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All articles starting with G

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Gate error models and infidelity

A gate error model is a mathematical description, usually a quantum channel, of how a quantum gate deviates from its intended operation, and gate infidelity summarizes that deviation.

Gate LNG Terminal

Gate LNG Terminal is an LNG import and regasification terminal on the Maasvlakte in the Port of Rotterdam, opened in 2011 as the Netherlands' first LNG import terminal.

Gate model (quantum computing)

The gate model is a model of quantum computation in which an algorithm is a sequence of quantum logic gates acting on qubits, ending in a measurement.

Gate of Flesh (肉体の門)

Gate of Flesh (肉体の門, Nikutai no mon) is Seijun Suzuki's 1964 Nikkatsu color drama adapted from Taijiro Tamura's 1947 bestseller, starring Joe Shishido and Yumiko Nogawa as postwar Tokyo prostitutes bound by a no-free-sex code.

Gate of Heaven Cemetery (Hawthorne, New York)

Gate of Heaven Cemetery, Hawthorne, New York: Roman Catholic cemetery established 1917, owned by the Archdiocese of New York, largest sectarian burial ground in Westchester County, resting place of Babe Ruth, James Cagney, and the Maras.

Gate of Hell (地獄門)

Gate of Hell (地獄門, Jigokumon) is a 1953 Daiei color period drama by Teinosuke Kinugasa, adapted from Kan Kikuchi, starring Kazuo Hasegawa and Machiko Kyo; it won the 1954 Cannes Grand Prix and two Academy Awards.

Gate of the Sun

Gate of the Sun (Bab al-Shams) is a 1998 novel by Elias Khoury about a doctor who keeps a comatose Palestinian fighter alive by telling his stories.

Gate opening in flexible metal-organic frameworks

Gate opening is an adsorption-induced structural transition in flexible metal-organic frameworks in which closed pores expand at a threshold pressure, giving stepwise isotherms and enabling selective gas separation.

Gate opening in ZIF-8

Gate opening in ZIF-8, or the swing effect, is a framework-flexibility mechanism in which the 2-methylimidazolate linkers of ZIF-8 swing to widen its 3.4 Å pore windows, admitting molecules like methane.

Gate set tomography

Gate set tomography (GST) is a protocol for characterizing quantum computer gates, estimating state preparations, measurements, and gates together without assuming they are perfectly calibrated.

Gate Theatre, Dublin

The Gate Theatre is a producing theater in Dublin, founded in 1928 by Hilton Edwards and Micheál MacLiammóir, housed since 1930 in an 18th-century Rotunda room on Parnell Square.

Gate turn-off thyristor

A gate turn-off thyristor (GTO) is a power semiconductor switch, invented by General Electric in 1958, that can be turned off by a negative pulse at its gate.

Gate valve

A gate valve, also called a sluice valve, is a valve that starts or stops flow by sliding a flat gate across the passage, used fully open or fully closed.

Gate-all-around transistor

The gate-all-around (GAA) transistor is a field-effect transistor whose gate contacts the channel on all four sides, replacing the FinFET; Samsung first mass-produced it at 3 nm in 2022.

Gate-induced superconductivity

Gate-induced superconductivity is the induction and continuous tuning of superconductivity by an electric field from a gate electrode, using electric-double-layer and ionic transistors to reach carrier densities beyond chemical doping.

Gate-tunable superconductivity in monolayer MoS2

Gate-tunable superconductivity in monolayer MoS2 is the superconducting state induced in atomically thin molybdenum disulfide by ionic-liquid gating, first demonstrated at the University of Geneva in 2016.

Gate-tunable superconductivity in MoS2

Gate-tunable superconductivity in MoS2 is the induction and continuous control of superconductivity in molybdenum disulfide by electric fields rather than chemical doping, with critical temperatures up to about 11 K.

Gated Blood-Pool Imaging

Gated blood-pool imaging, also called MUGA, ERNA, or gated radionuclide ventriculography, is an ECG-gated nuclear medicine scan using Tc-99m-labeled red blood cells to measure left ventricular ejection fraction reproducibly, mainly for chemotherapy cardiotoxicity monitoring.

Gated community

Gated community: a housing development restricting public access via gates, walls, fences, and security. Also called enclosed or walled residential enclaves; US units grew from 701,000 (1970) to 24 million (2009); crime effects mixed, segregation debated.

Gated Linear Attention

Gated Linear Attention (GLA) is a sequence-modeling layer extending linear attention with data-dependent gating, introduced by Songlin Yang and Yoon Kim's group in December 2023.

Gated recurrent unit

The gated recurrent unit (GRU) is a recurrent neural network cell introduced in 2014 by Kyunghyun Cho and colleagues as a streamlined alternative to the LSTM.

Gated single-photon emission computed tomography

Gated single-photon emission computed tomography (gated SPECT, GSPECT) is a nuclear medicine method, developed in the late 1980s, that synchronizes heart perfusion imaging with the cardiac cycle to measure left ventricular function.

Gatehouse (waterworks)

A gatehouse, also called a gate house or valve house, is a structure at a dam or reservoir housing the gates, valves, or pumps that regulate stored water.

Gatehouse-of-Fleet

Gatehouse-of-Fleet: small Roman fortlet near Gatehouse of Fleet, Dumfries and Galloway, Scotland (NX55NE 10, SM2479). Flavian, c. AD 81–86, one-century garrison, two ditches, turf-and-clay rampart, on the Glenlochar Roman road; excavated by St Joseph in 1960.

Gatekeeping

Gatekeeping: a health-system arrangement in which a primary care physician or GP controls access to specialist care by referral. Also GP gatekeeping. Used in 31 of 38 OECD countries; reduces specialist use and costs but lowers patient satisfaction.

Gatekeeping (communication)

Gatekeeping in communication is the theory of how information is selected and filtered as it passes through gates controlled by gatekeepers such as editors, platforms, and algorithms. It originated with Kurt Lewin in 1947, was applied to news selection by David Manning White's 1950 Mr. Gates study, and now covers algorithmic and platform gatekeeping.

Gaten Matarazzo

Gaten Matarazzo (born 2002) is an American actor and singer known for playing Dustin Henderson on Stranger Things, after a Broadway career begun at age eight.

Gates McFadden

Gates McFadden (Cheryl Gates McFadden, born 1949) is an American actress and choreographer, best known as Dr. Beverly Crusher on Star Trek: The Next Generation (154 episodes), four films, and Picard, plus choreography on Labyrinth.

Gates of Alexander

Gates of Alexander: legendary barrier attributed to Alexander the Great in the Caucasus against Gog and Magog, known from the Alexander Romance and identified with the Derbent or Darial passes, though the real walls were Sasanian.

Gates of hell

Gates of hell, or gates of Hades (pylai hadou): a biblical phrase from Matthew 16:18 and, more broadly, entrances to the underworld in Greek, Jewish, Hindu, and Roman tradition, including the deadly CO2-emitting Ploutonion at Hierapolis and Rodin's 1880 sculpture.