Harold Josephs is Professor Emeritus of Engineering in the Department of Mechanical Engineering at Lawrence Technological University in Southfield, MI, since 1984 He received his M.S. degree from Villanova University, and his Ph.D. from the Union Institute, and worked in industry for General Electric and Ford Motor Company. His research interests are in fastening and joining, human factors, ergonomics, and safety. Dr. Josephs is s a licensed Professional Engineer, Certified Safety Professional, Certified Professional Ergonomist, Certified Quality Engineer, Fellow of the Michigan Society of Engineers, and a Fellow of the National Academy of Forensic Engineers. Ronald L. Huston is Professor Emeritus and Distinguished Research Professor in the Mechanical and Materials Engineering department at the University of Cincinnati, and Director of the Institute for Applied Interdisciplinary Research. He earned his MS in Civil Engineering and PhD in Engineering Mechanics from the University of Pennsylvania, Philadelphia, PA. He is a licensed professional engineer (PE) in Ohio, Kentucky, Alabama, Louisiana, and Texas, and has served as Division Director of Civil and Mechanical Engineering at the National Science Foundation. Dr. Huston’s fields of research are Biomechanics and Cell Mechanics.