1,720,975 research outputs found
ITALIA - Geologia in rilievo (scala 1.1.250.000)
No full textSi tratta di un prodotto cartografico di sintesi dell'intero territorio italiano, comprensivo di Corsica ed Alpi estere (scala 1:1.250.000; dimensioni 120 x 85 cm), realizzato su supporto plastico tridimensionale. Ai dati di superficie si aggiungono gli elementi tettonici sommersi dei mari italiani. Il prodotto, necessariamente di sintesi, si basa sui più recenti dati cartografici di dettaglio del territorio italiano e alpino (estero) e si rivolge non solo ai geologi, quanto e soprattutto alle scuole secondarie inferiori e superiori e al vasto pubblico degli appassionati. La sua funzione didattico-divulgativa è assicurata dalle legende stratigrafica e tettonica, innovative nel loro genere, ed entrambe strutturate in modo autoreferenziale.
La prima, attraverso un semplice confronto grafico, comunica l’età delle singole successioni rocciose e ne raffigura i contesti genetico-ambientali di produzione e sviluppo (in totale 21 macrounità: 11 sedimentarie, 7 magmatiche e 3 metamorfiche). La seconda, sempre tramite block diagrammi, visualizza i vari significati dei simboli di deformazione fragile (faglie) usati per i territori alpini, appenninici e nei fondali marini.
Il presente plastico geologico, denominato ITALIA - Geologia in rilievo, è il risultato di una sinergia tra le istituzioni statali (Dipartimento di Scienze Biologiche, Geologiche e Ambientali dell’Università degli Studi di Bologna, Servizio Geologico d’Italia - ISPRA; curatori scientifici: C. Venturini e M. Pantaloni) e la Global Map – S.EL.CA., società leader nel settore della cartografia tematica, tradizionale ed in rilievo (sono attualmente in fase di avanzata realizzazione, i plastici geologici di varie Regioni italiane). Ad esso si aggiunge la versione cartacea (scala 1:1.250.000) e quella stampata su tywek (scala 1.1.000.000)
Il Foglio 280 – Fossombrone 3D: un progetto pilota per la cartografia geologica nazionale in tre dimensioni
No full textUnderstanding the geometry of structures and relationships among stratigraphic and tectonic units at the depth is one of the main challenges faced by geologists. This aim is traditionally pursued through interpreting geological and geophysical data in one or two dimensions (logs of deep wells, stratigraphic columns, cross-sections, structural maps) and performing structural analysis (cut-off lines maps, branch lines maps, restoration and balancing of crosssections). The recent development of software devoted to geological modelling in three-dimensions represents a significant resource for geologists for reconstructing and visualizing geological bodies at depth (SLAT et alii, 1996; DE DONATIS, 2001). Geological models in three-dimensions integrate different kinds of data (cross-sections, seismic profiles, logs of deep wells) more easily than traditional techniques and allow a more coherent and exhaustive representation of the reality. Furthermore, progressive insertion of data in the model makes the geologist able to verify step by step the quality of his previous interpretations and to reach better results through iterative corrections. The aim of this prototype study project is to define and test a methodology for building three-dimensional geological models based on maps on the scale of 1:50000, from the new Italian geological mapping program. Another target of this work is to test the suitability of the national geological data base for 3D reconstruction purpose (DE DONATIS et alii, 2002). The recently developed three-dimensional visualization technique is used to build a structural model of sheet 280-Fossombrone, an external area of northern Apennines, central Italy. This area is characterized by faulted anticlines and broad synclines, involving a Triassic-Paleogene succession that is detached from the underlying basement. The exhaustive knowledge of the regional and local geology together whith the availability of subsurface (well and seismic) data makes this area a good test to define a methodology for building a 3D geological map. This model has been built in two main steps. In the first step, a 2.5 dimensional geological model has been built using a digital elevation model and the new geological map of the study area at the scale of 1:50000. This 2.5 model better shows the relationships among topography, geology and main structures better than traditional 2D geological maps. During the second phase a deep model was built, integrating a large amount of sub-surface data, as commercial seismic profiles (arising from hydrocarbon explorations made by Eni - div. Agip during past decades) and deep well logs, with field data resulting from the recent mapping project. The whole 3D geological model of Sheet 280-Fossombrone allowed a better understanding of the geometry of the deep structures and the kinematics of this external part of northern Apennines. Structural and geomorphological analysis are performed on the model to improve the knowledge of several aspects of the study area
AN ALTERNATIVE PROCEDURE FOR ESR IDENTIFICATION OF IRRADIATED CHICKEN DRUMSTICKS
No full textThe ESR spectroscopy is, at present, the most established technique for quantitative analysis of irradiated chicken bone using the additive dose method. In this paper we tried a different approach to the problem analyzing the ESR behavior of a batch of chicken bone samples coming randomly from the market. Using a suitable and standardized sample preparation technique and sample positioning in the microwave cavity, we obtained a coefficient of variation of about 30 % for the batch response. The calibration curve, obtained using the batch behavior up to 10 kGy, was used for a quantitative test on unknown samples
Carte geologiche come spartiti musicali. Dal solfeggio all’ascolto: come e quando Geological maps like musical scores. From solmization to listering: how and when
No full textContributo sulla didattica e la divulgazione
The purpose of the contribution is to help Earth sciences to become a more popular subject in high schools. This can be achieved by changing the teaching method in order to make it more appealing to students. The best way to do this is to consider changing from the traditional teaching method to a more innovative educational approach, both in the classroom as well as on the field. This can be achieved by using fascinating examples, giving a proper order to the information, finding suitable strategies and using peculiar tools
Carte geologiche come spartiti musicali. Dal solfeggio all’ascolto: come e quando
Full text linkContributo sulla didattica e la divulgazione
The purpose of the contribution is to help Earth sciences to become a more popular subject in high schools. This can be achieved by changing the teaching method in order to make it more appealing to students. The best way to do this is to consider changing from the traditional teaching method to a more innovative educational approach, both in the classroom as well as on the field. This can be achieved by using fascinating examples, giving a proper order to the information, finding suitable strategies and using peculiar tools
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
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