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Perceptual control theory (PCT) is a model of behavior based on the properties of negative feedback control loops. A control loop maintains a sensed variable at or near a reference value by means of the effects of its outputs upon that variable, as mediated by physical properties of the environment.
William T. Powers (August 29, 1926 – May 24, 2013) was a medical physicist and an independent scholar of experimental and theoretical psychology [1] [2] [3] who developed the perceptual control theory (PCT) model of behavior as the control of perception.
The computer program exclusion was indeed inserted in the EPC in line with Rule 39.1 PCT, so that Rule 39.1 predates Art. 52(2) and (3) EPC. [7] However, while the PCT condition for excluding computer programs is a question of equipment, the EPC condition is a question of "computer program as such".
pct, an abbreviation for "%" PCT theorem, on parity, charge and time inversions; Perceptual control theory, a model of behavior; Personal Communication Telephone, a mobile telephone service; Polychlorinated terphenyl, an industrial chemical; Polycyclohexylenedimethylene terephthalate, a thermoplastic polyester
The postcoital test (PCT), also known as the Sims test, Hühner test ,Sims–Hühner test, or cervical mucous penetration assay is a test in the evaluation of infertility. The test examines interaction between sperm and mucus of the cervix .
The prism cover test (PCT) is an objective measurement and the gold standard in measuring strabismus, i.e. ocular misalignment, or a deviation of the eye. [1] It is used by ophthalmologists, orthoptists, and optometrists in order to measure the vertical and horizontal deviation and includes both manifest and latent components. [ 1 ]
Post-coital tristesse (/ t r i ˈ s t ɛ s /; PCT), also known as post-coital dysphoria (PCD), is the feeling of sadness, anxiety, agitation or aggression, after orgasm in sexual intercourse or masturbation.
The PCT Gazette is a weekly bilingual publication of the World Intellectual Property Organization (WIPO). It is published by the International Bureau of WIPO pursuant to Article 55 of the Patent Cooperation Treaty (PCT), [ 1 ] which provides a system for filing international ( patent ) applications .