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All articles starting with S

44,216 articles

SHORT syndrome

SHORT syndrome is a rare autosomal dominant genetic disorder caused by PIK3R1 variants, first described in 1975, marked by short stature, distinctive facial features, teething delay, and insulin resistance.

Short Term 12

Short Term 12 (2013) is Destin Daniel Cretton's independent drama, expanded from his Sundance-winning short, about foster-care supervisor Grace (Brie Larson); it won SXSW's Grand Jury and Audience Awards on a $400,000 budget.

Short ton

The short ton, also called the net ton, is the U.S. customary unit of mass equal to exactly 2,000 pounds, about 10 percent lighter than the British long ton.

Short track speed skating at the Asian Winter Games

Short track speed skating has been part of the Asian Winter Games program since 1990, offering nine gold medals at Harbin 2025, where South Korea won six.

Short track speed skating at the Winter Olympics

Short track speed skating at the Winter Olympics is a sport, a medal event since Albertville 1992, where groups of skaters race anticlockwise around a 111.12 m indoor oval.

Short track speed skating at the Winter Universiade

Short track speed skating has been part of the Winter Universiade since the 1985 edition in Belluno, Italy, run by FISU under International Skating Union technical rules.

Short Tucano

The Short Tucano, also known as the Tucano T1, is a two-seat turboprop trainer built in Belfast for the RAF from a modified Embraer EMB-312, serving from 1989 to 2019.

Short-barreled rifle

A short-barreled rifle, also called a sawed-off rifle, is a rifle with a barrel under 16 inches, regulated under the National Firearms Act of 1934.

Short-Baseline Neutrino Program

The Short-Baseline Neutrino Program is a Fermilab neutrino oscillation experiment with three liquid argon detectors on the Booster Neutrino Beam, built to test whether a sterile neutrino explains long-standing anomalies.

Short-beaked echidna

The Short-beaked echidna (Tachyglossus aculeatus) is an egg-laying monotreme found throughout Australia, New Guinea, and offshore islands, and is the most widespread native mammal in those countries.

Short-chain dehydrogenase

Short-chain dehydrogenases/reductases (SDRs) are a huge NAD(P)(H)-dependent oxidoreductase superfamily with Rossmann-fold structure, TGxxxGxG cofactor motif, and YxxxK catalytic tetrad, found across all life domains.

Short-chain fatty acid

Short-chain fatty acids (SCFAs), chiefly acetate, propionate, and butyrate, are under-six-carbon fatty acids made by gut bacterial fermentation of fiber, signaling via FFAR2/3 and HDAC inhibition.

Short-channel effect

The short-channel effect (SCE) is the loss of gate control over a MOSFET's channel as gate length shrinks, causing threshold voltage roll-off, drain-induced barrier lowering, and higher leakage.

Short-circuit analysis

Short-circuit analysis is an electrical engineering method for calculating fault currents and voltages in a power system, used to size protective devices and verify equipment ratings.

Short-circuit breaking capacity

Short-circuit breaking capacity is the maximum fault current a circuit breaker or fuse can safely interrupt at its rated voltage, called interrupting capacity in North America.

Short-circuit evaluation

Short-circuit evaluation, also called McCarthy evaluation, is an evaluation strategy for boolean expressions that skips the second operand of a logical AND or OR when the first already determines the result.

Short-circuit ratio

The short-circuit ratio (SCR) is a power system metric that quantifies the strength of an AC grid at a point of interconnection, with low values indicating a weak system.

SHORT-ESD trial

SHORT-ESD (NCT05347446) was a five-center US randomized trial comparing hybrid ESD, knife dissection plus snare resection, with conventional ESD for 20–50 mm nonpedunculated colorectal lesions: shorter procedure time (41.1 vs 54.3 min) but numerically lower en bloc and R0 rates.

Short-lived climate pollutant

A short-lived climate pollutant (SLCP) is an air pollutant that warms the climate for days to decades, chiefly methane, black carbon, tropospheric ozone, and HFCs.

Short-range correlated nucleon pairs

Short-range correlated nucleon pairs are transient pairs with large relative momentum from the strong force's short-range repulsion, making up roughly 20% of nucleons in any nucleus.

Short-segment fixation

Short-segment fixation is a posterior spinal technique placing pedicle screws only one level above and below a fractured vertebra, shortening operations and reducing blood loss.

Short-tail stingray

Short-tail stingray (Bathytoshia brevicaudata, smooth stingray), a large Dasyatidae ray of southern Africa, Australia, New Zealand, and Japan; up to 430 cm TL, IUCN Least Concern, ovoviviparous, venomous barbed tail.

Short-term insomnia

Short-term (acute) insomnia, ICD-11 7A01, is sleep-initiation or maintenance difficulty under 3 months despite adequate sleep opportunity, with daytime impairment; usually stress-precipitated, treated first with CBT-I.

Short-term load forecasting

Short-term load forecasting (STLF) predicts electrical power demand over horizons from an hour to a week or more, feeding unit commitment, dispatch, and market bidding.

Short-term memory

Short-term memory (STM), also known as immediate memory, is the temporary conscious storage of information for a few seconds after it is no longer perceptually present.

Short-time Fourier transform

The short-time Fourier transform, also called the windowed Fourier transform, computes Fourier transforms of successive windowed signal segments to show frequency content changing over time.

Short-track speed skating

Short-track speed skating: pack-style ice racing by four to six skaters on a 111.12 m oval, ISU-governed, Olympic medal sport since 1992; South Korea leads the medal table, Arianna Fontana has 14 medals.

Short-wave infrared imaging

Short-wave infrared (SWIR) imaging captures scenes using reflected light in the 1–3 µm band, revealing detail visible and thermal cameras miss, and seeing through fog, smoke, and silicon.

Short/branched-chain acyl-CoA dehydrogenase deficiency

Short/branched-chain acyl-CoA dehydrogenase deficiency, also called 2-methylbutyryl-CoA dehydrogenase deficiency or 2-methylbutyrylglycinuria, is a rare autosomal recessive ACADSB disorder of isoleucine breakdown, usually asymptomatic and detected by newborn screening.

Shortbread

Shortbread is a traditional Scottish biscuit of butter, sugar, and wheat or oat flour with a crumbly "short" texture; no eggs or leavening, classic 1:2:3 sugar-butter-flour ratio, about 500 kcal per 100 g.