“…In the biological domain, circle maps have been useful in modelling mode-locking (Bauer & Martienssen, 1991), cardiac arrythmias (Bub & Glass, 1995;Glass, 1991;Glendinning, 1995) and neural networks (Aihara et al, 1990;Bressloff & Stark, 1990;Zeller et al, 1995). In addition, they have been applied to, for example, models of Josephson junctions (Jensen et al, 1983), electrical conductivity in barium sodium niobate (Martin & Martienssen, 1986), lasing (Marriott & Delisle, 1989) and chemical reactions (Lauterborn & Eick, 1988).…”