ABSTRACT
Polyurethane foam bandage (Lyoband) was compared with conventional cotton wool bandage of similar dimensions as a lining in below-knee walking plasters used for the immobilization of fractures of one malleolus. A device was designed to measure the potential space between the limb and the plaster and therefore the loosening of the cast. By virtue of its expansile nature, the Lyoband lining proved a considerably more satisfactory material than cotton wool bandage.
Subject(s)
Casts, Surgical , Gossypium , Bandages , Fracture Fixation/methods , Humans , PolyurethanesABSTRACT
Rainfall decreased dramatically in the Lake Turkana region 1.8-2.0 Myr ago and in the Olduvai Gorge region 0.5-0.6 Myr ago. This is documented by a major increase in the delta18O values of pedogenic and groundwater carbonates at these times. The data suggest that meteoric water of the earlier, more humid climate was 2-4 per mil lower in 18O content than modern waters of these regions.
