All articles starting with Q
2,252 articles
Quanzhen–Buddhist Debates
The Quanzhen–Buddhist Debates (佛道辩论) were court-ordered disputations between Buddhist monks and Quanzhen Daoists under Möngke and Kublai Khan, 1255 to 1258, won by the Buddhists.
Quanzhi
Quanzhi (全植) is a name attributed to a purported Chan Buddhist monk of Tang China with claimed dates 752–844; no stele, biography, or ordination record mentions him.
Quanzhou (泉州)
Quanzhou (泉州), historically Zayton, a Fujian port city that was China's largest eastern port in the Song and Yuan dynasties; inscribed by UNESCO in 2021 as a 22-site World Heritage property, Emporium of the World in Song-Yuan China.
Quanzhou: Emporium of the World in Song-Yuan China
Quanzhou: Emporium of the World in Song-Yuan China, a 2021 UNESCO serial World Heritage property in Fujian honoring Zayton, the largest eastern Chinese port of the 10th-14th centuries on the Maritime Silk Roads.
Quao
Quao, also recorded as Captain Quaw, was the leader of the Windward Maroons of eastern Jamaica who signed the 1739 peace treaty with the British, ending the First Maroon War for his people.
Quapaw
The Quapaw, self-named Ogaxpa or Ugaxpa ("Downstream People"), are a Dhegiha Siouan Native American people of the Arkansas River and Mississippi confluence; the French named Arkansas after them.
Quaranta (album)
Quaranta is Danny Brown's sixth album (Warp, November 17, 2023), also called Quaranta; Italian for 40, written during COVID lockdown, a somber, introspective spiritual sequel to XXX featuring MIKE, Bruiser Wolf, and Kassa Overall.
Quarantine
Quarantine (quaranta giorni, forty days) separates exposed but not-yet-ill people to prevent disease spread; first formalized in Ragusa 1377 and Venice 1348, with lazarettos from 1423, distinct from isolation of the sick.
Quarantine (2008 film)
Quarantine (2008) is John Erick Dowdle's American found-footage horror remake of the Spanish film [REC], starring Jennifer Carpenter as a reporter sealed in a virus-quarantined apartment building; released October 10, 2008, 89 minutes, Screen Gems.
Quarantine 2: Terminal
Quarantine 2: Terminal (2011) is John Pogue's horror sequel to Quarantine, following Flight 318 passengers quarantined in an airport terminal after a rabies-like virus outbreak; it drops found footage and diverges from [REC] 2.
Quarantine and biosecurity for conifer pests
Quarantine and biosecurity for conifer pests are the laws, inspections, surveillance, and eradication responses that stop non-native insects and pathogens from entering conifer forests through trade.
Quarantine Zone: The Last Check
Quarantine Zone: The Last Check is a 2026 first-person checkpoint simulation by Brigada Games and Devolver Digital, released January 12, 2026 on Steam and Xbox PC, where players screen zombie-apocalypse survivors for infection and decide to admit, quarantine, or liquidate them.
Quark
A quark is a fundamental particle carrying fractional electric charge that combines with other quarks to form hadrons such as protons and neutrons; six flavors are known.
Quark
Quark is a consumer app from Alibaba that combines AI search, a browser, and an AI assistant, launched in 2016 and rebuilt in 2025 on Qwen models.
Quark (dairy product)
Quark (German Quark, Topfen; fromage frais, tvorog) is a fresh, unripened acid-set dairy product of Central Europe, made by fermenting pasteurized milk to about pH 4.6 with lactic acid bacteria and a little rennet, then draining the curd without cutting, cooking, or aging.
Quark (Star Trek)
Quark is the Ferengi bartender of Quark's Bar on Star Trek: Deep Space Nine, played by Armin Shimerman for all seven seasons (1993-1999); family Rom, Nog, Ishka; not a Starfleet main character.
Quark Archipelago
Quark Archipelago (Merenkurkun saaristo), Ramsar Site no. 6 in western Finland, designated 28 May 1974; a 63,699 ha shallow-marine archipelago in the Kvarken strait, rich in birds, with rapid land uplift and UNESCO World Heritage overlap.
Quark coalescence
Quark coalescence, or quark recombination, is a model of hadron formation in heavy-ion collisions where hadrons are built directly from quarks already present in the deconfined quark-gluon plasma rather than by fragmentation.
Quark model
The quark model, proposed by Murray Gell-Mann and George Zweig in 1964, classifies hadrons as bound states of quarks: mesons of a quark and antiquark, baryons of three quarks.
Quark star
A quark star is a hypothetical compact star made of deconfined quark matter rather than neutrons, sitting alongside neutron stars and black holes as an endpoint of stellar evolution; none has been confirmed.
Quark–gluon plasma
The quark–gluon plasma, or quark soup, is a state of matter with free quarks and gluons that filled the early universe and is now made by colliding heavy ions.
Quark–gluon plasma in small systems
Quark–gluon plasma in small systems is the study of whether QGP forms in proton, deuteron, and light-ion collisions, once used as QGP-free controls, with flow and jet-quenching evidence since about 2010.
Quark–hadron phase transition
The quark–hadron phase transition is the change in quantum chromodynamics between confined hadronic matter and the deconfined quark–gluon plasma, studied in the early universe and heavy-ion collisions.
QuarkNet
QuarkNet is a United States professional development and outreach program, founded in 1999, that partners high school teachers and students with particle physicists on experiments at CERN and Fermilab.
Quarkonium
Quarkonium (plural quarkonia) is a bound state of a heavy quark and its own antiquark, the analog of positronium; its suppression in heavy-ion collisions probes the quark-gluon plasma.
QuarkXPress
QuarkXPress is a desktop publishing and page layout application for print and digital design, first released in 1987 and dominant in professional publishing until Adobe InDesign overtook it after 1999.
Quarkyonic matter
Quarkyonic matter is a conjectured phase of quantum chromodynamics at high baryon density and low temperature, in which quarks are the relevant degrees of freedom but remain confined, developed mainly by Larry McLerran.
Quarraisha Abdool Karim
Quarraisha Abdool Karim is a South African infectious diseases epidemiologist who co-founded CAPRISA in Durban and led the CAPRISA 004 tenofovir gel trial, the first evidence for HIV PrEP.
Quarry
A quarry is an open-pit mine from which stone, sand, or gravel is extracted at the surface, yielding dimension stone and crushed rock for construction.
Quarry (TV series)
Quarry is a 2016 Cinemax crime drama, one season of 8 episodes, created by Michael D. Fuller and Graham Gordy from Max Allan Collins's hitman novels, starring Logan Marshall-Green as a Vietnam veteran drawn into Memphis crime; cancelled in 2017.