One disadvantage of this method relates to its use of more complex culture methods that must remain aseptic, much as tissue culture systems require.
The C.I.A. claims that much of the Iraq report is about intelligence sources and methods that must remain classified.
Our understanding of the distinction between arithmetic truths and falsehoods is just as clear as our understanding of the simple recursive definition of truth in arithmetic, though any method for applying the distinction must remain forever out of our reach.
Because the unusual and unexpected can be rapidly identified, electron microscopy must remain a frontline method for rapid diagnostic virology, investigation of potential bioterrorist events, and investigation of new and unusual cases of suspected infectious origin.
However, this must remain tentative, because here we have no independent method to estimate the correction parameters.
The main question connected with this method is the stability;i.e.,the cumulative error in the solution must remain bounded at all time.
It must remain unpredictable.
"We must remain unbiased.
The skyscrapers, therefore, must remain.
