A valve assembly having a valve-seal on a valve member that moves between an open and a closed position within a valve support housing for controlling fluid flow, particularly for use as a shut-off valve. The method can include the operation of identifying persons having an interest in a non-profit organization. The light sensor generates light level data based on measured light levels. The second modulus control signal is generated by a second counter and has a first logic value when the second counter is in a non-zero state and a second logic value when the second counter reaches zero. The gesture dictionary may also take the form of a computer application that may be easily accessed from other applications. The interfaces between these layers and their adjacent dielectric layers are positioned in the stack independent of the desired aspect ratio of trench openings of the copper interconnect in order to improve optical properties of the dielectric stack.