Invited Lectures -- Rewriting Systems with Data -- Spiking Neural P Systems: Some Characterizations -- Approximating Graphs by Graphs and Functions (Abstract) -- Traces, Feedback, and the Geometry of Computation (Abstract) -- Contributions -- A Largest Common d-Dimensional Subsequence of Two d-Dimensional Strings -- Analysis of Approximation Algorithms for k-Set Cover Using Factor-Revealing Linear Programs -- A Novel Information Transmission Problem and Its Optimal Solution -- Local Testing of Message Sequence Charts Is Difficult -- On Notions of Regularity for Data Languages -- FJMIP: A Calculus for a Modular Object Initialization -- Top-Down Deterministic Parsing of Languages Generated by CD Grammar Systems -- The Complexity of Membership Problems for Circuits over Sets of Positive Numbers -- Pattern Matching in Protein-Protein Interaction Graphs -- From Micro to Macro: How the Overlap Graph Determines the Reduction Graph in Ciliates -- A String-Based Model for Simple Gene Assembly -- On the Computational Power of Genetic Gates with Interleaving Semantics: The Power of Inhibition and Degradation -- On Block-Wise Symmetric Signatures for Matchgates -- Path Algorithms on Regular Graphs -- Factorization of Fuzzy Automata -- Factorisation Forests for Infinite Words -- Marked Systems and Circular Splicing -- The Quantum Query Complexity of Algebraic Properties -- On the Topological Complexity of Weakly Recognizable Tree Languages -- Productivity of Stream Definitions -- Multi-dimensional Packing with Conflicts -- On Approximating Optimal Weighted Lobbying, and Frequency of Correctness Versus Average-Case Polynomial Time -- Efficient Parameterized Preprocessing for Cluster Editing -- Representing the Boolean OR Function by Quadratic Polynomials Modulo 6 -- On the Complexity of Kings -- Notions of Hyperbolicity in Monoids -- P Systems with Adjoining Controlled Communication Rules -- The Simplest Language Where Equivalence of Finite Substitutions Is Undecidable -- Real-Time Reversible Iterative Arrays -- The Computational Complexity of Monotonicity in Probabilistic Networks -- Impossibility Results on Weakly Black-Box Hardness Amplification -- Maximal and Minimal Scattered Context Rewriting -- Strictly Deterministic CD-Systems of Restarting Automata -- Product Rules in Semidefinite Programming -- Expressive Power of LL(k) Boolean Grammars -- Complexity of Pebble Tree-Walking Automata -- Some Complexity Results for Prefix Gröbner Bases in Free Monoid Rings -- Fast Asymptotic FPTAS for Packing Fragmentable Items with Costs -- An O(1.787 n )-Time Algorithm for Detecting a Singleton Attractor in a Boolean Network Consisting of AND/OR Nodes.