Medical imaging has enabled major improvements in the medical care of the patient. However, some of these tests have the disadvantage of using ionizing radiatio
The mechanism by which chromosomes establish and maintain a dynamic coupling to microtubules for force generation during the complex motions of mitosis remains
We study the Brownian ratchet conditions starting with Feynman’s proposal. We show that this proposal is incomplete, and is in fact non-workable. We give the c