The present invention provides a method of treating a skin ailment including administering to a subject in need thereof, a therapeutically effective amount of a composition including a primary diamine; a secondary aromatic diamine; a polyisocyanate; and optionally, a polyol. The system includes a light source that delivers electromagnetic energy in a predetermined range of wavelengths to the sample and a sensor that senses an intensity spectrum which emerges from the sample when the sample is illuminated by the light source. C-shaped elastically flexible arms are integrally engaged with the expander and with the jacking nut so that rotation of the jacking bolt enables the jacking nut to move toward the expander forcing the C-shaped arms to bow outwardly into contact with the conduit for gripping it. Each pair of one of the first terminations and the corresponding one of the second terminations is disposed on the same side of the renovation terminal block and is electrically isolated from at least one adjacent pair of another one of the first terminations and a corresponding one of the second terminations. A write current passes through the giant magnetoresistance cell to switch the giant magnetoresistance cell between a high resistance state and a low resistance state. The player is awarded a bonus payout according to a predetermined payout table if the player’s cards form at least one of a plurality of predetermined combinations and the player has made a corresponding wager prior to any cards being dealt.