In 1970, the number of HMOs declined to fewer than 40. Paul M. Ellwood, Jr., often called the father of the HMO, began having discussions with what is today the U.S. Department of Health and Human Services that led to the enactment of the Health Maintenance Organization Act of 1973.
How is Nutrient Broth (microbiology) abbreviated? NB stands for Nutrient Broth (microbiology). NB is defined as Nutrient Broth (microbiology) very rarely.
Nitrile rubber. Nitrile rubber, also known as Buna-N, Perbunan, or NBR, is a synthetic rubber copolymer of acrylonitrile and butadiene.Trade names include Nipol, Krynac and Europrene. Nitrile butadiene rubber is a family of unsaturated copolymers of 2-propenenitrile and various butadiene monomers.t is used in the nuclear industry to make protective gloves. NBRâs ability to withstand a range of temperatures from -40 Â°C to +108 Â°C makes it an ideal material for aeronautical applications. Nitrile butadiene is also used to create moulded goods, footwear, adhesives, sealants, sponges, expanded foams, and floor mats.