124,583 research outputs found
From virtual tourism to real one and vice versa
No full textGeological tourism does not mean only geological formation outcrops, geomorphology of area, tectonic evidences, geosites, etc. but especially how the humans are related to territory where they live. In other words, in which way they take benefit from land resources, like soil fertility, healthy climate and natural resource facilities. Geological natural resource has a very wide meaning, from water, oil, to ore and rocks. Our attention will be focused to this last topic. Ornamental stones have combined well with the creative genius of our sculptors and architects who have fashioned great works of art for posterity (cathedrals, castles, city centers, statues etc). These monuments now provide an attraction for a massive tourism trade, especially for city with a long and important history like Rome.Some geological virtual tours inside few main cathedrals in Rome have been reconstructed. Using ITALITHOS data bank on ornamental rocks available in Internet ( www.italithos.uniroma3.it ) it is possible to surf inside monuments through architectonic elements (columns, capitals, altars etc.), rigorously natural stone made, and to discover their popular names, petrographic classification, provenience and geological settings, mineral assemblages, chemical composition, physical and mechanical characteristics, durability, weathering, workability, territorial spreading, open or closed quarries and references.The same web site can be used sighting monuments directly (real tourism) with the aid of a palm Internet linked by General Packet Radio Service (GPRS) platform or by bluetooth wireless technology, if the site is equipped. Italithos can be linked to similar web sites having as object the same monuments but complementary information like history, architecture, etc.Geological tourism will have great benefit from Internet because in that way it is possible to learn directly in “field” appreciating all details continuously upgraded. Beside tourists, the achievement of web sites like Italithos or similar should be encouraged, multiplied and linked among them because they can have many other potential users, like Institute for monumental care, Ministry of Culture, architects firms, consulting engineering companies, sculptors, national museum, building construction industry, quarry industry, Geological Institutes, etc
L'importanza delle fonti storiche nello studio delle rocce ornamentali d'interesse artistico. Il caso della Basilica di San Paolo fuori le Mura
No full textWALKING THROUGH DOWNTOWN ROMA. A DISCOVERY TOUR ON THE KEY ROLE OF GEOLOGY IN THE HISTORY AND URBAN DEVELOPMENT OF THE CITY
No full textThe Seven Hills: constitution, visible traces and geologic evidence: itinerary, profiles and observation points for the shape of the city of Roma and its history.
No full textGoing Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Walking downtown Roma. A discovery tour on the key role of geology in the history and the urban development of the City
No full textWalking through downtown Roma. A discovery tour on the key role of geology in history and urban development of the city
No full textDispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Properties and weathering of the stones used in the medioevale religious architecture in L'aquila (Italy).
No full textProperties and weathering of the stones used in the medioevale religious architecture in L'aquila (Italy).
No full textA great number of medieval religious buildings of remarkable historic and artistic significance are located in the city centre of L'Aquila. A so high-density of buildings arises economical and methodological difficulties on their conservation. Objective of the paper is to identify and to characterize the stones used in the medieval religious architecture and to evaluate their state of conservation .The stones have been characterised using several techniques both in situ and in laboratory (Fiber Optics Microscopy , "pipette method", LM, SEM-EDS, XRD, MIP, AAS, mechanical and ultrasonic tests).A methodology based on rock decay, water absorption and macroscopic description, have been tested for the classification of the stone typologies. For the identification of the old quarries, historic documents, regional geologic maps, aerial photos, as well as field inspections, have been adopted.The characteristics of the stone sampled in the ancient quarries have been compared with those obtained from monuments, both have been pointed out with the same methodologies above mentioned. The quarries are located around the city centre (10-15 kilometres)and several have been identified inside the urban perimeter. "White or reddish" limestone have been classified in ten groups. The white ones have mechanical resistances lower than reddish stones (50-60Mpa with respect to 100Mpa). On the contrary the compactness as well as the workability is very high.The workability depends on the characteristics of the lithotype and its geological history. The stone decay is greater for the reddish limestone. This is due to the presence of clay and iron minerals finely dispersed and how the stone have been located building the architectonic elements (ashlars, column, etc.). In fact the reddish stone, which is macroscopic layered, has been used,in order to obtain a homogenous colour, with the stratigraphic plans parallel to the loads.Many quoted old quarries have been identified and new ones have been discovered. It has been so possible to carried out those destructive analyses, or collect new samples, with the goal to obtain a new characterization of the stone properties. These data, as well as the study of the decay forms, allow to plan properly conservative works
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