He applauded the safety improvements, but noted that "bravery is still necessary for a racing driver".
Furthermore, if later editions contain authorial revisions, the first is still necessary for identifying and analyzing changes.
As the Doha malaise has shown, active American leadership, although no longer sufficient, is still necessary for multilateral progress.
In the past, arcane text-based commands were needed to run the operating system, and those kinds of commands are still necessary for some things.
But a full Windows computer is still necessary for most people, so the concept of a PC that can double as a makeshift tablet for media consumption is appealing.
Nyman, who celebrated his 70th birthday last month, said he hoped it would make "a small but significant" contribution to the healing process still necessary for the families of those who died.
Even the staunchest critics of college concede that a diploma is still necessary for many professions — law and medicine, clearly, and in many cases, for a Fortune 500 executive, too.
Automatic colour scanning and discrimination is operational but has not become widely used; it is still necessary for an operator to trace the various features on the manuscript to code them.
An independent field measurement is thus still necessary for the analysis of spatial coherence.
Nevertheless, the use of reinforcement is still necessary for structural applications [1].
However, specific mechanical properties and microstructural characterization are still necessary for this purpose.
