Novel compounds composition capable of inhibiting TNF\u03b1 and having antiimmunionflammatory and autoimmune properties useful in a pharmaceutical composition, such as for a drug containing this as an active ingredient; and a therapeutic method with the use of these novel compounds. A tensioning device enables the user to adjust the resistance to his or her swing, increasing resistance to strengthen muscles used while executing the preferred swing. A receiver may be configured to receive the power signal and the data signal and determine a reference signal based on the received signal. The emitter layer has a carrier concentation of 1.