One: Field Theory and Quantization -- Renormalizable Theories with Symmetry Breaking -- Computing Methods in Quantum Electrodynamics -- Classical Mechanics of Autocomposite Particles -- Exclusion of Static Solutions in Gravity-Matter Coupling -- Star-Products: Quantization and Representations without Operators -- High Energy Tests of Quantum Electrodynamics -- Non-Ideal Effects on the Stability of a Cylindrical Current-Carrying Plasma -- Broken Symmetry of Lie Groups of Transformation Generating General Relativistic Theories of Gravitation -- Ward-Takahashi Identities and Gauge Invariance -- Towards the Early Stages of the Universe -- Covariant Quantizations of the Maxwell Field -- Gauss' Law in Local Quantum Field Theory -- Discrete States Buried in the Continuum -- Two: Statistical Physics -- Some Universal Aspects of the Transition to Stochasticity for Non-Conservative Dynamical Systems -- Hydrodynamic Models with Random Forces -- High-Temperature Study of Planar Rotator- and XY-Models for Dimensions D ? 2 -- General Langevin Equations and Functional Integration.