All articles starting with S
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Shield of the Americas Summit
Shield of the Americas Summit (Escudo de las Américas): security summit held March 7, 2026, at Trump National Doral, Florida, where Trump and right-leaning Latin American leaders launched the Americas Counter Cartel Coalition, distinct from the OAS Summit of the Americas process.
Shield tunnelling incidents and failures
Shield tunnelling incidents and failures are the collapses, blowouts, and face-loss events during shield-machine excavation, including cases such as Singapore's Nicoll Highway collapse of 2004.
Shield volcano
A shield volcano, or lava shield, is a broad, gently sloping volcano built of fluid basaltic lava flows, named for a warrior's shield lying flat.
Shield-maiden
Shield-maiden (Old Norse skjaldmær) is the legendary female warrior of Old Norse literature and Saxo's Gesta Danorum, figures like Lagertha and Hervor; distinct from valkyries, of disputed historicity, with the female Birka Bj.581 weapon burial as key archaeology.
Shielded cable
Shielded cable, also known as screened cable, is an electrical cable wrapped in a conductive foil or braid layer that blocks electromagnetic interference from reaching its conductors.
Shielded metal arc welding
Shielded metal arc welding, also called stick welding or manual metal arc (MMA) welding, is an arc welding process that joins metals using a flux-coated consumable electrode.
Shielded transfer cask
A shielded transfer cask is a heavily shielded container used to move highly radioactive materials, most often spent nuclear fuel, between locations while protecting personnel from radiation.
ShieldGemma
ShieldGemma is a family of open-weights safety content moderation classifiers from Google DeepMind, built on Gemma, first released in July 2024 to check text for four harm categories.
Shielding angle
The shielding angle, also called the protection angle, is the angle from vertical between an overhead ground wire and the phase conductor it protects on a transmission line.
Shielding effect
The shielding effect, also called electron shielding, is the reduction in nuclear charge felt by an electron in a multi-electron atom due to repulsion from other electrons.
Shields Warren
Shields Warren (1898–1980) was an American pathologist and Harvard professor who pioneered radiation pathology and served as the first director of the Atomic Energy Commission's Division of Biology and Medicine.
Shier Lou
Shier Lou (Twelve Towers) is a 1658 collection of twelve vernacular Chinese stories by Li Yu, each organized around a tower that gives it its title.
Shifan
Shifan (师范), known as Wuzhun Shifan, was a Chinese Chan Buddhist monk of the Linji school who served as abbot of Jingshan monastery from 1232 until his death in 1249.
Shift current
A shift current is a direct electric current generated inside a homogeneous crystal by light alone, arising when photoexcited electrons and holes shift position between quantum states.
Shift K3Y
Shift K3Y, the stage name of Lewis Shay Jankel, is a British DJ, record producer, and vocalist from London whose 2014 single "Touch" reached number 3 on the UK chart.
Shift key
The Shift key is a modifier key on typewriter and computer keyboards that capitalizes letters and produces upper symbols, named for the carriage it once physically shifted, introduced in 1878.
Shift register
A shift register is a sequential logic circuit built from chained flip-flops that shifts binary data one bit per clock edge, used for serial-to-parallel conversion, delay, and signal generation.
Shift Technology
Shift Technology is a French software company founded in Paris in 2014 that sells AI products to insurers for fraud detection and claims automation, reaching a $1 billion valuation in 2021.
Shift Up
Shift Up is a South Korean video game developer founded in 2013, known for the mobile game GODDESS OF VICTORY: NIKKE and the action game Stellar Blade.
Shift work
Shift work is any method of organizing working time in which workers succeed one another at the same work stations, covering evening, night, rotating, and split schedules.
Shift-left data processing
Shift-left data processing moves data quality checks, governance, and processing to the point of data creation instead of downstream fixes. Also called data shift left; built on data contracts and early classification; the 1-10-100 cost rule and producer ownership distinguish it from pipeline-then-fix approaches.
Shift-share analysis
Shift-share analysis is a regional economics technique that decomposes a region's employment change into national growth, industry-mix, and competitive components, generally attributed to Edgar S. Dunn's 1960 paper.
Shift–Or algorithm
The Shift–Or algorithm is a bit-parallel string matching method that finds all occurrences of a pattern in a text using only shifts and bitwise logical operations, scanning in O(n) time.
Shift2Rail
Shift2Rail (S2R) was a European public-private partnership for railway research and innovation under Horizon 2020, established in 2014 with up to €450 million and succeeded by Europe's Rail in 2021.
Shifta War
The Shifta War was a Somali secessionist conflict in northern Kenya from 1963 to 1967, fought by the region's ethnic Somali inhabitants against the new Kenyan state.
Shifted boundary method
The shifted boundary method (SBM) is an immersed finite element method that solves partial differential equations on a simpler surrogate domain, avoiding cut cells and boundary-fitted meshing.
Shifters (play)
Shifters is a two-hander play by Benedict Lombe about Dre and Des, Black British former lovers reunited at a funeral. Staged at the Bush Theatre in 2024, it transferred to the Duke of York's Theatre, won a 2025 Black British Theatre Award, and reached Off-Broadway in 2026.
Shifting cultivation
Shifting cultivation, also called swidden or slash-and-burn agriculture, is a tropical farming system with short cultivation periods followed by long fallows; FAO estimates once covered about 400 million ha and 500 million people.
Shifting Gears (TV series)
Shifting Gears is an ABC multicamera sitcom premiering January 8, 2025, starring Tim Allen as widowed mechanic Matt Parker and Kat Dennings as his estranged daughter Riley; renewed through season 3.
ShiftKey
ShiftKey is a Dallas-area healthcare staffing technology marketplace founded by Tom Ellis in 2016, connecting independent nurses and aides with facilities to fill per-diem shifts; it was valued above $2 billion in 2023.