Semantics, Parametricity, and Types -- A Sound Semantics for OCaml light -- Parametric Polymorphism through Run-Time Sealing or, Theorems for Low, Low Prices! -- Regular Expression Subtyping for XML Query and Update Languages -- Semantics -- A Theory of Hygienic Macros -- A Hybrid Denotational Semantics for Hybrid Systems -- Full Abstraction for Linda -- Practical Programming with Higher-Order Encodings and Dependent Types -- Functional and Logic Programming -- Programming in JoCaml (Tool Demonstration) -- Playing with : Constraints and Domain Cooperation -- Typing Safe Deallocation -- Iterative Specialisation of Horn Clauses -- ESOP Invited Talk -- Constructive Mathematics and Functional Programming (Abstract) -- Static Analysis -- Ranking Abstractions -- Non-disjunctive Numerical Domain for Array Predicate Abstraction -- Upper Adjoints for Fast Inter-procedural Variable Equalities -- Cover Algorithms and Their Combination -- Security I -- Tapido: Trust and Authorization Via Provenance and Integrity in Distributed Objects (Extended Abstract) -- Linear Declassification -- Just Forget It – The Semantics and Enforcement of Information Erasure -- Concurrency -- Open Bisimulation for the Concurrent Constraint Pi-Calculus -- The Conversation Calculus: A Model of Service-Oriented Computation -- Inferring Channel Buffer Bounds Via Linear Programming -- ETAPS Invited Talk -- Verification of Higher-Order Computation: A Game-Semantic Approach -- Program Verification -- Verification of Equivalent-Results Methods -- Semi-persistent Data Structures -- A Realizability Model for Impredicative Hoare Type Theory -- Oracle Semantics for Concurrent Separation Logic -- Security II -- Certificate Translation in Abstract Interpretation -- A Formal Implementation of Value Commitment.