J Hogge | PubMed Health

PubMed2000

Steady-state fully noninductive current driven by electron cyclotron waves in a magnetically confined plasma

A steady-state, fully noninductive plasma current has been sustained for the first time in a tokamak using electron cyclotron current drive only. In this discharge, 123 kA of current have been sustained for the entire gyrotron pulse duration of 2 s. Careful distribution across the plasma minor radius of the power deposited from three 0. 5-MW gyrotrons was essential for reaching steady-state conditions. With central current drive, up to 153 kA of current have been fully replaced transiently for 100 ms. The noninductive scenario is confirmed by the ability to recharge the Ohmic transformer. The dependence of the current drive efficiency on the minor radius is also demonstrated.

Journal Article↗

PubMed2000

The potential benefits of advanced therapeutic modalities in the treatment of diabetic foot wounds.

This article discusses the advantages and disadvantages of primary wound healing as compared with primary amputation in individuals with chronic diabetic foot wounds. The authors review the potential benefits of vascular surgical procedures and advanced dressings, including two of the most promising modalities in modern wound care: growth factors and bioengineered skin. In this era of cost-conscious health-care administration, it is incumbent on the practitioner to consider not only the basic science of wound care, but also the economic aspect of treatment rendered. These various interventions, dressings, growth factor delivery systems, and new modalities could significantly reduce healing time, thereby reducing the risk of infection, hospitalization, and amputation while improving quality of life. If so, they may be truly cost-effective.

Bandages↗