For decades, scientists across the globe have investigated methods to accurately measure drug permeability across the blood-brain barrier, a compact layer of cells that protect the brain from ...

In chordates, intercellular communication based on gap junctions relies on channels formed by protein subunits of the connexin family, whose members are named according to their molecular mass 1.

From a consideration of the methods heretofore used in the study of permeability it would appear that the steps most essential to further progress toward the solution of the problem are: (1) a ...

Abstract The gas flow mechanisms in source rocks of coal measures under the effects of the pore structures and permeability characteristics were investigated by field-emission scanning electron ...