Search results for "restoration"
showing 10 items of 584 documents
Alcuni esempi di catalogazione e restauro nell’ambito della Collezione Storica degli Strumenti di Fisica dell’Università di Palermo
2015
In questo articolo presenteremo e discuteremo della catalogazione e restauro e di alcuni strumenti scientifici di particolare interesse storico-didattico appartenenti alla Collezione Storica degli Strumenti di Fisica dell’Università di Palermo. La catalogazione è stata effettuata secondo le indicazioni fornite dell’Istituto Centrale per il Catalogo e la Documentazione, per mezzo della scheda per il patrimonio scientifico-tecnologico. Nell’articolo saranno discussi gli aspetti tecnici degli interventi di restauro effettuati e saranno indicate le linee guida generali per il proseguimento dell’attività avviata. The article deals with the cataloguing and restoration of some scientific instrumen…
Combining spatial prioritization and expert knowledge facilitates effectiveness of large-scale mire protection process in Finland
2020
Conservation resource allocation involves a complex set of considerations including species, habitats, connectivity, local to global biodiversity objectives, alternative protection and restoration actions, while requiring cost-efficiency and effective implementation. We present a national scale spatial conservation prioritization analysis for complementing the network of protected mires in Finland. We show how spatial prioritization coupled with regional targets and expert knowledge can facilitate structured decision-making. In our application, discussion between experts was structured around the prioritization model enabling integration of quantitative analysis with expert knowledge. The u…
Modelli e approcci innovativi di restauro urbano e architettonico
2016
The essay proposes a contribution, from within the discipline of restoration, but at the same time open to interdisciplinarity, on operations in new territorial areas - peripheries, degraded centers. Restoration has the possibility of influencing them, nurturing new perspectives based on an ethical dimension, aimed at safeguarding - in the processes of regeneration - values such as the promotion of the person, the cultural dimension of development, the quality of life. The reflection engages on two concrete experiences of research and third mission operated on the Palermo outskirts of Brancaccio and on the town of Favara, in the province of Agrigento.
Clinical Behavior of Ceramic, Hybrid and Composite Onlays. A Systematic Review and Meta-Analysis
2020
A systematic review and meta-analysis was performed to analyze the survival of onlay restorations in the posterior region, their clinical behavior according to the material used (ceramic reinforced with lithium disilicate, conventional feldspathic ceramic or reinforced with leucite; hybrid materials and composite), possible complications, and the factors influencing restoration success. The systematic review was based on the preferred reporting items for systematic reviews and meta-analyses (PRISMA) statement, without publication date or language restrictions. An electronic search was made in the PubMed, Scopus, Embase, and Cochrane databases. After discarding duplicate publications and stu…
Application of Periodic Frames to Image Restoration
2014
In this chapter, we present examples of image restoration using periodic frames. Images to be restored were degraded by blurring, aggravated by random noise and random loss of significant number of pixels. The images are transformed by periodic frames designed in Sects. 17.2 and 17.4, which are extended to the 2D setting in a standard tensor product way. In the presented experiments, performances of different tight and semi-tight frames are compared between each other in identical conditions.
Uncertainty analysis and symmetry restoration in nuclear self-consistent methods
2015
This thesis contains two articles, in the following denoted by I and II, and an introduction to them. In Chapter 1, I present the theoretical models of nuclear structure. In Chapter 2, I introduce the basic ideas about the density functional theory (DFT) and self-consistent mean-field (SCMF) calculations. In Chapter 3, I give the formulae for the uncertainty propagation, which is the error analysis method used in article I. As a proper tool to survey the predictive power of theoretical models, the error analysis now has become more and more widely used. By analyzing the propagation of uncertainties, one tries to find out the e ectiveness of the calculation with a given parameter set obtaine…
Huoli kuvasta : merkitys, mieli, materiaalisuus
2017
This research is a hybrid of a monograph and a multiple-article dissertation. Its theoretical starting point is a phenomenologically based view of the being of the image, in which Georges Didi-Huberman´s work plays a central role. For him, as well as for Mieke Bal, a historical work of art is never only in the distant past only but also exists in the present actuality. This makes the temporality of the Image extremely complex. The Image can be encountered only “pre-posterously” (Bal) or by reading it “against the grain” (Didi-Huberman). The Image is necessarily anachronistic; it is not in time but opens up time. This fact should be taken into account not only in art history, but also in art…
Progetto di restauro, per la fruizione e la valorizzazione della chiesa di Santa Maria in Valverde
2021
The essay presents the methodological process used for the analysis of the state of conservation and of the accessibility problems present in the church of Santa Maria in Valverde in Palermo, built in the 17th century. XVII, above previous stratifications. Furthermore, the essay shows a proposal for restoration and accessibility to the same church which in the past had a churchyard that was eliminated after the mid-twentieth century to connect the street levels. The research was conducted within the Restoration and Theory and History of Restoration Laboratory and involved the students of the LM4 course in Architecture of the Palermo Department. The suggested solution was to rebuild a new ch…
Peri-Implant Behavior of Tissue Level Dental Implants with a Convergent Neck
2021
Introduction: The aim of this retrospective study was to analyze the radiographic peri-implant bone loss of bone level implants and tissue level implants with a convergent neck in screw-retained single crowns and in screw-retained fixed partial prostheses, after two years of functional loading. Materials and methods: The sample was divided into two groups according to their type: Group I: supracrestal implants with convergent transmucosal neck
From ambient to preserve the cold at ambient to preserve and to exhibit contemporary art: the "pit of snow" of villa Cattolica (SIcily) - Da ambiente…
2013
Sino a quando non sono stati inventati i moderni sistemi di refrigerazione, il compito di mantenere temperature basse era demandato a speciali architetture. Nel Meridione d’Italia e in particolare in Sicilia detto compito era affidato alla “fossa della neve”. In generale trattasi di un ambiente ipogeo nel quale veniva conservata la neve, per essere, nella sua maggiore quantità, utilizzata, nella tarda primavera e nella torrida stagione estiva, per la produzione di gelati e bevande fresche. Nella città di Palermo e nelle sue campagne circostanti non vi era palazzo, convento o villa che non possedeva una “fossa della neve”. Infatti numerosi sono i documenti di archivio che ci informano sulla …