The stomach has an internal lining, or mucous membrane, called the gastric mucosa. The mucosa must create hydrochloric acid to break down food, but also protect itself from the acidic contents that it creates. This delicate balance is controlled by three different glands in the lining of the stomach.
The IMF, the SDR, and the Dollar: One Big Happy. The SDR is a fake currency issued by the International Monetary Fund. It was invented in 1969, the first year of the Nixon administration. It was a stop-gap measure to save the fixed exchange rate system of currencies, which came into existence in 1946, when the 1944 Bretton Woods system was implemented.
The SDR currency value is calculated daily (except on IMF holidays or whenever the IMF is closed for business) and the valuation basket is reviewed and adjusted every five years. Currency Amounts in New Special Drawing Rights (SDR) Basket.. IMF Rule O-2(a) defines the value of the U.S. dollar in terms of the SDR as the reciprocal of the sum of the equivalents in U.S. dollars of the amounts of the currencies in the SDR basket, rounded to six significant digits.