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BDA (TSA program) Behavior Detection and Analysis ( BDA ), until 2016 called Screening of Passengers by Observation Techniques ( SPOT ), is a program launched in the United States by the Transportation Security Administration to identify potential terrorists among people at an airport by a set of 94 objective criteria, all of which are signs ...
Spot analysis, spot test analysis, or spot test is a chemical test, a simple and efficient technique where analytic assays are executed in only one, or a few drops, of a chemical solution, preferably in a great piece of filter paper, without using any sophisticated instrumentation. The development and popularization of the test is credited to ...
A spot test in lichenology is a spot analysis used to help identify lichens. It is performed by placing a drop of a chemical reagent on different parts of the lichen and noting the colour change (or lack thereof) associated with application of the chemical. The tests are routinely encountered in dichotomous keys for lichen species, and they ...
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An interactive whiteboard ( IWB ), also known as interactive board, interactive display, interactive digital board or smart board, is a large interactive display board in the form factor of a whiteboard. It can either be a standalone touchscreen computer used independently to perform tasks and operations, or a connectable apparatus used as a ...
Notation for calculating the wave amplitude at point P 1 from a spherical point source at P 0.. At the heart of Fresnel's wave theory is the Huygens–Fresnel principle, which states that every unobstructed point of a wavefront becomes the source of a secondary spherical wavelet and that the amplitude of the optical field E at a point on the screen is given by the superposition of all those ...
Whiteboard with marker and eraser. A whiteboard (also known by the terms marker board, dry-erase board, dry-wipe board, and pen-board) is a glossy, usually white surface for making non-permanent markings. Whiteboards are analogous to blackboards, but with a smoother surface allowing for rapid marking and erasing of markings on their surface.
The name of the strategy refers to the way ink spots spread on a piece of blotting paper or tissue, starting as tiny scattered points but spreading to cover most or all of the paper. Historically, the inkspot strategy is associated with the Malayan Emergency and the Vietnam War. More recently, the term has been used in reference to the NATO ...