Dr. Ajay Dalai,Visiting Scientist, Catalysis and Chemical Reaction Engineering Laboratories, Department of Chemical Engineering, University of Saskatchewan, Saskatoon, SK, Canada "Biodiesel: A Viable Alternative for Petro-Diesel Fuel," 3/16/04.

Dr. Catherine Louis, CNRS Director of Research, France, "Preparation of Gold Nanoparticles Supported on TiO2 and Reactivity in CO Oxidation," 4/2/04.

Dr. Alexander Khassin, Boreskov Institute of Catalysis, Novosibirsk, Russia, "Membranes in The Fischer-Tropsch Synthesis," 4/5/04.

Dr. Gerald H. Luttrell, Professor, Department of Mining and Minerals Engineering, Virginia Polytechnic Institute and State University, "Optimization of Preparation Plant Performance," 5/6/04.

Dr. Anne M. Gaffney, Rohm and Haas Co., Philadelphia, PA, "Selective Catalytic Partial Oxidation of Methane To Syngas," 5/14/04.