NYPD cop who sifted through ten tons of 9/11 debris says he saw a ghost 'trying to help' while searching for clues to identify victims from attacks at landfill, book reveals. 1  Sgt. Frank Marra, 48, said he saw ghost of African American woman, who was dressed in white as a Red Cross worker from Second World War.
oxygen debt. a state that arises in very active muscles when insufficient oxygen is supplied by the lungs, causing the muscle tissue to respire anaerobically with the production of LACTIC ACID. When muscular activities slow down, the rate and depth of breathing remains at a high level until the lactic acid has been oxidized.
Haemoglobin-based oxygen carriers are one of two main types of oxygen-carrying blood substitutes in development, the other one being perfluorocarbon emulsions (such as Fluosol). As of 2011 there are no haemoglobin-based oxygen carriers or perfluorocarbon emulsions approved for commercial use in North America or Europe. The only countries where these products are approved for general use is South Africa and Russia.