Search results for " Stones"
showing 10 items of 44 documents
NDT for the detection and characterization of superficial treatments on stone material from archaeological sites of Merida (Spain)
2014
L'intonaco Li Vigni nell'architettura del XX secolo a Palermo. Nuove conoscenze e applicazioni diagnostiche per la manutenzione
2013
Il saggio presenta lo studio degli intonaci formulati per imitare le pietre e i marmi naturali che si diffondono in Sicilia all’inizio del XX secolo ed evidenzia che le prime applicazioni e la diffusione delle nuove malte, anche nel resto dell’Italia, risentono delle sperimentazioni condotte in tutta l’Europa. Il contributo riassume i risultati di una rigorosa e capillare ricognizione tra i brevetti conservati presso l’Archivio Centrale dello Stato a Roma inerenti alle malte per il confezionamento dell’intonaco a “finta pietra”, ne analizza i contenuti in modo critico e pone in risalto i contatti culturali con le sperimentazioni dei materiali in atto nell’ambito dei grandi cantieri di resta…
Trans-Abdominal Ultrasound Guided ERC in a Pregnant Woman With Bile Duct Stones
2014
Background: The change in lithogenicity of bile, increased stasis of bile and decreased gall bladder emptying are the possible reasons for an increased risk of gall stones during pregnancy. However, biliary interventions during pregnancy are associated with risks to both the pregnancy and developing fetus. ERC under fluoroscopic control as gold standard is associated with higher risk of premature labor and teratogenity. Methods and patient: We performed transabdominal ultra-sound guided ERC in one patient in the second trimenon with gall stones. While the hilus area is observed by ultrasound, the papilla is carefully cannulated with a guidewire. A contrast agent is applied in the common bil…
Isolation From Human Calcium Oxalate Renal Stones of Nephrocalcin, a Glycoprotein Inhibitor of Calcium Oxalate Crystal Growth. Evidence That Nephroca…
1987
We have determined that the organic matrix of calcium oxalate kidney stones contains a glycoprotein inhibitor ofcalcium oxalate crystal growth (nephrocalcin) that resembles nephrocalcin present in the urine of patients with calcium oxalate stones and differs from nephrocalcin from the urine of normal people. Pulverized calcium oxalate renal stones were extracted with 0.05M EDTA, pH 8.0; nephrocalcin eluted in five peaks using DEAE-cellulose column chromatography, and each peak was further resolved by Sephacryl S-200 column chromatography. Four ofthe fiveDEAE peaks corresponded to those usually found in nephrocalcin from urine; the fifth eluted at a lower ionic strength than any found in uri…
Effectiveness of Preservative Treatments on Coloured Ruditic Building Stones
2009
: The dark grey Breccia di Billiemi and the Ammonitico Rosso of Piana degli Albanesi, two coloured stones widely used in monuments both outdoor and indoor in Sicily, undergo significant decay as effect of weathering: colour change and development of surface microcracks which affect not only the chromatic aspect but also the state of aggregation. In a previous study (Fracture and Failure of Natural Building Stones, 2006, Springer, Dordrecht, The Netherlands: 329), such effects were successfully reproduced on laboratory samples by means of artificial accelerated weathering and the different response of veins and grains to the ageing agents was related to the microstructure of stones. In this…
De Bibracte à Augustodunum : permanences et évolutions des activités manufacturières de l’époque gauloise à la fin du Haut-Empire
2007
L’importance de l’artisanat autunois et son développement jusqu’au iiie siècle prennent racine à Bibracte qui a su exploiter les ressources naturelles de son environnement et parfaire un savoir-faire local ayant survécu à la conquête. Les recherches sur ces activités manufacturières menées conjointement à Bibracte et à Autun nous offrent ainsi une opportunité d’étudier ces problématiques sur la durée. À Bibracte, puis à Autun, les artisans du métal sont omniprésents, mais d’autres métiers, aux témoins plus discrets, ont pu aussi êtres identifiés. Dans le cadre de cet article, nous présentons succinctement les lieux de production et un bilan des différents corps de métier. Enfin, nous évoquo…
Biedermeierowskie świadectwo zarazy - "Granit" Adalberta Stiftera
2021
The following article is an introduction to the Adalbert Stifter’s short story entitled Granite in Polish translation. The article explains the political and cultural origin of the work, its poetical form, its ethical and philosophical meaning. The Granite, included in the short story collection (Colorful Stones, 1853) is considered to be an important declaration of Biedermeier movement in Austria, its aesthetic as well as its ethic tradition, manifest of which was so-called „Gentle Law” (das sanfte Gesetz), i.e. an ordered existence harmony and an unspectacular, daily practising the humanism in the personal, country and social life. In Stifter’s piece it concerns also an extraordinary case…
The discovery of a Mycenaean-type tholos tomb in the Bronze Age necropolis of the Gazzi buried floodplain (Messina, Southern Italy): new geological a…
2019
This paper deals with a monument that is, up to this date, unique in Sicily and in the Italian peninsula: the Mycenaean-type tholos tomb of the Gazzi necropolis in Messina. A recent excavation in the alluvial deposits revealed extensive traces of a funerary area with a tholos tomb and several enchytrismos tombs with skeletal remains, presumably dated back to the end of the Early or the initial stage of the Middle(?) Bronze Age. The present multi-disciplinary investigation has been developed to analyse new data related to sediments, building stones and skeletal remains of this funerary area. The stratigraphic succession hosting the necropolis was formed by overbank sediments deposited on the…
Administration of Second-Generation Extracorporeal Shock Waves without Waterbath for Fragmentation of Extra- and Intrahepatic Bile Duct Stones
1990
First-generation extracorporeal shock-wave sources disintegrate 97% of kidney stones [1, 2]. Recently, in selected patients gallbladder and common bile duct stones were also treated. The technique available so far, however, requires immersion of the patient’s body in a tank of degassed water. The procedure is therefore inconvenient, time consuming, and relatively expensive. The high pressure of shocks (up to 1000 bar) generated by underwater spark discharge causes pain, and general anesthesia is necessary in most patients [3, 4].
Intraoperative cholangiography during cholecystectomy using a biliary-nose tube: Routinely used in patients with main bile duct stones
2021
Background: Nowadays, the “gold standard” treatment for gallbladder stones is laparoscopic cholecystectomy but the risk of iatrogenic biliary duct injuries is increased compared to “open” surgery. Intraoperative cholangiography (IOC) can be useful to avoid biliary injuries but it can also be a no-safe procedure in center in which it is not routinely performed. Aim and objective: The aim of our study is to trust the efficacy of IOC in a patient with common bile duct (CBD) and gallbladder stones using a biliary-nose tube. Materials and methods: 135 patients with gallbladder and CBD stones were treated with sequential therapy and randomly divided into two groups. Laparoscopic cholecystectomy w…