Sommario Nei sistemi P2P un serio problema che ne limita la scalabilità è l’esplosione di traffico dovuto al fatto che ogni peer propaga le query a tutto l’insieme dei peer ad esso noti. In questo lavoro affrontiamo tale problema proponendo una strategia per ridurre il numero di peer a cui propagare le query selezionando quei peer verso i quali l’aspettativa è alta. L’innovatività della propost...

Conventional mammographic image contrast is derived from x-ray absorption, resulting in breast structure visualization due to density gradients that attenuate radiation without distinction between transmitted, scattered, or refracted x-rays. Diffractionenhanced imaging (DEI) allows for increased contrast with decreased radiation dose compared to conventional mammographic imaging due to monochro...

 Background: The important risk factors in obesity are related to unhealthy nutritional habits. The aim of this study was to estimate and compare the macro- and micro-nutrients’ intake in breakfast and midmorning snacks. Methods: This cross-sectional study was conducted among 569 students (12-16 years) by the multistage cluster sampling method. The demographic data were gathered by interview. A...

We describe the Drifting Edge Illusion (DEI), in which a stationary edge appears to move when it abuts a drifting grating. Although a single edge is sufficient to perceive DEI, a particularly compelling version of DEI occurs when a drifting grating is viewed through an oriented and stationary aperture. The magnitude of the illusion depends crucially on the orientations of the grating and apertu...

This paper presents the results of a project aiming to the development of an innovative web site related to the famous monumental complex Piazza dei Miracoli in Pisa. The website includes an innovative section containing an advanced Virtual Reality application, making use of a state-of-the-art 3d web technology. In this application users are able to explore the space and the history of the monu...

We are American art therapists currently teaching in the first art therapy master’s program to be established in Australia. The aim of this report is to describe, from our perspective, the development and present status of art therapy in Australia, introducing the reader to information about its history, its national association and its current trends in training and practice. Also included is ...

Techniques that make possible the non-destructive continuous observation of plant anatomy and developmental processes provide novel insights into these phenomena. Non-destructive imaging of seeds was demonstrated using the synchrotron-based X-ray imaging technique, diffraction enhanced imaging (DEI). The seed images obtained had good contrast and definition, allowing anatomical structures and p...