Search results for " CERAMIC"

Profilo dell'attività scientifica di Fabiola Ardizzone

2018

Si ripercorre l'attività scientifica della compianta Collega Fabiola Ardizzone, dai suoi esordi come allieva della Cattedra di Archeologia Cristiana dell'Università di Palermo, all'attività di insegnamento e di ricerca sul campo in qualità di Professore Associato. Il contributo dato da Fabiola Ardizzone agli studi sulla Tarda Antichità e sul Medioevo siciliani hanno riguardato molteplici direttrici di ricerca: dall'identificazione di nuove classi ceramiche alle modalità di organizzazione delle aree funerarie, dai problemi di topografia urbana all'archeologia dei cimiteri e ai problemi della produzione e circolazione delle produzioni ceramiche. The paper traces the scientific activity of Fab…

I cinque crateri

2015

Il contributo illustra i cinque crateri al Museo Archeologico Regionale ‘A. Salinas’ di Palermo, scoperti ad Agrigento nel 1841, offrendo un quadro di sintesi sui vari aspetti stilistici, iconografici e funzionali di questi preziosi vasi. Ci si sofferma in particolare sulla tipologia del rito funerario, di cui i suddetti crateri-cinerari sono espressione ricostruendo il possibile rapporto tra la loro funzione e le immagine e i miti che li decorano.

L’ipogeo P e le dinamiche insediative nel settore meridionale della città tra la tarda antichità ed il medioevo

2013

Si inquadra il progetto dell'ipogeo nel contesto delle trasformazioni subite dal settore meridionale della città di Agrigento nella tarda antichità. Si analizza quindi la la nuova funzione svolta dello stesso ipogeo in età medievale.

Agrigento. L’ipogeo P nella necropoli paleocristiana della Valle dei Templi. Ricerche 2005-2012

2013

Si presentano i risultati dello scavo e degli studi condotti su l'ipogeo P di Agrigento. Si tratta dell'unico ipogeo paleocristiano interamente indagato e studiato nell'ambito della collaborazione tra Università degli studi di Palermo e Parco archeologico e paesaggistico della Valle dei Templi. L'ipogeo ha avuto una lunga utilizzazione a scopo funerario dal Iv a tutto il VII secolo; quindi rientra nel processo di abbandono e distruzione del cimitero cristiano e di rifunzionalizzazione di alcuni spazi dello stesso per l'impianto di una officina ceramica medievale.

Thermo-responsive hydrogels from cellulose-based polyelectrolytes and catanionic vesicles for biomedical application.

2016

In this study, negatively charged catanionic vesicles/hydrophobically modified hydroxyethylcellulose polymers thermo-responsive hydrogels have been fabricated. Vesicular aggregates were found to act as multifunctional junctions for networking of modified-cellulose water solutions. The contributions of the electrostatic and hydrophobic interactions were evaluated by changing either vesicles composition or the polymer hydrophobic substitution. Thermal-induced size and lamellarity of hydrogel-enclosed vesicles were detected, with further polygonal shape changes induced by cellulose-based polymer addition. The thermal transition was also found to tune hydrogel mechanical behaviour. The network …

Microporous alumina membranes electrochemically grown

2003

Abstract The electrochemical fabrication of alumina membranes by anodizing of aluminium in phosphoric acid and oxalic acid solutions, in the temperature interval from −1 to 16 °C, was investigated in order to study the influence of different parameters (initial treatment of aluminium surface, nature and composition of electrolyte, temperature) on the final characteristics of the membranes. Porous layers were grown using a linear potential scan at 0.2 V s −1 up to 160 V in H 3 PO 4 solution and 70 V in oxalic acid solution. The efficiency of porous layer formation was calculated by using Faraday's law and weight measurements. Pore size distribution and porosity of membranes prepared in 0.4 M…

Les dynamiques de l’Islamisation en Méditerranée centrale et en Sicile: nouvelles propositions et découvertes réecentes. Le diamiche dell’islamizzazi…

2014

The indigenous settlement of Monte Iato (western Sicily): an ethnoarchaeometric approach for outlining local Archaic ceramic productions

2021

AbstractAn ethnoarchaeometric approach has been followed to identify the textural and compositional characteristics of the ceramic pastes produced in ancient Iaitas/Ietas, an indigenous site located in western Sicily on Monte Iato, a few tens of kilometres from Palermo. This approach was primarily motivated by the lack of discovered Archaic kilns or production sites/workshops and the inability to identify reference groups. Raw clays were sampled in the territory of San Cipirello and San Giuseppe Iato (today’s municipalities both sited on the northern slopes of Monte Iato), together with representative historic tiles and bricks locally produced until fairly recently. Grain-size analysis and …

Exploring automatic grouping procedures in ceramic petrology

2004

Although a small number of studies have attempted to introduce automatic grouping procedures into thin section petrography of archaeological ceramics, the majority of studies continue to be carried out by non-automatic means. Although such an approach with the single observer grouping samples has a number of advantages, it is problematic when dealing with large numbers of samples. This paper aims to explore different coding systems and statistical analyses for grouping ceramic thin sections. In the example discussed a number of variables are defined, codified and analysed by correspondence analysis, classical multidimensional scaling, non-metric isotonic multidimensional scaling and Sammon …

Different methods for soluble salt removal tested on late-Roman cooking ware from a submarine excavation at the island of Pantelleria (Sicily, Italy)

2014

Abstract This paper deals with the comparative evaluation of different procedures of salt extraction designed for archaeological ceramics from submarine burial environments. The experimental work was carried out on a particular type of late-Roman cooking ware finds (Pantellerian ware) found in a shipwreck near the shoreline of the Island of Pantelleria (Sicily). The studied ceramic test-pieces were first recognised in terms of bulk characteristics (mineralogy, petrography and chemistry). SEM-EDS observation allowed verification of the presence of various secondary minerals at the surface and in the pore spaces formed after the prolonged permanence in seawater under oxidising or reducing con…