All articles A–Z

Succession Treaty of Esarhaddon

The Succession Treaty of Esarhaddon, also called Esarhaddon's Succession Treaty, is a Neo-Assyrian oath imposed in 672 BC binding vassals and officials to support Ashurbanipal's succession.

Sep 24, 2026

Succession war between Mas'ud I and Muhammad

The succession war between Mas'ud I and Muhammad was the 1030 struggle for the Ghaznavid throne between Sultan Mahmud's sons, ending with Mas'ud's victory and Muhammad's imprisonment.

Sep 23, 2026

Succession war of 1627–28

The succession war of 1627–28 was the fight for the Mughal throne after Emperor Jahangir died in October 1627, pitting Shahryar, backed by Nur Jahan, against Khurram.

Sep 23, 2026

Succession war of Barkiyaruq and Muhammad Tapar

The succession war of Barkiyaruq and Muhammad Tapar was the civil war between the sons of Seljuk sultan Malik-Shah I, fought from 1092 to 1105.

Sep 24, 2026

Succession wars among the sons of Askia Dawud

The succession wars among the sons of Askia Dawud were struggles for the Songhai Empire's throne after his death in 1582, weakening it before Morocco's 1591 invasion.

Succession, continuity, and legacy of the Soviet Union

Succession, continuity, and legacy of the Soviet Union: how the USSR dissolved into 15 states in December 1991, how Russia assumed its nuclear and UN statuses, and how Soviet institutions shaped the post-Soviet states.

Successive interference cancellation

Successive interference cancellation (SIC) is a nonlinear multiuser receiver technique in wireless communication that decodes overlapping signals in sequence, subtracting each decoded signal before detecting the next.

Sep 29, 2026

Successive ionic layer adsorption and reaction

Successive ionic layer adsorption and reaction (SILAR), a modified chemical bath deposition, is a low-cost thin-film deposition method reported by Y.F. Nicolau in 1985 that grows films layer by layer without a vacuum system.

Sep 29, 2026

Successive over-relaxation

Successive over-relaxation (SOR) is an iterative method for solving linear systems, using a relaxation factor to speed up Gauss–Seidel, especially for sparse systems from discretized PDEs.

Successor (抓娃娃》) (2024 film)

Successor (抓娃娃, Zhua Wa Wa) is a 2024 Chinese comedy directed by Yan Fei and Peng Damo, starring Shen Teng and Ma Li as rich parents faking poverty to groom their son Ma Jiye as heir. It earned 3.33 billion RMB, topping the 2024 summer box office.

Successor Features

Successor features are a reinforcement learning representation introduced by André Barreto and DeepMind colleagues in 2016 that separates environment dynamics from rewards for transfer learning.

Succimer

Succimer, also known as meso-2,3-dimercaptosuccinic acid (DMSA), is an orally active chelating agent that binds lead into water-soluble complexes excreted in urine, FDA-approved in 1991 for childhood lead poisoning.

Succinate dehydrogenase

Succinate dehydrogenase (SDH, complex II, succinate-CoQ reductase) is the only mitochondrial enzyme shared by the TCA cycle and electron transport chain, oxidizing succinate to fumarate; SDHx mutations cause hereditary paraganglioma and other tumors.

Succinate semialdehyde dehydrogenase

Succinate semialdehyde dehydrogenase (SSADH, ALDH5A1) is a mitochondrial NAD+-dependent enzyme oxidizing succinic semialdehyde to succinate in the GABA shunt; its deficiency causes SSADHD, a rare epileptic encephalopathy with GHB accumulation.

Succinic acid

Succinic acid, also known as butanedioic acid, is a four-carbon dicarboxylic acid first isolated from amber in 1546, an intermediate of the citric acid cycle.

Succinic anhydride

Succinic anhydride is the cyclic anhydride of succinic acid, a white crystalline solid with formula C₄H₄O₃ used as a resin hardener and in pharmaceuticals, esters, and food processing.

Succinic semialdehyde dehydrogenase deficiency

Succinic semialdehyde dehydrogenase deficiency (SSADHD, 4-hydroxybutyric aciduria, gamma-hydroxybutyric aciduria), ALDH5A1 autosomal recessive GABA metabolism disorder causing intellectual disability, hypotonia, ataxia, epilepsy; prevalence about 1/500,000.

Succinobucol

Succinobucol (AGI-1067), a monosuccinate ester of probucol developed by AtheroGenics, is an antioxidant anti-inflammatory drug candidate for atherosclerosis that reached Phase 3 (ARISE) without approval.

Succinonitrile

Succinonitrile, also called butanedinitrile, is a highly toxic, colorless waxy dinitrile solid melting at 57 °C that forms a plastic crystal used as a solid solvent in battery electrolytes.

Succinyl-CoA

Succinyl-CoA is a coenzyme A thioester of succinic acid and an intermediate of the citric acid cycle, formed from α-ketoglutarate and converted to succinate with GTP production.

Succinyl-CoA synthetase

Succinyl-CoA synthetase, also called succinyl-CoA ligase or succinate thiokinase, is an enzyme that converts succinyl-CoA to succinate while generating GTP or ATP, the citric acid cycle's only substrate-level phosphorylation step.

Succinyl-CoA:3-oxoacid CoA transferase deficiency

SCOT deficiency (SCOTD, OXCT1 deficiency, OMIM 245050) is a rare autosomal recessive ketone-utilization disorder causing potentially fatal ketoacidotic attacks from infancy, treated with glucose, bicarbonate, and a high-carbohydrate diet.

Succinylornithine transaminase

Succinylornithine transaminase (AstC, EC 2.6.1.81, also argM/cstC/ydjW) is a PLP-dependent bacterial aminotransferase, third enzyme of the arginine succinyltransferase pathway, converting N-succinylornithine and alpha-ketoglutarate to succinylglutamic semialdehyde and glutamate.