1. University of Massachusetts, Amherst, MA, USA
2. Cornell University, Ithaca, NY, USA
3. Texas A&M University, College Station, TX, USA
4. University of Washington, Seattle, WA, USA
5. University of California, Los Angeles, Los Angeles, CA, USA
6. Massachusetts Institute of Technology, Cambridge, MA, USA
7. Tufts University, Medford, MA, USA
8. California Polytechnic State University, San Luis Obispo, CA, USA
9. Georgia Institute of Technology, Atlanta, GA, USA