Compounds are described which inhibit mitogen activated protein kinase-activated protein kinase-2. The power tool defines an air passageway and includes propelling means operative to induce air to flow through the passageway. The interconnected devices form a resource sharing group that includes a control member. Between the FPGAs, a communication path provides long distance communication. Additionally, the horseshoe frame structure allows for the connection of other electrical components such as a rear defrost system.