All articles starting with E
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Equestrian Statue of Marcus Aurelius
The Equestrian Statue of Marcus Aurelius is a gilded bronze monument of the 170s C.E. showing the Roman emperor on horseback, the only ancient Roman equestrian statue to survive, housed in the Capitoline Museums in Rome.
Equestrian statue of the Duke of Wellington, Glasgow
Equestrian statue of the Duke of Wellington, Royal Exchange Square, Glasgow: 1844 bronze by Baron Marochetti of Wellington on Copenhagen, Category A listed, famous for the traffic cone placed on its head since the 1980s.
Equestrian vaulting
Equestrian vaulting, gymnastics on horseback, also called Voltigieren: athletes perform compulsory, freestyle, and technical tests on a cantering horse lunged on a 15-metre circle; FEI-recognized since 1983, contested at the 1920 Antwerp Olympics.
Equestrianism
Equestrianism, also known as horseback riding, is the practice of riding, driving, and vaulting with horses as recreation and competitive sport, overseen by the FEI since 1921.
Equianalgesic
Equianalgesic dose: an opioid dose giving pain relief equivalent to a reference dose, usually oral or parenteral morphine. Tables guide opioid rotation but ratios vary, are unidirectional, and require 25–50% dose reduction for incomplete cross-tolerance.
Equiano (Mercurian crater)
Equiano crater, Mercury, IAU-approved 1976, named for Olaudah Equiano (c. 1750-1797), Benin-born writer and former slave. About 99-102 km wide, centered near 40 degrees south latitude; a Calorian ringed peak-cluster basin.
EquiBind
EquiBind is an SE(3)-equivariant geometric deep learning model that predicts how a drug-like ligand binds to a protein, developed at MIT and published at ICML 2022.
Equiconsistency
Equiconsistency is a relation between formal theories in which each is consistent if and only if the other is; it underlies the consistency strength hierarchy comparing theories like ZFC.
Equidae
Equidae, the horse family, is one of three living perissodactyl families: horses, donkeys, asses, and zebras, all in genus Equus. Originated in North America about 55.5 MYA; seven living species, several threatened.
Equifax
Equifax Inc., formerly the Retail Credit Company, is an American consumer credit reporting agency founded in Atlanta in 1899 that sells credit reports and scores to lenders.
EquiformerV2
EquiformerV2 is an equivariant graph transformer for 3D atomistic systems by MIT and Meta researchers, posted to arXiv in 2023, that scaled to higher-degree representations.
Equilateral triangle
An equilateral triangle, also known as an equiangular triangle, is a triangle with all three sides of equal length and three interior angles of 60 degrees, the simplest regular polygon.
Equilibrative nucleoside transporter
Equilibrative nucleoside transporters (ENTs, SLC29 family; ENT1-ENT4) are sodium-independent, bidirectional membrane transporters of nucleosides, nucleobases, and nucleoside-analog drugs, key pharmaceutical targets modulating over 30 approved drugs.
Equilibrium (Anitta album)
Equilibrium (stylized EQUILIBRIVM) is Anitta's eighth studio album, released April 17, 2026 on Floresta, Republic, and Universal Music Latino; a two-act, 32-track project rooted in Brazilian genres, candomblé, and popular traditions, followed by EQUILIBRIVM II.
Equilibrium (film)
Equilibrium (2002) is Kurt Wimmer's dystopian sci-fi action film starring Christian Bale as cleric John Preston in emotion-suppressed Libria; $20M budget, $5.4M gross, famous for Gun Kata.
Equilibrium constant
The equilibrium constant, also known as Keq, is a dimensionless number characterizing a chemical reaction's equilibrium, defined as the quotient of equilibrium activities of products over reactants, each raised to its stoichiometric coefficient.
Equilibrium II
Equilibrium II names several works: chiefly Anitta's 2026 album EQUILIBRIVM II (17 tracks, second half of a double album), plus albums by JavyDade (2021) and the trio Equilibrium, a Tangent track, and a Guðmundsson work.
Equilibrium level
The equilibrium level, also called the level of neutral buoyancy or limit of convection, is the height where a rising air parcel again equals its environment's temperature, approximating the height of thunderstorm tops.
Equilibrium line altitude
The equilibrium line altitude (ELA) is the elevation on a glacier where accumulation of snow exactly balances ablation over a year, dividing accumulation and ablation areas.
Equilibrium molecular dynamics
Equilibrium molecular dynamics (EMD) is a simulation method in which a molecular system is run at fixed thermodynamic conditions until it reaches equilibrium, and properties are extracted from the trajectory.
Equilibrium reconstruction
Equilibrium reconstruction is a computational plasma physics method that infers a tokamak plasma's MHD equilibrium state, including its flux surfaces and current profiles, from diagnostic measurements.
Equilibrium temperature
The equilibrium temperature of a planet is the temperature at which absorbed stellar power equals emitted thermal power, set by stellar luminosity, orbital distance, and albedo.
Equine anatomy
Equine anatomy: the bodily structure of the horse (Equus caballus), covering its 205-bone skeleton, single-toed unguligrade limbs, hypsodont teeth, hindgut fermentation, and large heart and lungs built for running.
Equine anesthesia and analgesia
Equine anesthesia and analgesia is the veterinary field covering anesthesia, sedation, and pain control in horses, whose anesthetic mortality of about 1% far exceeds that of dogs and cats.
Equine coat color
Equine coat color: horse pigmentation genetics. Base colors chestnut, bay, black from MC1R and ASIP; dilution genes cream (SLC45A2), dun, silver, champagne, pearl, mushroom; white patterns tobiano, overo, roan, gray; health links MCOA, lethal white overo.
Equine drug testing
Equine drug testing analyzes blood, urine, and other samples from racehorses to detect prohibited substances under IFHA harmonised rules and, since May 2023, the uniform HISA/HIWU program in the United States.
Equine herpesvirus
Equine herpesviruses are DNA viruses that infect horses, chiefly EHV-1 and EHV-4, causing respiratory disease, abortion, and the sometimes fatal neurological syndrome equine herpesvirus myeloencephalopathy.
Equine infectious anaemia
Equine infectious anaemia (EIA, swamp fever) is a lifelong, bloodborne lentiviral infection of equids spread by biting flies and contaminated equipment. No treatment or vaccine exists; control relies on the Coggins serological test and quarantine or euthanasia of carriers.
Equine influenza
Equine influenza (EI), a highly contagious respiratory disease of horses and other equids caused by H3N8 (and formerly H7N7) influenza A viruses; notifiable to WOAH, with mean vaccine efficacy about 50% and annual vaccine strain review since 1995.
Equine intelligence
Equine intelligence: the learning, memory, problem-solving, and social cognition of the domestic horse (Equus caballus), including sensitivity to human cues, the Clever Hans effect, cognition-welfare links, and AI welfare monitoring.