Concurrency.- Variations of the Itai-Rodeh Algorithm for Computing Anonymous Ring Size.- Axiomatizing Team Equivalence for Finite-State Machines.- Asynchronous pi-calculus at work: the call-by-need strategy.- Deadlock Analysis of Wait-Notify Coordination.- Enhancing reaction systems: a process algebraic approach.- Checking the Expressivity of Firewall Languages.- Polymorphic Session Processes as Morphisms.- Guess Who's Coming: Runtime Inclusion of Participants in Choreographies.- A Complete Axiomatizion of Branching Bisimulation for a Simple Process Language with Probabilistic Choice.- Walking Through the Semantics of Exclusive and Event-Based Gateways in BPMN Choreographies.- Stronger Validity Criteria for Encoding Synchrony.- Confluence of the Chinese Monoid.- Logic and Constraint Programming.- A coalgebraic approach to unification semantics of logic programming.- Polyadic Soft Constraints.- Security and Privacy.- Core-concavity, Gain Functions and Axioms for Information Leakage.-Formalisation of Probabilistic Testing Semantics in Coq.- Fully Syntactic Uniform Continuity Formats for Bisimulation Metrics.- Fooling the Parallel Or Tester with Probability 8/27.- Categorical information flow.- Statistical Epistemic Logic.- Approximate model counting, sparse XOR constraints and minimum distance.- Verification and Control of Turn-Based Probabilistic Real-Time Games.- Refinement Metrics for Quantitative Information Flow.- Models and Puzzles.- Toward a Formal Model for Group Polarization in Social Networks.- Make Puzzles Great Again.