All articles starting with a number or symbol
13,599 articles
5xFAD mouse
The 5xFAD mouse, also written Tg6799, is a transgenic laboratory mouse with five Alzheimer's disease mutations that develops amyloid plaques within two months of birth.
5Y Capital Evolution (五源资本)
5Y Capital Evolution (五源资本) is a family of Cayman Islands-domiciled venture capital funds managed by 5Y Capital, the Shanghai firm formerly known as Morningside Venture Capital.
5yrGH study
5yrGH (NCT00462475), Effect of 5 Years of GH Replacement on Atherosclerosis, a phase 4 observational study at Federico II University, Naples, led by Annamaria Colao, showing 5 years of GH replacement reduced carotid IMT and insulin-resistance syndrome in men with severe GHD.
5α-Reductase
5α-Reductase (SRD5A1-3) is the NADPH-dependent enzyme converting testosterone to the more potent androgen DHT; its deficiency causes the guevedoces phenotype, and its inhibitors finasteride and dutasteride treat BPH and hair loss.
5α-Reductase 2 deficiency (αR2D)
5α-Reductase 2 deficiency (5α-RD2, PPSH) is a rare autosomal recessive 46,XY disorder of sex development caused by SRD5A2 mutations impairing testosterone-to-DHT conversion, causing undervirilized external genitalia with pubertal virilization.
6 (New York City Subway service)
The 6 Lexington Avenue Local is a New York City Subway service running at all times from Pelham Bay Park in the Bronx to Brooklyn Bridge–City Hall in Manhattan.
6 (number)
6 is the natural number following 5 and preceding 7, the smallest perfect number, equal to 1 + 2 + 3, and also the third triangular number.
6 Below: Miracle on the Mountain
6 Below: Miracle on the Mountain (2017) is a Scott Waugh survival drama starring Josh Hartnett as Eric LeMarque, a hockey player stranded eight days on Mammoth Mountain in 2004, losing his legs to frostbite.
6 Days (2017 film)
6 Days is a 2017 British political thriller directed by Toa Fraser, starring Mark Strong, Jamie Bell, and Abbie Cornish, dramatizing the 1980 Iranian Embassy siege in London.
6 Degrees Capital
6 Degrees Capital is an Antwerp-based early-stage venture capital firm investing in enterprise software, AI, and fintech at Seed to Series A; its €154 million third fund closed in 2025.
6 February 1934 crisis
The 6 February 1934 crisis (journée du 6 février 1934) was a Paris riot by far-right leagues and veterans over the Stavisky affair and Chiappe's removal; 15 officially died, Daladier fell on 7 February, and the shock led to the Popular Front.
6 GHz band
The 6 GHz band is the 1,200 MHz of radio spectrum from 5.925 to 7.125 GHz, opened for unlicensed Wi-Fi 6E and Wi-Fi 7 in the US in 2020.
6 Hebe
6 Hebe is a large S-type main-belt asteroid, discovered by Karl Ludwig Hencke in 1847, proposed as the parent body of the H chondrite and IIE iron meteorites.
6 January Dictatorship
The 6 January Dictatorship was the royal dictatorship of King Alexander I in the Kingdom of Serbs, Croats and Slovenes, proclaimed on 6 January 1929 by suspending the constitution and banning political parties.
6 Kiss (album)
6 Kiss is Lil B's second solo mixtape, released December 22, 2009 on Permanent Marks/BasedWorld. Produced mainly by Clams Casino and Keyboard Kid, its 22 cloud-rap tracks including "I'm God" made it a foundational release, ranked 89th on Pitchfork's best rap albums list.
6 Lyn
6 Lyn (6 Lyncis, HD 45410) is a K0 IV subgiant 182 light-years away in Lynx hosting 6 Lyn b, a confirmed gas giant of about 1.9 Jupiter masses in a 920-day, 2.03 au orbit, found by radial velocity in 2008.
6 October power plant
The 6 October power plant (محطة كهرباء 6 أكتوبر) is a natural gas-fired power station of about 1,519 MW in Abu Rawash, 6th October City, Giza Governorate, Egypt.
6 River Systems
6 River Systems is an American warehouse robotics company founded in 2015 in Waltham, Massachusetts, whose collaborative robot Chuck assists human pickers; it was acquired by Shopify in 2019.
6 Underground (film)
6 Underground is a 2019 Michael Bay action thriller on Netflix, starring Ryan Reynolds as a billionaire who fakes his death and leads six numbered operatives against a dictator; 83 million households watched in four weeks.
6 Years
6 Years is a 2015 American indie romantic drama by Hannah Fidell, starring Taissa Farmiga and Ben Rosenfield as a couple whose six-year relationship turns volatile; premiered at SXSW and released on Netflix August 18, 2015.
6-5=2
6-5=2 (೬-೫=೨) is a 2013 Kannada found-footage horror film directed by debutant K S Ashoka, about six trekkers of whom five never return; a surprise Rs 5 crore blockbuster remade in Hindi in 2014.
6-7
6-7 (six seven, 67) is a meaningless viral catchphrase and palms-up seesaw hand gesture from Skrilla's 2024 song "Doot Doot (6 7)", spread via LaMelo Ball edits and Dictionary.com's 2025 Word of the Year.
6-Aminohexanoic acid
6-Aminohexanoic acid, also called ε-aminocaproic acid or EACA, is a synthetic omega-amino acid that serves as the antifibrinolytic drug aminocaproic acid and the nominal monomer of nylon 6.
6-APB
6-APB, sold as Benzo Fury, is a synthetic benzofuran designer drug of the amphetamine family, first detected in Europe in 2011 and controlled in the UK as Class B.
6-Benzylaminopurine
6-Benzylaminopurine, also called 6-benzyladenine or 6-BA, is a synthetic adenine-derived cytokinin plant growth regulator, synthesized after kinetin's 1955 discovery and widely used for shoot formation in plant tissue culture and for thinning apples and pears.
6-Carboxyfluorescein
6-Carboxyfluorescein (6-FAM, CAS 3301-79-9) is a fluorescein derivative carrying an additional carboxylic acid group, used chiefly as a green fluorescent label for oligonucleotides and other biomolecules.
6-Cyano-7-nitroquinoxaline-2,3-dione
6-Cyano-7-nitroquinoxaline-2,3-dione (CNQX), also called FG 9065, is a synthetic quinoxalinedione that competitively blocks AMPA and kainate receptors, first reported in Science in 1988 and widely used to study synaptic transmission.
6-DoF grasp detection
6-DoF grasp detection is the robotic vision task of predicting a full six-degree-of-freedom gripper pose for grasping an object from sensor data such as a depth image or point cloud.
6-Hydroxydopamine
6-Hydroxydopamine, also known as oxidopamine or 6-OHDA, is a selectively toxic dopamine analog that does not cross the blood-brain barrier and is injected into the brain to create animal models of Parkinson's disease.
6-Ketoprostaglandin F1 alpha
6-Ketoprostaglandin F1 alpha (6-keto-PGF1α) is the stable, biologically inactive product formed when prostacyclin decomposes within seconds, making it the compound measured as a marker of prostacyclin production.