Snarks are cubic bridgeless graphs of chromatic index 4 which had their origin in the search of counterexamples to the Four Color Conjecture. In 2003, Cavicchioli et al. proved that for snarks with less than 30 vertices, the total chromatic number is 4, and proposed the problem of finding (if any) the smallest snark which is not 4-total colorable. Several families of snarks have had their total...

Helpful discussions with Bob Cumby and Diana Moss are gratefully acknowledged.

F a c u l t y M e n t o r Diana Krause College of Medicine

Acknowledgements The research presented in this thesis is motivated by a joint project of T-Systems Nova GmbH Technologiezentrum and the Konrad-Zuse-Zentrum für Informationstechnik Berlin, financed by Deutsches Forschungsnetz e.V. Working on this project was very instructive for me. The cooperation with Jörg Rambau, Diana Poensgen and Sven O. Krumke was very pleasant. I wish to thank them for t...

Albert Cohen, INRIA, FR (Contact Albert Cohen [7]) Andrew Davison, Imperial College London, GB (Contact Andrew Davison [8]) Diana Goehringer, Ruhr-University Bochum, DE (Contact Diana Goehringer [9]) Richard Membarth, DFKI, Saarbrücken, DE (Contact Richard Membarth [10]) Muhammad Shafique, Chair for Embedded Systems (CES), Karlsruhe Institute of Technology (KIT), DE (Contact Muhammad Shafique [...

Before its demise DIANA Hi-TECH, LLC, demonstrated the use of two 50 kJoule Plasma Focus devices for the copius production of fast neutrons, x-rays and radio-isotopes. Such a device is suitable for fast neutron non invasive interogation of contra-band materials including hidden nuclear materials. It could be particularly useful for a fast and fail safe interogation of large cargo containers, or...

Pond carrying capacity is largely determined by management practices. Earlier work on semiintensive culture of tilapia using manure or inorganic fertilizers indicated that carrying capacity might reach 2,000 to 3,000 kg/ha (Diana et al. 1991a, b; KnudHansen et al. 1991). As stocking density is increased in fertilized ponds, carrying capacity remains largely the same and density-dependent growth...