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Alpha
Wikipedia, the free encyclopedia - Cite This SourceAlpha may refer to:
The Greek letter alpha
Alpha (letter), a letter in the Greek alphabet. α may be used as the symbol for:- Angle of attack in aerodynamics
- Common-base current gain of a transistor in electronics
- In physics:
- Angular acceleration
- Fine-structure constant, a fundamental physical constant
- Alpha particle, form of particle radiation
- H-alpha, or H-α, an emission line created by hydrogen atoms
- The alpha carbon in organic chemistry
- The significance level in statistical hypothesis testing
- Alpha channel, describing transparency and opacity in computer graphics
- The alpha coefficient in evaluating financial returns
- Thermal diffusivity
- A symbol to denote Direct proportion, in mathematics
- In Astronomy (Bayer designation):
- The brightest star in a constellation.
- The first unit in a sequence.
Place names
Australia- Alpha, QueenslandUnited States
- Alpha, Illinois
- Alpha, Michigan
- Alpha, Minnesota
- Alpha, New Jersey
- Alpha, Ohio
- Alpha Ridge, AlaskaArctic Ocean
- Alpha Ridge, an undersea ridge
Media, literature and fiction
- Alpha (record label), a record label promoting the connection between music and art in CD packaging, focusing in early music and period instrument recordings.
- Alpha (band), a British electronic music group
- Alpha Books, an imprint of Penguin Group (USA)
- Alpha Comics, an American comic book publisher
- Alpha (Alice Nine album), an album by J-rock/Visual Kei band Alice Nine
- Alpha (Sevendust album), an album by the band Sevendust
- Alpha (album), an album by the band Asia
- Alpha Magazine, Australian men's sport magazine
- Alpha (computer), a fictional computer in Mike Walker's radio play Alpha
- Alpha (search engine), a search engine by Yahoo!
- Alpha (Magic: The Gathering), the first Magic: The Gathering cards set
- Alpha 5/Alpha 6/Alpha 7, nicknames of the characters in the Power Rangers television programs
- Alpha 60, a sentient computer in the film Alphaville
- Alpha TV, a Greek terrestrial channel
- ARC Trooper A-17, nicknamed "Alpha", a clone trooper from various Star Wars comics
- The highest social class in Aldous Huxley's novel Brave New World
- Moonbase Alpha, the primary setting for the television series Space: 1999
- Alpha (DC Comics), a character from DC Comics
- Alpha the Ultimate Mutant, a character featured in Marvel Comics
- Alpha (planet) in Isaac Asimov's novel Foundation and Earth
- Alpha (known as Proto in Japan) is the glitched prototype of the Internet and final boss of the video game MegaMan Battle Network 3
- Alpha (song), instrumental by Vangelis
- In the Earthbound, or Mother, series of Nintendo RPG games by Shigesato Itoi, α (along with other Greek letters) is used as a classification of the strength of a PSI technique.
Science and mathematics
- Alpha Centauri, the brightest star system in the southern constellation of Centaurus
- Alpha (biology), "alpha male" and "alpha female", the highest ranking individuals in a community of social animals
- Alpha (investment), a measurement of risk-adjusted performance
- Alpha waves, recorded by electroencephalography
- Cronbach's alpha, a statistical measure of reliability
- ALPHA, the Antihydrogen Laser PHysics Apparatus, an experiment at CERN.
- Another term for the angle of attack on an aircraft's wing.
Computing
- Alpha (machine learning), the degree to which a learning agent takes into account new information
- ALPHA refers to the set of ASCII characters A-Z and a-z, as defined in RFC 4234
- The ALPHA programming language
- Alpha, a development stage of software
- DEC Alpha, a microprocessor/central processing unit (CPU)
- AlphaServer - DEC now HP machine successor to the VAX
- AlphaStation - DEC now HP workstation successor to the VAX
Other
- Alpha chapter, the original or first chapter of a Greek letter society that has multiple chapters across different college or university campuses.
- Latin alpha, an open front unrounded vowel
- Space Station Alpha, the original name and unofficial call sign for the International Space Station
- The first letter in the NATO phonetic alphabet
- Service "A", one of the uniforms of the United States Marine Corps
- Alpha (radio navigation), a Russian radio navigation system similar to the former Omega Navigation System
- Alpha 2000, a light aircraft built in New Zealand
- Alpha Group, a dedicated counter-terrorism unit that belonged to OSNAZ
- Alpha class submarine, a Russian fast attack nuclear submarine
- Alpha course, an introductory course in Christianity
- Sony α or Sony Alpha, a digital SLR series by Sony
- Minolta α or Minolta Alpha, the Japanese name for a series of SLR cameras known as Maxxum or Dynax elsewhere, and predecessor to Sony's brand of the same name
- Tropical Storm Alpha (2005)
- Alpha Industries, clothing company
- Canada Association for Learning & Preserving the History of WWII in Asia, organization
- Alpha quadra, in Socionics
- H3 Alpha, a variant of the Hummer H3 SUV.
- Alpha Legion, a Chaos Space Marines company from Warhammer 40,000.
- Alpha is the primal Internet in the video game Megaman Battle Network 3.
- Alpha Amplifier
is a USA company that has manufactured the finest amateur radio amplfiers in the world for over 30 years.
See also
Alpha in financial terms: Expected return not explained by movements in the market. Alpha is usuallymeasured as the excess return of an investment above its benchmark. A positive alpha isthe extra return awarded to the investor for taking active risk, instead of accepting themarket (benchmark) return
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Last updated on Sunday March 09, 2008 at 17:47:00 PDT (GMT -0700)
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