Before revision: Two-component feedback loops (TCFLs) are dynamical systems arising in mathematical biology that describe the time evolution of pairs of interacting molecules using complex network theory. These dynamical systems closely resemble a Hamiltonian system in  R ^{2n}, but with the canonical equation for one of the variables in each conjugate pair rescaled by a number called the Turing instability parameter.
After revision: Networks of planar Hamiltonian systems closely resemble a Hamiltonian system in  R ^{2n}, but with the canonical equation for one of the variables in each conjugate pair rescaled by a number called the Turing instability parameter.