1. Graduate Student, Dept. of Construction Engineering, American Univ. in Cairo, Cairo, Egypt.
2. Assistant Professor, Dept. of Structural Engineering, Ain Shams Univ., Cairo, Egypt; Dept. of Construction Engineering, American Univ. in Cairo, Cairo, Egypt.
3. Graduate Teaching Assistant, Dept. of Construction Engineering, American Univ. in Cairo, Cairo, Egypt.
4. Professor and Associate Dean of Industrial Partnerships and Extended Education, Dept. of Construction Engineering, American Univ. in Cairo, Cairo, Egypt.