Example sentences of "[noun] theory be [conj] [pron] [vb -s] " in BNC.

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1 The importance of skill theory is that it relates human performance to systems concepts and to individual differences .
2 A second problem with compensation theory is that it ignores the period during which any changes are taking place — the transitional period .
3 The problem with disengagement theory is that it fails to ask whether such observable characteristics of older people are attributable , at least in part , to cultural expectations .
4 The importance of the concession theory is that it establishes a theoretical framework sympathetic to state intervention ; the company is a creature of the state , existing to promote the public welfare , and as such the state has the right to interfere in its internal affairs and need not confine itself to external , general-law regulation .
5 The one thing that everyone knows about quantum theory is that it contains Heisenberg 's uncertainty principle acting as a limit upon our powers of exact knowledge .
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