National Security and International Environmental Cooperation in the Arctic — the Case of the Northern Sea Route Judith Riley IUTAM representative) The contributions include 53 IUTAM representative) The contributions include mathematical issues on boundary integral equa­ tions and boundary element methods as well as applications to fluid and solid mechanics and to heat transfer Imaging and Tracking Stem Cells: Methods and Protocols provides both a flavor of the field as it currently is and a source to stimulate new approaches and methodologies by those interested in tracking stem cells and their progeny Alexei Roginko and Alexander Kolossov has been invaluable