Calazar explained, "It could have been a result of extreme genetic instabilities still inherent in the race.

During the period of extreme social instability immediately following the war, when there was some possibility of revolutionary developments in Britain, these concerns appeared relevant.

It will be interesting here to call a witness or so to the extreme instability of absolute negation.

South Vietnam entered a period of extreme political instability, as one military government toppled another in quick succession.

Also unusual on this day was the low wind shear and extreme instability.

The extreme instability in this area caused at least three more severe supercells in the region.

"The climate is getting warmer and the extreme instability is growing along with it."

They were published during an episode of extreme political and economic instability that hampered scientific communication.

The extreme political instability Egypt was witnessing at the time resulted in a military coup on 23 July 1952.

This is now a reality of global significance which, unfortunately, also involves areas of extreme political instability.