A method, system and computer program product for providing and using context-addressed tabs in a computer presentation application may include selecting at least one element in a current slide of a presentation displayable in a computer window. NAND Flash memory strings, arrays, and devices in accordance with embodiments of the present invention, include vertical Flash memory cells to form NAND architecture memory cell strings and memory arrays. The preferred embodiments are acceleration sequence comparison method, acceleration difference comparison method, and acceleration sequence and difference comparison method. prior to solidification, feeding a portion of the discharged polymer melt stream to a slipstream to form a slipstream polymer melt, andd. Therefore, the line width of non-exposure region can be freely controlled by the line width control region and not restricted to the wavelength of the incident radiation.