All articles starting with U
6,146 articles
Ulanhu
Ulanhu (乌兰夫), also known as Yun Ze, was a Mongol communist politician who founded the Inner Mongolia Autonomous Government in 1947 and became Vice President of China in 1983.
Ulanqab
Ulanqab (乌兰察布市, Wulanchabu), prefecture-level city in central Inner Mongolia, seat Jining District, area about 54,500 km2; shrinking population (1.695 million, 2020 census) but a fast-growing AI data center and green power hub near Beijing.
Ularitide
Ularitide (urodilatin, ESP-305) is a synthetic 32-amino-acid A-type natriuretic peptide, a kidney-derived vasodilator and natriuretic drug tested in the phase III TRUE-AHF trial for acute decompensated heart failure, which showed physiological effects but no mortality benefit.
ULAS J1120+0641
ULAS J1120+0641 is a quasar in the constellation Leo at redshift 7.085, seen 770 million years after the Big Bang and the most distant quasar then known.
Ulas Samchuk
Ulas Samchuk (Улас Самчук; 1905–1987) was a Ukrainian prose writer and journalist whose trilogy Volyn and novel Mariia chronicle 20th-century Ukrainian peasant and émigré life; exiled in Europe, he settled in Toronto, Canada, in 1948.
Ulawun
Ulawun, the Father, is a 2,334 m basaltic-to-andesitic stratovolcano on New Britain, Papua New Guinea, the highest volcano of the Bismarck arc, a Decade Volcano erupting since at least 1700, with a VEI 4 eruption in 2019 and a deadly November 2023 eruption.
Ulay
Ulay (Frank Uwe Laysiepen, 1943–2020), German performance artist and photographer in Amsterdam, pioneer of performative Polaroid photography, collaborator of Marina Abramović 1976–1988, creator of the Spitzweg theft action and The Lovers.
Ulayya bint al-Mahdi
Ulayya bint al-Mahdi (علية بنت المهدي) was an Abbasid princess of Baghdad, a poet, singer, and musician, and half-sister of Caliph Harun al-Rashid, living from 777 to 825.
Ulba Metallurgical Plant
The Ulba Metallurgical Plant (Ульбинский металлургический завод) is a Kazakhstani metallurgical company in Ust-Kamenogorsk, founded in 1949 and owned by Kazatomprom, producing uranium fuel, beryllium, and tantalum.
ULBP2
ULBP2 (RAET1H, NKG2DL2, ALCAN-alpha) is a chromosome 6q24.2-25.3 gene encoding a GPI-anchored MHC class I-related NKG2D ligand for NK cells; soluble ULBP2 is a poor-prognosis marker in melanoma, CLL, lung, and pancreatic cancer.
Ulbright-Hodes syndrome
Ulbright-Hodes syndrome, also known as renal dysplasia-mesomelia-radiohumeral fusion syndrome, is an exceedingly rare autosomal recessive malformation disorder with dysplastic kidneys, limb reduction defects, and rib anomalies.
Ulcer (dermatology)
Ulcer (dermatology): a full-thickness loss of epidermis and dermis, a crater-like skin sore, also called skin ulcer, healing with scarring. Caused by inflammation, trauma, infection, poor circulation, pressure, or cancer; venous ulcers cause 60-80% of leg ulcers.
Ulcer of anus
Ulcer of anus (ICD-11.DB52) is a mucosal defect characterized by extension into the submucosa or deeper. It includes solitary, stercoral, and ulcer of anus and rectum.
Ulceration of conjunctiva
Ulceration of conjunctiva (conjunctival ulcer, ICD-11 9A60.30; SNOMED CT 95744009) is a necrotic depressed lesion of the eye's conjunctiva, infective (tuberculosis, herpes) or non-infective (Behçet's, Crohn's, mechanical), diagnosed by fluorescein staining.
Ulcerative colitis
Ulcerative colitis, also known as colitis ulcerosa, is a chronic inflammatory bowel disease causing inflammation and ulcers in the colon and rectum, with symptoms including bloody diarrhea and abdominal pain.
