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All articles starting with Q

2,252 articles

General

Q

Q, seventeenth letter of the Latin alphabet, from Phoenician qoph via Greek koppa and Etruscan; used in English almost only as qu, rare in text, U+0051 in Unicode, 10 points in Scrabble.

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Q (drag queen)

Q (Robert Crone, born 1996) is an American drag performer and seamstress from Kansas City who placed 4th on RuPaul's Drag Race season 16, disclosed her HIV status on the show, and later competed on Project Runway season 22.

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Q (James Bond)

Q is the fictional MI6 quartermaster and gadget master of the James Bond films, created for the screen from Fleming's Q Branch and Major Boothroyd; played by Peter Burton, Desmond Llewelyn (17 films), John Cleese, and Ben Whishaw.

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Q (magazine)

Q magazine: British monthly music magazine, originally "Cue", launched October 1986 by David Hepworth and Mark Ellen for Emap Metro, Britpop-era market leader, peak circulation over 200,000 in 2001, closed July 2020 under Bauer Media.

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Q (New York City Subway service)

The Q, or Brighton Local via Broadway Express, is a New York City Subway service from 96th Street on Second Avenue to Coney Island–Stillwell Avenue, Brooklyn.

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Q (novel)

Q (novel), Italian historical novel by Roberto Bui, Giovanni Cattabriga, Federico Guglielmi, and Luca Di Meo as Luther Blissett (later Wu Ming), published March 1999. Set 1517-1555 Reformation Europe; an Anabaptist heretic is pursued by Vatican agent Q; over a million copies sold in Italy.

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Q (number format)

Q is a notation for fixed-point binary numbers, devised by Texas Instruments, in which Qm.n names m integer bits and n fractional bits, fixing an implicit scaling factor.

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Q (Star Trek)

Q (Star Trek): omnipotent trickster played by John de Lancie, debuted in TNG's 'Encounter at Farpoint' (1987), member of the Q Continuum, put humanity on trial, introduced the Borg in 'Q Who', and returned in Picard season 2.

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Q & A (1990 film)

Q & A (1990) is a Sidney Lumet crime drama adapted from Edwin Torres's novel, starring Nick Nolte as racist NYPD detective Mike Brennan and Timothy Hutton as assistant DA Al Reilly investigating a staged justifiable homicide; released April 27, 1990, 132 minutes, Tri-Star.

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Q & A (novel)

Q & A is Vikas Swarup's 2005 debut novel about Ram Mohammad Thomas, an orphan jailed after winning the quiz show Who Will Win a Billion?; it inspired the 2008 film Slumdog Millionaire.

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Q Chief

Q Chief, born Abubakar Shaaban Katwila and once known as Q Chillah, is a Tanzanian Bongo Flava singer-songwriter identified as one of the genre's pioneers.

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Q clearance

Q clearance is the U.S. Department of Energy's Q access authorization, roughly equivalent to a Top Secret clearance, permitting need-to-know access to Restricted Data, Formerly Restricted Data, National Security Information, and special nuclear material.

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Q code

The Q code, also known as a Q signal, is a standardized three-letter abbreviation for radiotelegraph phrases, developed by Britain around 1909 and internationally adopted in 1912.

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Q cycle

Q cycle: Mitchell's 1975 mechanism for cytochrome bc1 (complex III) and b6f complexes, in which bifurcated quinol oxidation at the Qo site and quinone recycling at the Qi site pump protons to build a proton motive force.

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Q factor

The Q factor (quality factor) is a dimensionless parameter measuring how weakly damped a resonator is: the ratio of stored energy to energy dissipated per cycle, or resonance frequency divided by bandwidth.

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Q fever

Q fever, a zoonotic disease caused by Coxiella burnetii, spread mainly by aerosols from livestock birthing fluids; worldwide except New Zealand, causing acute febrile illness and chronic endocarditis in humans.

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Q Lazzarus

Q Lazzarus was the stage name of American singer Diane Luckey (1960-2022), whose William Garvey-written song "Goodbye Horses" appeared in Married to the Mob and The Silence of the Lambs; she vanished in the mid-1990s and was rediscovered in 2019.

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Q Manivannan

Q Manivannan (born 1996 or 1997, Tamil Nadu) is a Scottish Greens MSP for Edinburgh and Lothians East since May 2026, elected on a student visa under the 2025 representation act, one of Holyrood's first openly trans MSPs.

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Q methodology

Q methodology is a research method introduced by William Stephenson in 1935 in which participants rank-order statements and by-person factor analysis reveals the group's shared subjective viewpoints.

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Q source

Q source, also called the Q document or Q Gospel, is a hypothetical lost sayings collection of Jesus, posited to explain material Matthew and Luke share without Mark.

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Q value (nuclear science)

The Q value in nuclear science is the energy released or absorbed in a nuclear reaction or decay, positive for exothermic processes and negative for endothermic ones.

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Q-analog

A q-analog, also called a q-analog or q-deformation, is a mathematical expression or identity parameterized by q that reduces to a known classical object when q is set to 1.

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Q-dance

Q-dance is a Dutch event organizer and promoter of harder dance styles, above all hardstyle, founded in 1999, credited with coining the term "hardstyle", and best known for Defqon.1 and Qlimax.

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Q-Force

Q-Force: Netflix adult animated LGBTQ+ spy comedy created by Gabe Liedman, premiered September 2, 2021, ten episodes, starring Sean Hayes as Agent Mary; canceled after one season.

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Q-Former (querying transformer)

The Q-Former, or Querying Transformer, is a small BERT-initialized adapter introduced in BLIP-2 in 2023 to compress image features into 32 tokens for a frozen language model.

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Q-learning

Q-learning is a model-free reinforcement learning algorithm in which an agent learns to act optimally by trial and error, introduced by Christopher Watkins at Cambridge in 1989.

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Q-Pochhammer symbol

The q-Pochhammer symbol (a;q)n, also called the q-shifted factorial, is the q-analog of the Pochhammer symbol, a finite product that becomes an infinite product building block of q-series and partition generating functions.

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Q-ship

The Q-ship, also known as a Q-boat, was a warship disguised as an unarmed merchant vessel, used by the British and French navies from 1914 to destroy submarines.

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Q-sort

A Q-sort is a research procedure in which participants rank-order a shared set of statements on cards from agreement to disagreement, the data-collection step of Q methodology for studying subjectivity.

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Q-space trajectory imaging

Q-space trajectory imaging (QTI) is a diffusion MRI method that uses time-varying gradients and a tensor distribution model to measure tissue microstructure properties like microscopic anisotropy.