Theories connecting Ēostre with records of Germanic Easter customs ( including hares and eggs ) have been proposed.

Several Grand Unified Theories ( GUTs ) have been proposed to unify electromagnetism and the weak and strong forces.

Theories of an impersonal universe governed by physical laws were first proposed by the Greeks and Indians.

Theories have been proposed that Víðarr's silence may derive from a ritual silence or other abstentions which often accompany acts of vengeance, as for example in Völuspá and Baldrs draumar when Váli, conceived for the sole purpose of avenging Baldr's death, abstains from washing his hands and combing his hair " until he brought Baldr's adversary to the funeral pyre ".

Theories have been proposed that these figures are connected to valkyries.

Theories have been proposed suggesting that the Pied Piper is a symbol of the children's death by plague or catastrophe.

Theories have been proposed about the Greek origin of the symbol and its implications.

Theories held by mainstream Egyptologists about the date of the construction of the Great Sphinx of Giza have been challenged and various alternative theories have been proposed – about the builder or the dating – to explain its construction.

Theories, such as scattering, have been proposed for the formation of large planets close in to their parent stars.

The generalization to N =( 2, 2 ) supersymmetric theories in 2 spacetime dimensions was proposed by Cumrun Vafa and Nicholas Warner in the November 1988 article Catastrophes and the Classification of Conformal Theories, in this generalization one imposes that the superpotential possess a degenerate critical point.

Theories have been proposed that this description may have some relation to notions of the Jordan River due to phonetic and typological similarities perceived by Eilífr, though there may be no other causative connection.

Theories have been proposed about the implications of the descriptions of the temple and the findings ( or lack thereof ) of the archaeological excavations in the area.

Theories have been proposed about the possible appearance of Róta in Gesta Danorum and the meaning of her name.

* Leslie Stevenson, David L. Haberman, " Ten Theories of Human Nature " Oxford University Press ( 2004 )-book examines each one of four points — the nature of the universe, the nature of humanity, the diagnosis of the ills of humanity, and the proposed cure for these problems.

Theories have been proposed connecting the Harii to the Einherjar of much later Norse mythology, and to the tradition of the Wild Hunt.

The programs were so well received by the British public that the arguments have been published in a totally engrossing little book called, `` Rival Theories Of Cosmology ''.

Theories of apparently altruistic behavior were accelerated by the need to produce theories compatible with evolutionary origins.

Theories that attempt to explain ancient urbanism by a single factor, such as economic benefit, fail to capture the range of variation documented by archaeologists.

A slightly larger count ( but still better than split radix for N ≥ 256 ) was shown to be provably optimal for N ≤ 512 under additional restrictions on the possible algorithms ( split-radix-like flowgraphs with unit-modulus multiplicative factors ), by reduction to a Satisfiability Modulo Theories problem solvable by brute force ( Haynal & Haynal, 2011 ).

Theories on the use of graffiti by avant-garde artists have a history dating back at least to the Scandinavian Institute of Comparative Vandalism in 1961.

Theories that Cronje was murdered on the orders of a cricket betting syndicate flourished after his death and were most recently re-floated by former Nottinghamshire coach Clive Rice in the wake of the death of Pakistan coach Bob Woolmer in March 2007.

Theories on consolidation are supported by concussion studies.

** Natural Law Theories, by John Finnis, 2007.

Theories as to the cause of the increase are the possibility that the reduction of stomach acid reduces the amount of calcium dissolved in the stomach or that PPIs may interfere with the breakdown and rebuilding of bone by interfering with the acid production of osteoclasts.

As Rolf Wiggershaus recounts in The Frankfurt School, Its History, Theories and Political Significance ( MIT 1995 ), Lazarsfeld was the director of a project, funded and inspired by David Sarnoff ( the head of RCA ), to discover both the sort of music that listeners of radio liked and ways to improve their " taste ", so that RCA could profitably air more classical music.

Theories are improved ( or replaced by better theories ) as more evidence is gathered, so that accuracy in prediction improves over time ; this increased accuracy corresponds to an increase in scientific knowledge.

