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The theta-criterion (also named θ-criterion) is a constraint on x-bar theory that was first proposed by Noam Chomsky as a rule within the system of principles of the government and binding theory, called theta-theory (θ-theory). As theta-theory is concerned with the distribution and assignment of theta-roles (a.k.a. thematic roles), the theta ...
Government and binding (GB, GBT) is a theory of syntax and a phrase structure grammar in the tradition of transformational grammar developed principally by Noam Chomsky in the 1980s. [ 1 ] [ 2 ] [ 3 ] This theory is a radical revision of his earlier theories [ 4 ] [ 5 ] [ 6 ] and was later revised in The Minimalist Program (1995) [ 7 ] and ...
The binding of a ligand to a macromolecule is often enhanced if there are already other ligands present on the same macromolecule (this is known as cooperative binding). The Hill equation is useful for determining the degree of cooperativity of the ligand(s) binding to the enzyme or receptor.
The book covers, in its first edition, government and binding theory, X-bar theory, theta role, movement, second-language acquisition (SLA). [1] The third edition adds coverage of the minimalist program, a line of research that began in the 1990s, and updates its presentation of government and binding theory. [2]
In government and binding theory this is known as proper government. Proper government occurs either if the empty position is governed by a lexical category (especially if it is not a subject) (theta-government) or if it is coindexed with a maximal projection which governs it (antecedent-government). The ECP has been revised many times and is ...
Principles and parameters as a grammar framework is also known as government and binding theory. That is, the two terms principles and parameters and government and binding refer to the same school in the generative tradition of phrase structure grammars (as opposed to dependency grammars).
The first description of cooperative binding to a multi-site protein was developed by A.V. Hill. [4] Drawing on observations of oxygen binding to hemoglobin and the idea that cooperativity arose from the aggregation of hemoglobin molecules, each one binding one oxygen molecule, Hill suggested a phenomenological equation that has since been named after him:
In quantum mechanics, the Berry phase arises in a cyclic adiabatic evolution. The quantum adiabatic theorem applies to a system whose Hamiltonian H ( R ) {\displaystyle H(\mathbf {R} )} depends on a (vector) parameter R {\displaystyle \mathbf {R} } that varies with time t {\displaystyle t} .