All articles starting with S

Scattering equations

The scattering equations are algebraic conditions on n points of a Riemann sphere encoding the kinematics of scattering among n massless particles, central to the CHY formalism.

Scattering length

The scattering length is a single parameter, with the dimension of a length, characterizing low-energy scattering by a short-range potential, with cross-section 4πa² at zero energy.

Scattering parameters

Scattering parameters, or S-parameters, describe the reflection and transmission of signals at each port of a linear network and are the standard language of RF and microwave engineering.

Scattering phase function

A scattering phase function describes the angular distribution of radiation scattered by a medium: the probability a photon is redirected as a function of the scattering angle.

Sep 29, 2026

The scattering transform, or wavelet scattering, is a fixed signal-processing method that cascades wavelet convolutions with modulus nonlinearities, with no learned parameters, used for texture, image, and audio classification.

Scattering-type scanning near-field optical microscopy

Scattering-type scanning near-field optical microscopy (s-SNOM, also called s-NSOM) is a scanning probe technique measuring surface optical properties at 10–20 nm resolution, surpassing the diffraction limit from visible to terahertz light.

Scatterometer

A scatterometer is a radar instrument that measures ocean surface wind speed and direction from the backscatter of microwave pulses, first demonstrated on Skylab in 1973.

Sep 29, 2026

Scatterometry

Scatterometry, also known as optical critical dimension (OCD) metrology, is a non-imaging optical technique that fits diffraction signatures from periodic nanostructure targets to models, measuring linewidth, height, and sidewall angle with nanometer precision in semiconductor fabrication.

Oct 20, 2026

Scauriniacum

Scauriniacum: Gallo-Roman villa in Gaul, attested in the 572 testament of Saint Yrieix; identified (Barrington Atlas 14 G3) with Chabrignac, Corrèze, France; name from Scaurinus + -iacum.

Scavenger

Scavenger: an animal feeding on carrion it did not kill; only ~1% of vertebrate scavengers (vultures) are obligate, the rest facultative. Covers adaptations, carrion-finding, disease ecology, the diclofenac vulture crisis, and ecosystem-service values.

Scavenger hunt

A scavenger hunt is a game in which players or teams race to find or complete items on a checklist, popularized in the 1930s by Elsa Maxwell.

Scavengers Reign

Scavengers Reign is a 2023 Max adult animated sci-fi series by Joseph Bennett and Charles Huettner, expanding their 2016 short Scavengers; freighter Demeter survivors stranded on planet Vesta, acclaimed (Metacritic 84), Emmy-winning, cancelled after one season.

Scavenging (engine)

Scavenging is the gas-exchange process in a two-stroke engine, where fresh air expels burned gases and refills the cylinder between strokes. Its main layouts are cross, loop, and uniflow scavenging.

Scayl

Scayl is a Stockholm-based fintech startup, founded in 2023, that provides debt financing infrastructure to European fintech lenders, emerging from stealth in April 2024 with €100 million.

Oct 10, 2026

SCB X Public Company

SCB X Public Company Limited (SCBX) is a Thai non-operating financial holding company created in 2021 when Siam Commercial Bank restructured, trading on the Stock Exchange of Thailand as "SCB".

SCC-15

SCC-15 (SCC15, CVCL_1681, ATCC CRL-1623) is a human tongue squamous cell carcinoma cell line from a 55-year-old man, STR-authenticated, microsatellite stable, with elevated wild-type K-ras and faster growth than SCC-25.

SCC-25

SCC-25, also known as SCC25, is a human cancer cell line derived from a 70-year-old man's tongue squamous cell carcinoma, used widely in oral cancer research.

SCC-4

SCC-4 (SCC4, CVCL_1684, ATCC CRL-1624) is a human tongue squamous cell carcinoma cell line from a 55-year-old male, established by Rheinwald and Beckett, TP53-mutant, used widely in oral cancer, drug response, and radioresistance research.

Oct 20, 2026

SCC-9

SCC-9 (SCC9, CVCL_1685, ATCC CRL-1629) is a human tongue squamous cell carcinoma cell line from a 25-year-old man, established 1981, cisplatin-resistant, TP53-mutant, and widely used in oral cancer research.

SCCA RallyCross

SCCA RallyCross (RallyCross) is the Sports Car Club of America's timed, one-car-at-a-time dirt autocross on coned unpaved courses, distinct from European wheel-to-wheel rallycross, with Stock, Prepared, and Modified classes.

SCCSS study

SCCSS (Swiss Childhood Cancer Survivor Study), launched 2007, NCT03297034: Swiss national cohort of 5-year childhood cancer survivors registered since 1976, with 4,135 baseline respondents, sibling controls, and studies of late effects.

Sceaux-sur-Huisne

Sceaux-sur-Huisne, a Sarthe commune (INSEE 72331) in Pays de la Loire on the Huisne river, 587 inhabitants in 2023; Gallo-Roman villa remains, medieval manoir de la Cour, listed church, and the Bahier charcuterie plant as main employer.

Scedosporiosis

Scedosporiosis, a rare mold mycosis caused by Scedosporium apiospermum complex species (and related Lomentospora prolificans infection, lomentosporiosis), causing pneumonia, mycetoma, skin, bone, CNS, and disseminated disease, treated with voriconazole and surgery.

Scedosporium

Scedosporium, also historically Pseudallescheria, is a genus of saprophytic ascomycete molds causing mycetoma, cystic fibrosis airway colonization, and invasive scedosporiosis with high mortality and antifungal resistance; Lomentospora prolificans is now separate.