All articles starting with S
44,216 articles
Section 377
Section 377 of the Indian Penal Code (1860), drafted under Thomas Macaulay, criminalized "carnal intercourse against the order of nature" and spread across British colonies; India's Supreme Court read it down in Navtej Singh Johar (2018), and the Bharatiya Nyaya Sanhita deleted it from 2024.
Section 4(f) of the Department of Transportation Act
Section 4(f) of the Department of Transportation Act is a 1966 US law barring DOT agencies from approving projects that use parks, refuges, or historic sites when prudent alternatives exist.
Section 420 of the Indian Penal Code
Section 420 of the Indian Penal Code, 1860 punished cheating and dishonestly inducing delivery of property, up to seven years plus fine; replaced by BNS Section 318(4) from 1 July 2024.
Section 45Q
Section 45Q is a provision of the U.S. Internal Revenue Code providing a production tax credit for carbon oxides captured at industrial facilities, power plants, or from the air.
Section 45X tax credit
The Section 45X tax credit, formally the Advanced Manufacturing Production Credit, is a US federal tax credit for clean energy components and critical minerals produced in America.
Section 8 (housing)
Section 8 is the US federal rental assistance program under Section 8 of the 1937 Housing Act, best known as the Housing Choice Voucher program, created in 1974 and serving over 2.3 million low-income households through local public housing agencies.
Section 8 (military)
Section 8 was a US Army administrative discharge from Section VIII of AR 615-360, used in World War II and Korea to remove soldiers deemed mentally unfit, unadaptable, or inapt, and later a slang term for insanity.
Section control
Section control, also called point-to-point or average speed enforcement, measures a vehicle's average speed between two cameras several kilometers apart and prosecutes drivers exceeding the limit.
Section modulus
The section modulus is a geometric property of a beam's cross-section, defined as moment of inertia divided by distance to the outermost fiber, that measures bending strength.
Section sign
The section sign (§), also called silcrow or double-s, is the U+00A7 typographic mark for citing numbered sections of documents, especially legal codes; §§ marks multiple sections, and it is distinct from the pilcrow ¶ paragraph mark.
Section.80
Section.80 is Kendrick Lamar's debut studio album, released July 2, 2011 on Top Dawg Entertainment. Its title joins Section 8 housing and the 1980s; it topped iTunes over Adele and Gaga and scored 80 on Metacritic.
Sectional curvature
Sectional curvature is a number assigned to each tangent 2-plane of a Riemannian manifold, measuring Gaussian curvature; the curvatures of all planes determine the Riemann tensor.
Sectional density (ballistics)
Sectional density is a ballistics figure of merit for a projectile: bullet weight divided by diameter squared, used in ballistic coefficients and as a rough gauge of penetration.
Sectional overhead door
A sectional overhead door is a door made of hinged horizontal panels that rises in side tracks and runs back along ceiling tracks, standard on garages and warehouses.
Sectionalizer
A sectionalizer is an automatic switching device on medium-voltage distribution feeders that isolates faulted line sections by counting the interruption operations of an upstream recloser or breaker.
Sectionectomy
Sectionectomy is an anatomic liver resection that removes one of the liver's four Couinaud sections, each with its own blood supply and bile drainage, preserving maximal functional liver tissue.
Sector 36
Sector 36 is a 2024 Hindi Netflix crime thriller, Aditya Nimbalkar's debut, loosely based on the Nithari killings, starring Vikrant Massey as killer Prem Singh and Deepak Dobriyal as Inspector Ram Charan Pandey.
Sector coupling
Sector coupling, also called sector integration, is the interlinking of the electricity, heat, transport, and industry sectors so renewable electricity can replace fossil fuels and add flexibility.
Sector field mass spectrometry
Sector field mass spectrometry separates ions by mass-to-charge ratio using electric and magnetic sector fields; double focusing yields high resolution for elemental and isotopic analysis, including ICP-SFMS trace work.
Sectra
Sectra is a Swedish medical imaging IT and cybersecurity company founded in 1978 at Linköping University, developing PACS for hospitals and encryption for defense customers.
Sects of Sikhism
Sects of Sikhism, or Sikh sects, are the distinct religious orders and movements within the Sikh Panth, from ascetic orders to groups with living gurus.
SECU Stadium
SECU Stadium, formerly Byrd Stadium and Maryland Stadium, is the 46,185-seat home of Maryland Terrapins football in College Park, opened in 1950, renamed in 2015 and 2022.
Secukinumab
Secukinumab (Cosentyx, AIN457) is a fully human IgG1 monoclonal antibody inhibiting interleukin-17A, first approved 2014-2015 for plaque psoriasis, psoriatic arthritis, ankylosing spondylitis, and hidradenitis suppurativa.
Secular Buddhism
Secular Buddhism, also called naturalistic or pragmatic Buddhism, is a modern current interpreting Buddhism without rebirth, karma across lifetimes, or supernatural elements, associated with Stephen Batchelor and rooted in Buddhist modernism.
Secular equilibrium
Secular equilibrium, also called radioactive equilibrium, is a state in a radioactive decay chain where a long-lived parent's short-lived daughter builds up until its activity equals the parent's.
Secular humanism
Secular humanism is a philosophy grounded in human reason and naturalism, broader than atheism. Paul Kurtz founded the movement, which produced manifestos in 1933, 1973, and 2003.
Secular music
Secular music is non-religious music, defined as music not explicitly dealing with God or Christian belief. Also called worldly music, it spans medieval troubadour song to modern pop, and recent scholarship questions the sacred-secular binary.
Secular perturbation theory
Secular perturbation theory is the branch of celestial mechanics describing slow, long-term changes in planetary orbits by averaging away fast motion; its classical form is Laplace–Lagrange theory.
Secular resonance
A secular resonance is an orbital resonance caused not by matching orbital periods but by matching precession rates, which can drive large changes in a small body's eccentricity or inclination.
Secular state
Secular state: a state whose government is neutral in religion, with no official faith. Forms include French laïcité (1905 law), US First Amendment separation, and India's minimal secularism.