All articles starting with R
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REC Group
REC Group is a solar panel manufacturer founded in 1996 in Oslo, Norway, with operational headquarters in Singapore, and wholly owned by Reliance Industries since 2021.
REC Silicon
REC Silicon is a Norwegian producer of high-purity silane gas and silicon materials for semiconductor, display, solar, and battery industries, with US plants in Moses Lake and Butte.
Rec. 118
Rec. 118 is a French urban music record label founded in 2016 by William Edorh within Warner Music France, best known for Aya Nakamura and Ninho.
Rec. 2020
Rec. 2020, formally Recommendation ITU-R BT.2020, is the ITU standard defining pixel counts, frame rates, and colorimetry for 4K and 8K ultra-high definition television, approved in August 2012.
Rec. 709
Rec. 709, formally Recommendation ITU-R BT.709, is the international standard for high-definition television production and program exchange, first agreed in 1993 and the basis of sRGB.
Recados
Recados are the prose and verse "messages" of Chilean poet Gabriela Mistral, meaning "a letter for many," published in newspapers across the Americas and Europe from 1919 to 1952.
Recaizade Mahmud Ekrem
Recaizade Mahmud Ekrem (Recâizâde Mahmud Ekrem, 1847–1914) was an Ottoman poet, playwright, novelist, critic, and civil servant, remembered as teacher of the Servet-i Fünun writers and author of Araba Sevdası, the first realist Turkish novel.
Recall (memory)
Recall (memory): generating stored information without the item present as a cue, contrasted with recognition. Covers free recall, cued recall, encoding specificity, the testing effect, and clinical recall-versus-recognition testing.
Recall election
Recall election: also called recall referendum; a petition-driven vote to remove an official mid-term. 19 US states plus DC allow it for state officials; first adopted in Los Angeles 1903; only four gubernatorial recalls have qualified.
Recall test
A recall test measures memory by asking a person to reproduce previously learned material from memory, including free recall without cues and cued recall with a cue at test.
Recanalization
Recanalization is the reopening of an occluded blood vessel, the central goal of stroke reperfusion therapy, achieved through thrombolysis or mechanical thrombectomy within hours of onset.
Recapitulation theory
Recapitulation theory, Haeckel's 1866 biogenetic law that ontogeny recapitulates phylogeny, claimed embryos repeat ancestral adult stages; the strong form is rejected, with the hourglass model and partial recapitulation trends studied today.
ReCAPTCHA
reCAPTCHA is a CAPTCHA system that tells humans from bots, created by Luis von Ahn at Carnegie Mellon in 2007 and acquired by Google in 2009.
Recaptive settlement in Sierra Leone
Recaptive settlement in Sierra Leone was the resettlement of Africans freed from slave ships by the Royal Navy in villages around Freetown between 1808 and 1863.
Recapture of Pernambuco
The Recapture of Pernambuco (Insurreição Pernambucana), also called the Restoration War, was the 1645–1654 Luso-Brazilian revolt that expelled the Dutch from northeastern Brazil, ending with their surrender at Recife.
Recapture of Recife
The Siege of Recife (Cerco do Recife) was the encirclement and capture of the Dutch-held port of Recife, Pernambuco, Brazil, ending Dutch Brazil in 1654.
Recaticimab injection
Recaticimab (艾心安, AiXinAn; SHR-1209) is a long-acting humanized IgG1 anti-PCSK9 monoclonal antibody with an Fc YTE mutation, approved in China in 2025 for hypercholesterolemia and mixed dyslipidemia, dosed every 4 to 12 weeks.
RecBCD enzyme subunit RecB
RecB is the 134 kDa subunit of the E. coli RecBCD helicase-nuclease: a slow 3'→5' helicase motor carrying the complex's nuclease domain, which cuts at Chi sites and loads RecA; recB mutants are recombination deficient and DNA-damage sensitive.
RecBCD enzyme subunit RecC
RecC, the 129-kDa subunit of the E. coli RecBCD helicase-nuclease, forms tunnels that thread DNA strands, stimulates RecB processivity, recognizes Chi hotspots, and is a catalytically dead helicase-nuclease from gene duplication.
RecBCD enzyme subunit RecD
RecD is the 67-kDa 5'→3' helicase subunit of the E. coli RecBCD helicase-nuclease, the fast motor on the 5'-ended strand that RecC signals to stop at Chi sites; recD mutants lack nuclease activity but stay recombination proficient.
Recbio Technology (瑞科生物)
Recbio Technology (瑞科生物) is a Chinese vaccine company in Taizhou, Jiangsu, listed in Hong Kong in 2022, known for its recombinant nine-valent HPV vaccine REC603.
Reccared I
Reccared I (Recared, died 601), Visigothic king of Spain 586–601 and son of Leovigild, converted from Arianism to Catholicism c. 587–589, convoked the Third Council of Toledo in 589, and issued early anti-Jewish legislation.
Recce
Recce (రెక్కీ) is a 2022 ZEE5 Telugu crime thriller web series, 7 episodes, directed by Poluru Krishna, about sub-inspector Lenin investigating the 1990s murder of Tadipatri municipal chairman Varadarajulu.
RECCE 327 topical gel (R327G)
RECCE 327 topical gel (R327G) is a synthetic acrolein polymer anti-infective gel from Recce Pharmaceuticals, in registrational Phase 3 trials for diabetic foot infections in Indonesia and Australia, with Phase II ABSSSI efficacy of 93%.
Rece Davis
Rece Davis (William Laurece Davis, born 1965) is an ESPN host since 1995 and host of College GameDay since 2015, its third host; also hosts College Football Playoff, NBA Draft, and 2026 Wimbledon coverage.
Rece Hinds
Rece Hinds (Rece Xola Hinds), outfielder born 2000, Reds 2019 second-round pick (49th overall) with 70-grade power and arm; historic July 2024 MLB debut week, 2025 IL All-Star at Louisville, traded to Miami Marlins in May 2026.
Receipt
A receipt, also called a sales slip, is a printed or digital document recording a completed sale and serving as proof of purchase for returns, warranties, and expenses.
Receivables turnover
Receivables turnover is a financial ratio, computed as sales divided by average receivables, that measures how quickly credit customers pay, often expressed as days sales outstanding.
Received Pronunciation
Received Pronunciation (RP), also called the Queen's English or BBC English, is the prestige accent of southern British English, codified by Daniel Jones in 1926 and adopted by the BBC, now largely replaced by Standard Southern British English.
Received signal strength indicator
Received signal strength indicator (RSSI) is a figure reported by a radio receiver's physical layer representing total power observed at the antenna, used in Wi-Fi and other radio standards.