In the course of studying the problem, Church and his student Stephen Kleene introduced the notion of λ-definable functions, and they were able to prove that several large classes of functions frequently encountered in number theory were λ-definable.

Habermas engaged in regular correspondence with Richard Rorty and a strong sense of philosophical pragmatism may be felt in his theory ; thought which frequently traverses the boundaries between sociology and philosophy.

In her theory the male psyche's ' Horned God ' frequently compensates for inadequate fathering.

In contemporary legal theory, the utilitarian approach is frequently championed by scholars who work in the law and economics tradition.

An explanation of lift frequently encountered in basic or popular sources is the equal transit-time theory.

In contemporary legal theory, the utilitarian approach is frequently championed by scholars who work in the law and economics tradition.

Quantum field theory frequently makes use of the Lagrangian formalism from classical field theory.

Gould is one of the most frequently cited scientists in the field of evolutionary theory.

The S-parameter S < sub > 11 </ sub > from two-port network theory is frequently also called return loss, but is actually equal to Γ.

Simulations of organized traffic frequently involve queuing theory, stochastic processes and equations of mathematical physics applied to traffic flow.

Clouseau is also not particularly intelligent, and will frequently follow a completely idiotic theory of the crime, solving the case only by accident.

In fact, former president Chen Shui-bian has been frequently emphasizing the popular sovereignty theory in his speeches.

Working within the fragmentary theory, Karl Lachmann ( 1835 ) compared the synoptic gospels in pairs and noted that while Matthew frequently agreed with Mark against Luke in the order of passages and Luke agreed frequently with Mark against Matthew, Matthew and Luke rarely agreed with each other against Mark.

This channel is used frequently in information theory because it is one of the simplest channels to analyze.

Optimality theory ( frequently abbreviated OT ) is a linguistic model proposing that the observed forms of language arise from the interaction between conflicting constraints.

This can be understood to be a fairly catastrophic situation ; it is frequently encountered in chaotic dynamical systems, and requires the development of techniques other than perturbation theory to solve the problem.

Both regular and singular perturbation theory are frequently used in physics and engineering.

Mercantilist economic theory and practices of the 16th, 17th, and 18th centuries frequently advocated building up domestic manufacturing and import substitution.

For example, in the years since the publication of Jung ’ s work on synchronicity, some writers largely sympathetic to Jung's approach have taken issue with certain aspects of his theory, including the question of how frequently synchronicity occurs.

Their generational theory is frequently cited in books and articles on the subject.

Whereas chess opening theory changes frequently, giving way to middlegame positions that fall in and out of popularity, endgame theory always remains constant.

The and convention for amino acid configuration refers not to the optical activity of the amino acid itself, but rather to the optical activity of the isomer of glyceraldehyde from which that amino acid can, in theory, be synthesized (- glyceraldehyde is dextrorotary ;-glyceraldehyde is levorotatory ).

Specifically, neocolonialism refers to the theory that former or existing economic relationships, such as the General Agreement on Tariffs and Trade and the Central American Free Trade Agreement, created by former colonial powers were or are used to maintain control of their former colonies and dependencies after the colonial independence movements of the post – World War II period.

In computational complexity theory, a problem refers to the abstract question to be solved.

The neoclassical synthesis refers to the reconciliation of Keynesian economics with neoclassical economics, stating that Keynesianism is correct in the short run, with the economy following neoclassical theory in the long run.

The concept of self-efficacy, which played an important role in later developments of the theory, refers to the learner's belief in his or her ability to perform the modeled behavior.

In graph theory, the term fullerene refers to any 3-regular, planar graph with all faces of size 5 or 6 ( including the external face ).

One theory is that the term refers to the mixing techniques of DJs who spun this form of music in its pre-house incarnations.

But the theory refers only to aggregate wealth and says nothing about the distribution of wealth ; in fact there may be significant losers, in particular among the recently protected industries with a comparative disadvantage.

Interference theory refers to the idea that when the learning of something new causes forgetting of older material on the basis of competition between the two.

In film theory, genre ( or ) refers to the method based on similarities in the narrative elements from which films are constructed.

Network information theory refers to these multi-agent communication models.

( However, this refers to the theory ’ s application rather than to its derivation.

The first refers to a theory of regional integration originally proposed by Stanley Hoffman.

In the People's Republic of China ( PRC ) since 1967, the terms Ultra-Left and left communist refers to political theory and practice self-defined as further " left " than that of the central Maoist leaders at the height of the GPCR (" Great Proletarian Cultural Revolution ").

To philosophers it refers to a particular theory of physical probability, one that has more or less been abandoned.

Platonic idealism usually refers to Plato's theory of forms or doctrine of ideas,

According to this theory, the name of Parthenon means the " temple of the virgin goddess " and refers to the cult of Athena Parthenos that was associated with the temple.

In quantum mechanics, it refers to a discrete unit that quantum theory assigns to certain physical quantities, such as the energy of an atom at rest ( see Figure 1 ).

* In test theory, standardization refers to measurements or assessments conducted under exact, specified, and repeatable conditions.

This theory is supported by a reference within the Star Trek: Enterprise episode " United ": Senator Vrax refers to Vulcans as " our distant brothers " during the first part of the episode.

In game theory, a strategy refers to one of the actionable options that a player can choose.

In modern science, the term " theory " refers to scientific theories, a well-confirmed type of explanation of nature, made in a way consistent with scientific method, and fulfilling the criteria required by modern science.

Often the term " political theory " refers to a general view, or specific ethic, political belief or attitude, about politics.

In science, the term " theory " refers to " a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment.

Much of this may be categorized as computational chemistry, although computational chemistry usually refers to the application of theoretical chemistry in an applied setting, usually with some approximation scheme such as certain types of post-Hartree – Fock, density functional theory, semiempirical methods ( such as PM3 ) or force field methods.