Economy of ChittagongArsenic biochemistry: Arsenic biochemistry refers to biochemical processes that can use arsenic or its compounds, such as arsenate. Arsenic is a moderately abundant element in Earth's crust, and although many arsenic compounds are often considered highly toxic, a wide variety of organoarsenic compounds are produced biologically and various organic and inorganic arsenic compounds are metabolized by numerous organisms.Casing hanger: In petroleum production, the casing hanger is that portion of a wellhead assembly which provides support for the casing string when it is lowered into the wellbore. It serves to ensure that the casing is properly located.Cholera outbreaks and pandemics: Although much is known about the mechanisms behind the spread of cholera, this has not led to a full understanding of what makes cholera outbreaks happen some places and not others. Lack of treatment of human feces and lack of treatment of drinking water greatly facilitate its spread.Public water systemCongenital chloride diarrhea: Congenital chloride diarrhea (CCD, also congenital chloridorrhea or Darrow Gamble syndrome) is a genetic disorder due to an autosomal recessive mutation on chromosome 7. The mutation is in downregulated-in-adenoma (DRA), a gene that encodes a membrane protein of intestinal cells.Dorjee KhanduTioman virus: Tioman virus is a paramyxovirus first isolated from the urine of island fruit bats (Pteropus hypomelanus) on Tioman Island, Malaysia in 2000. The virus was discovered during efforts to identify the natural host of Nipah virus which was responsible for a large outbreak of encephalitic illness in humans and pigs in Malaysia and Singapore in 1998-99.Maternal Health Task ForceEl Tor: El Tor is the name given to a particular strain of the bacterium Vibrio cholerae, the causative agent of cholera. Also known as V.Lucas paradox: In economics, the Lucas paradox or the Lucas puzzle is the observation that capital does not flow from developed countries to developing countries despite the fact that developing countries have lower levels of capital per worker.}}Timeless Secret: Timeless Secret is a line of anti-aging skin-care products sold by home delivery. They’re advertised on infomercials featuring former Entertainment Tonight host Julie Moran.Bacillary dysenteryFlood: A flood is an overflow of water that submerges land which is usually dry.MSN Encarta Dictionary.