PAH
Encyclopedia
PAH or Pah may refer to:
In chemistry and biology:
In fiction:
Other:
In chemistry and biology:
- Polycyclic aromatic hydrocarbonPolycyclic aromatic hydrocarbonPolycyclic aromatic hydrocarbons , also known as poly-aromatic hydrocarbons or polynuclear aromatic hydrocarbons, are potent atmospheric pollutants that consist of fused aromatic rings and do not contain heteroatoms or carry substituents. Naphthalene is the simplest example of a PAH...
, one of a class of chemical compounds, organic pollutants - Phenylalanine hydroxylasePhenylalanine hydroxylasePhenylalanine hydroxylase is an enzyme that catalyzes the hydroxylation of the aromatic side-chain of phenylalanine to generate tyrosine. PheOH is one of three members of the pterin-dependent amino acid hydroxylases, a class of monooxygenase that uses tetrahydrobiopterin and a non-heme iron for...
, an enzyme involved in breaking down phenylalanine - Para-aminohippurate, a substance used in the measurement of blood flow in the kidneys
- Pulmonary arterial hypertension, a condition of elevated blood pressure in the pulmonary artery
- Primary alveolar hypoventilation, a condition of inadequate air movement in the lungs
- PAH world hypothesisPAH world hypothesisThe PAH world hypothesis is a speculative hypothesis that proposes that polycyclic aromatic hydrocarbons , assumed to be abundant in the primordial soup of the early Earth, played a major role in the origin of life by mediating the synthesis of RNA molecules, leading into the RNA world...
, hypothesis that proposes that the use of polycyclic aromatic hydrocarbon was a means for the origin of life - Poly(allylamine hydrochloride)Poly(allylamine hydrochloride)Poly is a cationic polyelectrolyte prepared by the polymerization of allylamine. It can be used in combination with an anionic polyelectrolyte like poly to form a layer-by-layer adsorbed film of negatively and positively charged polymers.Poly has many biomedical applications...
, Polyelectrolyte - PAH clearancePAH clearancePara aminohippurate clearance or PAH clearance is a method used in renal physiology to measure renal plasma flow, which, in turn, is a measure of renal function....
, para-aminohippuric acid clearance as a measurement of renal plasma flow - PolyanhydridesPolyanhydridesPolyanhydrides are a class of biodegradable polymers characterized by anhydride bonds that connect repeat units of the polymer backbone chain. Their main application is in the medical device and pharmaceutical industry. In vivo, polyanhydrides degrade into non-toxic diacid monomers that can be...
, a class of biodegradable polymers
In fiction:
- Pah, the lunar deity in Pawnee mythologyPawnee mythologyPawnee mythology is the body of myths and legends belonging to the Pawnee concerning their gods and heroes. The Pawnee are a federally recognized tribe of Native Americans, originally located on the Great Plains along tributaries of the Missouri River. They spoke a Caddoan language.-Beliefs and...
- Pah WraithPah WraithIn the fictional Star Trek universe, Pah Wraiths are the opposing force to the Bajoran Prophets. Non-corporeal life-forms, they were expelled from the Bajoran wormhole and imprisoned in the Bajoran Fire Caves on the planet Bajor...
, evil Bajoran Prophets in the fictional Star Trek universe
Other:
- Pan-American HighwayPan-American HighwayThe Pan-American Highway is a network of roads measuring about in total length. Except for an rainforest break, called the Darién Gap, the road links the mainland nations of the Americas in a connected highway system. According to Guinness World Records, the Pan-American Highway is the world's...
, Americas - PAH, the IATA airport code for Barkley Regional AirportBarkley Regional AirportBarkley Regional Airport is a public use airport located 12 nautical miles west of the central business district of Paducah, a city in McCracken County, Kentucky, United States. It is owned by the Barkley Regional Airport Authority...
in Paducah, Kentucky, USA - Another spelling for Pa (Māori)Pa (Maori)The word pā can refer to any Māori village or settlement, but in traditional use it referred to hillforts fortified with palisades and defensive terraces and also to fortified villages. They first came into being about 1450. They are located mainly in the North Island north of lake Taupo...
, word meaning a fortified village or redoubt - Project Affected Homes (World BankWorld BankThe World Bank is an international financial institution that provides loans to developing countries for capital programmes.The World Bank's official goal is the reduction of poverty...
term) - Pah!, a voice-controlled iPhone game
- Plants, Animals, and Humans an environmental organization