Laser Scanner 3D per lo studio e la catalogazione dell’archeologia medievale: la chiesa di Santa Croce in Bergamo

The improvement of new active optical sensors has revolutionized the methods for documenting cultural heritage. The conservation and appreciation of our cultural legacy re¬quire an extensive documentation both in terms of shape, color and geometry as well as the more traditional art-historical features. The incessant development of scientific research today provides new possibilities and tools which are essential to know and use in a responsible and scientific way. In the field of archaeology, the automatic 3D survey is now recognized as an added value compared to traditional practices and the active contribution that this technology can provide to the interpretative phase, cataloguing and promotion of archaeological assets, even through the web, is becoming increasingly clear. On the other hand, even considering the speed of the procedure and the accuracy of measurement, there have been calls for reflection on the role that laser scanning can play in the field of archaeology; this role needs to be clarified and consolidated by conducting new studies and experiments, such as the one presented here that concerns the Church of Santa Croce in Bergamo, a small octagonal Romanesque chapel built in the first half of the 11th century

Acute Treatment with Renal Denervation in a Patient with Resistant Hypertension and Hemorrhagic Stroke

A 49-year-old man with refractory hypertension was admitted to our hospital in a coma caused by hemorrhagic stroke. Severe hypertension was observed during hospitalization despite a full antihypertensive therapy. Considering the risk of enlargement of the intracranial hematoma, the decision was made to perform renal denervation (RDN). A significant blood pressure reduction was obtained after RDN. The patient had a progressive improvement of general conditions and came out of the coma after a few days. This case underlines the safety and the feasibility of RDN in a critically ill patient

Update On The Code Intercomparison and Benchmark For Muon Fluence and Absorbed Dose Induced By An 18-GeV Electron Beam After Massive Iron Shielding

In 1974, Nelson, Kase and Svensson published an experimental investigation on muon shielding around SLAC high-energy electron accelerators. They measured muon fluence and absorbed dose induced by 14 and 18 GeV electron beams hitting a copper/water beamdump and attenuated in a thick steel shielding. In their paper, they compared the results with the theoretical models available at that time. In order to compare their experimental results with present model calculations, we use the modern transport Monte Carlo codes MARS15, FLUKA2011 and GEANT4 to model the experimental setup and run simulations. The results are then compared between the codes, and with the SLAC data.Comment: 14 pp. Presented paper at the 13th Meeting of the task-force on Shielding aspects of Accelerators, Targets and Irradiation Facilities (SATIF-13), HZDR, October 10-12, 2016, Dresden, Germany. arXiv admin note: substantial text overlap with arXiv:1502.0168

Paclitaxel in endovascular devices. Identikit of a “serial killer”?

Recent developments in the management of peripheral artery disease have been momentous, and a key advance has been the introduction of drug-coated balloons, which capitalise on the mechanical effects of angioplasty balloons, and on the pharmacologic effects of anti-restenotic drugs [1,2]. Indeed, single reports from randomized trials and pooled estimates from meta-analyses have clearly showed that paclitaxel-coated balloons reduce the risk of restenosis and repeat revascularization, while improving patency, limb salvage, and freedom from claudication

Studies for the Conservation and Valorisation of the Archaeological Rock Heritage of Calascibetta in Sicily, Italy

Abstract. The rock settlement of Vallone Canalotto, which stands in the valleys surrounding the town of Calascibetta – about three kilometres north from Enna, Sicily, Italy – testify to a widespread population of the area from prehistoric times up to the Middle Ages, probably linked to the agricultural and pastoral exploitation of its fertile land. This valuable heritage, dug into very soft limestone banks, is now threatened by significant erosion and disruption phenomena, which, in the absence of adequate safeguarding and maintenance actions, will lead to a progressive loss of material and the consequent collapse of some portions, making the documentable traces more and more paltry. The archaeological complex demonstrates the continuity of the funerary use from the remotest ages to the early Christian era, as testified by the excavation of rupestrian columbaria. In the early medieval period, small rural communities used the hypogeal structures for residential and religious purposes. In the present work, integrated procedures have been put in place for the 3D documentation of these artefacts, whose effectiveness has already been tested by the same team in other Sicilian rock sites. The research aims at the knowledge and cataloguing of places, which are important for the Island's history but to date only marginally explored. It intends to stimulate and plan adequate conservation and enhancement activities. To improve the attendance of the sites, design proposals have been developed to guarantee greater accessibility to the archaeological areas and their understanding by visitors

