Finally, a very recent proposal suggests that traditional variants of the endosymbiont theory are insufficiently powerful to explain the origin of the eukaryotic nucleus.

The train proceeded to roll back, due to an insufficiently powerful launch, combined with an uneven distribution of weight on the train in April 2006.

When this proved insufficiently powerful, Philander Roots built a more efficient "water motor" to exploit the power source.

The tests reported in table 3.1 may be insufficiently powerful to allow rejection.

The one that, evidently, proved insufficiently powerful.

Its 25-pound shell proved insufficiently powerful to make it much of an improvement on the 12-pounder.

But his voice, which has seemed ample enough in Italian parts, proved insufficiently powerful to command the suffering king's monologues.

This proved insufficiently powerful to get the craft airborne.

C5 locomotives soon proved to be insufficiently powerful for the gradients of the Tampere and Vaasa railway line.

The authority of the ailerons was deemed exceptional but the rudder was insufficiently powerful at lower speeds.