member substitution
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Electrophilic aromatic substitution — or EAS is an organic reaction in which an atom, usually hydrogen, appended to an aromatic system is replaced by an electrophile. The most important reactions of this type that take place are aromatic nitration, aromatic halogenation, aromatic… … Wikipedia
Cytochrome P450, family 1, member A1 — Cytochrome P450, family 1, subfamily A, polypeptide 1 Identifiers Symbols CYP1A1; AHH; AHRR; CP11; CYP1; P1 450; P450 C; P450DX External IDs … Wikipedia
The Grand Substitution — is a 1965 Chinese movie of the Huangmei Opera genre. Synopsis A patriotic physician Cheng Ying was persuaded to serve the government by his sworn brother, Kung Sun. Emperor Ling was weak and could not control the corrupt minister Tu who seized an … Wikipedia
formal logic — the branch of logic concerned exclusively with the principles of deductive reasoning and with the form rather than the content of propositions. [1855 60] * * * Introduction the abstract study of propositions, statements, or assertively used … Universalium
Mohamed Ghonim — Ghonim, Mohammed A محمد غنيم Born 17th March, 1939 Mansoura, Egypt Nationality Egyptian Fields … Wikipedia
Sri Lanka — Sri Lankan, adj., n. /sree lahng keuh, lang keuh, shree / an island republic in the Indian Ocean, S of India: a member of the Commonwealth of Nations. 18,762,075; 25,332 sq. mi. (65,610 sq. km). Cap.: Colombo. Formerly, Ceylon. Arabic, Serendip.… … Universalium
heterocyclic compound — Any of a class of organic compounds whose molecules contain one or more rings of atoms with at least one atom (the heteroatom) being an element other than carbon, most frequently oxygen, nitrogen, or sulfur. As in regular cyclic hydrocarbons,… … Universalium
Indigenous and traditional sports of Singapore — Chinese Hopscotch= Traditional games are a significant part of our cultural heritage. They reflect the ingenuity and resourcefulness of our forefathers in creating their own games by using inexpensive materials for their pastimes and… … Wikipedia
cryptology — cryptologist, n. cryptologic /krip tl oj ik/, cryptological, adj. /krip tol euh jee/, n. 1. cryptography. 2. the science and study of cryptanalysis and cryptography. [1635 45; < NL cryptologia. See CRYPTO , LOGY] * * * Introduction … Universalium
Logicism — is one of the schools of thought in the philosophy of mathematics, putting forth the theory that mathematics is an extension of logic and therefore some or all mathematics is reducible to logic.[1] Bertrand Russell and Alfred North Whitehead… … Wikipedia
Jutsu (Naruto) — In the anime and manga series Naruto by Masashi Kishimoto, a jutsu (術?, lit. technique or skill ) refers to the abilities ninja can use. The series occurs in a fictional universe in which different countries fight for power using ninja soldiers.… … Wikipedia
