An efficient lapped transform is realized using pre- and post-filters (or reversible overlap operators) that are structured of unit determinant component matrice s. The pre- and post-filters are realized as a succession of planar rotational transform s and unit determinant planar scaling transforms. The planar scaling transforms can be implemented using planar shears or lifting steps. Further, the...

A device for use by a female for sexual stimulation comprising an inner arm dimensioned for insertion into a vagina, to contact the wall of the vagina at or near the G-spot, an outer arm dimensioned to contact the clitoris, and a resilient U-shaped member connecting the inner and outer arms.

Hydrogen storage materials which are liquid metal alloys in their discharged state, thereby facilitating their recharging by reaction with hydrogen gas.