Alpha is the first letter of the Greek alphabet. Alpha or ALPHA may also refer to:-Science:*Alpha , the highest ranking individuals in a community of social animals...

(Α or α) is the first letter of the Greek alphabet. Alpha or ALPHA may also refer to:

  • Alpha (ethology) (also "alpha male" and "alpha female"), the highest ranking individuals in a community of social animals
  • Alpha carbon in organic chemistry
  • ALPHA Collaboration, (Antihydrogen Laser PHysics Apparatus), a team of scientists
  • ALPHA, a particle physics experiment at CERN
    The European Organization for Nuclear Research , known as CERN , is an international organization whose purpose is to operate the world's largest particle physics laboratory, which is situated in the northwest suburbs of Geneva on the Franco–Swiss border...

  • Alpha particle
    Alpha particle
    Alpha particles consist of two protons and two neutrons bound together into a particle identical to a helium nucleus, which is classically produced in the process of alpha decay, but may be produced also in other ways and given the same name...

    , form of particle radiation
  • Alpha helix
    Alpha helix
    A common motif in the secondary structure of proteins, the alpha helix is a right-handed coiled or spiral conformation, in which every backbone N-H group donates a hydrogen bond to the backbone C=O group of the amino acid four residues earlier...

    , a common motif in the secondary structure of proteins
  • Alpha taxonomy
    Alpha taxonomy
    Alpha taxonomy is the discipline concerned with finding, describing and naming species of living or fossil organisms. This field is supported by institutions holding collections of these organisms, with relevant data, carefully curated: such institutes include natural history museums, herbaria and...

    , the science of naming organisms
  • Alpha wave
    Alpha wave
    Alpha waves are neural oscillations in the frequency range of 8–12 Hz arising from synchronous and coherent electrical activity of thalamic pacemaker cells in humans...

    s, recorded by electroencephalography
  • H-alpha
    H-alpha is a specific red visible spectral line created by hydrogen with a wavelength of 656.28 nm, which occurs when a hydrogen electron falls from its third to second lowest energy level...

    , or H-α, an emission line created by hydrogen atoms
  • α, a symbol for the angle of attack
    Angle of attack
    Angle of attack is a term used in fluid dynamics to describe the angle between a reference line on a lifting body and the vector representing the relative motion between the lifting body and the fluid through which it is moving...

     in aerodynamics
  • α, a symbol for angular acceleration
    Angular acceleration
    Angular acceleration is the rate of change of angular velocity over time. In SI units, it is measured in radians per second squared , and is usually denoted by the Greek letter alpha .- Mathematical definition :...

     in physics
  • α, a symbol for common-base current gain of a transistor
    A transistor is a semiconductor device used to amplify and switch electronic signals and power. It is composed of a semiconductor material with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor's terminals changes the current...

     in electronics
  • α, a symbol for thermal diffusivity
    Thermal diffusivity
    In heat transfer analysis, thermal diffusivity is the thermal conductivity divided by density and specific heat capacity at constant pressure. It has the SI unit of m²/s...

     in thermodynamics
  • α, a symbol for coefficient of thermal expansion in thermodynamics
  • α, a symbol for the fine-structure constant
    Fine-structure constant
    In physics, the fine-structure constant is a fundamental physical constant, namely the coupling constant characterizing the strength of the electromagnetic interaction. Being a dimensionless quantity, it has constant numerical value in all systems of units...

     in physics
  • Alpha, the brightest star in a constellation according to the Bayer designation
    Bayer designation
    A Bayer designation is a stellar designation in which a specific star is identified by a Greek letter, followed by the genitive form of its parent constellation's Latin name...

  • Alpha (investment)
    Alpha (investment)
    Alpha is a risk-adjusted measure of the so-called active return on an investment. It is the return in excess of the compensation for the risk borne, and thus commonly used to assess active managers' performances...

    , a measurement of risk-adjusted performance
  • Cronbach's alpha
    Cronbach's alpha
    Cronbach's \alpha is a coefficient of reliability. It is commonly used as a measure of the internal consistency or reliability of a psychometric test score for a sample of examinees. It was first named alpha by Lee Cronbach in 1951, as he had intended to continue with further coefficients...

