Prusiner has yet to show, for instance, that a protein sans nucleic acid can be infectious, and consequently, he has invoked the potential involvement of yet another agent in the disease process (although he insists it has no nucleic acid and calls it Protein X).
Prusiner is trying to show that protein without nucleic acid can be infectious.
Prusiner is trying to show that protein without nucleic acid is not infectious.
A woman has a hat.
Girl sitting in a coffee shop.
Some resource economists consider residential visibility studies to be less reliable.
The woman is inside using the escalator.
A male guitarist wearing a baseball cap and playing on a black acoustic guitar.
I actually met Collin Powell when I was serving in the Air Force.