All articles starting with U

Urapidil

Urapidil (Ebrantil, B 66256) is a piperazine antihypertensive combining peripheral alpha-1 adrenoceptor blockade with central 5-HT1A agonism, used in Europe and Asia for hypertension and hypertensive emergencies; not marketed in the United States.

Urara Takano (高乃麗)

Urara Takano (高乃麗), real name Hisako Takayama, born 1961 in Togane, Chiba, is a Remax voice actress known for Maria Tachibana in Sakura Wars, Kai in Beyblade, and dubbing Helena Bonham Carter, Queen Latifah, and Carla Gugino.

Urartian language

Urartian, also called Vannic or Chaldean, is the extinct language of the Iron Age kingdom of Urartu around Lake Van, known from more than 500 royal cuneiform inscriptions.

Urartian religion

Urartian religion was the state religion of the kingdom of Urartu, headed by the war god Haldi, from the 9th century BC until about 590 BC.

Urartians

The Urartians were the people of the Iron Age kingdom of Urartu, called Biainili in their own records, which flourished in the ninth and eighth centuries BC.

Urartu

Urartu (Biainili, biblical Ararat) was an Iron Age kingdom of the Armenian highland between Lakes Van, Urmia, and Sevan, founded mid-9th century BCE, rivaling Assyria, and vanishing around 590 BCE into the Achaemenid satrapy Armina.

Urash Corona

Urash Corona, a 360-km-wide corona (circular volcano-tectonic feature) on Venus at 43.2°N, 282.0°E, named for the Sumerian-Akkadian earth goddess, wife of Anu; IAU-approved 2007.

Oct 15, 2026

Urashima (AUV)

Urashima (うらしま) is a deep-sea cruising autonomous underwater vehicle developed by Japan's JAMSTEC since 1998, holding a world record 317 km continuous cruise set in 2005.

Urashima Tarō (浦島太郎)

Urashima Tarō (浦島太郎), the fisherman hero of Japan's famous Dragon Palace folktale, first named in a Muromachi otogizōshi; he rides a rescued turtle to Ryūgū-jō, is entertained by Otohime, and ages centuries in a moment upon opening the forbidden tamatebako.

Urassaya Sperbund (อุรัสยา เสปอร์บันด์)

Urassaya Sperbund (อุรัสยา เสปอร์บันด์), nicknamed Yaya, is a Thai-Norwegian actress born 1993 in Pattaya, known for Duang Jai Akkanee, two Suphannahong Best Actress wins, and as the first Thai Louis Vuitton House Ambassador.

Urata Naoya

Urata Naoya (浦田直也, born 1982 in Tokyo) is a Japanese singer and former leader of the dance-vocal group AAA, which he led from 2005 to 2019.

Uratami (king of Hamath)

Uratami, also rendered Rudamu or Uratamis, was a Luwian king of Hamath in western Syria around 840 BCE, the son and successor of Urhilina and the last known Luwian ruler of the city.

Sep 29, 2026

Urate-lowering therapy

Urate-lowering therapy (ULT) is drug treatment that reduces serum uric acid below the saturation point to dissolve crystals and prevent gout flares, using drugs such as allopurinol, febuxostat, and probenecid.

Urawa Red Diamonds (浦和レッドダイヤモンズ)

Urawa Red Diamonds (浦和レッドダイヤモンズ), or Urawa Reds, a J1 League football club in Saitama City founded in 1950 as Mitsubishi's works team; three-time AFC Champions League winner (2007, 2017, 2022) and 2006 J1 champion.

Oct 22, 2026

Urayoán

Urayoán was a Taíno cacique of the Yagüeca chiefdom in western Puerto Rico who ordered the drowning of Diego Salcedo around 1510 or 1511, triggering the Taíno uprising of 1511.

Uraz Bacha

Uraz Bacha is an Afghan archaeological site of three settlement mounds near Khwaja Ghar on the Rud-i Shahrawan, occupied in the Hellenistic (3rd-1st century BC), Hephthalo-Turk (5th-9th century AD), and Islamic periods.

Urba

Urba is the ancient Roman name of Orbe in Vaud, Switzerland, also recorded as Vicus Urbensis, best known for the huge Roman villa and mosaics of Boscéaz, excavated 1986-2004 by the University of Lausanne.

Urban agriculture

Urban agriculture: growing, processing, and distributing food in cities and suburbs, also called urban and peri-urban agriculture (UPA). Includes community gardens, rooftop farms, hydroponics, and vertical production; yields comparable to conventional agriculture.

Urban Air Mobility

Urban Air Mobility is an air transportation system using highly automated aircraft, mostly electric vertical take-off and landing vehicles, to move passengers and cargo in cities.

Urban aquaculture

Urban aquaculture is the farming of fish and other aquatic animals within cities and at the city edge, using tanks, rooftops, greenhouses, and peri-urban ponds, sometimes fed by city wastewater.

Urban area

Urban area: a densely populated built-up extent or a city plus its commuting zone. Key definitions include the UN DEGURBA (1,500 people/km2, 50,000 inhabitants) and the EU-OECD functional urban area (15% commuting threshold).

Urban area (France)

Urban unit (unité urbaine), Insee's French statistical zoning: communes with continuous built-up area (gaps under 200 m) of at least 2,000 inhabitants; 2,467 units in 2020, 79% of population, Paris agglomeration 10.8 million.

Urban chicken keeping

Urban chicken keeping (backyard poultry, city chickens) means raising small hen flocks on residential lots for eggs. 11 million U.S. households keep them; 93% of large U.S. cities permit flocks, usually banning roosters; Salmonella is the main health risk.