A thorough method for restricting which operations can be run by a user on a single workstation computer or by a user on a session in a multi-user environment, such as Microsoft Windows 2000 Terminal Services. The seat has lateral restraints for laterally retaining an occupant of the seat, and an actuating device for adapting the shape andor size of the lateral restraints as a function of vehicle driving mode. The elastic apparatus has a first torsion arm and a second torsion arm. A comparator determines the presence of unwanted noise by calculating the Kurtosis value of the coherent unwanted noise signal. The stones can be used to conduct a cold andor hot stone massage. Where the storage virtualization is carried out using a switch, router, or other storage network appliance, the information about virtual devices is stored local to the device.