Search results for "Centro"

Sistemi generatori della struttura urbana e caratteri del patrimonio edilizio nel centro storico di Modica

2016

Qualsivoglia operazione finalizzata al recupero e alla riqualificazione di una città storica dovrebbe essere sempre ancorata alla conoscenza approfondita di quelle che sono state, attraverso i secoli, le fasi di formazione e crescita dell’organismo urbano oggetto di indagine. In quest’ottica appare inevitabile individuare quell’insieme di elementi sia naturali, sia artificiali, che si configurano come veri e propri “sistemi generatori” della struttura urbana, da cui discendono le più svariate configurazioni morfologiche originate dall’incontro della struttura urbana con il supporto geologico e orografico. Nel caso del vasto complesso di natura calcarenitica, noto come tavolato ibleo, l’elem…

Riqualificazione a Cammarata

2005

Pubblicazione di un'opera di architettura relativa ad uno spazio pubblico

LE ANFORE PUNICHE DI ENTELLA (SICILIA CENTRO-OCCIDENTALE): ANALISI ARCHEOMETRICHE FINALIZZATE ALLA DETERMINAZIONE DI PROVENIENZA

2011

Centromeric heterochromatin and satellite DNA in the Chironomus plumosus species group

1994

Species of the Chironomus plumosus group display significant differences in their amount of centromeric heterochromatin. A tandem-repetitive satellite-like DNA has been isolated from C. plumosus. This DNA accounts for a major part of the centromeric heterochromatin. The DNA element has a Sau3AI restriction site ("Sau elements") and a monomer length of 165 or 166 bp. It is A-T rich (73%) and reveals a moderate DNA curvature, as shown by gel migration and computer analysis. The chromosomal localization and genomic organization of Sau elements were studied in 24 Chironomus species by in situ hybridization and (or) Southern analysis. The DNA is predominantly located in the centromeric regions …

Experimental and Modeling Analyses of Human Motion Across the Static Magnetic Field of an MRI Scanner

2021

It is established that human movements in the vicinity of a permanent static magnetic field, such as those in magnetic resonance imaging (MRI) scanners induce electric fields in the human body; this raises potential severe risks of health to radiographers and cleaners exposed routinely to these fields in MRI rooms. The relevant directives and parameters, however, are based on theoretical models, and accurate studies on the simulation of the effects based on human movement data obtained in real conditions are still lacking. Two radiographers and one cleaner, familiar with MRI room activities and these directives, were gait analyzed during the execution of routine job motor tasks at different…

A real-time webcam based Eye Ball Tracking System using MATLAB

2015

Eye Ball Tracking System is a device which is intended to assist patients that cannot perform any voluntary tasks related to daily life. Patients who only can control their eyes can still communicate with the real-world using the assistive devices like one proposed in this paper. This device provides a human computer interface in order to take decisions based on their eye movement. A real time data stream is captured via webcam that transfers data serially to MATLAB. Then a sequential image processing scheme segments the iris of the eye and calculates the centroid, thereby generating control signal with the help of a reference axis. The control signals are then used to manipulate the positi…

“Anti-Bayesian” flat and hierarchical clustering using symmetric quantiloids

2017

A myriad of works has been published for achieving data clustering based on the Bayesian paradigm, where the clustering sometimes resorts to Naive-Bayes decisions. Within the domain of clustering, the Bayesian principle corresponds to assigning the unlabelled samples to the cluster whose mean (or centroid) is the closest. Recently, Oommen and his co-authors have proposed a novel, counter-intuitive and pioneering PR scheme that is radically opposed to the Bayesian principle. The rational for this paradigm, referred to as the “Anti-Bayesian” (AB) paradigm, involves classification based on the non-central quantiles of the distributions. The first-reported work to achieve clustering using the A…

Il caso del centro storico di Scicli tra storia, natura e cultura

2011

The research originates from a time-honoured relationship between a local body of illustrious traditions and a research facility of the University of Palermo – the Interdepartmental Research Centre on Historical Centres (hereafter C.I.R.CE.S.), that has the aim of providing consultancy and scientific support to the initiatives of territorial bodies concerning policies and urban and territorial redevelopment plans and the redevelopment of historical centres. Scicli is one of the most important municipalities belonging to the province of Ragusa, which has always been a sort of “island within the island”. has always been a sort of “island within the island”. The urban centres, in addition to b…

Presence and biodistribution of perfluorooctanoic acid (PFOA) in Paracentrotus lividus highlight its potential application for environmental biomonit…

2021

AbstractThe first determination of presence and biodistribution of PFOA in ninety specimens of sea urchin Paracentrotus lividus from two differently contaminated sites along Palermo’s coastline (Sicily) is reported. Analyses were performed on the sea urchins’ coelomic fluids, coelomocytes, gonads or mixed organs, as well as on seawater and Posidonia oceanica leaves samples from the collection sites. PFOA concentration ranged between 1 and 13 ng/L in seawater and between 0 and 794 ng/g in P. oceanica. The analyses carried out on individuals of P. lividus from the least polluted site (A) showed PFOA median values equal to 0 in all the matrices (coelomic fluid, coelomocytes and gonads). Conver…

Localization of HSP70, Cdc2, and cyclin B in sea urchin oocytes in non-stressed conditions.

2003

In Paracentrotus lividus embryos, a Mediterranean sea urchin species, HSP70 is present in all the cells. During cell division it localizes under normal growth conditions on the centrosomes and on the whole isolated mitotic apparatus. Now, in situ hybridization, Western blot analyses, and immunohistochemistry show that the HSP70 mRNA is present in both small and large P. lividus oocytes, that all four isoforms of HSP70 can be found also in the oocytes, and that a certain amount of HSP70 localizes on asters and spindles during polar body formation. Moreover, two representative cell-cycle related proteins, cyclin B, and Cdc2, are present both in small and large oocytes, concentrating in the ge…