519,064 articles
AutoGen
AutoGen is an open-source Microsoft framework, released in fall 2023, for building LLM applications from multiple conversing agents; rewritten in 2025, it entered maintenance mode in 2026.
Autogenic training
Autogenic training is a self-relaxation technique developed by Johannes Heinrich Schultz in 1920, in which repeated verbal formulas induce calm and are studied for stress, anxiety, and chronic pain.
Autogenous pressurization
Autogenous pressurization, also called self-pressurization, maintains pressure in a liquid rocket propellant tank by vaporizing some of its own cryogenic propellant instead of storing external gas like helium.
AutoGLM
AutoGLM is a consumer software agent from Zhipu AI (Z.ai) that operates phone and computer interfaces on a user's behalf, launched in October 2024 as part of the ChatGLM family.
AutoGPT
AutoGPT is an open-source autonomous AI agent released on GitHub in March 2023 by Toran Bruce Richards of Significant Gravitas, letting GPT-4 pursue user-set goals without per-step prompting.
Autograph (2004 film)
Autograph (ஆட்டோகிராப்) is a 2004 Tamil drama-romance written, directed, produced by and starring Cheran as Senthil, an ad executive revisiting three women from his past while distributing wedding invitations; it won three National Film Awards and four Filmfare Awards South.
Autograph (American band)
Autograph is an American glam metal band formed in 1983 in Los Angeles, known for the 1984 gold album Sign in Please and the hit Turn Up the Radio; it opened for Van Halen's 1984 tour and later re-formed without Steve Plunkett.
Autogyro
An autogyro, also called a gyrocopter or gyroplane, is a rotorcraft lifted by an unpowered spinning rotor that cannot hover, first flown by Juan de la Cierva in 1923.
AutoGyro Calidus
The AutoGyro Calidus is a two-seat enclosed-cabin tandem gyroplane produced by AutoGyro GmbH of Germany, released in 2009 as the world's first formally certified factory-built gyroplane of this configuration.
AutoGyro GmbH
AutoGyro GmbH is a German gyroplane manufacturer based in Hildesheim, Lower Saxony, founded in 2003, which has delivered more than 3,200 aircraft in over 40 countries.
Autoharp
Autoharp: a chord zither with spring-loaded felted chord bars that mute all strings except the chosen chord, typically 36-37 strings. Invented by Karl August Gütter, Germany; name patented by Charles Zimmermann, Philadelphia, 1882; associated with the Carter Family and American folk music.
AutoHaul
AutoHaul is the fully autonomous heavy-haul freight train system Rio Tinto operates on its Pilbara iron ore railway in Western Australia, the world's first autonomous heavy-haul rail network.
Autohemotherapy
Autohemotherapy is a treatment in which a patient's own blood is withdrawn and reinjected, either unchanged or after exposure to ozone; its effectiveness is contested for lack of evidence.
Autohesion
Autohesion, also called self-bonding or healing, is the bonding that forms when two pieces of the same polymer touch, as chains interdiffuse and entangle across the interface.
Autohome (汽车之家)
Autohome (汽车之家) is a Beijing-based Chinese online automotive media and transaction-services platform founded in 2005 by Li Xiang and listed on the New York and Hong Kong stock exchanges.
AutoHotkey
AutoHotkey is a free, open source automation utility for Windows, started in 2003 by Chris Mallett, whose scripting language defines keyboard shortcuts, text expansions, and graphical interfaces.
Autoignition temperature
The autoignition temperature, also called the kindling point or self-ignition temperature, is the lowest temperature at which a material ignites in air without a spark or flame.
Autoimmune disease
Autoimmune disease: immune system mistakenly attacks the body's own healthy tissue; over 80 to 140 named types, 23.5-50 million Americans affected, mostly women; includes lupus, rheumatoid arthritis, type 1 diabetes.
Autoimmune encephalopathy with parasomnia and obstructive sleep apnea
Anti-IgLON5 disease, also called autoimmune encephalopathy with parasomnia and obstructive sleep apnea, is a rare autoimmune encephalitis with IgLON5 antibodies causing parasomnias, sleep apnea, bulbar dysfunction, and a secondary tauopathy.
Autoimmune gastritis
Autoimmune gastritis (AIG, type A gastritis): chronic autoimmune destruction of gastric parietal cells in the corpus, causing achlorhydria, intrinsic factor antibodies, vitamin B12 deficiency, pernicious anemia, and raised gastric cancer risk.
Autoimmune heart disease
Autoimmune heart disease is heart damage caused by the immune system attacking the body's own cardiac tissue, as organ-specific myocarditis or alongside systemic autoimmune diseases like lupus.
Autoimmune hemolytic anemia
Autoimmune hemolytic anemia (AIHA), including warm AIHA and cold agglutinin disease, is a rare disorder in which autoantibodies destroy red blood cells; diagnosed by the Coombs test, treated with steroids, rituximab, and newly nipocalimab.
Autoimmune hemolytic anemia, warm type
Warm autoimmune hemolytic anemia is an autoimmune disorder in which IgG antibodies destroy red blood cells at body temperature, causing anemia; treated first with corticosteroids.
Autoimmune heparin-induced thrombocytopenia
Autoimmune heparin-induced thrombocytopenia (aHIT) is a severe HIT subtype with heparin-independent, platelet-activating anti-PF4 IgG antibodies, causing delayed-onset, refractory, flush, fondaparinux, or unusually severe HIT needing IVIG.
Autoimmune hepatitis
Autoimmune hepatitis (AIH) is a chronic immune-mediated liver disease of unknown cause, affecting all ages with female predominance (71-95% of adults). Diagnosed via IgG, autoantibodies, histology, and exclusion; treated with corticosteroids and azathioprine.
Autoimmune hypoparathyroidism
Autoimmune hypoparathyroidism (ORPHA:36913, APECED-related hypoparathyroidism) is autoimmune destruction of the parathyroids causing hypocalcemia, hyperphosphatemia, and low PTH; the most common nonsurgical cause, usually within APS-1 (AIRE mutations).
Autoimmune inner ear disease
Autoimmune inner ear disease (AIED) is a rare immune-mediated disorder causing progressive, usually bilateral sensorineural hearing loss over weeks to months; first described by McCabe in 1979 and treated first with corticosteroids.
Autoimmune interstitial lung disease-arthritis syndrome
Autoimmune interstitial lung disease-arthritis syndrome, or COPA syndrome, is a rare autosomal dominant immune dysregulation disorder caused by COPA gene mutations, causing childhood interstitial lung disease, arthritis, autoantibodies, and often kidney disease.
Autoimmune keratitis
Autoimmune keratitis (ICD-11 9A75) is immune-mediated corneal inflammation, chiefly peripheral ulcerative keratitis, linked to rheumatoid arthritis, Sjögren syndrome, SLE, and ANCA vasculitis; treated with systemic immunosuppression and surgery for perforation.
Autoimmune lymphoproliferative syndrome
Autoimmune lymphoproliferative syndrome (ALPS, Canale-Smith syndrome) is a rare genetic immune disorder caused by defective FAS-mediated apoptosis, causing chronic lymphoproliferation, autoimmune cytopenias, elevated double-negative T cells, and increased lymphoma risk.