Studies on air infiltration rates in Australia have been few. One study measured 'natural' infiltration rates in unoccupied houses in Melbourne and found that background infiltration rates were 0.33 air exchanges per hour (ACH) (Biggs et. al.1987).ata. Studies on air infiltration rates in Australia have been few. One study measured 'natural' infiltration rates in unoccupied houses in Melbourne and found that background infiltration rates were 0.33 air exchanges per hour (ACH) (Biggs et. al. 1987).
Doctor of Osteopathic Medicine (D.O. or DO) is a professional doctoral degree for physicians and surgeons offered by medical schools in the United States.
Doctor of osteopathic medicine. A doctor of osteopathic medicine (D.O.) is a physician licensed to practice medicine, perform surgery, and prescribe medication. Like all allopathic physicians (or MDs), osteopathic physicians complete 4 years of medical school and can choose to practice in any specialty of medicine. However, osteopathic physicians receive an additional 300 to 500 hours in the study of hands-on manual medicine and the body's musculoskeletal system.