Furthermore, after the cathode has cooled, the accelerator may repeatedly be opened to atmosphere, re-evacuated and the cathode returned to operating temperature without loss of emission and without additional precautions or special restrictions.
What followed, officials and witnesses said, was a tense standoff in which the troops repeatedly opened fire to push protesters back beyond the perimeter fences.
We find that the BBB can be safely, temporarily, and repeatedly opened in an amyloid-rich brain region with a high degree of anatomic specificity.
Arab satellite television channels broadcast images of the violence, repeatedly showing morgue drawers opened to display the bodies.
Ventilation can reopen collapsed alveoli, but it is harmful for them to be repeatedly opened, and positive pressure ventilation can also damage the lung by overinflating it.
Mr. Assad's speech on Wednesday was scheduled to try to calm tensions after government forces repeatedly opened fire on demonstrators, killing dozens of people.
They typically held onto hosts for a period of time (mean bout length 17 s, range 1 249 s; n = 60 bouts) during which they repeatedly opened and closed their mandibles, and often shook the host chick, either from side to side or up and down by rocking on their hindlegs (figure 2 a– c and electronic supplementary material, videos S1 S4).
He repeatedly opened and closed doors, fixated on his shadow and detached from those around him.
"His brilliant intuitions have repeatedly opened new fields of mathematical inquiry".
McGuire's stomach rose and fell several times as he repeatedly opened and shut his mouth".
The sources said Afghan and Soviet security forces repeatedly opened fire after the explosions began and swept surrounding hills with searchlights.
