103,359 research outputs found
EDR e la Sardinia: stato dell’arte, varia lectio, casi particolari
No full textNell'articolo vengono presentati tutti gli aggiornamenti relativi all'edizione delle iscrizioni latine della Sardegna in relazione all'attività collegata al PRIN 2010-2011 dal titolo "Colonie e municipi dell’Italia romana nell’era digitale: fra storia locale e storia generale. L’apporto delle nuove tecnologie di archiviazione e gestione dei dati epigrafici allo studio delle città, intese come elemento fondante della civiltà romana” coordinato a livello nazionale dal prof. Gianfranco Paci dell’Università di Macerata" (responsabile UR, Univ. Cagliari, Antonio M. Corda
L'activité de fouille et les perspectives de recherche
No full textThis book summarise the aim and first originals results of 10 years of excavations on Uthina, managed by the italian-tunisian team (University of Cagliari and Institut National du Patrimoine di Tunisi). The activity has been involved researchers applied in different fields, working in a multidisciplinary approach. They wrote, during ten years of activity, 4 books and more than 50 articles concerning several topics (history, archaeometry, graphic representation of the excavation site, restoration protocols, identification of materials for consolidation of the mortar).
This text represents at the same time a summary and an introduction of over 400 pages in which researchers in different scientific fields, humanistic as well technical, published their studies
Lower Miocene Spongolitic facies in Ionian Islands (Greece) and their significance.
No full textThe Authors report spongolitic faciès of the Lower Miocene identified at kefaliinia and Ithaki and discuss the significance of these facies as well as of a diatomaceous épisode of the same age found at Zakynthos. The spongolitic or diatomaceous facies are referred to the volcanism which extended over the entire Mediterranean basin in the Lower Miocene but their occurence and distribution are related to local settings.
Spongolitic facies develop on areas wheré pelitic sediments are interbedded with calcareous clastic resediments derived from gravity flows, both in Ionian Islands and Spain and Central Apennines.
So their presence seems to be suitable for paleogeographic reconstruction, since they suggest the existence of slopes around carbonate platform edges with a high rate of production and reworking of calcareous clastic materials.Les Auteurs signalent des faciès spongolitiques du Miocène inférieur identifiés à Kefallinia et à Ithaki et examinent la signification de ces faciès ainsi que d'un épisode à diatomées du même âge observé à Zakynthos. Les Auteurs attribuent les faciès spongolitiques ou à diatomées au volcanisme qui a intéressé l'ensemble du Bassin Méditerranéen au Miocène inférieur, mais rapportent leur présence et leur distribution à des situations locales,
Les faciès spongolitiques se trouvent dans des zones à sédiments pélitiques dans lesquels sont interposées des couches calcaires-clastiques résédimentées par écoulements par gravité, tant dans les Iles Ioniennes qu'en Espagne et dans les Apennins centraux.
Leur présence prête donc à une reconstruction paléogéographique, puisqu'il suggèrent l'existence de pentes autour des marges de plateforme carbonatée avec un taux élevé de production et de remaniement de matériaux calcaires-clastiques.Civitelli G., Corda L., Mariotti G. Lower Miocene spongolitic facies in Ionian Islands (Greece) and their significance. In: Géologie Méditerranéenne. Tome 14, numéro 4, 1987. pp. 245-253
Aldo Rossi and the Portuguese experience. Bairro Bela Vista, Casal das Figueiras: projects for the city
No full textIn 1976 José Charters Monteiro involved Rossi in the design of a building included in the Plan for Bairro Bela Vista in Setúbal. The intervention promoted by the Fundo de Fomento da Habitação (FFH) is part of a process that in Portugal has been crucial in the definition of a new approach to the solution of the housing problem. This approach inserts the topic of popular dwellings in the wider issue of city construction. In the same years Gonçalo Byrne realizes the housing project in Casal das Figueiras (1975). Conceived within the social development programs of the Serviço de Apoio Ambulatorio Local (SAAL), this intervention is paradigmatic of the search, carried out by the Portuguese architect, for the expression of an idea strongly related to the territory.
In the introduction to the portuguese edition of L’Architettura della città (1977) José Charters Monteiro states that the real consequences of Rossi’s considerations were not stylistic but conceptual, introducing a global vision of the city and architecture, as profound manifestations of human life. In this context is placed the attention that Rossi reserves to disciplinary fields external to architecture and which the author himself put in evidence in his introductory paper. The theories coming from the fields of geography and history contribute, in fact, to defining the character of design and the study of form, typical of architecture.
This research proposes a comparison in the light of the themes set out focusing on the relationship that, through the project, Rossi establishes with the territory and in particular with the city, identifying points in common and the divergencies with the geographical attitude that characterizes Portuguese architectural culture of the second half of the Twentieth Century.
In Setúbal Rossi designs a large residential building as part of the city and, more specifically, as an integral part of the district, confirming an architectural type linked to the evolving form and to the society to which it belongs. The design solution, deriving from a very precise model that Rossi previously had the opportunity to experiment in the project for the Gallaratese district, becomes a tool for the spatial-temporal investigation of the phenomena that generated it. Despite never actually being realised, Rossi’s project offers itself as an element of confirmation of the theories on the reading of the place fielded by the architect and as an element of comparison with the contemporary Portuguese experiences.
