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.
Example. To illustrate how bad debt is estimated using the allowance method, let's assume that CoolEZ Corp., a company that sells and services industrial heating and air conditioning systems, has sales of $650,000 and an accounts receivable balance of $210,000. Related Reading: How to Remove Bad Debt Expenses.