Simpson explores the history and issues surrounding the Hetch Hetchy dam at Yosemite National Park, which was built to supply San Francisco with water and power even though the site was already protected within the national park.
Dapsone, also known as diaminodiphenyl sulfone (DDS), is an antibiotic commonly used in combination with rifampicin and clofazimine for the treatment of leprosy.ral dapsone was one of the first medications used to treat moderate to severe acne vulgaris, and is still occasionally prescribed for the treatment of severe cases. A topical form of dapsone is also effective with potentially less side effects.
Diammonium Phosphate Diammonium phosphate (DAP) is the worldâs most widely used phosphorus (P) fertilizer. It is made from two common constituents in the fertilizer industry and it is popular because of its relatively high nutrient content and its excellent physical properties.Production Ammonium phosphate fertilizers first became available in the 1960s and DAP rapidly became the most popular in this class of products.t is made from two common constituents in the fertilizer industry and it is popular because of its relatively high nutrient content and its excellent physical properties. Production Ammonium phosphate fertilizers first became available in the 1960s and DAP rapidly became the most popular in this class of products.