All articles starting with S
44,216 articles
Self Care
Self care is how individuals, families, and communities maintain health, prevent disease, and cope with illness with or without a health worker; the WHO has issued guidelines since 2019.
Self Control (Frank Ocean song)
"Self Control" is a 2016 Frank Ocean song, track 7 on Blonde, written with Malay Ho and Jon Brion in A-flat major; UK peaks No. 35 (Hip Hop/R&B) and No. 18 (Independent), debuted live June 9, 2017.
Self Control (Raf song)
Self Control (Raf song): 1984 italo disco debut single by Italian singer Raf (Raffaele Riefoli), written with Giancarlo Bigazzi and Steve Piccolo; Italian No.1, later a bigger hit via Laura Branigan's cover.
Self Esteem (musician)
Self Esteem is the stage name of Rebecca Lucy Taylor (born 1986, Rotherham), an English pop musician, formerly of the indie duo Slow Club, known for Prioritise Pleasure (2021) and A Complicated Woman (2025) and West End acting.
Self Expandable Metallic Stents
Self-expandable metallic stents (SEMS) are nitinol or stainless steel mesh tubes that expand without balloon assistance to hold open malignant bile duct, esophageal, colorectal, airway, and vascular obstructions, with longer patency than plastic stents.
Self Financial (Self, formerly Self Lender)
Self Financial, formerly Self Lender, is an Austin, Texas consumer fintech founded by James Garvey in 2015 that helps people build credit and savings at the same time.
Self Made (miniseries)
Self Made: Inspired by the Life of Madam C.J. Walker is a four-part Netflix 2020 limited series starring Octavia Spencer as haircare pioneer Madam C.J. Walker, based on A'Lelia Bundles' biography On Her Own Ground, directed by Kasi Lemmons and DeMane Davis.
Self Medication
Self medication: use of medicines without physician prescription or direction, including OTC drugs, reused prescriptions, and herbs; MeSH D012651. Prevalence 13–92% by study; risks include misdiagnosis, interactions, polypharmacy.
Self Portrait (Bob Dylan album)
Self Portrait, Bob Dylan's June 1970 Columbia double album of mostly covers with Isle of Wight live tracks; UK number 1, panned by Greil Marcus, reappraised via the 2013 Bootleg Series Vol. 10.
Self Reliance (film)
Self Reliance is a 2024 American comedy-thriller, Jake Johnson's feature directorial debut, also starring Anna Kendrick and Andy Samberg. Tommy must survive 30 days of assassins in a dark web game, safe only when not alone; premiered SXSW 2023, released by Neon and Hulu January 2024.
Self Reliance (Самопоміч) (political party)
Samopomich (Самопоміч, "Self Reliance"), a pro-European Christian-democratic Ukrainian party founded in 2012, led by Oksana Siroyid since 2019; won 33 Rada seats in 2014, one in 2019.
Self-actualization
Self-actualization, also known as self-realization, is the full realization of one's potential, a concept coined by Kurt Goldstein and central to Maslow's hierarchy of needs.
Self-adjoint operator
A self-adjoint operator, also called a Hermitian operator, is a linear operator on a Hilbert space equal to its own adjoint, representing physical observables in quantum mechanics.
Self-administered questionnaire
A self-administered questionnaire is a survey completed by the respondent without an interviewer, traditionally on paper by mail and now widely used on the web.
Self-amplified spontaneous emission
Self-amplified spontaneous emission (SASE) is the operating principle of most short-wavelength free-electron lasers, exponentially amplifying spontaneous undulator radiation in a single pass through a long undulator.
Self-anchored suspension bridge
A self-anchored suspension bridge is a suspension bridge whose main cables anchor to the stiffening girder itself, eliminating massive ground anchorages and suiting spans of roughly 100–400 m.
Self-Ask
Self-Ask is a prompting method for large language models in which the model asks and answers its own follow-up sub-questions before giving the final answer.
Self-assembled monolayer
A self-assembled monolayer (SAM) is a single ordered layer of molecules that forms spontaneously on a surface, used to tailor wettability, adhesion, friction, and biosensing.
Self-assembled monolayer hole transport layers (MeO-2PACz)
MeO-2PACz is a self-assembled monolayer molecule used as a dopant-free hole transport layer in inverted perovskite solar cells, first reported in 2019 and now sold commercially.
Self-assembled monolayer hole-selective layer
A self-assembled monolayer hole-selective layer is a single-molecule-thick organic film, chemically anchored to a transparent electrode, that extracts holes in perovskite solar cells and has been standard since 2018.
Self-assembling peptide hydrogels
Self-assembling peptide hydrogels are soft biomaterials in which short peptides spontaneously organize, through non-covalent interactions, into nanofibers that entangle into a water-filled network resembling the extracellular matrix, used in drug delivery, tissue engineering, and wound healing.
Self-assembling peptide nanofiber
Self-assembling peptide nanofibers are nanoscale fibers that form spontaneously in water from peptide molecules, mimicking the extracellular matrix for tissue repair, drug delivery, and wound healing.
Self-assembling peptide nanoparticles
Self-assembling peptide nanoparticles are nanoscale particles that form spontaneously when short peptides associate through noncovalent interactions; they are studied as drug-delivery vehicles, vaccine platforms, and biomaterials.
Self-assembling peptide vaccine
A self-assembling peptide vaccine is a vaccine platform in which short synthetic peptides spontaneously organize into nanofibers, nanoparticles, or hydrogels that display antigens and act as their own adjuvant.
Self-assembling protein nanoparticle influenza vaccine
A self-assembling protein nanoparticle influenza vaccine is an experimental vaccine in which protein subunits spontaneously assemble into a nanoparticle displaying influenza hemagglutinin, aiming for broader immunity.
Self-assembly
Self-assembly is the spontaneous formation of organized structures from components through specific, reversible, noncovalent interactions, termed molecular self-assembly when components are molecules; its foundations were recognized by the 1987 Nobel Prize in Chemistry.
Self-assembly synthesis
Self-assembly synthesis is a fabrication approach in which molecules or nanostructures spontaneously organize, without external direction, into stable, well-defined aggregates joined by noncovalent bonds, formalized by Whitesides and colleagues in 1991.
Self-Assessment Manikin
The Self-Assessment Manikin (SAM) is a non-verbal pictorial questionnaire that measures pleasure, arousal, and dominance of emotional reactions, introduced by Bradley and Lang in 1994.
Self-attention model
Self-attention is a neural network mechanism that computes each sequence element's representation by comparing it with every other element, capturing long-range dependencies without recurrence as the core of the Transformer.
Self-attention network
A self-attention network is a neural network architecture that lets every position in a sequence attend directly to every other position, the core computation of Transformer models in machine translation.