In theory, compulsive behavior is a way of diminishing anxiety, and one might expect a negative association except for the possibility that for many children the obsessive-compulsive defenses are not sufficient to quell the amount of anxiety they suffer.

This can only be for one of two reasons: either the two are quite different and will require totally different theory ( and hence techniques ), or our existing theories are insufficiently general.

According to the theory underlying odd-lot indices, the trader who trades odd lots is most likely a small trader, one who can't afford to trade round lots.

It appeared that the theory could be saved in one way only.

Perhaps one way to sharpen our sense of the modernity of Utopian communism is to contrast it with the principal earlier types of communistic theory.

In the second-order theory, one of the normal stress differences can be calculated from the first-order stress relaxation function.

Unless one takes refuge in the theory -- however disguised -- that Negroes are, somehow, different from white people, I do not see how one can escape the conclusion that the Negro's status in this country is not only a cruel injustice but a grave national liability.

It is borne out also by the absence of any developed theory about how sin passes from one generation to the next.

Selective investment theory proposes that close social bonds, and associated emotional, cognitive, and neurohormonal mechanisms, evolved in order to facilitate long-term, high-cost altruism between those closely depending on one another for survival and reproductive success.

Various atoms and molecules as depicted in John Dalton's A New System of Chemical Philosophy ( 1808 ), one of the earliest scientific works on atomic theory

They both approach fellow doctors and town authorities about their theory, but are eventually dismissed on the basis of one death.

When thinking about orbitals, we are often given an orbital vision which ( even if it is not spelled out ) is heavily influenced by this Hartree – Fock approximation, which is one way to reduce the complexities of molecular orbital theory.

* Atonement – Wesley's atonement is a hybrid of the penal substitution theory and the governmental theory of Hugo Grotius, a lawyer and one of the Remonstrants.

This is an example of renormalization in quantum field theory — the field theory being necessary because the number of particles changes from one to two and back again.

In one such theory, put forward by Sir E. B. Tylor, early humans initially, through mere observation, recognized what might be called a soul, life-force, spirit, breath or animus within themselves ; that which was present in the body in life and absent in death.

Wallace was one of the leading evolutionary thinkers of the 19th century and made a number of other contributions to the development of evolutionary theory besides being co-discoverer of natural selection.

In that setting one can use birational geometry, techniques from number theory, Galois theory and commutative algebra, and close analogues of the methods of algebraic topology, all in an integrated way.

Weil realized that to prove such a connection one needed a new cohomology theory, but neither he nor any other expert saw how to do this until such a theory was found by Grothendieck.

Ann Arbor was founded in 1824, with one theory stating that it is named after the spouses of the city's founders and for the stands of trees in the area.

In mathematics, the axiom of regularity ( also known as the axiom of foundation ) is one of the axioms of Zermelo – Fraenkel set theory and was introduced by.

Analogously, anyone who argues that Einstein's theory of gravitation is simpler than Newton's, must say rather more to explain how it is that the latter is mastered by student-physicists, while the former can be managed ( with difficulty ) only by accomplished experts.

The Axioms required to make the theoretical machinery operate are set out tersely and powerfully, so that all permissible operations within the theory can be traced rigorously back to these axioms, rules, and primitive notions.

The point is that an ethical critic, with an assist from Freud, can seize on this theory to argue that tragedy provides us with a harmless outlet for our hostile urges.

Philosophy can prevent the working scientist from becoming slothful and self-content by noting the assumptions and level at which a hypothesis or theory is framed.

But then this theory confesses that it is completely at a loss as to how the image can possibly be received by the brain.

The exact number and placement of Endosymbiotic theory | endosymbiotic events is currently unknown, so this diagram can be taken only as a general guide It represents the most parsimonious way of explaining the three types of endosymbiotic origins of plastids.

Brønsted-Lowry theory can also be used to describe molecular compounds, whereas Arrhenius acids must be ionic compounds.

The second reaction can be described using either theory.

" Thus Boolos and Jeffrey are saying that an algorithm implies instructions for a process that " creates " output integers from an arbitrary " input " integer or integers that, in theory, can be chosen from 0 to infinity.

For example, in some groups, the group operation is commutative, and this can be asserted with the introduction of an additional axiom, but without this axiom we can do quite well developing ( the more general ) group theory, and we can even take its negation as an axiom for the study of non-commutative groups.

Sometimes slightly stronger theories such as Morse-Kelley set theory or set theory with a strongly inaccessible cardinal allowing the use of a Grothendieck universe are used, but in fact most mathematicians can actually prove all they need in systems weaker than ZFC, such as second-order arithmetic.

Of course, the current state of technology at any given time can put limitations on what can be achieved experimentally and theoretically so it may take considerable time for theory to be refined.

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 ).

In theory it can occur only in nuclei somewhat heavier than nickel ( element 28 ), where overall binding energy per nucleon is no longer a minimum, and the nuclides are therefore unstable toward spontaneous fission-type processes.

In quantum field theory, this process is allowed only as an intermediate quantum state for times short enough that the violation of energy conservation can be accommodated by the uncertainty principle.

The more ambitious theory of Wilhelm Nitsche, which assigned to Anaximenes a larger part of the Demosthenic corpus ( speeches 10-13 and 25, letters 1-4, proems ), can be rejected.

From about 1955 he started to work on sheaf theory and homological algebra, producing the influential " Tôhoku paper " ( Sur quelques points d ' algèbre homologique, published in 1957 ) where he introduced Abelian categories and applied their theory to show that sheaf cohomology can be defined as certain derived functors in this context.

The central concern of Erich Auerbach's impressive volume called Mimesis is to describe the shift from a classic theory of imitation ( based upon a recognition of levels of truth ) to a Christian theory of imitation in which the levels are dissolved.

There is no documented evidence for this theory, however, and, the word liti was probably borrowed from 16th-18th century writings in Latin, where the word lituus could describe various wind instruments, such as the horn, the crumhorn, or the cornett.

Although Zermelo's fix allows a class to describe arbitrary ( possibly " large ") entities, these predicates of the meta-language may have no formal existence ( i. e., as a set ) within the theory.

The theory is also used in nuclear physics to describe the pairing interaction between nucleons in an atomic nucleus.

Extensions of BCS theory exist to describe these other cases, although they are insufficient to completely describe the observed features of high-temperature superconductivity.

The term " Brownian motion " can also refer to the mathematical model used to describe such random movements, which is often called a particle theory.

In the sense of this article, a naive theory is a non-formalized theory, that is, a theory that uses a natural language to describe sets.

Links in this article to specific axioms of set theory describe some of the relationships between the informal discussion here and the formal axiomatization of set theory, but no attempt is made to justify every statement on such a basis.

processes that describe and transform information: their theory, analysis, design, efficiency, implementation, and application.

This problem is called the baryon asymmetry, and the theory to describe the resolution is called baryogenesis.

The effect on cosmology of the dark energy that these models describe is given by the dark energy's equation of state, which varies depending upon the theory.

This has led to the very literal use of ' critical theory ' as an umbrella term to describe any theory founded upon critique.

As a term, critical theory has two meanings with different origins and histories: the first originated in sociology and the second originated in literary criticism, whereby it is used and applied as an umbrella term that can describe a theory founded upon critique ; thus, the theorist Max Horkheimer described a theory as critical in so far as it seeks " to liberate human beings from the circumstances that enslave them.

As a result he started to use the term person-centered approach later in his life to describe his overall theory.

Jean-Baptiste Lamarck ( 1744-1829 ) was the first biologist to describe a complex theory of evolution.