Although ATP has been shown to be an energy source for sodium extrusion in injected squid axons (CaldweU, Hodgkin, Keynes, and Shaw, 1960) as well as dialyzed axons (Brinley and Mullins, 1967; Mullins and Brinley, 1967), the ability of other high-energy phosphate compounds to support sodium extrusion has not been thoroughly studied. An internal dialysis technique has been used for such a study ...

This contribution is focused on the Mullins effect in polyethylene. An ultra-low-density polyethylene with 0.15 crystal content, a low-density polyethylene with 0.3 crystal content and a high-density polyethylene with 0.72 crystal content are subjected to cyclic stretching over a large strain range. Experimental observations are first reported to examine how the crystal content influences the M...

The simulation of rubber-like material behaviour by means of the finite element method has been described in this study. Proper material models were selected for the numerical description of static hyper-elasticity. The combinations of a continuum damage mechanics concept and a pseudo-elastic concept with Gao’s elastic law were used to simulate the ideal Mullins effect. Furthermore, a specific ...

A recent study demonstrated that a particular genetic susceptibility (LOC387715), combined with smoking, confers a significantly higher risk of AMD than either factor alone (Schmidt et al 2006). This is consistent with reports from family aggregation studies, which suggest that a first-degree relative of an individual with AMD is five times more likely to develop AMD than a family member of som...

JCB • VOLUME 209 • NUMBER 1 • 2015 4 Dyche Mullins morphed from an electrical engineer to a cell biologist during his doctoral work at the University of Kentucky. Attending the intense Marine Biological Laboratory (MBL) Physiology Course assured his transformation and earned him a postdoctoral spot with the course director at the time, Tom Pollard. During his time in Pollard’s lab, fi rst at Jo...

Dear Sir: In his recent letter to you, Dr. Mullins suggests that the evidence on squid axon membrane conductances said to be compatible with the notion of two independent ionic conductances for Na and K "is not at present compelling." We certainly agree with this and furthermore would point out that we do not yet see any experiment which could help us choose definitively between a single channe...

Mullins, In a series of papers, developed a surface dynamics for phase interfaces whose evolution 1s controlled by mass diffusion within the interface. It Is our purpose here to embed Mullins's theory within a general framework based on balance laws for mass and capillary forces In conjunction with a version of the second lav, appropriate to a purely mechanical theory, which asserts that the ra...