Kenneth W. Parker

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We studied the effects of chewing nicotine gum on tic frequency and severity in 10 patients with Tourette's disorder (TD) on haloperidol, versus 9 untreated TD patients; placebo gum was administered to 5 of these untreated patients. Videotapes of patients during a 2-hr period of 30 min baseline, 30 min gum chewing, and two 30-min postgum-chewing periods(More)
In an open, nonblind study, 10 patients with Tourette's disorder who were being treated with haloperidol were videotaped before, while, and after chewing nicotine gum. The frequency of tics was reduced significantly during the 30-minute gum-chewing period and during the 1 hour after gum chewing. Nicotine appears to potentiate haloperidol effects in patients(More)
This paper describes a robust detection algorithm implemented on a network of acoustic sensors. The sensors are severely constrained in both power and computational performance. A variety of techniques are employed to extract maximum detection range while minimizing false alarm rates under these constraints. These include automatic gain control, background(More)
In conventional science and engineering degree programs , computation is commonly treated as a narrow technical tool to be studied and applied in isolation from the traditional topics of the discipline. Students are typically required to take a programming course (usually in Fortran, C, or Pascal) to learn how to program, and perhaps a numerical analysis(More)
Using phase information from medium bandwidth Doppler Radars, it is possible to obtain motion information corresponding to changes in target range on the order of a wavelength. Comparable range resolution from ranging radars would require much wider bandwidth. For long-range radars, the power consumption depends mostly on transmitted power levels and only(More)
Despite recent theory development, methods of calibration that accurately recover signals from biased sensor readings remain limited in their applicability. Acoustic sensors, for instance, which have been popular in low power wireless sensor networks, are difficult to calibrate in this manner, given their significant hardware variability, large dynamic(More)
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