Existence Criteria for Bifurcations as Stability Criteria for Critical Nonlinear Control Systems -- Asymptotic System Analysis and Goal Functions -- Strange Attractors in 3-Variable Reaction Systems -- Structures of Excitation and Inhibition -- A new Approach to Synaptic Interactions -- Figure-Ground Discrimination by the Visual System of the Fly -- Evolution of the Adaptive Landscape -- Cell Assemblies in the Cerebral Cortex -- Excitatory and Inhibitory Processes Giving Rise to the Delayed Response in the Retinal Ganglion Cell of the Frog -- On Constrained Transinformation Functions -- Self-Diagnosis of Interactive Systems