07 Tesi di Dottorato

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Microwave propagation for deep space exploration: modeling radio-meteorological effects and optimizing data volume transfer

Microwave propagation is strongly influenced by Earth atmosphere: especially for frequencies above 10 GHz, tropospheric effects may strongly degrade microwave propagating signals. These effects, and more in general radio-meteorological effects of the atmosphere on a propagating electromagnetic signal, can be modeled to allow the computation of the attenuation experienced by the signal. In the case of deep space missions, we have a space-to-Earth communication (data transfer) between a spacec...

Ramsey-type principles, regressivity and well-orderings

Different variations of Ramsey's Theorem and Hindman's Theorem are studied by relating them to Well-Ordering Preserving Principles through both direct implications over RCA₀ and via computable and Weihrauch reductions. A regressive version of Hindman's Theorem is then introduced as a restriction of Taylor's Canonical Hindman's Theorem, and several results concerning the Reverse Mathematics of this Regressive Hindman's Theorem and its natural restrictions are provided. These results include th...

Translating human drug use patterns into rat models: exploring interindividual differences via refined drug self-administration procedures

Drug users instrumentalize the drug dosing-timing relationship (i.e. preferred drug dose in the preferred time) to produce their desired effects (i.e. euphoria, withdrawal avoidance, etc.). This is achieved by harnessing drug type, dosage, route, and frequency of drug taking. Yet, preclinical addiction research often employs self-administration and choice procedures based on discrete, as opposed to continuous dimension strategies, characterized by pre-selected experimenter-imposed unit-doses ...

Le case degli architetti a Roma in età moderna

La ricerca mira a fornire una maggiore conoscenza globale, tramite un approccio organico e integrato, di un fenomeno finora indagato solo parzialmente, in maniera discontinua e puntale: le dinamiche insediative degli architetti e le diverse forme che le loro case hanno assunto all’interno della città di Roma tra i secoli XVI e XVII. Per «case degli architetti» si intendono le abitazioni di figure che si occupano a vario titolo dell’architettura e le residenze di architetti, pittori o scultori...

Planck-scale-deformed relativistic symmetries and applications in astrophysics

This thesis research work has been mainly devoted to addressing the possibility that we might be observing some GRB neutrinos affected by in-vacuo dispersion; moreover, for GRB photons, the abundance of observations cumulatively obtained by the Fermi telescope reached a level sufficient to allow us to perform a statistical analysis over the whole collection of observed GRBs. The outline of the thesis will be the following: the first part is directed to a mathematical overview of relativistic ...

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