519,064 articles
ARRB2
ARRB2 (arrestin beta 2, also called arrestin-3 or beta-arrestin-2) is a human chromosome 17p13.2 gene encoding a 409-amino-acid scaffold protein that desensitizes GPCRs, drives clathrin-mediated receptor internalization, and scaffolds MAPK, JNK, and other signaling pathways.
ArrDee
ArrDee is the stage name of Riley Jason Davies (born 2002), a British rapper from Brighton known for the viral Body remix verse, the number 2 mixtape Pier Pressure (2022), and multiple UK Top 10 singles.
Arrears
Arrears (arrearages) are accumulated debts unpaid past their due date, covering rent, mortgage, child support, and tax arrears; also the accounting sense of payments due at period end, from Old French ariere, behind.
Arrecife Alacranes Biosphere Reserve
Arrecife Alacranes Biosphere Reserve (Scorpion Reef), UNESCO MAB site 2006, protects the largest coral structure in the Gulf of Mexico, ~140 km off Yucatán, with five islands, 34 coral species, and a national park with no-take zones.
Arrernte oral literature
Arrernte oral literature is the spoken, sung, signed, and drawn storytelling tradition of the Arrernte people of Central Australia, whose country centers on Alice Springs and the Macdonnell Ranges.
Arrest
Arrest: taking a person into custody to answer charges. Also called custodial detention; governed by warrant rules, probable cause, Article 22 safeguards in India, Fourth Amendment standards in the US, and prompt judicial review.
Arrest and deportation of Toussaint Louverture
The arrest and deportation of Toussaint Louverture (Arrestation de Toussaint Louverture) was the French seizure of Saint-Domingue's governor general in 1802, who died imprisoned at the fort de Joux.
Arrest and indictment of Pavel Durov
Arrest and indictment of Pavel Durov: Telegram's founder-CEO was detained 24 August 2024 at Le Bourget, France, and placed under formal investigation 28 August on 12 charges of platform complicity in organized crime, with 5 million euro bail.
Arrest convention
An arrest convention is a multilateral treaty unifying when a ship may be judicially arrested as security for a maritime claim; the 1952 Brussels and 1999 Geneva conventions govern it.
Arrest of Ekrem İmamoğlu
Arrest of Ekrem İmamoğlu: detention of Istanbul's CHP mayor on 19 March 2025 and formal arrest on corruption charges on 23 March, days after his university diploma was annulled, triggering mass protests and market turmoil.
Arrest of Feodosia Morozova
The arrest of Feodosia Morozova (Дело боярыни Морозовой) was the 1671 arrest in Moscow of the boyarynya who refused the Russian Orthodox Church reforms; tortured, she died of hunger in 1675.
Arrest of Jesus
The arrest of Jesus, also called the arrest of Christ, is his nighttime capture in a garden on the Mount of Olives after the Last Supper, with Judas identifying him by a kiss.
Arrest of Lavrenty Beria
The arrest of Lavrenty Beria (Арест Берии) took place in Moscow on 26 June 1953, when Marshal Zhukov and armed officers seized him at a Presidium meeting.
Arrest of Marcy Rheintgen
March 19, 2025 arrest of Marcy Rheintgen, a 20-year-old transgender woman from Illinois, for trespassing after using a women's restroom at the Florida Capitol under HB 1521; the first known arrest under such a ban, dismissed June 20, 2025 on speedy-trial grounds.
Arrest of Rodrigo Duterte
Arrest of Rodrigo Duterte: former Philippine president detained 11 March 2025 in Manila on an ICC warrant for the crime against humanity of murder over his drug war; first former Asian head of state arrested by the ICC; charges confirmed April 2026.
Arrest of the Gang of Four
The Arrest of the Gang of Four (粉碎四人帮) was the seizure of Wang Hongwen, Zhang Chunqiao, Jiang Qing, and Yao Wenyuan in Beijing on 6 October 1976.
Arrest of Yoon Suk Yeol
Arrest of Yoon Suk Yeol: the January 15, 2025 CIO detention of South Korea's impeached president at his Seoul residence, the first sitting presidential arrest, after a failed January 3 attempt and a martial law warrant.
Arrest warrant
Arrest warrant: a judicial order authorizing an officer to arrest a named person, issued on probable cause. Covers U.S. federal Rule 4, warrantless arrests (Watson 1976), general warrants, bench, administrative, European, ICC, and geofence warrants.
Arrested Development
Arrested Development, also called AD, is Mitchell Hurwitz's single-camera Fox sitcom (2003–2006) about the dysfunctional Bluth family, narrated by Ron Howard, cancelled after three seasons and revived by Netflix in 2013 and 2018–2019.
Arrested Development (group)
Arrested Development, the Atlanta alternative hip-hop group founded in 1988 by Speech and Headliner, won 1993 Grammys for Best New Artist and "Tennessee," released the multi-platinum debut 3 Years, 5 Months & 2 Days in the Life Of…, and still tours as a full band.
Arrestin
Arrestins (visual arrestin 1 and 4; β-arrestins 1 and 2) are cytosolic adaptor proteins that desensitize GRK-phosphorylated GPCRs, mediate receptor endocytosis, and scaffold ERK, Src, and JNK signaling.
Arresting gear
Arresting gear, also called arrester gear or arresting wire, is a system of cables and energy absorbers that stops landing aircraft, standard equipment on aircraft carriers.
Arrhenatherum
Arrhenatherum (oatgrass, false oat-grasses) is a genus of seven accepted perennial grasses in Poaceae, Aveninae, native from Macaronesia and Europe to Central and West Asia and NW Africa; its best-known species is A. elatius, tall oatgrass.
Arrhenatherum elatius
Arrhenatherum elatius, false oat-grass or tall oatgrass (Avena elatior), a perennial Poaceae grass native from Europe to Iran, grown for hay and pasture; the bulbous subspecies bulbosum is the arable weed onion couch.
Arrhenius (Martian crater)
Arrhenius is a roughly 129-km-wide impact crater in the southern hemisphere of Mars, centered near 39.97°S, 122.6°E, named for Swedish physical chemist Svante Arrhenius and IAU-approved in 1973.
Arrhenius equation
The Arrhenius equation, or Arrhenius law, is a chemical kinetics equation relating a reaction's rate constant to absolute temperature, proposed by Svante Arrhenius in 1889.
Arrhythmia
Arrhythmia (irregular heartbeat): a disorder of heart rate or rhythm from conduction-system faults. Types include bradycardia, tachycardia, atrial fibrillation, and ventricular fibrillation; diagnosed by ECG, treated with drugs, devices, and ablation.
Arrhythmogenic cardiomyopathy
Arrhythmogenic cardiomyopathy (ACM), formerly ARVC, is an inherited heart muscle disease with fibro-fatty myocardial replacement, ventricular arrhythmias, and sudden death risk; diagnosed by 1994/2010 Task Force and 2020 Padua criteria.
Arri Alexa
Arri Alexa: ARRI's digital cinema camera family launched in 2010, built on ALEV CMOS sensors with Dual Gain Architecture; spans Classic, Mini, 65, LF, Mini LF, and the 2022 ALEXA 35 with 17 stops and REVEAL Color Science.
Arri Coomarasamy
Arri Coomarasamy is a British gynaecologist and clinical trialist, Professor at the University of Oxford and Director of Tommy's National Centre for Miscarriage Research, Europe's largest miscarriage research center.