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Symbionese Liberation Army
Symbionese Liberation Army (SLA), leftist revolutionary group active in California 1973-1975; kidnapped heiress Patty Hearst in February 1974, robbed the Hibernia Bank, and lost six members in the 1974 Los Angeles SWAT shootout.
Symbiosis
Symbiosis, from de Bary's 1879 definition, is any close long-term interspecies interaction, spanning mutualism, commensalism, and parasitism, now widely treated as a context-dependent continuum rather than fixed categories.
Symbiote (comics)
A symbiote (Klyntar) is a fictional alien life-form in Marvel Comics that bonds with a host as a living costume, producing Venom and Carnage after beginning as Spider-Man's 1984 black suit.
Symbiotic organisms search
Symbiotic organisms search (SOS) is a parameter-free metaheuristic optimization algorithm, introduced by Cheng and Prayogo in 2014, that improves candidate solutions through mutualism, commensalism, and parasitism phases.
Symbol
Symbol: in semiotics, a sign related to its object by convention, as in Peirce's icon-index-symbol triad; also a near-synonym for sign, a Unicode character category, and an AI representation.
Symbol Digit Modalities Test
The Symbol Digit Modalities Test (SDMT) is a brief neuropsychological test of processing speed in which symbols are matched to digits, scored 0 to 110.
Symbol of Chaos
Symbol of Chaos, also Chaos Star or Chaosphere: eight arrows radiating from a central point. Invented by Michael Moorcock in Stormbringer (1961), later adopted by Chaos Magick (Carroll, Sherwin, IOT) and Games Workshop's Warhammer; not an ancient symbol.
Symbol rate
Symbol rate, also called the baud rate or modulation rate, is the number of symbols transmitted per second in a digital communication system, measured in baud.
Symbol-level precoding
Symbol-level precoding (SLP) is a transmit signal-processing technique for multi-antenna wireless systems that designs waveforms per symbol, exploiting known data symbols and channel state to make interference constructive.
Symbolic (Death album)
Symbolic (1995) is the sixth studio album by Florida death metal band Death, released on Roadrunner Records. Written by Chuck Schuldiner with Gene Hoglan, Kelly Conlon and Bobby Koelble, recorded at Morrisound, Tampa; intended as the band's final album.
Symbolic Capital
Symbolic Capital is a Web3 venture capital firm launched in May 2022 by Polygon co-founder Sandeep Nailwal and Cere Network co-founder Kenzi Wang, focused on early-stage consumer decentralized applications.
Symbolic dynamics
Symbolic dynamics is a branch of dynamical systems theory that studies infinite sequences of symbols over a finite alphabet under the shift map, used to code continuous systems.
Symbolic dysfunctions
Symbolic dysfunctions (ICD-11 MB4B, 表象機能の障害) is a WHO ICD-11 category grouping acquired losses of reading, calculation, writing, naming, and recognition (alexia, acalculia, agraphia, anomia, agnosia), excluding developmental learning disorder.
Symbolic execution
Symbolic execution is a program analysis technique that runs software with symbolic values standing for arbitrary inputs, exploring execution paths and generating test inputs that reach them.
Symbolic integration
Symbolic integration computes an exact closed-form antiderivative of a mathematical expression rather than a numerical approximation, a core capability of computer algebra systems built on the Risch algorithm.
Symbolic interactionism
Symbolic interactionism, coined by Herbert Blumer in 1937 and rooted in George Herbert Mead's pragmatism, is a micro-level sociological theory explaining behavior through meanings built in interaction, with Chicago and Iowa schools and labeling theory.
Symbolic link
A symbolic link, also called a symlink or soft link, is a file storing another file or directory's pathname, resolved when the link is followed; it was introduced in 4.2BSD in 1983.
Symbolic method (combinatorics)
The symbolic method is a technique in enumerative combinatorics for translating formal definitions of combinatorial objects into generating functions, systematized by Philippe Flajolet and Robert Sedgewick.
Symbolic regression
Symbolic regression (SR) is a machine learning task that searches for both the form and parameters of a mathematical expression fitting data, returning explicit equations.
Symbolics
Symbolics was an American computer company founded in 1980 to build Lisp machines, spinning out of MIT's AI Lab and registering symbolics.com, the first .com domain, in 1985.
Symbolism (arts)
Symbolism (arts): late nineteenth-century French literary and artistic movement founded around Jean Moréas's 1886 manifesto, using suggestive symbols over realist description; influenced Gauguin, Munch, Klimt, theater, and Expressionism.
Symbolism in Brazil
Symbolism in Brazil (Simbolismo brasileiro) was a literary movement that brought the French Symbolist aesthetic into Brazilian poetry, definitively begun in 1893 by João da Cruz e Sousa.
Symbolist theatre
Symbolist theatre is a late 19th-century French movement that rejected realistic staging in favor of suggestion, poetic language, and inner realities, with Maurice Maeterlinck as its emblematic playwright.
Symbols of death
Symbols of death, also called death symbolism, are images and objects like the skull, scythe, raven, hourglass, and Grim Reaper that cultures use to represent mortality.
Symbols of Islam
Symbols of Islam, also known as Islamic symbols, include the star-and-crescent, an Ottoman inheritance absent from the Quran, the color green, and calligraphic emblems like the shahada.
Symbols of Manchester
Symbols of Manchester, chiefly the worker bee adopted with the 1842 coat of arms, plus the sailing ship, antelope, lion, and motto Concilio et Labore; the bee became a unity symbol after the 2017 Arena attack and is now trademarked by the council.
Symbols of the United States Senate
Symbols of the United States Senate: the Senate Seal (third design since 1789, 1885 Dreka seal still in use), the navy blue Senate Flag (1988), ivory gavels instead of a mace, and the Old Senate Chamber Eagle and Shield.
Symbotic
Symbotic is an American warehouse automation company based in Wilmington, Massachusetts, founded by Rick Cohen in 2007, best known for AI-powered robotic systems deployed across Walmart's distribution centers.
Symbrion
Symbrion (Symbiotic Evolutionary Robot Organisms) was a European research project from 2008 to 2013, coordinated by the University of Stuttgart, that studied robot swarms docking into reconfigurable, resource-sharing organisms.
Symeon I
Symeon I was a monk from Trebizond who served three non-consecutive terms as Ecumenical Patriarch of Constantinople under Ottoman rule, and in 1484 he convened the council that condemned the Union of Florence.