Aitor Vazquez

Learn More
We introduce a graph generating model aimed at representing the evolution of protein interaction networks. The model is based on the hypotesis of evolution by duplications and divergence of the genes which produce proteins. The obtained graphs shows multifractal properties recovering the absence of a characteristic connectivity as found in real data of(More)
A. Vazquez, A. Flammini, A. Maritan and A. Vespignani 1 Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA 2 International School for Advanced Studies (SISSA) and INFM, V. Beirut 2-4, 34014 Trieste, Italy 3 The Abdus Salam International Centre for Theoretical Physics, P.O. Box 586, 34100 Trieste, Italy and 4 Laboratoire de Physique(More)
Presentation skills, such as oral expression and public speaking, have normally been relegated to the background in engineering degree programs. In recent years, however, the labor market has specifically demanded these kinds of skills in engineers. Accordingly, new engineering degrees, adapted to the goals of the Bologna Declaration or ABET criteria,(More)
High-Brightness Light Emitting Diodes (HB-LEDs) are considered the future trend in lighting not only due to their high efficiency and high reliability, but also due to their other outstanding characteristics: chromatic variety, shock and vibration resistance, etc. Nevertheless, they need the development of new power supplies especially designed for boosting(More)
This paper presents the introduction of problembased learning (PBL) in a power electronics course at the University of Oviedo, Gijón, Spain, by means of two practical projects: the design and construction of a switching-mode power supply (SMPS) prototype and the static study of a dc–dc converter topology. The goal of this innovation was for students to(More)
  • 1