Ten Years of Participatory Cinema as a Form of Political Solidarity with Refugees in Italy. From ZaLab and Archivio Memorie Migranti to 4CaniperStrada

This paper introduces the context of European mobilizations for and against refugees and how participatory cinema has become a way of expressing political solidarity with refugees in Italy. We present and discuss ten years of the artistic work of ZaLab and Archivio Memorie Migranti and focus on two film projects of 4CaniperStrada. Central to the production of participatory cinema in Italy is challenging the mainstream narrative of migration through the proactive involvement of asylum seekers, with their political subjectivity, by using a self-narrative metho

Architettura sacra mediobizantina dal Monte Athos (Grecia), il caso di Ravdouchos

Riassunto: La penisola di Athos, compresa nella regione della Grecia chiamata Calcidica, è da oltre un millennio custode di una tradizione monastica autoctona fondata sull’eremitismo ed evolutasi nei secoli fino alla costituzione di una vera e propria Repubblica, incentrata sulla sovranità di venti sacri monasteri e attualmente subordinata allo Stato Ellenico. La protezione offerta dall’Impero Bizantino nei secoli, il ruolo di santuario della Chiesa cristiana Ortodossa e le strette norme che attualmente regolano l’afflusso dei pellegrini hanno reso possibile la tutela del patrimonio storico, artistico ed archeologico di Athos, dall’età classica fino ai giorni nostri. In questo intervento si fornisce una descrizione di Ravdouchos, centro di ridotte dimensioni riferibile a una fondazione monastica di minore entità ed ascrivibile all’età mediobizantina (secc. VIII - XIII).Parole chiave: Monte Athos Ravdouchou Ravdouchos KellionAbstract: The peninsula of Athos, administrately belonging to Halkidiki Prefecture (Greece), had preserved for over a millennium an autochthonous monastic tradition, settled on eremitic shape and then developed by centuries until the constitution of a Monastic Republic. A rich list of architectural, artistic, archaeological and historical evidences were preserved during Athos’ existence by protection offered by Byzantine Emperors and the role of Athos itself as the main sanctuary of the Christian Orthodox Church. In this article Marco Muresu provides to give a description of an example of middle-byzantine building, its art and architecture.Keywords: Mount Athos Ravdoucho

Il castrum di Sant’Antioco (Carbonia-Iglesias). Riflessione alla luce di alcuni documenti

Nell’ambito degli studi sull’archeologia bizantina in Sardegna il castrum di Sant’Antioco risente di una complessiva man­canza di dati, storici e archeologici. A parte le informazioni scaturite dagli studi effettuati da Vittorio Angius e dal rilievo del Della Marmora nel XIX secolo, si sa ben poco sulla struttura difensiva antiochese, demolita nel 1927 per far spazio all’attuale Campo Sportivo della città di Sant’Antioco. I questo lavoro si intende fornire nuovi spunti di riflessione riguardo alla planimetria del com­plesso, tramite l’analisi comparata di alcuni esemplari cartografici custoditi presso l’Archivio di Stato di Cagliari ed aventi come soggetto il castrum ed il territorio ad esso limitrofo.About Byzantine archaeology in Sardinia the Sant’Antioco’s castrum reflects a total lack of data, both historical and ar­chaeologycal. Apart from the informations revealed by studies conducted by Vittorio Angius and designed by Della Marmora in the XIX century, little is known about antiochese defensive structure, demolished in 1927 to make way for the current Field Sports of Sant’Antioco’s village. This article gives new insights regarding the layout of the complex, through comparative analysis of some cartographic specimens kept at the State Archives of Cagliari which represents the castrum and nearer territories.   

I Vandali: isolazionismo integralista o logica imprenditoriale? Riflessioni sul Mediterraneo di V-VI secolo

The paper aims to focus some of the main features of the economic management of the Vandal Kingdom, from Africa to Sardinia. By beginning from the awareness of the modern historians to reconsider the Vandals peculiarities, and the interpretation of the ancient sources not damaged by a compromised historical perspective, the paper tries to enlight the business implications of the political economy pursued by the Vandals, from their aggressive maritime policy to the role of coinage and products like the African Red Slip Wares and the amphorae in their trade system.Il contributo affronta alcune tra le principali peculiarità della gestione economica e commerciale del Regno Vandalo, dalle sue prime forme di dominio in Africa fino alle sue più importanti testimonianze in Sardegna. Partendo dalla consapevolezza, da parte della storiografia contemporanea, di aver rivalutato le potenzialità e le caratteristiche dei Vandali, secondo un’ottica non inficiata dalla parzialità delle fonti storiche antiche, si cerca di porre l’accento sui connotati imprenditoriali dell’economia del regno vandalo, dalla sua politica marittima al cospicuo flusso commerciale connotato dalla circolazione di prodotti quali le ceramiche sigillate e le anfore, fino all’ampia diffusione della circolazione monetaria

Nodule-associated microbiome diversity in wild populations of Sulla coronaria reveals clues on the relative importance of culturable rhizobial symbionts and co-infecting endophytes

