Ricerc@Sapienza

Over the course of the previous century several European countries
absorbed substantial flows of fellow countrymen that had been driven
out of the colonies, generally in the wake of dramatic events. Their
residential integration in the mother country was characterized by complex
processes that the scientific literature has thus far only partially
addressed. An emblematic case is that of Italians expelled en-masse
from Libya in the 1960s. The process of expulsion, concentrated mainly

Plasmonic metamaterials and metasurfaces are important for many linear
and nonlinear photonic applications. Here, the possibility to control a nanostructured
layer spontaneously formed near an interface of a thin silver film is
shown, where the interplay between a grain boundary structure and surface
segregation of germanium atoms leads to encapsulation of the grains and,
as the result, formation of a composite metamaterial near the film surface.
This Ag/Ge composite exhibits strong localized surface plasmon resonances

Graph theory analysis on resting state electroencephalographic rhythms disclosed topological properties of cerebral network. In Alzheimer’s disease (AD) patients, this approach showed mixed results. Granger causality matrices were used as input to the graph theory allowing to estimate the strength and the direction of information transfer between electrode pairs.

We use Italian data from the Multipurpose Household Survey to explore how participation in social networking sites (SNS) such as Facebook and Twitter affects the most economically relevant aspect of social capital, trust. We account for measures of trust in strangers (often referred to as social trust), trust in neighbours (particularized trust) and trust in the police (institutional trust).

There is growing evidence that face-to-face interaction is declining in many countries, exacerbating the phenomenon of social isolation. On the other hand, social interaction through online networking sites is steeply rising.