All articles starting with R
22,461 articles
Rivière Nosivolo et affluents
Rivière Nosivolo et affluents, Ramsar site no. 1916 in eastern Madagascar, designated 17 September 2010; 358,511 ha, 130 km of river, 19 endemic fish species including Oxylapia polli.
Riviere Sangha située en République Centrafricaine
Riviere Sangha située en République Centrafricaine (Sangha River CAR Ramsar site) is Ramsar site no. 1889: 275,000 ha of periodically flooded forest in Sangha-Mbaéré, designated 5 November 2009, rich in elephants, chimpanzees and raphia, threatened by upstream mining siltation.
Rivière-des-Prairies–Pointe-aux-Trembles
Rivière-des-Prairies–Pointe-aux-Trembles (RDP-PAT) is a borough of Montreal at the eastern tip of the island, created January 1, 2006, combining the districts Rivière-des-Prairies and Pointe-aux-Trembles; 51.26 km², about 108,000-117,000 residents, largest Montreal borough by area.
Rivigo
Rivigo Services Private Limited is an Indian logistics company founded in 2014 by Deepak Garg and Gazal Kalra, known for relay trucking in which drivers swap so trucks run nearly continuously.
Rivipansel
Rivipansel (GMI-1070), a small-molecule pan-selectin antagonist developed by GlycoMimetics and Pfizer for sickle cell vaso-occlusive crisis; safe but failed the phase 3 RESET trial primary endpoint.
Rivka Dikstein
Rivka Dikstein is an Israeli molecular biologist, a full professor and Dean of the Faculty of Biochemistry at the Weizmann Institute of Science, known for showing that the TFIID subunit TAFII250 is a protein kinase.
Rivne nuclear power plant
The Rivne nuclear power plant (RNPP, Ukrainian Рівненська АЕС) is a four-unit nuclear power station in Rivne oblast, northwestern Ukraine, and the first in Ukraine to use VVER-440 reactors.
Rivne Oblast
Rivne Oblast (Рівненська область), a northwestern Ukrainian oblast created 4 December 1939, capital Rivne; 20,047 km², 4 raions, 64 hromadas, borders Belarus over 234 km, forests 40.8% of area.
Rivne Raion
Rivne Raion (Рівненський район), a district of Rivne Oblast, Ukraine, created 17 July 2020 from seven former raions; center Rivne; 7,216.6 km², 439 settlements, 26 hromadas, population about 632,000.
Rivne, Rivne Oblast
Rivne (Рівне, formerly Rovno) is a city of about 245,000 in northwestern Ukraine on the Ustia River and the administrative center of Rivne Oblast; first recorded in 1282, a railway junction, and capital of Reichskommissariat Ukraine 1941–1944.
Rivoceranib
Rivoceranib (apatinib, YN968D1) is an oral VEGFR-2 tyrosine kinase inhibitor approved in China for gastric cancer and, with camrelizumab, first-line liver cancer; not FDA approved, pending review.
Rivoglitazone
Rivoglitazone (CS-011), a potent PPARγ-agonist thiazolidinedione developed by Daiichi Sankyo for type 2 diabetes; reached phase III with HbA1c reductions superior to pioglitazone but was discontinued in 2009 and never marketed.
Rivonia Trial
Rivonia Trial (State vs Mandela and others), 1963-1964 Pretoria sabotage trial of ten ANC and Umkhonto we Sizwe leaders after the Liliesleaf Farm raid; eight, including Nelson Mandela, got life imprisonment; Mandela's 'prepared to die' dock statement made it a landmark.
Rivos
Rivos was a Mountain View, California startup founded in 2021 that built RISC-V server chips for AI workloads and was acquired by Meta in 2025.
Rivulidae
Rivulidae (New World rivulines), Neotropical killifish family of Cyprinodontiformes; about 450-501 species, annual species with diapausing eggs, includes the only self-fertilizing vertebrates (Kryptolebias).
Rivus Pharmaceuticals
Rivus Pharmaceuticals is a clinical-stage biopharmaceutical company founded in Charlottesville, Virginia, in 2019, whose lead drug HU6 is in Phase 2 trials for MASH, a chronic liver disease.
Rixia jiuwen kao
Rixia jiuwen kao (日下旧闻考) is a 160-juan Qing dynasty collection of documents on Beijing's history and geography, compiled by imperial order in the Qianlong reign.
Rixosome
Rixosome: conserved multi-subunit nuclear complex (PELP1, WDR18, TEX10, LAS1L, NOL9, SENP3) that removes ITS2 during ribosome assembly and silences Polycomb target genes by degrading nascent RNA via XRN2.
Riya Sen (রিয়া সেন)
Riya Sen (রিয়া সেন), born Riya Dev Varma in 1981, is an Indian film actress and model from Kolkata, part of a three-generation family of Bengali cinema actresses.
Riya Shibu
Riya Shibu, born 2004, is an Indian film producer and actress in Malayalam and Tamil cinema, daughter of producer Shibu Thameens. She produced Thugs, Mumbaikar, Mura, and Veera Dheera Sooran: Part 2, and broke through as Delulu in Sarvam Maya (2025).
Riyad al-Ulama
Riyad al-Ulama, also known as Riyad al-Ulama wa Hiyad al-Fudala, is an Arabic biographical dictionary of scholars written by the Safavid-era scholar Mirza Abdallah Afandi.
Riyad Bank
Riyad Bank (بنك الرياض) is the third largest bank in Saudi Arabia by assets and the first joint stock bank in the Kingdom, founded by Royal Decree in 1957.
Riyad Mahrez (رياض كريم محرز)
Riyad Mahrez (رياض محرز) is an Algerian right winger who won the 2015-16 Premier League title with Leicester City and the 2023 Champions League with Manchester City.
Riyadh (الرياض)
Riyadh (الرياض), capital and largest city of Saudi Arabia on the Najd plateau; formerly Hajr, capital since King Abdulaziz's 1902 conquest; about 6.5-8.5 million people; opened the world's largest automated metro in 2024; hosts Expo 2030 and the 2034 FIFA World Cup.
Riyadh 10 power plant
The Riyadh 10 power plant, also known as PP10, is a 3,520 MW natural gas-fired combined-cycle power station in Riyadh, Saudi Arabia, owned by Saudi Electricity Company.
Riyadh 12 power plant
Riyadh 12 power plant, also known as PP12, is a 2,175 MW combined-cycle gas-fired power station in Riyadh Province, Saudi Arabia, owned by the Saudi Electricity Company.
Riyadh 7 power plant
Riyadh 7 power plant, also known as the Seventh Power Plant, is a 1,315-megawatt gas-fired power station in Riyadh, Saudi Arabia, owned by the Saudi Electricity Company.
Riyadh 8 power plant
Riyadh 8 power plant, also known as Riyadh PP8, is a gas-fired power station of at least 2,089 MW in Riyadh, Saudi Arabia, owned by the Saudi Electricity Company.
Riyadh 9 power plant
The Riyadh 9 power plant, PP9, is a multi-fuel gas-turbine power station operated by the Saudi Electricity Company, about 54 km east of Riyadh on the Dammam road.
Riyadh Air (طيران الرياض)
Riyadh Air (طيران الرياض) is Saudi Arabia's new national airline, wholly owned by the Public Investment Fund, which began flying from Riyadh to London in 2026.