All articles starting with Q
2,252 articles
Quobly
Quobly, formerly Siquance, is a French quantum computing startup in Grenoble founded in 2022 as a CEA-Leti and CNRS spin-off, building silicon spin-qubit chips in STMicroelectronics' commercial fab.
Quốc âm thi tập
Quốc âm thi tập (國音詩集, "Collection of poems in the national sound") is the earliest surviving collection of Vietnamese-language poetry, 254 chữ Nôm poems attributed to the 15th-century statesman Nguyễn Trãi.
Quoc su vien
Quoc su vien (Quốc sử viện) was the history bureau of the Tran dynasty of Vietnam, which produced the first official national history in 1272.
Quoc trieu kham tung dieu le
Quoc trieu kham tung dieu le (Quốc triều khám tụng điều lệ) is a Vietnamese code of litigation procedure promulgated in 1777 under King Le Hien Tong.
Quoc Tu Giam
Quoc Tu Giam (Quốc Tử Giám), the Imperial Academy, was Vietnam's first national university, founded in 1076 in Hanoi to train officials for the court.
Quoin Pharmaceuticals, Ltd.
Quoin Pharmaceuticals, Ltd. (Nasdaq: QNRX) is a pre-revenue clinical-stage pharmaceutical company in Ashburn, Virginia, founded by Michael Myers and Denise Carter, developing QRX003 for Netherton Syndrome.
Quokka
Quokka (Setonix brachyurus), a small Vulnerable wallaby endemic to south-west Western Australia, famous on Rottnest Island; largest subpopulation 8,000–12,000 there, threatened by foxes, cats, feral pigs, and a drying climate.
Quoll
Quoll (genus Dasyurus): six species of carnivorous marsupials, four in Australia and two in New Guinea, named from Captain Cook's 1770 record of the Aboriginal name; spotted-tailed quoll is the largest mainland carnivorous marsupial, eastern quoll extinct on the mainland since the 1960s.
Quona Capital
Quona Capital is a venture capital firm focused on inclusive fintech in emerging markets, incubated inside Accion and made independent in 2015 by three microfinance veterans.
Quonset hut
A Quonset hut is a lightweight prefabricated building with a semi-cylindrical corrugated steel shell, developed by the US Navy in 1941 and named for Quonset Point, Rhode Island.
Quora
Quora is a question-and-answer website and social network founded in April 2009 in Palo Alto, California, by former Facebook employees Adam D'Angelo and Charlie Cheever.
Quoridor
Quoridor, Mirko Marchesi's 1997 Gigamic abstract strategy game: race a pawn across a 9x9 board while spending 10 walls to delay your opponent, who can never be fully blocked; PSPACE-complete.
Quorn
Quorn is a British meat-alternative brand owned by Marlow Foods, built on mycoprotein from the fungus Fusarium venenatum and first sold in the UK in 1985.
Quorthon
Quorthon (Thomas Börje Forsberg, 1966–2004) was the Swedish multi-instrumentalist who founded Bathory in 1983, pioneered black metal and Viking metal, wrote all its albums, and released solo rock records before dying of heart failure.
Quorum
Quorum: the minimum number of members (Latin quorum, "of whom") a deliberative body needs to transact business validly, typically a majority, from the US Congress quorum clause to the UK Commons' 40-member division rule.
Quorum of the Twelve Apostles (LDS Church)
The Quorum of the Twelve Apostles is the second-highest presiding body of the LDS Church, a council of twelve men who lead the church between presidents.
Quorum sensing
Quorum sensing: density-dependent bacterial communication via autoinducers such as AHLs, peptides, and AI-2; discovered in Vibrio fischeri luminescence; regulates virulence and biofilms; target of quorum quenching.
Quorum-sensing active particles
Quorum-sensing active particles are self-propelled particles, biological or synthetic, whose motility depends on the local density of neighbors, adapting bacterial quorum sensing to active matter physics.
Quota (Unix)
A Unix disk quota is a per-user, group, or project limit on disk space and file count on a filesystem, originating in BSD and implemented in Linux via the quotactl system call.
Quota rule
Quota rule: apportionment fairness criterion requiring each state or party to receive seats between its lower and upper quota. Hamilton's method satisfies it; Jefferson, Adams, Webster, and Huntington-Hill can violate it; Balinski-Young theorem limits combinations.
Quota sampling
Quota sampling is a non-probability survey method in which the sample is divided into quotas for demographic subpopulations, filled through non-random selection. George Gallup introduced it in 1936.
Quota System (Royal Navy)
The Quota System was a 1795 British naval recruiting scheme requiring counties and seaports to raise fixed numbers of men for the Royal Navy at local expense.
Quotation
Quotation is the reproduction of another work's exact words, marked by quotation marks or block indentation and attributed to its source. Covers direct versus indirect quotation, US and British punctuation conventions, and the history of quotation marks from 1516.
Quotation mark
Quotation marks (" " or ' ', also called inverted commas) are paired punctuation for direct speech, quotations, and short-work titles. US style prefers double marks with punctuation inside; UK style single marks; nesting alternates the two styles.
Quotation marks in English
Quotation marks in English enclose direct speech, short-work titles, and words discussed as words. American style uses double marks with punctuation inside; British style uses single marks with punctuation by sense; Unicode encodes marks by shape, not function.
Quotations from Chairman Mao Tse-tung
Quotations from Chairman Mao Tse-tung, known worldwide as the Little Red Book (毛主席语录), is a compilation of Mao's sayings first published by the People's Liberation Army in 1964.
Quotient
A quotient is the result of dividing one number by another; in Euclidean division of 41 by 7, the quotient is 5 with remainder 6.
Quotient group
A quotient group, also called a factor group, is a group built from a group G and a normal subgroup N by treating the cosets of N as elements.
Quotient module
A quotient module, also called a factor module, is the module analog of a quotient group: the cosets M/N of a submodule N, with well-defined addition and scalar multiplication.
Quotient ring
A quotient ring, also called a factor ring or residue class ring, is a ring built from a ring R and an ideal I, generalizing modular arithmetic.