Abstract The culturable bacteria from root nodules of Sulla coronaria growing in spontaneous conditions in Sardinia were characterized. This plant's peculiarity is to represent a legume still found in both wild and cropped statuses. We tested whether culturable bacteria would differ from those commonly isolated from its field-cropped varieties, to date exclusively represented by Rhizobium sullae. 63 isolates from 60 surface-sterilized nodules were analyzed by ARDRA and 16S rDNA sequencing. The official nitrogen-fixing symbiont Rhizobium sullae was found only in 25 nodules out of 60. The remaining nodules did not yield culturable rhizobia but a number of different endophytic genera including Pseudomonas sp. (17 nodules), Microbacterium sp. (15 nodules), Pantoea agglomerans (5 nodules). The situation appears therefore a hybrid between what is commonly observed in other Mediterranean legumes occurring only in wild status (featuring non-culturable rhizobia and arrays of culturable endophytes within nodules), as opposed to cropped legumes (endowed with fully culturable rhizobia and minimal endophytic occurrence). These findings, within a species bridging the ecology between native and cropped conditions, suggest insights on the relative importance of endophytic co-occupancy vs. true N-fixing symbiont culturability within nodules. The latter trait thus appears to accompany the domestication path of plants with a main trade-off of renouncing to interactions with a diversity of endophytic co-invaders; the relationships with those being critical in the non-cropped status. In fact, endophytes are known to promote plant growth in harsh conditions, which can be particularly stressful in the Mediterranean due to drought, highly calcareous soils, and pathogens outbreaks

Dati statistici sulla pubblicazione dei reperti postclassici nella edizione delle indagini archeologiche sulla civiltà nuragica

Riassunto: Il seguente elaborato costituisce il risultato iniziale di una ricerca condotta attraverso la consultazione di pubblicazioni di ambito storico e archeologico su un campione di oltre centosessanta siti databili all'età nuragica ed accomunati dalla presenza di testimonianze materiali attribuibili al periodo postclassico, relativamente ad una o più fasi di riutilizzo. I testi consultati durante l’attività di ricerca hanno interessato indagini archeologiche e raccolte di superficie svoltesi su tutto il territorio della Sardegna; è stato preso in esame oltre un secolo di pubblicazioni, dalle prime relazioni di scavo di fine Ottocento fino ai testi più recenti. Abstract: The following paper tries to structure a first result of a research based on nuragic buildings and complexes whom were reused from late antiquity to postmedieval centuries, by an analysis of informations published on archaeological and historical essays and papers, from late XIX Century to the present day

Monitoring on chemical and biological pollutants in sea waters of central-northern Sardinia

Introduction. The aims of this study are to assess the quality of the coastal waters of central-northern Sardinia through data from a monitoring network and to outline maps and experimental models of environmental risk correlated to the presence of chemical and microbiological contaminants. The area studied is the coast between Capo Falcone and the mouth of the river Coghinas, in the northwestern part of the island. Methods. In a first phase, 7 sampling stations of sea water and 1sampling station of bivalve molluscs (Mytilus galloprovincialis Lam.) wereidentified. For each transept 3 different collection points at respectively 500, 1000, and 3000 meters from the coast for a total 21 sampling sites were identified. In a second phase, another 7 transepts wereidentified, 2 of which on the island of Asinara. Results. As regards the microbiological monitoring of the sea water, very low concentrations of Total coliforms, Faecal coliforms and Faecal Streptococci were found and no Salmonella were isolated. Chemical analysis of the waters showed a high constant presence of phenols. In the bivalves we found rather high concentrations of Faecal coliforms without any clear seasonal variation, while no Salmonella was isolated in any of the examined samples. Discussion. The results show that the considered area is not affected by serious pollution processes, thus allowing to express a completely satisfactory judgement on its state of health. However, anthropic pressure in the considered territory is testified by the presence in the water of high concentrations of phenols. Conclusions. The results point out to the necessity of targeted and rational preventive action by means of control and protection measures for environmental ecosytems

Prefazione

Riassunto: Prefazione al volume DAEDALEIA. LE TORRI NURAGICHE OLTRE LʼETÀ DEL BRONZO. Atti del Convegno di Studi (Cagliari, Cittadella dei Musei, 19-21 aprile 2012

Pangenomics of the Symbiotic Rhizobiales. Core and Accessory Functions Across a Group Endowed with High Levels of Genomic Plasticity

Pangenome analyses reveal major clues on evolutionary instances and critical genome core conservation. The order Rhizobiales encompasses several families with rather disparate ecological attitudes. Among them, Rhizobiaceae, Bradyrhizobiaceae, Phyllobacteriacreae and Xanthobacteriaceae, include members proficient in mutualistic symbioses with plants based on the bacterial conversion of N2 into ammonia (nitrogen-fixation). The pangenome of 12 nitrogen-fixing plant symbionts of the Rhizobiales was analyzed yielding total 37,364 loci, with a core genome constituting 700 genes. The percentage of core genes averaged 10.2% over single genomes, and between 5% to 7% were found to be plasmid-associated. The comparison between a representative reference genome and the core genome subset, showed the core genome highly enriched in genes for macromolecule metabolism, ribosomal constituents and overall translation machinery, while membrane/periplasm-associated genes, and transport domains resulted under-represented. The analysis of protein functions revealed that between 1.7% and 4.9% of core proteins could putatively have different functions.This work was supported in part by grant “Progetto di Ateneo PRAT CPDA154841/15” from the University of Padova