    , a statistical measure of reliability
  • α, a symbol for one of the Feigenbaum constants
    Feigenbaum constants
    The Feigenbaum constants are two mathematical constants named after the mathematician Mitchell Feigenbaum. Both express ratios in a bifurcation diagram.The first Feigenbaum constant ,...

     describing a bifurcation diagram, in mathematics
  • α, a symbol representing the probability of a type I error
    Type I and type II errors
    In statistical test theory the notion of statistical error is an integral part of hypothesis testing. The test requires an unambiguous statement of a null hypothesis, which usually corresponds to a default "state of nature", for example "this person is healthy", "this accused is not guilty" or...

     in statistics
  • α, a symbol for navigational azimuth
  • α, the conventional symbol for angular eccentricity
    Angular eccentricity
    In the study of ellipses and related geometry, various parameters in the distortion of a circle into an ellipse are identified and employed: Aspect ratio, flattening and eccentricity....

  • Alpha, California
    Alpha, California
    Alpha is a former settlement in Nevada County, California. Alpha is located south-southeast of Washington. It is situated at an elevation of above sea level. Alpha had a post office during the period of 1855-1862....

  • Alpha, Illinois
    Alpha, Illinois
    Alpha is a village in Henry County, Illinois, United States. The population was 671 at the 2010 census, down from 726 at the 2000 census.-History:...

  • Alpha, Iowa
    Alpha, Iowa
    Alpha is an unincorporated community in Fayette County, Iowa, United States. It is located on Johnsons Mill Road near County Road V68, three miles south of Waucoma, at 42.995718N, -92.047995W, where Johnsons Mill Road crosses Crane Creek.-History:...

  • Alpha, Kentucky
    Alpha, Kentucky
    Alpha is an unincorporated community in Clinton County, Kentucky, United States. It lies along Route 90 northeast of the city of Albany, the county seat of Clinton County. Its elevation is 1,014 feet , and it is located at . Although it is unincorporated, it has a post office, with the ZIP...

  • Alpha, Michigan
    Alpha, Michigan
    Alpha is a village in Iron County of the U.S. state of Michigan. As of the 2000 census, the village population was 198. The village is in Mastodon Township. The Alpha post office opened with the name Mastodon on October 1, 1883 and was discontinued on December 20, 1888...

  • Alpha, Minnesota
    Alpha, Minnesota
    Alpha is a city in Jackson County, Minnesota, United States. The population was 116 at the 2010 census.-Geography:According to the United States Census Bureau, the city has a total area of , all of it land.-Demographics:...

  • Alpha, New Jersey
    Alpha, New Jersey
    Alpha is a borough in Warren County, New Jersey, United States. As of the United States 2010 Census, the borough population was 2,369.Alpha was incorporated as a borough by an Act of the New Jersey Legislature and signed by Governor Woodrow Wilson on June 26, 1911, from portions of Pohatcong...

  • Alpha, Ohio
    Alpha, Ohio
    Alpha is a neighborhood of the city of Beavercreek, in Greene County, Ohio, in the United States. It is located on the eastern side of the Dayton metropolitan area. A post office is located in Alpha, with the ZIP code of 45301....

  • Alpha, Tennessee
    Alpha, Tennessee
    Alpha is an unincorporated community in Hamblen County, Tennessee. It is located at and around the junction of Highway 11-E and Tennessee State Route 160 between Morristown and Jefferson City....

  • Alpha, Texas
    Alpha, Texas
    Alpha was an unincorporated freedmen's town in Dallas County, Texas, United States. Founded soon after the American Civil War, the town peaked in the 1890s then dwindled in population throughout the 20th century before being delisted as a community in 1987...

  • Alpha, Washington
    Alpha, Washington
    Alpha is an unincorporated community located in Lewis County, Washington about 3.5 miles away from Cinebar. Due to its rural setting with little settlement concentration, it did not meet qualifications as a Census Designated Place, a program used by the U.S. Census Bureau for unincorporated...

