The present invention relates to adhesive and sealant compositions in non-flowable form. The radio transceiver provides, on a single semiconductor integrated circuit, a receiver circuit or path for each of a plurality of antennas and a transmit circuit or path for each of the plurality of antennas. An adequate entraining mechanism is provided in order to ensure the traveling motion of the guiding carriages. The computing device determines if the risk level of a group is low-risk based on the risk level of the plurality of access entitlements of the group, and in response to determining the risk level of the group is low risk, the computing device enables approval of the plurality of access entitlements of the group. In a particular embodiment, the hermetic layer is a metal which is electrically coupled to a conductive layer adjacent to the microshell to electrically ground the microshell.