All articles starting with R
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Rías Baixas
The Rías Baixas are four large, funnel-shaped coastal inlets on the western coast of Galicia, north-west Spain, whose seasonal Atlantic upwelling drives highly productive waters supporting fisheries and mussel farming.
Riau
Riau (Riau Province, Provinsi Riau) is an Indonesian province on central-eastern Sumatra, capital Pekanbaru, established 9 August 1957, population about 6.9 million, a major oil, gas, and palm oil economy distinct from Riau Islands province.
Riau Islands
Riau Islands (Kepulauan Riau, Kepri), Indonesian province of over 2,000 islands between Sumatra and Singapore, split from Riau in 2002; capital Tanjungpinang, economic center Batam free trade zone.
Riau literary school
The Riau literary school was a nineteenth-century cluster of Malay writers, scholars, and printers on Penyengat Island in the Riau-Lingga Sultanate, best known through Raja Ali Haji.
Riau-Lingga Sultanate
The Riau-Lingga Sultanate (Kesultanan Riau-Lingga) was a Malay sultanate in the Riau archipelago, ruled from Lingga from 1824 until the Dutch abolished it in 1911.
Riaz Ahmed
Riaz Ahmed (ریاض•احمد), Pakistani field hockey player born 1941 in Rawalpindi; won Olympic gold at Mexico City 1968, silver at Munich 1972, and Asian Games gold at Bangkok 1970 with Pakistan.
Riaz Pasha
Riaz Pasha (رياض باشا), also written Mustafa Riyad Pasha, was an Egyptian statesman who served three times as prime minister of Egypt between 1879 and 1894, dying in 1911.
Riaz Ud Din
Riaz ud-Din (رياض الدين, 1942–2001), Pakistani field hockey fullback from Quetta; won Olympic gold with Pakistan at Mexico City 1968 and Asian Games silver 1966 and gold 1970. Not the cricketer Riaz Uddin.
Rib
Rib: one of typically 12 pairs of curved chest bones forming the thoracic cage; ribs 1-7 true, 8-10 false, 11-12 floating; commonly variable, with cervical ribs in up to 1% of people.
Rib cage
Rib cage (thoracic cage): bony chest framework of 24 ribs, 12 thoracic vertebrae, and sternum, 37 bones and 98 joints; protects heart and lungs, moves with breathing, true/false/floating ribs.
Rib eye steak
Rib eye steak: beef steak from the rib primal built around the longissimus dorsi muscle, prized for heavy marbling, USDA Prime/Choice grading at the 12th rib, dry-heat cooking, and top consumer palatability scores.
Rib fixation
Rib fixation, formally surgical stabilization of rib fractures (SSRF), is an operation that uses plates, screws, or intramedullary splints to hold broken ribs in place after severe blunt chest trauma.
Rib fracture
Rib fracture (broken rib): a crack or break in one or more ribs, usually from blunt chest trauma; the most common thoracic injury, treated mainly with analgesia and breathing exercises, surgery rarely needed except flail chest.
Rib resection
Rib resection is the surgical removal of a rib to relieve thoracic outlet syndrome, most often via the transaxillary first rib resection known as the Roos procedure.
RIB Software
RIB Software is a German construction software company in Stuttgart, founded in 1961, known for its iTWO 5D BIM platform and acquired by Schneider Electric in 2020.
Rib-Hadda
Rib-Hadda, also written Rib-Adda, was king of Byblos on the Lebanese coast around 1370 to 1340 BC, a vassal of Egypt who wrote more Amarna letters than anyone else.
Riba (ربا)
Riba (ربا) is an Arabic term in Islamic law meaning excess or increase: any compensation over a loan's principal or barter exchange that the Qur'an prohibits.
Ribaldry
Ribaldry, also called bawdry, is coarse humor about sex and bodily functions rather than obscenity. Attested from the late 14th century, it spans Chaucer, Shakespeare, Moliere, Restoration comedy, and modern stand-up.
Ribavirin
Ribavirin, a guanosine nucleoside analogue synthesized in 1970 at ICN Pharmaceuticals, is a broad-spectrum antiviral acting via IMPDH inhibition, polymerase inhibition, RNA mutagenesis, and immunomodulation; FDA-licensed for RSV and hepatitis C, with hemolytic anemia and teratogenicity as key toxicities.
Ribbit Capital
Ribbit Capital is a Palo Alto-based venture capital firm founded in 2012 by Meyer "Micky" Malka that invests in fintech and cryptocurrency startups, including Coinbase and Robinhood.
Ribble & Alt Estuaries
Ribble & Alt Estuaries (SPA UK9005103, Ramsar UK11057) is a 12,450-hectare protected estuarine wetland in Lancashire and Sefton, northwest England, holding 222,038 wintering waterfowl and up to 40% of Britain's natterjack toads.
Ribblehead Viaduct
Ribblehead Viaduct, officially Batty Moss Viaduct, is a 24-arch railway viaduct in North Yorkshire, England, built 1870 to 1875 for the Settle to Carlisle Railway.
Ribbon
Ribbon: a narrow, flat, flexible woven band with finished selvedges, 0.3–30 cm wide, used for tying, fastening, and decoration. Also called narrow fabric; distinct from cut cloth strips and from tapes, braids, and cords.
Ribbon Communications
Ribbon Communications is an American communications technology company, formed in 2017 by merging Sonus Networks and GENBAND, supplying session border controllers and IP networking equipment.
Ribbon of Saint George (Георгиевская лента)
Ribbon of Saint George (Георгиевская лента, St George ribbon): black-and-orange bicolor ribbon created in 1769 for Russia's Order of St George, revived as the Soviet Guards ribbon, mass-distributed since 2005, and legally protected in Russia since 2022.
Ribchester Roman Bath House
Ribchester Roman bath house, at Greenside near Bremetennacum fort, Lancashire: built about AD 100 for cavalry soldiers, hypocaust-heated, discovered 1837, excavated 1927, 1964, and 1978, disused by about AD 225.
Ribeira de Iguape
The Ribeira de Iguape is a river in southeastern Brazil, rising in Paraná and flowing about 470 km to the Atlantic at Iguape, on the São Paulo coast.
Ribeira Sacra E Serras Do Oribio E Courel Biosphere Reserve
Ribeira Sacra e Serras do Oribio e Courel Biosphere Reserve, Galicia, Spain; UNESCO MAB site designated 15 September 2021; 306,535 ha across 23 municipalities on the Miño and Sil rivers, with the Courel Geopark and six Natura 2000 sites.
Ribeirão das Neves
Ribeirão das Neves, a municipality in Minas Gerais's Belo Horizonte metropolitan region, Brazil; emancipated 1953 from Pedro Leopoldo; 329,794 people (2022 census); hosts Brazil's first prison public-private partnership.
Ribeirão Preto
Ribeirão Preto, São Paulo, Brazil; a major interior city, 698,642 residents (2022 census), founded 19 June 1856; former coffee capital, now an agribusiness and regional service hub (Capital Regional A) fully supplied by the Guarani Aquifer.