All articles starting with R
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Regular Show: The Movie
Regular Show: The Movie (2015) is a Cartoon Network animated sci-fi comedy directed by J.G. Quintel, in which Mordecai and Rigby time-travel to stop an evil volleyball coach; released on DVD October 13, 2015, canon after season six.
Regular solution theory
Regular solution theory is a thermodynamic model of mixtures in which molecules mix randomly but the enthalpy of mixing is nonzero, introduced by Joel H. Hildebrand in 1927.
Regular space
In topology, a regular space is one where each point and closed set not containing it lie in disjoint open sets, a separation axiom between Hausdorff and normality.
Regular tetrahedron
A regular tetrahedron is the simplest of the five Platonic solids, with four equilateral triangular faces, four vertices, and six edges, described by the Schläfli symbol {3,3}.
Regular variation
Regular variation is a property of measurable functions describing power-law asymptotic behavior, introduced by Jovan Karamata in 1930 and standard in probability and extreme value theory.
Regularization (mathematics)
Regularization in mathematics is the construction of stable approximate solutions to ill-posed problems by adding constraints, introduced by Tikhonov in 1963 and central to ridge regression and the lasso.
Regularized regression
Regularized regression adds a penalty term to least-squares fitting, shrinking coefficients toward zero to lower prediction error; ridge and the lasso are the canonical cases.
Regularized zero-forcing
Regularized zero-forcing, also called MMSE precoding, is a linear precoding technique for multiuser MIMO wireless systems that adds a regularization parameter to trade interference cancellation against noise enhancement.
Regulate (song)
"Regulate" is a 1994 hip-hop single by Warren G featuring Nate Dogg, sampling Michael McDonald's "I Keep Forgettin'"; it peaked at No. 2 on the Billboard Hot 100 and defined g-funk.
Regulated Necrosis
Regulated necrosis, or programmed necrosis, is a form of genetically controlled cell death that ends in membrane rupture and cell lysis, releasing contents that trigger intense inflammation; its forms include necroptosis, pyroptosis, and ferroptosis.
Regulated river
A regulated river is one whose flow is largely controlled by major man-made structures such as dams and weirs, so water can be released from upstream storage on demand.
Regulated verse
Regulated verse (近體詩, recent-style poetry) is the body of Classical Chinese poetic forms fixed during the Tang dynasty, including the jueju quatrain and the eight-line lüshi, written under strict tonal, rhyme, and parallelism rules.
Regulating Act 1773
The Regulating Act 1773, also called the Regulating Act of 1773, was a British parliamentary act passed in 1773 to regulate the East India Company.
Regulation
Regulation is government's use of legal instruments to impose obligations on private actors, spanning economic, social, and administrative types, tested through cost-benefit analysis and OECD checklist principles.
Regulation (EC) No 223/2009 on European statistics
Regulation (EC) No 223/2009 is the EU regulation establishing the legal framework for developing, producing, and disseminating European statistics, in force since 2009 and amended in 2024.
Regulation (EU) 2021/664
Regulation (EU) 2021/664 is the EU regulation adopted in April 2021 that establishes the U-space, designated airspace zones where drones may operate only with digital services.
Regulation (EU) 2023/1230
Regulation (EU) 2023/1230 is a European Union regulation on machinery, adopted in June 2023, which repeals the Machinery Directive and applies from 20 January 2027.
Regulation and licensure in engineering
Regulation and licensure in engineering is the system by which governments decide who may practice engineering, led by the Professional Engineer license, first granted under a 1907 Wyoming law.
Regulation and tissue distribution of the pentose phosphate pathway
The pentose phosphate pathway, also called the phosphogluconate pathway, is regulated mainly by the NADP+/NADPH ratio at G6PD and runs high in liver, adipose, and erythrocytes.
Regulation D (SEC)
Regulation D is a set of SEC rules, adopted in March 1982, that exempts limited securities offerings, called private placements, from registration, centered on the accredited investor definition and Rules 504 and 506.
Regulation FD
Regulation FD, or Regulation Fair Disclosure, is a U.S. SEC rule adopted in 2000 requiring companies to publicly disclose material nonpublic information shared with analysts or favored investors.
Regulation of adult magazine distribution
The regulation of adult magazine distribution covers customs bans on obscene imports, display and shrink-wrapping rules, and voluntary retailer withdrawal, in the United States, Japan, and Singapore.
Regulation of algorithms
Regulation of algorithms is the set of laws, standards, and enforcement mechanisms authorities apply to algorithmic and AI systems, exemplified by the EU AI Act, effective from 2024.
Regulation of alternative splicing
Regulation of alternative splicing is the set of mechanisms cells use to choose which exons join, so one gene yields different protein isoforms in different tissues.
Regulation of antimicrobial use in animals
The regulation of antimicrobial use in animals covers laws and surveillance governing how antibiotics are sold and given to animals, aiming to slow antimicrobial resistance.
Regulation of Apoptosis
Regulation of apoptosis: control of caspase-mediated programmed cell death via intrinsic (mitochondrial, BCL-2 family, cytochrome c) and extrinsic (death receptor) pathways, IAPs, ubiquitination, and crosstalk with necroptosis and pyroptosis; dysregulation drives cancer, autoimmunity, and neurodegeneration.
Regulation of artificial intelligence
Regulation of artificial intelligence, or AI regulation, is the body of laws governments apply to AI systems, led by the EU's risk-based AI Act, in force since 2024.
Regulation of artificial intelligence in the United States
Regulation of artificial intelligence in the United States, also called AI legislation in the United States, has no comprehensive federal statute and rests mainly on state laws.
Regulation of biotechnology
Regulation of biotechnology is the oversight of genetically modified organisms, dividing countries between process-based rules triggered by production technique and product-based rules triggered by a product's novel traits.
Regulation of complement convertases
Regulation of complement convertases covers the mechanisms controlling the unstable C3 convertases C4b2a and C3bBb, including decay acceleration, factor I cofactor activity, and properdin stabilization.