Shem Oyoo Wandiga Assistant Research Professor of Computer Science B.Sc.(Chemistry)- Howard University, M.Sc. (Chemistry)- University of Maryland -USA Honors National Medal of Excellence in Science and Technology Contact information P.O. Box 30197 - 00100 GPO, NAIROBI . Kenya .Tel: 254-20-311714/315540/4446140, Email: wandigas@uonbi.ac.ke