All articles starting with U
6,146 articles
Urshu
Urshu, also known as Urshum, was a Bronze Age city and kingdom on the middle Euphrates above Carchemish in present-day southeastern Turkey, whose exact site has never been identified.
Ursids
The Ursids are an annual meteor shower radiating from Ursa Minor, peaking around December 22 with low rates most years but known outbursts, produced by comet 8P/Tuttle.
Ursinus College
Ursinus College is a private, non-sectarian liberal arts college in Collegeville, Pennsylvania, founded in 1869 and coeducational since 1880, with about 1,500 undergraduates on a 170-acre suburban Philadelphia campus.
Urska Zolnir
Urška Žolnir Jugovar (born 1981, Žalec) is a Slovenian judoka, -63 kg half-middleweight. Olympic gold London 2012, first individual women's gold for Slovenia; bronze Athens 2004; European champion 2009.
Ursodeoxycholic acid
Ursodeoxycholic acid (UDCA, ursodiol), a hydrophilic bile acid first found in polar bear bile, is the first-line oral drug for primary biliary cholangitis at 13-15 mg/kg/day, also used in intrahepatic cholestasis of pregnancy and gallstone dissolution.
Ursolis
Ursolis (Ursolae, Ursoli, Urseola), a place in Gallia Narbonensis on the Antonine Itinerary road between Valentia and Vienne, 22 and 26 miles distant; site proposed as S. Valier or Roussillon.
Uršu/Waršuwa
Uršu (Waršuwa, Urshum) was a Hurrian-Amorite Bronze Age city-state in southern Turkey, probably on the west bank of the Euphrates north of Carchemish, known from Ebla, Gudea, and Hittite siege texts; its site remains unidentified.
Ursula (crater on Titania)
Ursula is a 135 km flat-floored impact crater on Titania, Uranus's largest moon, at −12.4°, 45.2°E, IAU-named in 1988 after a Much Ado About Nothing character, ringed by smooth plains of debated ejecta or cryovolcanic origin.
Ursula (The Little Mermaid)
Ursula (アースラ) is the sea witch villain of Disney's The Little Mermaid (1989), voiced by Pat Carroll, designed after drag queen Divine, and reimagined as Triton's sister played by Melissa McCarthy in the 2023 remake.
Ursula and Sabina Eriksson
Ursula and Sabina Eriksson, known as the Eriksson twins, are Swedish identical twins who ran into M6 traffic in May 2008; three days later Sabina killed a man sheltering her.
Ursula Andress
Ursula Andress, born March 19, 1936 in Bern, is the Swiss actress who played the first Bond girl, Honey Ryder, in Dr. No (1962), famous for the white bikini scene, a Golden Globe winner, later in Clash of the Titans, and victim of a 2026 fraud case.
Ursula B. Kaiser
Ursula B. Kaiser is a Canadian-trained physician and reproductive neuroendocrinologist who leads endocrinology at Brigham and Women's Hospital, teaches at Harvard, and studies how the brain controls puberty.
Ursula Bellugi
Ursula Bellugi was an American cognitive neuroscientist who founded the neurobiology of American Sign Language and became a leading expert on Williams syndrome at the Salk Institute.
Ursula Bethell
Ursula Bethell (1874–1945), who published as Evelyn Hayes, was a New Zealand poet and pioneer of modern New Zealand poetry, known for garden poems drawn from the Canterbury landscape.
Ursula Burns
Ursula Burns is an American business executive who was CEO of Xerox from 2009 to 2017, the first Black woman to lead a Fortune 500 company.
Úrsula Corberó
Úrsula Corberó (Úrsula Corberó Delgado), Spanish actress born 1989 in Sant Pere de Vilamajor, Barcelona; known as Ruth in Física o Química and Tokyo in Money Heist, later Snake Eyes, Burning Body, and The Day of the Jackal.
Úrsula de Jesús
Úrsula de Jesús (1604–1666) was an Afro-Peruvian mystic and donada at Lima's Convent of Santa Clara, whose spiritual diary is the first known journal by a black woman in colonial Spanish America.
Ursula family
Ursula family: outer main-belt asteroid collisional family named for (375) Ursula; primitive, redder than Themis, Hygiea, Veritas, and Lixiaohua, CX/X-complex, with no hydrated members in visible spectra.
Ursula Happe
Ursula Happe (Ursula Krey), German breaststroke swimmer (1926–2021); 1956 Melbourne Olympic 200 m breaststroke champion in 2:53.1, Germany's first postwar Olympic swimming gold medalist.
Ursula Jakob
Ursula Jakob is a biochemist at the University of Michigan who studies how oxidants like bleach damage proteins; her lab discovered Hsp33, the first redox-regulated chaperone.
Ursula K. Le Guin
Ursula K. Le Guin (1929–2018), born Ursula Kroeber in Berkeley, was an American author of The Left Hand of Darkness, The Dispossessed, and the Earthsea series; winner of six Nebulas, seven Hugos, and the 2014 National Book Foundation Medal.
Ursula K. Le Guin bibliography
Bibliography of Ursula K. Le Guin (1929–2018): 23 novels, 12 story volumes, 11 poetry volumes, 13 children's books, five essay collections, and four translations, including the Earthsea series and the Hainish novels The Left Hand of Darkness (1969) and The Dispossessed (1974).
Ursula Keller
Ursula Keller is a Swiss physicist in ultrafast laser physics and attosecond science who invented the SESAM and the attoclock, and taught at ETH Zurich from 1993 to 2025.
Ursula Küper
Ursula Küper (Stille), born 28 November 1937 in Berlin, East German breaststroke swimmer for SC Dynamo Berlin; 1960 Olympic bronze in the 4x100 m medley relay and 100 m breaststroke world record 1:19.0.
Ursula Mittwoch
Ursula Mittwoch (1924–2021) was a British human geneticist, born in Berlin, who spent a 42-year career at University College London studying sex determination, the sex chromosomes, and gonad differentiation.
Ursula Müller‐Eberhard
Ursula Müller-Eberhard (1928–2016) was a German-born physician-scientist in pediatric hematology and biochemistry, known for her research on hemopexin, the heme-binding serum β-glycoprotein.
Ursula Quitterer
Ursula Quitterer, born 1966, is a German molecular pharmacologist and full professor at ETH Zurich whose group discovered that AT1–B2 receptor heterodimers are a causative factor in preeclampsia.
Ursula Röthlisberger
Ursula Röthlisberger is a Swiss computational chemist and full professor at EPFL since 2009, known for QM/MM methods applied to enzyme catalysis and solar cells.
Ursula Schmidt‐Erfurth
Ursula Schmidt-Erfurth is an Austrian ophthalmologist, Professor and Chair of Ophthalmology at the Medical University of Vienna from 2004 to 2026, known for retinal imaging and AI diagnostics.
Ursula Storb
Ursula Storb was an American immunologist and molecular geneticist, professor at the University of Chicago, who helped create the first transgenic immunoglobulin mice and died in 2023 at 87.