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Delta (/ˈdɛltə/; uppercase Δ, lowercase δ; Greek: δέλτα, délta, [ˈðelta]) is the fourth letter of the Greek alphabet. In the system of Greek numerals it...

The δ-opioid receptor, also known as delta opioid receptor or simply delta receptor, abbreviated DOR or DOP, is an inhibitory 7-transmembrane G-protein...

real δ > 0 such that for all real x, 0 < |x − p| < δ implies |f(x) − L| < ε. Symbolically, ( ∀ ε > 0 ) ( ∃ δ > 0 ) ( ∀ x ∈ R ) ( 0 < | x − p | < δ ⟹ |...

DELTA, Delta, delta, deltas, Δ, or δ in Wiktionary, the free dictionary. Delta commonly refers to: Delta (letter) (Δ or δ), the fourth letter of the Greek...

δ-Aminolevulinic acid (also dALA, δ-ALA, 5ALA or 5-aminolevulinic acid), an endogenous non-proteinogenic amino acid, is the first compound in the porphyrin...

DNA polymerase delta (DNA Pol δ) is an enzyme complex found in eukaryotes that is involved in DNA replication and repair. The DNA polymerase delta complex...

planet the 13 known rings are designated 1986U2R/ζ, 6, 5, 4, α, β, η, γ, δ, λ, ε, ν and μ. Their radii range from about 38,000 km for the 1986U2R/ζ ring...

stars and δ Scuti variables lie in approximately the same location on the H–R diagram, but it is rare for a star to be both an Am star and a δ Scuti variable...

protons and neutrons. Four closely related Δ baryons exist: Δ++  (constituent quarks: uuu), Δ+  (uud), Δ0  (udd), and Δ−  (ddd), which respectively carry an...

Delta Andromedae, Latinized from δ Andromedae, is a triple star system in the northern constellation of Andromeda. The system is visible to the naked...

Due to its high processivity, Pol δ takes over the leading and lagging strand synthesis from Pol α.: 218–219  Pol δ is expressed by genes POLD1, creating...

Delta atracotoxin (δ-ACTX-Ar1, robustoxin, or robustotoxin) is a low-molecular-weight neurotoxic polypeptide found in the venom of the Sydney funnel-web...

Δ-7-Tetrahydrocannabinol (Delta-5-THC, Δ5-THC; alternatively numbered as Δ-5-Tetrahydrocannabinol, Δ7-THC) is a synthetic isomer of tetrahydrocannabinol...

Δ-8-tetrahydrocannabinol (delta-8-THC, Δ8-THC) is a psychoactive cannabinoid found in the Cannabis plant. It is an isomer of delta-9-tetrahydrocannabinol...

9α-Fluoroprednisolone; Fluoroprednisolone; Deltafludrocortisone; δ-Fludrocortisone; δ-Fluorocortisone; 1-Dehydro-9α-fluorohydrocortisone; 9α-Fluoro-11β...

designation in both constellations: Alpha Andromedae (α And) and Delta Pegasi (δ Peg). Since the IAU standardized constellation boundaries and widely published...

Delta Virginis (δ Virginis, abbreviated Del Vir, δ Vir), formally named Minelauva /ˌmɪnəˈlɔːvə/, is a star in the zodiac constellation of Virgo. With an...

Δ-10-Tetrahydrocannabinol (Delta-10-THC, Δ10-THC, alternatively numbered as Δ2-THC) is a positional isomer of tetrahydrocannabinol, discovered in the...

Δ-4-Tetrahydrocannabinol (Delta-4-THC, Δ4-THC, Δ6a(7)-THC) is a synthetic isomer of tetrahydrocannabinol, developed in the 1970s during research to develop...

Δ-3-Tetrahydrocannabinol (Delta-3-THC, Δ3-THC, Δ6a(10a)-THC, EA-1477) is a synthetic isomer of tetrahydrocannabinol, developed during the original research...