Superconductivity at Very Hygh Temperatures - Hyperconductivity
  The mechanism of superconductivity caused by the electron-vibrational centres and their inherent oscillations in crystals and solid-state structures near room temperature and at higher temperatures - hyperconductivity is discussed and actualized. The experimental data about hiperconductivity in some materials are presented. Hyperconductivity arises and exists from normal-superconducting transition temperature Tc to 800K and probably up to melting of material (probably up to temperature of crystal melting and is higher). Tc in various materials varies from hundred up to several hundreds degrees on Kelvin scale depending on size of average nuclear number of a material. 
V.A.Vdovenkov (MIREA)