Cogging effect is a serious disadvantage of the permanent magnetic synchronous motor (PMSM), and cogging force is a positiondependent periodic disturbance. In our previous work [1], a dual highorder periodic adaptive learning compensation (DHO-PALC) method for state-dependent periodic disturbance was presented, where the long term stability issue was not addressed. Due to the impact of the high...

OBJECTIVES The objective of this study was to characterize temporal changes in defibrillation thresholds (DFTs) after implantation with an active pectoral, dual-coil transvenous lead system. BACKGROUND Ventricular DFTs rise over time when monophasic waveforms are used with non-thoracotomy lead systems. This effect is attenuated when biphasic waveforms are used with transvenous lead systems; h...

Dual rates of pure time preference, recently introduced for analysing long-term environmental problems, are reinterpreted as shifts in preferences. 2002 Elsevier Science B.V. All rights reserved.

This article is the first to describe Department of Veterans Affairs (VA) patients' use of Medicaid at a national level. We obtained 1999 national VA enrollment and utilization data, Centers for Medicare and Medicaid Services enrollment and claims, and Medicare information from the VA Information Resource Center. The research team created files for program characteristics and described the VA-M...

BACKGROUND For single gait tasks, associations have been reported between gait speed and cognitive domains. However, few studies have evaluated if this association is altered in dual gait tasks given gait speed changes with complexity and nature of task. We evaluated relative contributions of specific elements of cognitive function (including sustained attention and processing speed) to dual ta...

Although the chances of predicting a preventable fracture by bone densitometry may be small, it is also important that two thirds of patients can be reassured that fracture is less likely and therefore long term treatment is not needed. That there is overuse, overdiagnosis, and overtreatment for osteoporosis is due not to bone densitometry or to epidemiological reports but to various factors, i...

Bacterial transformation, the transfer of genetic markers by DXA, provides a mechanism by which closely linked genetic loci may be ordered in a segmental map. Since a unit of DNA transferred from a donor bact#erium to the recipient) cell represents only a small fragment of the entire genome,’ it is not possible to arrange many randomly distributed loci in any single transfer experiment. By the ...