Departments should permit overtime work by non-exempt employees only when it is essential to the operation of the department.
As explained in Qualitex, supra, and Inwood, supra, a feature is also functional when it is essential to the use or purpose of the device or when it affects the cost or quality of the device.
That made sense in the Pleistocene Era, when it was essential to find, consume, and store calories for as long as possible, but it does not make sense in our essentially sedentary society.
In civil cases testimony would be required only when it was essential to resolve an issue of "substantial importance".
Every physician, and medical student, should be able to manage clinical decision-making under pressure of time when it is essential to save lives.
"I have problems with American Idol because I think that we live in a time when it is essential to connect with other people in a way of kindness," he began.
That said, there are occasions when it is essential to fake an orgasm like when a) love or intense "like" is involved (ew); or b) the guy is doing a seriously good job, and it's your purely non-physical disposition that's in the way of coital finality.
This is especially useful during the post-detection fine mapping phase to highlight primarily associated variants in diseases common in this population when it is essential to exclude secondary hitchhiking effects.
This is particularly relevant in the early stages of transplantation when it is essential to avoid elimination of the graft by NK cells while maintaining its anti-viral immune response function that commonly develops in transplanted patients.
However, these methods have not answered the question of which factors or features are more important for the determination of drug combinations, when it is essential to know which features and why they are able to distinguish good combinations from undesired ones.
While it is possible to view a total solar eclipse without protection during totality, only an experienced observer will know when to judge this moment accurately and when it is essential to immediately place the filter between your eyes and the eclipse again, before the Sun reappears.
