Hamiltonian Systems and Celestial Mechanics -- Foreword -- On the Force Fields which are Homogeneous of Degree -- Bifurcations of the Spatial Central Configurations in the 5-Body Problem -- Convex Central Configurations of Two Twisted n-gons -- The Newtonian n-Body Problem in the Context of Curved Space -- Poincaré Maps and Dynamics in Restricted Planar (n + 1)-Body Problems -- A Methodology for Obtaining Asymptotic Estimates for the Exponentially Small Splitting of Separatrices to Whiskered Tori with Quadratic Frequencies -- Homoclinic and Heteroclinic Orbits for a Class of Singular Planar Newtonian Systems -- Transport Dynamics: from the Bicircular to the Real Solar System Problem -- Quasi-Periodic Almost-Collision Motions in the Spatial Three-Body Problem -- Generalized Discrete Nonlinear Schrödinger as a Normal Form at the Thermodynamic Limit for the Klein-Gordon Chain -- Stability of Euler-Type Relative Equilibria in the Curved Three Body Problem -- Two-dimensional Symplectic Return Maps and Applications -- Central Configurations of an Isosceles Trapezoidal Five-Body Problem -- The Discrete Hamiltonian-Hopf Bifurcation for 4D Symplectic Maps -- Moment Map of the Action of SO(3) on R3XR3 -- Virus Dynamics and Evolution -- Foreword -- Modelling Infection Dynamics and Evolution of Viruses in Plant Populations -- The Spread of Two Viral Strains on a Plant Leaf -- Tracking the Population Dynamics of Plant Virus Escape Mutants -- Evolutionary Escape in Populations with Genotype-Phenotype Structure -- Evolution of Stalk/Spore Ratio in a Social Amoeba: Cell-to-Cell Interaction Via a Signaling Chemical Shaped by Cheating Risk -- Within-Host Viral Evolution Model with Cross-Immunity -- Modelling Viral Evolution and Adaptation -- Changes in Codon-Pair Bias of Human Immunodeficiency Virus Type 1 Affect Virus Replication -- Competing Neutral Populations of Different Diffusivity -- Density-Dependent Diffusion and Epidemics on Heterogeneous Metapopulations -- Are Viral Blips in HIV-1-Infected Patients Clinically Relevant? -- Models of Developmental Plasticity and Cell Growth.