"Darker material is older, and these patches, which look like spilled milk, are whiter – so the material there is younger, less weathered, because it's shielded from the solar bombardment," says Bamford.
The fact that the caretaker Egyptian government had not requested the move prompted opposition members to express fears that it was shielding Mr. Mubarak, a former Air Force chief, and his relatives.
Apparently, the curing compound will initially inhibit the photocatalytic reaction, most likely because it is shielding off the active components from the pollutants in the air.
The only known exception is the abundant 7SL RNA that is part of the signal recognition particle, but its 5'end is likely inaccessible as it is shielded by the p9/14 protein subunit [23].
Here, a pathogen spends most of its life-cycle inside host cells, where it is shielded from direct contact with immune cells, antibodies and complement.
Then, when those investments turn a profit, some of it is shielded from tax authorities in California by virtue of Braeburn's Nevada address.
It is shielded from the council and entirely hidden from public gaze.
Though Craigslist has faced an intensifying public relations crisis, it is shielded from prosecution by a federal law that protects internet providers from the actions of their users.
Röntgen uncovered a startling effect namely, that a screen coated with a fluorescent material placed outside a discharge tube would glow even when it was shielded from the direct visible and ultraviolet light of the gaseous discharge.
The ion is trapped by lasers and held perfectly centered in a small vacuum, where it is shielded from magnetic fields and cooled to a fraction of a degree above absolute zero.
