1. Argonne National Lab. (ANL), Argonne, IL (United States)
2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
3. King Abdullah University of Science and Technology (KAUST), Thuwal (Saudi Arabia)
4. Univ. of Texas, Austin, TX (United States)
5. Univ. of Oxford (United Kingdom)
6. ETH Zurich (Switzerland)
7. Illinois Institute of Technology, Chicago, IL (United States)