All articles starting with J
20,615 articles
Jones polynomial
The Jones polynomial is a polynomial invariant of knots and links in three-dimensional space, introduced by Vaughan Jones in 1984. It distinguishes all knots of 10 crossings or fewer, though computing it is #P-hard.
Jones Soda
Jones Soda Co. is a Seattle-based beverage company launched in 1996 by Peter van Stolk, known for cane-sugar craft sodas in bottles bearing consumer-submitted photographs.
Jones Sound
Jones Sound: strait between Ellesmere and Devon islands in the Canadian Arctic Archipelago, one of three main Arctic-to-Baffin Bay passages, 30 km wide, 190 m deep sill, 0.3 Sv flow, recurring polynya.
Jones–Shafroth Act
Jones–Shafroth Act (Jones Act of 1917, 39 Stat. 951), a U.S. federal law signed by Wilson on March 2, 1917 granting Puerto Ricans statutory U.S. citizenship, a bill of rights, and an elected bicameral legislature; distinct from the Merchant Marine Act of 1920.
Jonesboro, Arkansas
Jonesboro, Arkansas: county seat of Craighead County on Crowley's Ridge, largest city in northeast Arkansas and fifth in the state, home of Arkansas State University and St. Bernards, founded 1859, population 83,296 (2025 estimate).
Jonestown
Jonestown, also called the Peoples Temple Agricultural Project, was a commune in Guyana where 918 people died on November 18, 1978, by cyanide poisoning and shootings.
Jong Ajax
Jong Ajax (Young Ajax) is AFC Ajax's under-23 reserve team, playing in the Keuken Kampioen Divisie, the Dutch second tier, since 2013/14. It won the 2017/18 title, the first reserve team to do so, but cannot be promoted to the Eredivisie.
Jong Seung Kim
Jong Seung Kim (김종승) is a South Korean supramolecular chemist and professor of chemistry at Korea University in Seoul, known for fluorescent probes and cancer theranostics.
Jong-Cheol Rah
Jong-Cheol Rah is a South Korean neuroscientist at the Korea Brain Research Institute in Daegu, known for his 2008 study of syntaxin-1 and synaptic vesicle fusion.
Jong-Chul Ye
Jong-Chul Ye (예종철) is a South Korean signal processing researcher and tenured professor at KAIST's Graduate School of AI, working on machine learning for biomedical imaging.
Jong-Hyeok Lee
Jong-Hyeok Lee (이종혁) is a South Korean computer scientist working in natural language processing, a professor at POSTECH since 1991 with research in machine translation.
Jong-Shi Pang
Jong-Shi Pang is a Stanford-trained operations researcher and optimization theorist, Epstein Family Chair at the University of Southern California since 2013 and a 2021 National Academy of Engineering member.
Jong‐Beom Baek
Jong-Beom Baek (백종범) is a South Korean materials chemist, Distinguished Professor and lab director at UNIST since 2008, known for edge-functionalized graphene, single-atom catalysts, and mechanochemistry.
Jong‐Min Lee
Jong-Min Lee (이종민) is a South Korean electrochemist and associate professor at Nanyang Technological University in Singapore, known for electrocatalysts for hydrogen production and carbon dioxide reduction.
Jonggajip Folk Village
Jonggajip Folk Village (종가집민속촌, Jonggajimminsokchon) is a theme park in Bangu-dong, Jung-gu, Ulsan, South Gyeongsang, South Korea, named after the jongga, a clan's eldest-son head house.
Jongho
Jongho (종호, Choi Jongho 최종호), born 2000, is the main vocalist and youngest member of K-pop boy group ATEEZ under KQ Entertainment, debuted October 2018; known for high-note belting, drama OSTs, and solo tracks like To Be Your Light.
Jonghwan Kim
Jonghwan Kim is a molecular biologist who studies transcriptional and epigenetic regulation of stem cells, and has been Professor of Molecular Biosciences at the University of Texas at Austin since 2023.
Jongkuch Mach
Jongkuch "JK" Mach, Australian-South Sudanese basketball centre, born 2007, 7'6" (229 cm), plays for Basketball Australia Centre of Excellence in NBL1 East; Eurocamp 2026 blocks leader, NBA draft eligible 2028.
Jonglei
Jonglei, South Sudan's largest and most populous state, capital Bor, 80,631 sq km, home to Bor Dinka, Lou Nuer, and Murle communities; marked by inter-communal conflict, the 2013 civil war, 2025-26 SSPDF-SPLA-IO fighting, and severe Nile floodplain flooding.
Jonglei clashes (2025–present)
Jonglei clashes (2025–present): ongoing SSPDF–SPLA-IO and White Army fighting in Jonglei State, South Sudan, escalating from late December 2025 after Machar's detention, with mass airstrikes, about 280,000 displaced, and over 450,000 children at malnutrition risk.
Jongmyo Sajik-seo
Jongmyo Sajik-seo refers to the two Joseon-dynasty state offices, the Jongmyo-seo and Sajik-seo, that managed the royal ancestral shrine and the state soil-and-grain altar until 1908.
Jongmyo Shrine
Jongmyo Shrine (宗廟), Seoul: Confucian royal shrine founded 1395 housing Joseon dynasty kings' and queens' spirit tablets in Jeongjeon (19 bays) and Yeongnyeongjeon (16 bays); UNESCO World Heritage 1995, ritual and music intangible heritage.
Jongo
Jongo, also called caxambu or batuque, is an Afro-Brazilian drum-dance expression from Southeast Brazil, honoring enslaved ancestors through percussion, circle dance, and improvised sung verse.
Jongoh Jin
Jin Jong-oh (진종오), born 1979, South Korean pistol shooter; four Olympic golds and two silvers, three straight 50m pistol titles (2008-2016), first shooter with four individual Olympic golds, and world records in both pistol events.
Jongwoo Lim
Jongwoo Lim (임종우) is a South Korean chemist at Seoul National University, known for operando X-ray imaging of lithium movement in battery cathodes and a 2023 Young Scientist Award.
Jongyoon Han
Jongyoon Han (한종윤) is a Korean-born bioengineer and electrical engineer at MIT, professor in both EECS and Biological Engineering, working on lab-on-a-chip devices for diagnostics and desalination.
Joni D. Wallis
Joni D. Wallis is a neuroscientist and professor at UC Berkeley who directs the Wallis Lab, known for work on decision-making, reward, and abstract rule encoding in the prefrontal cortex.
Joni Eareckson Tada
Joni Eareckson Tada is an American evangelical author, mouth-painting artist, and disability advocate, quadriplegic since a 1967 diving accident, who founded the ministry Joni and Friends.
Joni Ernst
Joni Ernst, Republican U.S. senator from Iowa since 2015, first woman in federal office from Iowa and first female combat veteran in the Senate; retired lieutenant colonel; announced 2025 she will not seek reelection in 2026.
Joni Mitchell
Joni Mitchell (Roberta Joan Anderson, born 1943), Canadian singer-songwriter and painter of Blue and Court and Spark, known for open-tuned guitar, jazz turn, Gershwin Prize, Grammys, and Joni Jam comeback.