1 NEW RECURRENT NEURAL ARCHITECTURES Massimo Buscema, Marco Breda and Stefano Terzi (2005) Semeion - Research Center of Science of Communication Via Sersale 117 00128 Roma, Italy tel. 0039 – 06 – 50652350 fax 0039 – 06 – 5060064 e-mail m.buscema@semeion.it e-mail semeion@semeion.it Proceedings of the 2006 WSEAS International Conference on Mathematical Biology and Ecology, Miami, Florida, USA, January 18-20, 2006 (pp174-201)