Emilia-Romagna, Marche, Tuscany and Umbria regions
No full textThis paper aims to provide a concise description of the experimentation of GIS methodologies for the realization of a seamless and harmonized geological database for Central Italy, especially for the Emilia Romagna, Tuscany, Marche and Umbria regions. During the last few years, these regions have been developing a geological survey, and both public and private bodies worked together to complete the best geological products to describe and document the geological knowledge of their territory. The collaboration of these regions aims to the realization of calibrated geological mapping and began with the CARG National Project and continued later with the development of innovative technical solutions relating to the collection, archiving and distribution of geological data of any type. The geological cartography and its related geological database at the 1:10.000 scale of the whole area are made freely available by the local administration
Automatizzazioni nella Banca Dati CARG: rappresentazioni cartografiche di dati geologici e geomorfologici
No full textOn the CARG database and its related cartographic production, one problem difficult to solve was the symbolic representation of the polygonal elements such as alluvial conoid, debris flow, etc. In fact those polygons are distinguished by characteristic fan shape, dimensions, orientation and position of which are extremely variable. With the advent of the Representation on ArcGIS 9.2, with which it's possible associate a symbol and change his space extent and orientation based on values directly stored in the GeoDataBase, this problem had overtaken. Exploiting some empirical expression that use the geometrical parameter called "shape index", we produced automatic procedures with the Model Builder that allow us to create these geo-thematic elements in a automatic way perfectly coherent with the geologicalcartographic tradition
Multidisciplinary approach in the study of marble quarries in the apuan alps
No full textThe Apuan Alps (Northern Tuscany, Italy) represent the world’s most important marble mining area, with historical significance and particular geomechanical rocks properties. A detailed knowledge of existing marble rock volumes is required in proper planning and management of mining activities. The aim of this study is the 3D reconstruction of marble formation, taking into consideration the polyphasic deformation history of the Apuan Alps. This goal is pursued through a multidisciplinary approach: geological mapping is integrated with the most modern photogrammetric, GIS (Geographic Information System) and 3D modeling technologies. The project is carried out in different work-stages: i) aerial photo-interpretation; ii) geological field-survey; iii) revision and integration with new data of the existent geological maps; iv) creation of three-dimensional model of marble ore. The photo-interpretation phase is carried out in 3D by means of ESRITM ArcGIS Pro 1.4 suite with the support of DTMs (Digital Terrain Models) and orthophotos at high spatial resolution (up to 5 cm ground pixel); then, through detailed geological mapping, critical data collected in the previous phase is verified. The integration of previous activities leads to the updating and correction of the currently available geological maps and leads to the production of serial geological cross-sections necessary for the creation of 3D models related to both surface and underground geology. Models have been built within Rhinoceros 5.0®code. Final aim of present work is the calculation of marble formation volumes in some defined areas, with a view to proper manage the resource, as well as to plan the mining activities
Geothematic regional geodatabases for the compilation of geological maps in areas of relevant interest: The Coltre of Marecchia Valley (PU), the Iglesiente region (CA) and the Stazzemese area (LU)
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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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