Level III-Retrospective comparative study.

No abstract

The effect of pulsed currents on magnetization reversal were studied on single ferromagnetic nanowires of diameter about 80 nm and 6000 nm length. The magnetization reversal in these wires occurs with a jump of the magnetization at the switching field Hsw, which corresponds to unstable states of the magnetization. A pulsed current of about 10 7 A/cm 2 was injected at different values of the applied field close to Hsw. The injected current triggered the magnetization reversal at a value of the applied field distant from the switching field by as much as 20%. This effect of current-induced magnetization reversal is interpreted in terms of the action of the spin-polarized conduction electrons on the magnetization.

The Boston brace is an effective means of controlling curve progression in patients with adolescent idiopathic scoliosis when worn for more than twelve hours per day.

Level III-systematic review of level III/IV studies.