But Ayatollah Khamenei, without referring to Rafsanjani or the reformist camp by name, insisted that it is not permissible to level criticism at the system, and that those who do so "will be hated by the people for causing strife."

VOA: standard.2009.07.20

Simplifications allow a permissible level of error to enter into the model in the hopes of making the it simple enough to run quickly, the concept understandable, and the results readable.

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In two months it had reached almost 33 millisieverts, or a third the level normally permissible for those working on a nuclear accident in a year.

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