A virtual connection queue and a packet queue are provided in an ATM switch. The compartment may be nested atop a cap that covers the dispenser of the container or may be otherwise associated with the container in a secure but temporary and accessible manner. The devices can be used to operate sensors that monitor the transmission lines or parameters of the power distribution system, such as current, line temperature, vibration, and the like. In an embodiment, capsules containing a core of sperm in a semen extender are formed as a mixture having membranes of different thicknesses to provide varying time of sperm release.