Helio J.C. Barbosa (www.lncc.br/~hcbm) is a Senior Technologist at the Laboratório Nacional de Computação Científica, Brazil. He received a Civil Engineering degree (1974) from the Federal University of Juiz de Fora, where he is an Associate Professor in the Computer Science Department, and M.Sc. (1978) and D.Sc. (1986) degrees in Civil Engineering from the Federal University of Rio de Janeiro, Brazil. During 1988-1990 he was a visiting scholar at the Division of Applied Mechanics, Stanford University, USA. He is currently mainly interested in the design and application of nature-inspired metaheuristics in engineering and biology.