David L. Price is Director of Research at Conditions Extremes et Materiaux: Haute Temperature et Irradiation (CEMHTI), Orleans, France. His research interests include order and disorder in solids and liquids, dynamics of disordered systems, the glass transition and melting, neutron diffraction with isotope substitution, deep inelastic and quasielastic neutron scattering, and anomalous, high-energy and inelastic X-ray scattering.