The invention is directed to an expandable stent for implanting in a body lumen, such as a coronary artery, peripheral artery, or other body lumen. The method for transmitting data involves allocating a first node set containing a plurality of nodes for the transmission of downlink signals and a second node set containing a plurality of nodes for the reception of uplink signals, and communicating with a terminal through the first node set and the second node set. The ideal treatment is one that hinders or arrests the progression of the disease averting articular collapse and a joint replacement surgery. Also disclosed is a high coercivity hard bias stack structure, a magnetic read head for a disk drive having a high coercivity hard bias stack structure and a method for fabricating a coercivity hard bias layer for a magnetic read head. The trowel further comprises a handle coupled to the sheet at the trailing edge. The sidewalls can also be designed for lifting by a claw lifting apparatus.