The investigation on the project for Setúbal takes place through the analysis of the documents kept in the archive of the Center Canadien d’Architecture and through the interviews taken with José Charters Monteiro and Gonçalo Byrne, aimed at shedding light on the development of Rossi’s proposal and on the relationship between architecture and geography as an important part of his theories and his works
Corda fidelis anime - Don Mus.Ms. 1269 : S, strings, org; G
No full textAntonio LottiQuelle: manuscript. - Provenienz: Fürstlich Fürstenbergische Hofbibliothek, DonaueschingenCanto Solo ex G | pro nat: D: N: J: Ch: | organo 2 VV alto v. | corda fidelis | [by later hand:] del Sig. Lotti | [org:] Pastorella del Signr Lotti | à Cant: 2 Violin. Viola Alt
Effects of antidepressants on the performance in the forced swim test of two psychogenetically selected lines of rats that differ in coping strategies to aversive conditions
No full textPsychopharmacology (Berl). 2010 Sep;211(4):403-14. Epub 2010 Jun 30.
Effects of antidepressants on the performance in the forced swim test of two
psychogenetically selected lines of rats that differ in coping strategies to
aversive conditions.
Piras G, Giorgi O, Corda MG.
Department of Toxicology, University of Cagliari, Via Ospedale 72, 09124,
Cagliari, Italy.
INTRODUCTION: The selective breeding of Roman low-avoidance (RLA) and
high-avoidance (RHA) rats for, respectively, poor versus rapid acquisition of
active avoidance in a shuttle-box has produced two phenotypes that differ
drastically in the reactivity to stressful stimuli: in tests used to assess
emotionality, RLA rats display passive ("reactive") coping and robust
hypothalamus-pituitary-adrenal (HPA) axis reactivity, whereas RHA rats show
proactive coping and blunted HPA axis responses. The behavioral and
neuroendocrine traits that distinguish these lines suggest that RLA rats may be
prone, whereas RHA rats may be resistant to develop depression-like behavior when
exposed to stressful experimental conditions.
OBJECTIVE AND METHODS: To evaluate the performance of the Roman lines in the
forced swim test, immobility, climbing, and swimming were assessed under baseline
conditions (i.e., pretest in naïve animals or test after the administration of
vehicle), and after subacute treatment with desipramine, fluoxetine, and
chlorimipramine.
RESULTS: Under baseline conditions, RLA rats displayed greater immobility and
fewer climbing counts than RHA rats. In RLA rats, desipramine, fluoxetine, and
chlorimipramine decreased immobility; moreover, desipramine and chlorimipramine
increased climbing, whereas fluoxetine increased swimming. In RHA rats, none of
these drugs affected immobility, swimming, or climbing.
CONCLUSIONS: RLA and RHA rats represent two divergent phenotypes respectively
susceptible and resistant to display depression-like behavior in the forced swim
test. Hence, comparative studies in these lines may help to develop novel working
hypotheses on the relationships among genotype, temperament traits, and neural
mechanisms underlying the vulnerability or resistance to stress-induced
depression in humans.
PMID: 20589496 [PubMed - indexed for MEDLINE
Application of Ultrasound in Detecting and Removing Migrating Grass Awns in Dogs and Cats: A Systematic Review
No full textMigrating grass awns are an important cause of disease in dogs and cats. Plant awns can migrate into several body tissues and cavities because of their fusiform shape and backward-pointing barbs. Their migration causes inflammatory tissue reaction and clinical signs depend upon their localization. Ultrasound has been described as a useful, noninvasive, and readily available tool to identify and guide vegetal foreign bodies removal in animals. The aim of this systematic review was to summarize current knowledge on the application of ultrasonography in the identification and removal of grass awns from various anatomic locations in dogs and cats. We selected and analyzed 46 papers on the application of ultrasonography in dogs and cats affected by migrating grass awns. The ultrasonographic appearance of grass awns is characteristic, although their size and location can influence the visualization and the attempt of removal. In some cases, migrating grass awns are not directly visualized by ultrasonography, but the lesions caused by their migration can be easily seen. Ultrasonography can be considered a useful diagnostic tool to localize and remove migrating grass awns; however, when the migration occurs in less accessible locations or discrete foreign bodies are present, this diagnostic tool should be considered as a part of a multidisciplinary approach with advanced diagnostic imaging modalities
Numerical Simulation of Advanced Bipolar Plates Materials for Hydrogen-Fueled PEM Fuel Cell
No full textHydrogen-fueled Proton Exchange Membrane Fuel
Cells (PEMFC) are considered one of the most prom-
ising technologies for a fully sustainable power
generation in the transportation sector, thanks to the direct
conversion of chemical-electrical energy, the absence of
harmful emissions, the optimal power density, and the allow-
able long-distance driving range. A current technological issue
preventing their large-scale industrialization is the thermal
management of PEMFC stacks, due to the absence of the heat
removal action operated by exhaust gases in internal combus-
tion engines, the low-temperature generated heat and the
limited exchange areas in mobile applications. A relevant role
in heat dissipation is played by bipolar plates, being the
components with the largest volume occupation and greatly
contributing to the PEMFC weight and cost. This motivated
the recent research on advanced materials for these
components, aiming at simultaneous elevated electrical and
thermal conductivity, reduced contact resistance, poor oxida-
tion tendency and low density.
In this study a fundamental multi-dimensional and
multi-physics 3D-CFD analysis is carried out to evaluate the
effect on the membrane physical/electrochemical status for
different types of bipolar plates, moving from conventional
graphite to advanced materials, including coated stainless
steel. A detailed analysis is carried out on the fuel cell thermal
management, rationalizing the heat dissipation pathways and
the membrane hydration balance for the considered cases.
The study relevantly shows the effects of advanced research
on bipolar plates materials on a cell-scale, filling a knowledge
gap between the fundamental research on bulk material prop-
erties for bipolar plates and the resulting PEMFC fluid/
thermal processes, thus providing guidelines for PEMFC
engineering advancement
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