On Vector Quasi-Equilibrium Problems -- The Log-Quadratic Proximal Methodology in Convex Optimization Algorithms and Variational Inequalities -- The Continuum Model of Transportation Problem -- The Economic Model for Demand-Supply Problems -- Constrained Problems of Calculus of Variations Via Penalization Technique -- Variational Problems with Constraints Involving Higher-Order Derivatives -- On the strong solvability of a unilateral boundary value problem for Nonlinear Parabolic Operators in the Plane -- Solving a Special Class of Discrete Optimal Control Problems Via a Parallel Interior-Point Method -- Solving Large Scale Fixed Charge Network Flow Problems -- Variable Projection Methods for Large-Scale Quadratic Optimization in data Analysis Applications -- Strong solvability of boundary value problems in elasticity with Unilateral Constraints -- Time Dependent Variational Inequalities - Some Recent Trends -- On the Contractibility of the Efficient and Weakly Efficient Sets in R2 -- Existence Theorems for a Class of Variational Inequalities and Applications to a Continuous Model of Transportation -- On Auxiliary Principle for Equilibrium Problems -- Multicriteria Spatial Price Networks: Statics and Dynamics -- Non regular data in unilateral variational problems -- Equilibrium Concepts in Transportation Networks: Generalized Wardrop Conditions and Variational Formulations -- Variational Geometry and Equilibrium -- On the Calculation of Equilibrium in Time Dependent Traffic Networks -- Mechanical Equilibrium and Equilibrium Systems -- False Numerical Convergence in Some Generalized Newton Methods -- Distance to the Solution Set of an Inequality with an Increasing Function -- Transportation Networks with Capacity Constraints.