An environmentally sealed wiring device with removable weather-resistant cover includes a wiring device with a device housing, a shoulder extending from the device housing and a sealing element disposed about the shoulder. The in vivo device includes at least one signal transmitter and at least one signal receiving unit. The microorganism of the invention can also be used as a feed additive or a good additive. The network elements in the first network domain and the second network domain insert the handover charging identifier and other context information in online charging requests that are transmitted to an online charging system. Use of neuregulin, neuregulin polypeptide, neuregulin derivatives, or compounds which mimic the activities of neuregulins in the treatment or management of heart disease and heart failure in a mammal. The system also includes interconnection members with one end connected to the support frame and a second end connected to the truck frame.