Devices and methods are disclosed which relate to managing multiple public user identifiers in a database by setting customizable access rules and requiring authorization from applications for access. Received signals are converted to digital values and stored in a manner which enables subsequent processing directed to improving the resolution of the received signals and to reduce the associated noise corresponding to the received data samples. The hull has a step toward the rear of the hull to transition from the V-shape to an essentially flat shape. The plant can be readily propagated by the use of cuttings and can be grown to advantage to provide colorful ornamentation in the landscape and in pots. The panel lies within an imaginary plane that intersects the imaginary rounded object.