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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.
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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
The French rape trial that shocked the world and sparked widespread calls for justice for women rape victims ended on Thursday with the conviction of 51 men for raping and attempting to rape ...
Default PDF and file viewer for GNOME; replaces GPdf. Supports addition and removal (since v3.14), of basic text note annotations. CUPS: Apache License 2.0: No No No Yes Printing system can render any document to a PDF file, thus any Linux program with print capability can produce PDF files Pdftk: GPLv2: No Yes Yes
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In 2008, it was transformed into a search system for not only published PCT applications, but also national and regional patent collections. [ 2 ] [ 3 ] In 2009 it counted with 9 data collections. In 2013, with the addition of the United States Patent and Trademark Office (USPTO) and China’s national patent collections the database past the ...