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Topic: Commutation test (semiotics)

	Semiotics - Wikipedia, the free encyclopedia
		Semiotics theorises at a general level about signs, while the study of the communication of information in living organisms is covered in biosemiotics.
		To explain the relationship between semiotics and communication studies, communication is defined as the process of transferring data from a source to a receiver as efficiently and effectively as possible.
		Semiotics differs from linguistics in that it generalizes the definition of a sign to encompass signs in any medium or sensory modality.
	en.wikipedia.org /wiki/Semiotics (2061 words)

	Encyclopedia :: encyclopedia : Canonical commutation relation (Site not responding. Last check: 2007-10-02)
		By contrast, in classical physics all observables commute and the commutator would be zero; however, an analogous relation exists, which is obtained by replacing the commutator with the Poisson bracket and the constant
		The uniqueness of the canonical commutation relations between position and momentum is guaranteed by the Stone-von Neumann theorem.
		The group associated with the commutation relations is called the Heisenberg group.
	www.hallencyclopedia.com /Canonical_commutation_relation (306 words)

	Semiotics
		Although both start from the same point, semiotics links linguistic facts to non-linguistic facts to give a broader empirical coverage and to offer conclusions that seem more plausible because, intuitively, humans understand that one can only interpret language in a social context (sometimes termed the semiosphere).
		Pure linguistics dismantles language into its components, analysing usage in slow-time, whereas, in the real world of human semiotic interaction there is an often chaotic blur of language and signal exchange which semiotics attempts to analyse and so identify the systemic rules accepted by all the participants.
		He also posed the equation between semiosis (the activity of interpreting signs) and life.
	www.brainyencyclopedia.com /encyclopedia/s/se/semiotics.html (1816 words)

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