All articles starting with S

Strom Thurmond filibuster of the Civil Rights Act of 1957

Strom Thurmond's 1957 filibuster: a 24-hour, 18-minute one-man Senate speech, August 28-29, 1957, against the Civil Rights Act of 1957, the longest individual Senate speech until Cory Booker's 25 hours 5 minutes in 2025.

Stromae

Stromae (Paul Van Haver, born 1985, Brussels) is a Belgian singer, rapper and producer whose albums Cheese, Racine Carrée and Multitude made "Alors on danse" a No. 1 hit in 19 countries; he also runs the Mosaert creative house.

Stromal cell

Stromal cell (CL:0000499): a mesenchymal-lineage connective tissue cell of the loose connective tissue forming an organ's supportive stroma; includes fibroblasts, pericytes, and mesenchymal stromal cells used in immunomodulatory therapy.

Oct 20, 2026

Stromal cell of endometrium

Stromal cells of endometrium, also called endometrial stromal fibroblasts, are the connective tissue cells of the uterine lining that drive its monthly remodeling and, during pregnancy, differentiate into decidual cells essential for embryo implantation.

Stromal cell of thymus

Thymic stromal cells are the non-lymphocyte support cells of the thymus, including thymic epithelial cells, fibroblasts, endothelial cells, and pericytes, which build the microenvironment for T cell development, selection, tolerance, and age-related involution.

Stromatolite

Stromatolites: layered organosedimentary structures built by microbial mats trapping sediment and precipitating minerals; Earth's dominant early-life fossil record, from disputed 3.7 Ga Isua examples to living Shark Bay and Bahamas reefs, and a key Mars analog.

Stromatopora

Stromatopora is an extinct genus of hypercalcified stromatoporoid sponge that built laminated calcareous skeletons on shallow Palaeozoic sea floors from the Silurian to the Late Devonian.

Stromatoporella

Stromatoporella is an extinct Devonian stromatoporoid sponge genus (order Stromatoporellida), type species Stromatopora granulata Nicholson, 1873, defined by ring pillars and ordinocellular laminae, widespread in Siluro-Devonian reefs and taxonomically contested.

Stromatoporoidea

Stromatoporoidea, or stromatoporoids, an extinct class of non-spiculate calcified sponges from Ordovician to Devonian seas, reef-building with latilaminae, pillars, and astrorhizae; seven orders, 109 valid genera.

Stromboli

Stromboli, northernmost of the Aeolian Islands in the Tyrrhenian Sea, is a persistently active stratovolcano whose regular mild explosions define the Strombolian eruption type; paroxysms in 1919, 1930, 2003, and 2019 mark its hazards.

Stromboli (food)

Stromboli is an Italian-American baked turnover of pizza or bread dough filled with cheese, cured meats, and vegetables, credited to a Philadelphia pizzeria in the 1950s and named after the 1950 film Stromboli.

Stromelysin (MMP-3 and MMP-10)

Stromelysin is the name for two matrix metalloproteinase enzymes, stromelysin-1 (MMP-3) and stromelysin-2 (MMP-10), which degrade fibronectin, laminin, gelatins, and proteoglycans, and activate the pro-enzyme forms of other MMPs.

Stromme syndrome

Stromme syndrome (Strømme syndrome, OMIM 243605, CILD31) is a rare autosomal recessive ciliopathy caused by biallelic CENPF variants, combining microcephaly, apple-peel intestinal atresia, and ocular anomalies, first described in 1993.

Oct 20, 2026

Strømmen

Strømmen (Strømmen Idrettsforening, Strømmen IF) is a Norwegian sports club founded 25 September 1911 in Strømmen, Akershus, known for football; its men's team plays in the OBOS-ligaen, with top-flight seasons 1949-1961 and 1986-1988.

StromVKG (Kraftwerksleistungsgesetz)

StromVKG, formally the Kraftwerksleistungsgesetz, is a German federal law enacted in July 2026 that introduces Germany's first capacity market, auctioning 12 GW of secured capacity from power plants, storage, and controllable loads for 2031.

Strong and weak typing

Strong and weak typing are informal labels with no universally agreed definitions, describing how strictly a programming language's type system restricts operations, and many educators prefer precise terms like type safety.

Strong Armenia

Strong Armenia (Ուժեղ Հայաստան) is a pro-Russian Armenian opposition party founded in December 2025 by Samvel Karapetyan's Our Way movement; its alliance won 23.27% and 29 seats in the June 2026 parliamentary election.

Strong column-weak beam

Strong column-weak beam is a seismic design principle requiring columns to be stronger than the beams at a joint, so beams yield first in earthquakes.

Strong coupling regime

The strong coupling regime is a condition of cavity quantum electrodynamics in which the coherent coupling between a quantum emitter and a cavity mode exceeds both loss rates, enabling reversible energy exchange.

Strong CP problem

The strong CP problem is the unexplained smallness of CP violation in quantum chromodynamics, where experiments constrain the parameter to at least ten orders of magnitude below its natural size.

Strong equivalence principle

The strong equivalence principle (SEP) extends the Einstein equivalence principle to bodies with significant gravitational self-energy, such as planets, stars, and neutron stars, and underpins general relativity.

Strong exponential time hypothesis

The strong exponential time hypothesis (SETH) is a conjecture in computational complexity that satisfiability of Boolean CNF formulas cannot be solved substantially faster than exhaustive search.

Strong focusing

Strong focusing, also called alternating-gradient focusing, is a charged-particle beam optics principle, published at Brookhaven in 1952, in which alternating focusing and defocusing magnets produce net focusing in both planes.

Strong Georgia (ძლიერი საქართველო)

Strong Georgia (Georgian: ძლიერი საქართველო) is a pro-European opposition coalition led by Mamuka Khazaradze and Badri Japaridze. It won 14 mandates in the October 2024 elections.

Strong Girl Bong-soon (힘쎈여자 도봉순)

Strong Girl Bong-soon (힘쎈여자 도봉순, Strong Woman Do Bong-soon) is a 2017 JTBC Korean romantic comedy, 16 episodes, starring Park Bo-young, Park Hyung-sik, and Ji Soo, about a woman with hereditary superhuman strength hired as a bodyguard by a gaming CEO; it ranks among cable history's highest-rated K-dramas.