Ulcerative pancolitis
Ulcerative pancolitis (pancolitis, extensive colitis, Montreal E3) is ulcerative colitis inflaming the entire colon. ICD-10 K51.0, ICD-11 DD71.0; higher colorectal cancer risk, surveillance from about 8 years after onset.
Ulcerative proctitis
Ulcerative proctitis is inflammation of the rectal mucosa confined to the rectum, the mildest form of ulcerative colitis, causing rectal bleeding and urgency, treated first with rectal 5-ASA.
Ulcerative rectosigmoiditis
Ulcerative rectosigmoiditis, also called ulcerative proctosigmoiditis (ICD-11 DD71.2), is ulcerative colitis confined to the rectum and sigmoid colon; it is the most common extent at diagnosis, progresses proximally in up to about a third of patients, and is treated first with rectal mesalamine.
Ulceroglandular tularaemia
Ulceroglandular tularaemia, the commonest form of tularemia caused by Francisella tularensis, features a skin ulcer at the inoculation site with regional lymphadenopathy after tick, deer fly, or animal contact, treated with fluoroquinolones, gentamicin, or doxycycline.
Ulch people
Ulch people (nani), Tungusic indigenous ethnic group of the lower Amur in Khabarovsk Krai, Russia; about 2,800 in 2010 census, with under 150 speakers of the Ulch language; fishing culture with shamanism and bear festival.
Ulcinj
Ulcinj (Albanian: Ulqin) is Montenegro's southernmost coastal town, center of the Albanian community, with a layered old town (Venetian 1421–1571, Ottoman 1571–1878), 15 km of sandy beaches, Velika Plaza, and the Ulcinj Salina bird habitat.
Ulcisia Castra/Castra Constantia
Ulcisia Castra, later Castra Constantia (Hungarian Farkasvár), a Roman auxiliary fort on the Danube limes at Szentendre, Hungary; built early 2nd century AD, 134 x 205 m, garrisoned by Syrian archers and other cohorts, renamed in the 4th century, abandoned early 5th century.
Ulderico Sergo
Ulderico Sergo (1913–1967), Italian bantamweight boxer born in Fiume/Rijeka; won 1936 Berlin Olympic gold by beating Jackie Wilson, took European titles 1937 and 1939, later a professional in Italy and exile in Cleveland.
Uldin
Uldin, also spelled Huldin, was a Hunnic ruler north of the Danube and the first Hun identified by name in Roman sources, active from about 400 until after 408.
Uldis Augulis
Uldis Augulis is a Latvian politician of the Union of Greens and Farmers who has served as Minister for Agriculture since 2026, after earlier terms as welfare and transport minister.
Ulduz
Ulduz (Azerbaijani for "Star") is a monthly Azerbaijani literary journal published in Baku since January 1967, currently the literary organ of the Azerbaijan Writers' Union.
Ule-Amuay Oil Pipeline
The Ule-Amuay Oil Pipeline (oleoducto Ulé-Amuay) is a 230-kilometer crude oil pipeline in western Venezuela, operated by PDVSA, carrying oil from Lake Maracaibo's Ulé tank farm to the Amuay refinery since 1948.
Ulefnersen
Ulefnersen, also known as jacifusen or formerly ION363, is an investigational antisense oligonucleotide from Ionis Pharmaceuticals that met its Phase 3 FUSION endpoint in FUS-ALS in 2026.
Ulefone
Ulefone is a Chinese mobile-device brand founded in 2014 and manufactured by Shenzhen Gotron Electronics that specializes in rugged smartphones and tablets sold worldwide under the Armor product lines.
Ulex
Ulex (gorse, furze, whin) is a genus of spiny, yellow-flowered Fabaceae shrubs native to western Europe and the Mediterranean, with about 15-21 species, a diploid-tetraploid-hexaploid series, and the invasive hexaploid Ulex europaeus spread across more than 50 countries.