[Scott Harden] has been working through a design for a variable inductor to use as a PTO, or permeability tuned oscillator. What you see above is the most recent fruit of these efforts. The ...

THE frequent assumption that bacterial spores are impermeable and thereby metabolically dormant, unstainable and resistant to environmental stress has not heretofore been tested by experiment.

Again, the cell can control which pumps are produced and under which circumstances. The combination of reduced entry and increased efflux is referred to as “reduced permeability” and is usually caused ...

It is particularly interesting for scientists to be able to control the permeability of graphene for different substances. "So-called defects can be created in the carbon lattice of graphene.