Theories of a cover-up still persisted, some of which were promulgated by the Arkansas Project.

even garnered some attention outside of literary criticism, having several pages devoted to it in a chapter on the American New Right in Architects of Fear: Conspiracy Theories and Paranoia in American Politics by George Johnson ( 1983 ).

# Theories also help place events in a causal context that is greater than common sense alone can provide, because commonsense causation is inherently limited by what we see and experience.

Theories of nucleosynthesis are tested by calculating isotope abundances and comparing with observed results.

In 1482 he wrote a Commentum planetarium in theoricas Georgii Purbachii — a commentary on Georg von Peuerbach's text, New Theories of the Planets — published in Milan by his pupil, Jan Otto de Kraceusae.

Theories include sudden death by a plague that was sweeping through the city or another natural death.

Theories based on the Phillips curve suggested that this could not happen, and the curve came under a concerted attack from a group of economists headed by Milton Friedman.

Theories in various fields of study are expressed in natural language, but are always constructed in such a way that their general form is identical to a theory as it is expressed in the formal language of mathematical logic.

" Theories must also meet further requirements, such as the ability to make falsifiable predictions with consistent accuracy across a broad area of scientific inquiry, and production of strong evidence in favor of the theory from multiple independent sources.

Theories invoking divergent rather than convergent thinking ( such as Guilford ), or those describing the staging of the creative process ( such as Wallas ) are primarily theories of creative process.

Theories to explain the success of such companies include reliance on certain policies of the American federal government or a tendency to natural monopolies in the industry.

Theories involving the inheritance of acquired characteristics were among the most popular alternatives to natural selection, and scientists who felt that such Lamarckian mechanisms were the key to evolution were called neo-Lamarckians.

This theory was adapted and augmented by researchers interested in the relationship between technology and social structures ( see Theories of technology ), such as information technology in organizations.

Theories adding philosophic backing to its own conceptualizations from such ideas as diplomatic recognition and the sovereign state's right to exist as it were extending beyond territorial nation-state in an international structure, to an intranational structure of the voluntary association of those with similar social world views being codified legal frameworks to themselves, within their own sphere of interaction, under a federal government of a particular nation state & relying on infrastructural power for implementation.

Theories, such as Blumer's, endure and are useful but, as is true of science in general, the empirical studies for which they provide guidance are of less enduring interest.

Theories with supersymmetry usually guarantee that such " superextremal " black holes can't exist.

Theories as to the reason for the claimed change in flavor include that the secret formula has been changed to use new products not originally available to Vernor, such as high fructose corn syrup ; that it seems to have less carbonation than formerly ; and that Vernors is no longer aged four years, but three in oak barrels.

Theories of the beginning of the Universe are based on the currently-known laws of particle physics, where matter is created from energy in such a way that equal amounts of particles and antiparticles are produced.

In particle physics, the doublet-triplet ( splitting ) problem is a problem of some Grand Unified Theories, such as SU ( 5 ), SO ( 10 ),.

Theories that do not posit separate syntactic levels like deep structure and surface structure, such as lexical-functional grammar and head-driven phrase structure grammar, do not use movement rules as such in their analyses.

" The Encyclopedia of Psychology " Motivation: Philosophical Theories " says, " Some mental states seem capable of triggering action, while others — such as cognitive states — apparently have a more subordinate role terms of motivation ... some behavior qualifies as motivated action, but some does not.

Theories such as Félix Guattari's concept of microfascism and Wilhelm Reich's theory of fascism as repressive-desire provide an analytical basis for interpreting intolerance, chauvinism, and authoritarianism as " fascist ".

The New School's curriculum is highly experimental and avant-garde, offering classes such as: " Heterodox Identities ", " Games 101 ", " NYC: Graphic Gotham ", " Punk & Noise ", " Masculinity in Asia ," " Queer Culture ", " Theories of Mind ", and " Play and Toil in the Digital Sweatshop ".

Theories have tried either to set further conditions to the kind of resemblance necessary, or sought ways in which a notational system might allow such resemblance.

Theories such as behaviorism, constructivism, social learning and cognitivism help shape and define the outcome of instructional materials.