  • Alpha, Wisconsin
    Alpha, Wisconsin
    Alpha is an unincorporated community in western Burnett County in the northwestern corner of the U.S. state of Wisconsin. The community is in the town of Wood River, which had a population of 974 at the 2000 census. There are fewer than a dozen households in within the community.-History:Alpha was ...

  • Alpha Ridge, Alaska
    Alpha Ridge, Alaska
    The Alpha Ridge is a mountain ridge in Denali Borough, Alaska, United States. Elevation: 3,420 feet.It is on the west side of the Kantishna Valley in the Denali National Park...

  • Alpha TV
    Alpha TV
    Alpha TV is a Greek terrestrial channel . The station features a mix of Greek and foreign shows with an emphasis on entertainment programs. The studios are located near Athens...

    , a Greek terrestrial channel
  • The Alpha Quadrant, one of the four Galactic Quadrants in the fictional Star Trek universe
  • Alphas
    Alphas is an American science fiction dramatic television series created by Zak Penn and Michael Karnow. The series follows a group of people with superhuman abilities, known as "Alphas", as they work to prevent crimes committed by other Alphas....

    , a Syfy
    Syfy , formerly known as the Sci-Fi Channel and SCI FI, is an American cable television channel featuring science fiction, supernatural, fantasy, reality, paranormal, wrestling, and horror programming. Launched on September 24, 1992, it is part of the entertainment conglomerate NBCUniversal, a...

     television series

  • Alpha (Alice Nine album)
    Alpha (Alice Nine album)
    Alpha is the second full-length studio album from visual kei rock band Alice Nine. It was released on the November 28th, 2007. Alpha includes 12 tracks, 4 of which were previously released as singles...

    , by the band Alice Nine
  • Alpha (Asia album)
  • Alpha (band)
    Alpha (band)
    Alpha is a trip hop/electronica group, comprising founding member Corin Dingley, vocalist and lyricist Wendy Stubbs and Hannah Collins; other founding member, Andy Jenks, left the group before the release of their 2007 LP "The Sky Is Mine"...

    , a British electronic music group
  • Alpha (Selena album)
    Alpha (Selena album)
    Alpha is the third album released by Selena Y Los Dinos, the second album from after The New Girl in Town, which was released in 1985. When Selena was beginning to emerge as a star, A.B. III became a songwriter and producer. One of his first songs, "Dame Un Beso" became a moderate success...

  • Alpha (Sevendust album)
    Alpha (Sevendust album)
    Target Exclusive Bonus TrackU.K. Import Bonus Tracks- Album :- Singles :- Personnel :* Lajon Witherspoon – lead vocals* John Connolly – guitar, backing vocals* Vinnie Hornsby – bass guitar* Morgan Rose – drums, backing vocals...

    , by the band Sevendust
  • "Alpha", one of the tracks on the album Albedo 0.39
    Albedo 0.39
    Albedo 0.39 is an album by the artist Vangelis, released in 1976. It is a concept album around space and space physics.Albedo 0.39 was the second album produced by Vangelis in Nemo Studios, London, which was his creative base until the late 1980s...

    , composed by Vangelis
  • ALPHA 60
    ALPHA 60
    ALPHA 60 is an alternative rock band from Uppsala, Sweden, formed in 2008. Their name is a reference to the 1965 noir classic Alphaville; Alpha 60 being the computer controlling Godard's dystopian city.-History:...

    , a Swedish alternative rock band

  • Alpha (magazine), Australian men's sport magazine
  • Alpha Books
    Alpha Books
    Alpha Books, a member of Penguin Group, is an American publisher best known for their Complete Idiot's Guides series. It began as a division of Macmillan. Pearson Education acquired Macmillan General Reference from Simon & Schuster in 1999...

    , an imprint of Penguin Group (USA)
  • Alpha Knightmare Frame
    Knightmare Frame
    , or simply Knightmares, officially designated as the Humanoid Autonomous Armored Knight, are a form of mecha in the Sunrise anime series Code Geass: Lelouch of the Rebellion. In the series, they were developed by the Holy Britannian Empire...

