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The specific characteristics of a putative fifth force depend on which hypothesis is being advanced. No evidence to support these models has been found. The term is also used as "the Fifth force" when referring to a specific theory advanced by Ephraim Fischbach in 1971 to explain experimental deviations in the theory of gravity. Later analysis ...
George Gerbner, the founder of the cultivation theory, expanded Lasswell's model in 1956 to focus "attention on perception and reaction by the perceiver and the consequences of the communication". [19] Laswell's 5W model of communication was expanded by Richard Braddock into a 7W model in his 1958 paper "An Extension of Lasswell's Formula".
Communication theories vary substantially in their epistemology, and articulating this philosophical commitment is part of the theorizing process. [1] Although the various epistemic positions used in communication theories can vary, one categorization scheme distinguishes among interpretive empirical, metric empirical or post-positivist, rhetorical, and critical epistemologies. [13]
Development communication has been labeled as the "Fifth Theory of the Press", with "social transformation and development", and "the fulfillment of basic needs" as its primary purposes. [3] Jamias articulated the philosophy of development communication which is anchored on three main ideas.
Frank Dance's helical model of communication was initially published in his 1967 book Human Communication Theory. [161] [162] [163] It is intended as a response to and an improvement over linear and circular models by stressing the dynamic nature of communication and how it changes the participants. Dance sees the fault of linear models as ...
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Some theories beyond the Standard Model include a hypothetical fifth force, and the search for such a force is an ongoing line of experimental physics research. In supersymmetric theories, some particles acquire their masses only through supersymmetry breaking effects and these particles, known as moduli , can mediate new forces.
The discovery could “completely change our understanding of the universe, with consequences for the unification of forces and dark matter.”