vacuum

"Abolishing PCCs now, without any consultation, as policing faces a crisis of public trust and confidence... risks creating a dangerous accountability vacuum," she said.

The withdrawal of French troops in the wake of the coup has left a security vacuum exploited by the jihadists which the junta's new security partners -- including Russia -- have failed to fill, Lyammouri said.

The absence of event-driven trading creates a news vacuum and tends to make many investors forget that stocks often decline after strong rallies.

In the power vacuum left by these changes, a handful of families swooped in, securing military and political power.

According to the researchers, these capabilities could be especially valuable for use in the vacuum of space or in the cryogenic fuel systems of rockets.