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Overview

20/20

Subject: Music

This US group was formed in Los Angeles, California, in 1978 by Steve Allen (guitar, vocals) and Ron Flynt (bass, vocals), two expatriate musicians from Tulsa, Oklahoma. Drummer Mike Gallo ...

βAad

βAad  

symbol for a residue of the β‐amino acid l‐β‐aminoadipic acid, l‐3‐aminohexanedioic acid.
ecdysterone

ecdysterone  

ororor20‐hydroxyecdysone; (22R)‐2β,3β,14,20,22,25‐hexahydroxycholest‐7‐en‐6‐one; the ecdysteroid isolated both from insects and from crustaceans. In insects, ecdysterone is formed in peripheral ...
per cent

per cent  

Literally from the Latin ‘in every hundred’, so it is a fraction with the denominator of 100 replaced by this phrase, or by the symbol %. So 20 per cent=20%=20/100 which is 1/5 or 0.2.
crucible

crucible  

A dish or other vessel in which substances can be heated to a high temperature. See also Gooch crucible.
deuterated compound

deuterated compound  

A compound in which some or all of the hydrogen–1 atoms have been replaced by deuterium atoms.
electroforming

electroforming  

A method of forming intricate metal articles or parts by electrodeposition of the metal on a removable conductive mould.
Platonic hydrocarbons

Platonic hydrocarbons  

Hydrocarbons that have the same molecular geometry as the five Platonic solids, i.e. the tetrahedron, the cube, the octahedron, the dodecahedron and the icosahedron. These hydrocarbons have carbon ...
Tes

Tes  

orabbr. for N‐tris(hydroxymethyl)methyl‐2‐aminoethanesulfonic acid; 2‐ [2‐hydroxy‐1,1‐bis(hydroxymethyl)ethyl]amino ethanesulfonic acid; a Good buffer substance; pKa (20 °C) = 7.5.
glycylglycine

glycylglycine  

A dipeptide useful for the preparation of buffers in the pH range around its pKa (20 °C) of 8.40.
Hepps

Hepps  

ororabbr. for (and trivial name of) 4‐(2‐hydroxyethyl)‐1‐piperazinepropanesulfonic acid; a Good buffer substance, pKa (20°C)= 8.0.
glycinamide

glycinamide  

the trivial name for the amide of glycine, aminoacetamide; aminoethanamide; H2N–CH2–CO–NH2. It is predominantly cationic at neutrality and is useful as a buffer substance; pKa (20°C) = 8.20.
glyceraldehyde 3-phosphate

glyceraldehyde 3-phosphate  

A triose phosphate, CHOCH(OH)CH2OPO3H2, that is an intermediate in the Calvin cycle (see also photosynthesis) and glycolysis.
CD3

CD3  

A CD marker, expressed exclusively in T lymphocytes, that consists of the γ (25 kDa), δ (20 kDa), and ε (20 kDa) polypeptides of the T‐cell receptor complex. CD3 proteins ...
substitution matrix

substitution matrix  

orora symmetrical 20×20 matrix containing values proportional to the probability that amino acid i mutates to amino acid j for all pairs of amino acids; the diagonal denotes ...
accessory pigment

accessory pigment  

A photosynthetic pigment that traps light energy and channels it to chlorophyll a, the primary pigment, which initiates the reactions of photosynthesis. Accessory pigments include the carotenoids, ...
chromic compounds

chromic compounds  

Compounds containing chromium in a higher (+3 or +6) oxidation state; e.g. chromic oxide is chromium(VI) oxide (CrO3).
banana bond

banana bond  

Informal name for the type of electron-deficient three-centre bond holding the B-H-B bridges in boranes and similar compounds.
benzpyrene

benzpyrene  

A pale yellow solid, C20H12, m.p. 179°C, whose molecules consist of five fused benzene rings. It occurs in tars from coal and tobacco smoke and is a carcinogen.
bromomethane

bromomethane  

A colourless volatile nonflammable liquid, CH3Br; r.d. 1.68; m.p. –93°C; b.p. 3.56°C. It is a typical haloalkane.
carbonize

carbonize  

To change an organic compound into carbon by heating, or to coat something with carbon in this way.

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