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ground

 [grownd]
1. a path of conduction from an electrical circuit to the earth.
2. to connect an electrical circuit or electrical equipment to the earth.
3. zero electrical potential.

ground

Etymology: AS, grund
1 (in electricity) a connection between the electric circuit and the ground, which becomes a part of the circuit.
2 (in psychology) the background of a visual field that can enhance or inhibit the ability of a patient to focus on an object.

ground

1. Basic substance or foundation.
2. Reduced to a powder; pulverized.
3. In electronics, the negative or earth pole that has zero electrical potential.

figure

A part or pattern in the visual field which has the perceptual attribute of completeness and is perceived as distinct from the rest of the field which forms the ground. Example: a printed word against a background page.
ambiguous figure An image or drawing arranged in such a way that its perception oscillates or flips involuntarily between, usually, two interpretations even though the retinal image remains constant, thus indicating that higher cortical processing are involved. Syn. reversible figure. See Blivet figure; Kanizsa figure; illusion; Necker cube; Rubin's vase; Schroeder's staircase.
Blivet figure An 'impossible' figure in which three apparently solid tubes are attached at one end of a rectangular base which projects only two bars (Fig. F4). See Necker cube; Schroeder's staircase; Rubin's vase.
fortification figure See scintillating scotoma.
Kanizsa figure An ambiguous figure in which the illusory contour of a square (or triangle) appears in the middle of four (or three) truncated solid squares (or circles). It is an illustration of the perceptual ability to make sense of an incomplete figure by creating a 'whole' image from the separate elements (Gestalt organization). Some people cannot perceive the contour. Syn. Kanizsa square (Fig. F5).reversible f. See ambiguous figure.
Fig. F4 Blivet figureenlarge picture
Fig. F4 Blivet figure
Fig. F5 Kanisza figureenlarge picture
Fig. F5 Kanisza figure
References in periodicals archive ?
The Groundwork Street Eats project |across the Tees Valley and Durham areas teaches people how to grow their own fruit, vegetables and herbs.
Groundwork will be holding a series of celebratory events, which it will announce during the coming weeks.
Current companies active with Groundwork Labs include Greenshoot (cloud-based recovery), HealthyBytes (nutrition software), AnyCloud (consumer content aggregator), EyeScribes (automated clinical documentation) and Cellbreaker (cell phone contracts tool).
Lorna Crawshaw, Employment Manager at Groundwork North Wales, said: "The Jobs Growth Wales programme has been transforming the lives of young people, delivering the skills and confidence they need to secure employment.
But through its experience in doing this sort of work the organisation acquired a wider focus, including things such as community empowerment and skills, as Groundwork Wales executive director Ian Mcintosh explained.
Groundwork helps people across Wales create better neighbourhoods, build skills and job prospects and live and work in a greener way for the future.
With respect to method, Frederick Rauscher employs an unusual but fruitful approach in 'Freedom and Reason in Groundwork III' (Chapter 11), analyzing Section III in reverse--moving from end to beginning--in order to ascertain what Kant aims to accomplish, how he attempts to do so, and the extent to which he takes himself to succeed.
Groundwork looks forward to working with partners to help new schemes become a reality.
Joint working between the community, nearby schools, Medway Council and Groundwork helped inform the design of the new play area.
The company has also introduced GroundWork Factory, which will use GroundWork Monitor Professional's IT Management SOA to provide services for service level management, along with a repository of profiles, reports, dashboards and integration best practices.
Celebrity gardener Tommy Walsh of BBC's Ground Force joined Sir Albert Bore and Groundwork chief executive Tony Hawkhead to give a brief speech of his personal support for the charity.
The Coal Industry Welfare Organisation, the National Youth Theatre and Groundwork had to explain how they would spend it to voters, with 20,000 taking part.