I. Stability and Persistence for Ecological Models -- Stability Conditions for Two Predator One Prey Systems -- A Unified Approach to Persistence -- Reflections and Calculations on a Prey-Predator-Patch System Problem -- A Homotopy Technique for a Linear Generalization of Volterra Models -- Cooperative Systems Theory and Global Stability of Diffusion Models -- II. Selection and Evolutionary Games -- The n-Person War of Attrition -- Mutation-Selection Models in Population Genetics and Evolutionary Game Theory -- III. Demography for Structured Opulations -- Pair Formation in Age-Structured Populations -- The Markov Structure of Population Growth -- IV. Mathematical Models of the Immune Response -- On a Generalized Mathematical Model of the Immune Response -- Recent Results in Mathematical Modeling of Infectious Diseases -- Applications of the Mathematical Model of Immunological Tolerance to Immunoglobulin Suppression and AIDS -- Distribution of Recirculating Lymphocytes: A Stochastic Model Foundation -- V. Simulation and Control in Medicine -- Recent Progress in 3-D Computer Simulation of Tumor Growth and Treatment -- Mathematical Simulation of the Immunomodulating Role of Energy Metabolism in Support of Synergism and Antagonism of the Compartments of an Immune System -- Interleukin 2 and Immune Response Control Mathematical Model