Caswell A. Evans, Jr, DDS, MPH, is currently the Associate Dean for Prevention and Public Health Sciences at the University of Illinois, Chicago College of Dentistry; he is also a faculty member in the UIC School of Public Health. Previously he served as the Executive Editor and Project Director for Oral Health in America: A Report of the U.S. Surgeon General. For twelve years, Dr. Evans was Di...

• Although there is a worldwide surge of interest in conservation, many justifications rest on shaky or ephemeral grounds. • Arguments for conservation of biodiversity often include strong ethical or aesthetic components which are superficially attractive but depend on potentially changeable social circumstances. • Economic justifications based on undiscovered potential are susceptible to chang...

We prove Iqbal’s conjecture on the relationship between the free energy of closed string theory in local toric geometry and the Wess-ZuminoWitten model. This is achieved by first reformulating the calculations of the free energy by localization techniques in terms of suitable Feynman rule, then exploiting a realization of the Feynman rule by free bosons. We also use a formula of Hodge integrals...