1. Assistant Professor, Dept. of Civil and Environmental Engineering, Univ. of Washington, Seattle, WA 98195.
2. Ph.D. Student, Dept. of Microbiology and Molecular Genetics, Univ. of California, Davis, CA 95616.
3. Professor, Dept. of Civil and Environmental Engineering, Univ. of California, Davis, CA 95616 (corresponding author).
4. Professor, Dept. of Microbiology and Molecular Genetics, Univ. of California, Davis, CA 95616.
5. Senior Lecturer, Dept. of Structural Engineering, Ben-Gurion Univ. of the Negev, Be’er Sheva 841050, Israel.