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.
Providone iodine is an antiseptic product used to disinfect skin. Povidone iodine is sometimes found in first aid kits. Povidone iodine is sometimes used as a mouthwash that people are expected to spit out after use.Povidone iodine is often used to disinfect minor cuts and scrapes.Povidone iodine is usually available through pharmacies.ome people may refer to this product as PVP-I for polyvinylpyrrolidone-iodine. It has a reddish to brown color and can stain skin and clothing. Some companies manufacture dry preparations of this compound for people to mix in solution as it is required. Packaged bottles of povidone iodine are also available.