3D LOW-COST MULTISPECTRAL UAV SYSTEMS: SURVEY AND ANALYSIS OF <i>TORRESINO DA POLVERE</i> OF SAN MARCO IN BERGAMO

The Torresini da Polvere are special constructions built by the Venetian Republic between the 16th and 18th centuries. They are unique architectural structures, characterized by a pyramidal roof, for the preservation of the gunpowder. The torresino of San Marco in Bergamo is one of the best-preserved in the world and was then the subject of detailed research. The powder magazine was measured by professional, ground-based and airborne instruments. The paper shows a comparison between the existing structure and the photogrammetric model obtained by low-cost UAV systems to formulate an accurate estimate, including the pros and cons of different survey systems. It also aims to deepen the aspects associated with 3D reconstruction using multispectral imagery, from the investigation to data processing, to create models with NDVI mapping for the study of the building’s decay caused by biological agents

Clinical conundrum. Three management strategies for three-vessel coronary artery disease?

Inspired by King’s word, the goal of optimal pharmacotherapy is optimizing patient outcomes in an appropriate and consistent fashion, integrating itself with other management strategies, when and as appropriate, but this goal cannot be achieved if such therapy is not implemented in a forceful and proactive fashion. Indeed, cardiovascular pharmacotherapy for ischemic heart disease due to coronary artery disease (CAD) represents a unique case study in this sense, given the complex interplay between societal and individual preventive strategies as well as clinical treatments aimed at secondary or tertiary prevention, which may apparently challenge immediate and thorough implementation

Percutaneous coronary intervention driven by combined use of intracoronary anatomy and physiology Towards a tailored therapy for coronary artery disease

Coronary angiography classically allows a bidimensional evaluation of the vascular lumen, however with many limitations in the case of eccentric lesions, irregular contour or tortuosity of the vessel.Moreover, it does not enable to assess neither the features of the vessel wall, nor the functional significance of a lesion [1]. Newer technologies are available to overcome these limitations.We present a case of percutaneous coronary revascularization optimized by combined use of two of the most widely used techniques

INTEGRATED 3D SURVEY AND DIAGNOSTIC ANALYSIS FOR THE BUILDING ENGINEERING: THE FORMER KINDERGARTEN SAN FILIPPO NERI IN DALMINE

The paper aims to emphasise the positive contribution that the 3D laser scanning and digital photogrammetry survey, integrated with diagnostic analysis techniques, can make in the field of construction engineering. The case study of the former kindergarten San Filippo Neri in Dalmine intends to contribute to the development of methodologies and operational tools related to the knowledge and conservation of modern and contemporary heritage. After archival research aimed at retracing the building's technical-constructive evolution, the study was extended out through the metric and morphological survey of both its external walls and internal spaces, paying special attention to the analysis of the deformations of the large horizontal surfaces, such as floors and ceilings. Diagnostic investigations – thermographic and microclimatic – have completed the survey campaign, so allowed to read both the envelope and the substance of the building, and to identify the critical issues. This work adopts and shows the correct glide slope to succeed in an adaptive reuse project in which the design stage can result solely from the in-depth study of the building

THE INTEGRATED 3D SURVEY FOR PLANNED CONSERVATION: THE FORMER CHURCH AND CONVENT OF SANT'AGOSTINO IN BERGAMO

Time effects and human offenses threaten cultural heritage. The constant observation and periodic maintenance activities are the most suitable safeguarding solution: they can limit risk situations and facilitate interventions. Today, planned conservation is thus the best pattern to preserve the monuments as focused on small preventive restoration: actions organized and structured according to steady and regular monitoring. The preliminary survey, the interpretation of metric and material data and the subsequent verification of the evolution of instability and degradation phenomena based on a comparison with previous information, is a long and expensive activity if carried out by traditional systems. Otherwise, 3D laser scanning and image-based reconstruction methodologies &ndash; if properly applied within optimized operational practices &ndash; can allow both the systematic control of assets’ conditions and the evaluation of their health status and decay problems in a short time and with lower costs. This paper intends to show the validity of such an innovative methodology through a case study applied to the former church and convent of Sant'Agostino (St. Augustine) in Bergamo