Professional Development Plan - Part of the new PI-34 requirements that replace the old 6 credits or 180 DPI Equivalency Clock Hours every five years for educator license renewal in Wisconsin. PERCENTILE - One of the 99 point scores that divide a ranked distribution into groups, each of which contains 1/100 of the scores. The 73rd percentile denotes the score or point below which 73 percent of the scores fall in a particular distribution of scores.
Professional Development Program. A national training program attended by educators and law enforcement to familiarize them with the i-SAFE's components and provide them a solid baseline of knowledge in the field of Internet safety. On completion of a PDP, attendees are i-SAFE certified and qualified to take the curriculum into the classroom, train others, and/or develop the i-SAFE program within their communities or organizations.
Pesticide Data Program. A program initiated in 1991 by the Agricultural Marketing Service to collect pesticide residue data on selected food commodities, primarily fruits and vegetables. PDP data are used by the Environmental Protection Agency to support its dietary risk assessment process and pesticide registration process, by the Food and Drug Administration to refine sampling for enforcement of tolerances, by the Foreign Agricultural Service, to support export of U.S. commodities in a competitive global market, by the Economic Research Service to evaluate pesticide alternatives, and by the public sector to address food safety issues.
Personal development plan. Planning document focusing on individual needs as they relate to a person's present situation and future expectations in terms of careers prospects. Can be used for learners, teachers or any other professionals.
PDPs, also known as gas plasma displays or plasma screens, are flat screen display devices that are used for television, computer monitors, and dynamic signage. They consist of two layers of glass surrounding cells of xenon and neon glass. Surrounding electrodes switch the cells on and off, causing them to emit light and create the picture. This emitted light makes PDPs have an appealing vibrancy that competes with Cathode Ray Tubes (CRTs), the technology of traditional televisions.
pattern discrimination perimetry. a type of visual field testing in which damage is detected in large optic nerve fibers carrying information on form and motion, thus theoretically revealing glaucomatous nerve damage earlier than conventional perimetry which detects damage primarily in smaller nerve fibers using spots of light; utilizes a checkerboard pattern on a moving background of random “noise” and presented to various points of the retina
parallel distributed processing. Models of cognitive processing in which the relevant symbolic representations do not correspond to any one unit of the network but to the state of the network as a whole.
Computers manufactured by Digital Equipment Corporation. UNIX was originally written for a PDP-7 and gained popularity on the PDP-11. The entire series were inexpensive mini-computers popular with educational institutions and small businesses.