In computer programming, M-expressions (or meta-expressions) were an early proposed syntax for the Lisp programming language, inspired by contemporary...
9 KB (985 words) - 19:41, 8 March 2025
In computer programming, an S-expression (or symbolic expression, abbreviated as sexpr or sexp) is an expression in a like-named notation for nested list...
14 KB (1,716 words) - 20:17, 4 March 2025
A regular expression (shortened as regex or regexp), sometimes referred to as rational expression, is a sequence of characters that specifies a match...
97 KB (8,860 words) - 13:14, 22 May 2025
Gene expression is the process (including its regulation) by which information from a gene is used in the synthesis of a functional gene product that enables...
104 KB (11,643 words) - 09:45, 24 May 2025
Lisp (programming language) (redirect from Lambde expressions in Lisp)
bracketed "M-expressions" that would be translated into S-expressions. As an example, the M-expression car[cons[A,B]] is equivalent to the S-expression (car...
87 KB (10,027 words) - 17:17, 24 May 2025
In mathematics, an expression is a written arrangement of symbols following the context-dependent, syntactic conventions of mathematical notation. Symbols...
44 KB (5,456 words) - 07:42, 22 May 2025
Facial expression is the motion and positioning of the muscles beneath the skin of the face. These movements convey the emotional state of an individual...
31 KB (4,016 words) - 00:11, 30 January 2025
Transient expression, more frequently referred to "transient gene expression", is the temporary expression of genes that are expressed for a short time...
15 KB (1,857 words) - 07:46, 28 October 2024
of”, and the suffix -topic, meaning "place." Ectopic expression is an abnormal gene expression in a cell type, tissue type, or developmental stage in...
8 KB (1,023 words) - 03:05, 22 January 2024
gene expression Transcription (genetics) translation λ phage pBR322 Lodes, M. J.; Dillon, D. C.; Houghton, R. L.; Skeiky, Y. A. (2004). Expression cloning...
2 KB (225 words) - 19:05, 1 September 2023
syntax based on M-Expressions, which were the function syntax in the original description of Lisp by John McCarthy. McCarthy's M-expressions were never implemented...
4 KB (395 words) - 21:35, 25 December 2021
An emotional expression is a behavior that communicates an emotional state or attitude. It can be verbal or nonverbal, and can occur with or without self-awareness...
47 KB (5,598 words) - 00:21, 23 May 2025
language may deviate from the M-expression paradigm when an alternative, more human-friendly way of showing an expression is available: A number of formatting...
16 KB (1,381 words) - 01:13, 2 May 2025
A predicative expression (or just predicative) is part of a clause predicate, and is an expression that typically follows a copula or linking verb, e.g...
9 KB (1,048 words) - 15:44, 13 March 2025
In computer science, a "let" expression associates a function definition with a restricted scope. The "let" expression may also be defined in mathematics...
41 KB (5,006 words) - 18:17, 2 December 2023
In linguistics, a phatic expression (English: /ˈfætɪk/, FAT-ik) is a communication which primarily serves to establish or maintain social relationships...
18 KB (2,366 words) - 22:20, 17 April 2025
An expression vector, otherwise known as an expression construct, is usually a plasmid or virus designed for gene expression in cells. The vector is used...
34 KB (4,182 words) - 17:22, 7 December 2024
Regulation of gene expression, or gene regulation, includes a wide range of mechanisms that are used by cells to increase or decrease the production of...
45 KB (5,236 words) - 08:23, 27 October 2024
Lambda calculus (redirect from Lamda expression)
(\lambda y.M[y])} : α-conversion, renaming the bound variables in the expression. Used to avoid name collisions. ( ( λ x . M ) N ) → ( M [ x := N ]...
89 KB (11,994 words) - 17:12, 1 May 2025
Gender expression (or gender presentation) is a person's behavior, mannerisms, interests, and appearance that are associated with gender in a particular...
11 KB (1,283 words) - 20:48, 6 May 2025
path expressions identify an object by describing how to navigate to it in some graph (possibly implicit) of objects. For example, the path expression p...
3 KB (408 words) - 00:23, 15 September 2024
A multiword expression (MWE), also called phraseme,[citation needed] is a lexeme-like unit made up of a sequence of two or more lexemes that has properties...
7 KB (935 words) - 22:33, 4 May 2025
McCarthy called "m-expressions". As an example, the m-expression car[cons[A,B]] is equivalent to the s-expression (car (cons A B)). S-expressions proved popular...
17 KB (2,021 words) - 01:08, 10 May 2025
The Expression Atlas is a database maintained by the European Bioinformatics Institute that provides information on gene expression patterns from RNA-Seq...
4 KB (335 words) - 09:03, 16 November 2024
Spatiotemporal gene expression is the activation of genes within specific tissues of an organism at specific times during development. Gene activation...
12 KB (1,411 words) - 06:14, 28 October 2024
The Expression were an Australian synthpop band formed in Sydney in 1981 and disbanded in 1985. Their best known single, "With Closed Eyes", was released...
12 KB (986 words) - 03:49, 9 March 2025
In computer science, a parsing expression grammar (PEG) is a type of analytic formal grammar, i.e. it describes a formal language in terms of a set of...
47 KB (6,505 words) - 18:00, 1 February 2025
In mathematics, an expression or equation is in closed form if it is formed with constants, variables, and a set of functions considered as basic and connected...
15 KB (1,764 words) - 02:05, 19 May 2025
Freedom of speech (redirect from Right of free expression)
of retaliation, censorship, or legal sanction. The right to freedom of expression has been recognised as a human right in the Universal Declaration of Human...
99 KB (10,273 words) - 12:20, 23 May 2025
The T7 expression system is utilized in the field of microbiology to clone recombinant DNA using strains of E. coli. It is the most popular system for...
6 KB (798 words) - 13:00, 16 April 2025