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absorbed dose

Overview page. Subjects: Chemistry.

(in radiation physics) a measure of the energy deposition produced by ionizing radiation in any (specified) medium as a result of ion‐pair formation. The CGS unit of absorbed...

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camerawork

Overview page. Subjects: Media Studies.

See also aperture; cinematography; crash zoom; cropping; exposure; gendered camerawork; headroom; objective camerawork; subjective camerawork.

1. The art,...

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colour timing

Overview page. Subjects: Media Studies.

A laboratory-based process that uses chemicals and exposure times to adjust the colour balance of motion picture films. Compare grading.

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effective frequency

Overview page. Subjects: Media Studies.

In advertising, the level of exposure of a target audience to a medium carrying the advertiser's message during a given period that is regarded as meeting a specified objective in relation...

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media priming

Overview page. Subjects: Media Studies.

A psychological phenomenon whereby media content is seen as providing a prior frame of reference (a prime) within which subsequent related content may be interpreted, as in theories of...

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optics

Overview page. Subjects: Chemistry.

The study of light and the phenomena associated with its generation, transmission, and detection. In a broader sense, optics includes all the phenomena associated with infrared and...

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photographic codes

Overview page. Subjects: Media Studies.

In semiotic discourse, the processes of transformation involved in the production of images with a camera. Supposedly, someone once handed the artist Picasso a photograph, asking, ‘Can't...

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roentgen

Overview page. Subjects: Chemistry.

The former unit of dose equivalent (see radiation units). It is named after the discoverer of X-rays, W. K. Roentgen (1845–1923).

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wearout

Overview page. Subjects: Media Studies.

The declining effectiveness of an advertisement or a campaign associated with increased exposure: a repetition effect that leads to consumer boredom or irritation. An issue of advertising...

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