    , used by the "Irregulars" in the manga version of Code Geass: Lelouch of the Rebellion
  • The Alphas, a young-adult novel by Lisi Harrison

  • Alpha (Magic: The Gathering)
    Alpha (Magic: The Gathering)
    The name Alpha refers to the first print run of the original Magic: The Gathering Limited Edition, the first Magic: The Gathering card set. It premiered in a limited release at Origins Game Fair in 1993, with a general release that August. Its print run of 2.6 million cards sold out very quickly...

    , the first Magic: The Gathering cards set
  • Alpha (video game), a 1986 interactive fiction game by Square
  • Alpha Metroids, the first evolution of the Metroid species from the game Metroid II: Return of Samus
    Metroid II: Return of Samus
    is an action-adventure video game, the second game in the Metroid series, and the only one developed for the Nintendo Game Boy. The sixth installment in the overall series story, the game was developed by Nintendo Research & Development 1 , and published by Nintendo in North America in November...

  • AlphaDream‎, a second-party video game developer for Nintendo
  • Arceus
    is a Pokémon species in Nintendo and Game Freak's Pokémon franchise. Created by Ken Sugimori, Arceus first appeared in the video games Pokémon Diamond and Pearl, later appearing in various merchandise, spinoff titles and animated and printed adaptations of the franchise.-Concept and...

     from the Pokémon
    is a media franchise published and owned by the video game company Nintendo and created by Satoshi Tajiri in 1996. Originally released as a pair of interlinkable Game Boy role-playing video games developed by Game Freak, Pokémon has since become the second most successful and lucrative video...

     Universe is known as the Alpha Pokémon
  • Omicron Alpha, a star system in the Freelancer (video game)
    Freelancer (video game)
    Freelancer is a space trading and combat simulation video game developed by Digital Anvil and published by Microsoft Game Studios. The game was initially announced by Chris Roberts in 1999, and following many production schedule mishaps and a buyout of Digital Anvil by Microsoft, it was eventually...

  • Alpha (computer)
    Alpha (computer)
    Alpha is the name of a fictional computer in Mike Walker's radio drama of the same name.Alpha has been broadcast several times over the past few years on BBC7 as part of a pair of plays, Alpha and Omega....

    , a fictional computer in Mike Walker's radio play Alpha
  • Alpha (comics), a character from DC Comics
  • Alpha (planet) in Isaac Asimov's novel Foundation and Earth
  • Alpha 5
    Alpha 5
    Alpha 5 is a fictional robot on the Mighty Morphin Power Rangers television series. On Alpha's chest is a yellow stylized lightning bolt similar to the Power Rangers' lightning bolt symbol, but inverted. His head is in the shape of a golden flying saucer with a visor that flashes when he is speaking...

    /Alpha 6/Alpha 7, nicknames of the characters in the Power Rangers television programs
  • Alpha Legion, a Chaos Space Marines Legion from Warhammer 40,000
  • Alpha the Ultimate Mutant
    Alpha the Ultimate Mutant
    Alpha the Ultimate Mutant is a fictional character in the Marvel Comics universe.-Publication history:Alpha the Ultimate Mutant first appeared in Defenders #15–16 , and was created by Len Wein and Sal Buscema....

    , a character featured in Marvel Comics
  • Moonbase Alpha
    Moonbase Alpha
    Moonbase Alpha is a fictional moon base and the main setting in the science fiction television series Space: 1999.-Moonbase Alpha:Located in the Moon crater Plato and constructed out of quarried rock and ores, Moonbase Alpha is four kilometres in diameter and extends up to one kilometre in areas...

    , the primary setting for the television series Space: 1999
  • Alphas, people of the highest intelligence (and social strata) in Aldous Huxley's Brave New World
    Brave New World
    Brave New World is Aldous Huxley's fifth novel, written in 1931 and published in 1932. Set in London of AD 2540 , the novel anticipates developments in reproductive technology and sleep-learning that combine to change society. The future society is an embodiment of the ideals that form the basis of...

  • Alpha AI/Leonard L.