A method is described to assay for protein interactions in living cells, e. The support structure may be separate from the paint mixer and may include sliding as well as pivoting movement between the arms and the support structure. The basketball system also includes a backboard mounted to the pole and a rim mounted to the backboard. 45 GHz, and preferably operates electrostatically and electromagnetically. The datalink layer includes a common data queue for storing traffic passing through the communication link and the network layer includes a first queue for storing data associated with first traffic having a requested quality of service QoS and a logically separate second queue for storing data associated with second traffic not having a requested quality of service.