1. Department of Civil Engineering, University of North Dakota, 243 Centennial Drive Stop 8115, Grand Forks, North Dakota 58202, United States
2. Department of Chemistry, University of North Dakota, 151 Cornell Street Stop 9024, Grand Forks, North Dakota 58202, United States
3. Department of Biomedical Sciences, University of North Dakota, 1301 Columbia Road North Stop 9037, Grand Forks, North Dakota 58202, United States