Guidelines of Special Care Dentistry in Patients with Chromosomal and Genetic syndromes

Chromosomal and genetic syndromes are frequently associated with dental and cranio-facial alterations. The aim of our study is to identify and describe the dental and craniofacial alterations typical of six genetic and chromosomal syndromes examined. Materials and Methods- A dental visit was performed to 195 patients referred from Sant’Orsola Hospital of Bologna, University of Bologna, to Service of Special Need Dentistry, Dental Clinic, Department of Biomedical and Neuromotor Science, University of Bologna. The patients recruited were 137 females and 58 males, in an age range of 3-49 years (mean age of 13.8±7.4). The total sample consisted of subjects affected with Down Syndrome (n=133), Familiar Hypophosphatemic Ricket (n=10), Muscular Dystrophies (n=12), Noonan Syndrome (n=13), Turner Syndrome (n=17), Williams Syndrome(n=10). A questionnaire regarding detailed medical and dental history, oral health and dietary habits, was filled by parents/caregivers, or patients themselves when possible. The intra-oral and extra-oral examination valued the presence of facial asymmetries, oral habits, dental and skeletal malocclusions, dental formula, dental anomalies, Plaque Index (Silness&LÖe Index), caries prevalence (dmft/DMFT index), gingivitis and periodontal disease, and mucosal lesions. Radiographic examinations (Intraoral radiographies, Orthopanoramic, Skull teleradiography) were executed according to patient’s age and treatment planning. A review of literature about each syndrome and its dental and cranio-facial characteristics and about caries, hygiene status and malocclusion prevalence on syndromic and non-syndromic population was performed. Results - The data of all the patients were collected in the “Data Collection Tables” created for each syndrome. General anamnesis information, oral hygiene habits and dmft/DMFT, PI, malocclusion prevalence were calculated and compared to syndromic and non-syndromic population results found in literature. Discussions and conclusions - Guidelines of Special Care dentistry were indicated for each syndrome, in relation to each syndrome features and individual patient characteristics.

Energy-efficient Communication and Estimation in Wireless Sensor Networks

This thesis focuses on the energy efficiency in wireless networks under the transmission and information diffusion points of view. In particular, on one hand, the communication efficiency is investigated, attempting to reduce the consumption during transmissions, while on the other hand the energy efficiency of the procedures required to distribute the information among wireless nodes in complex networks is taken into account. For what concerns energy efficient communications, an innovative transmission scheme reusing source of opportunity signals is introduced. This kind of signals has never been previously studied in literature for communication purposes. The scope is to provide a way for transmitting information with energy consumption close to zero. On the theoretical side, starting from a general communication channel model subject to a limited input amplitude, the theme of low power transmission signals is tackled under the perspective of stating sufficient conditions for the capacity achieving input distribution to be discrete. Finally, the focus is shifted towards the design of energy efficient algorithms for the diffusion of information. In particular, the endeavours are aimed at solving an estimation problem distributed over a wireless sensor network. The proposed solutions are deeply analyzed both to ensure their energy efficiency and to guarantee their robustness against losses during the diffusion of information (against information diffusion truncation more in general).

Il dilemma femminista dell'uso politico della violenza in Italia negli anni Settanta e Ottanta: tra pensiero politico e caso storico

Degli anni Settanta si parla, ormai quasi canonicamente, come gli anni della crisi, una crisi che compare quasi simultaneamente fuori e dentro i confini nazionali, e si configura come vera e propria crisi di sistema. Considerando il turning point rappresentato dai Seventies, è diffusa l'interpretazione nel contesto italiano del paradigma politologico secondo il quale è nella mancanza e nelle assenze del sistema politico-istituzionale alle domande di modernizzazione democratica provenienti dalle soggettività che emergono in quella che è stata definita la “stagione dei movimenti” che andrebbero individuate le radici prima della scelta della violenza come strumento di lotta politica e poi del cosiddetto “riflusso”. Questo studio cerca di analizzare le dinamiche e gli sviluppi nella relazione tra movimento femminista e violenza politica in Italia tra anni settanta e anni ottanta. Per comprendere ed analizzare le dinamiche di tale sviluppo è stato necessario prima ricostruire la genealogia del concetto di violenza politica elaborato dalla filosofia politica nel XX secolo e poi confrontarlo con il concetto di violenza proposto dal pensiero femminista nello stesso arco temporale. Allo stesso tempo si è considerato il fenomeno della violenza politicamente motivata agita nel decennio settanta, analizzando le specificità del femminismo stesso, ma anche, la possibilità di individuare lo scarto – politico, ideologico e esistenziale – tra le definizioni date dalla pratica femminista alla categoria di violenza e le peculiarità degli altri movimenti che si muovevano nella scena politica e sociale tra anni settanta e anni ottanta