A device includes a substrate, insulation regions extending into the substrate, a first semiconductor region between the insulation regions and having a first valence band, and a second semiconductor region over and adjoining the first semiconductor region. A method of producing such a composition is provided. The cylinder abuts on the main board and the draw-out portion is located at a side of the main board. The rate-distortion optimization criterion is also introduced to adaptively update in synchronization with intra-coded blocks adaptively based on the true network condition with minimal overhead. A primary email has a primary message to be sent, and a secondary email or floater message is associated with the primary email, but directed to a different set of recipients than the primary email.