[1] The ionospheric heating facility of the High Frequency Active Auroral Research Program (HAARP) has been used extensively in the last 3 years for injection of ELF/VLF waves into the magnetosphere via modulated heating of the overhead auroral electrojet currents. Of particular interest are waves that are observed to be nonlinearly amplified after interaction with hot plasma electrons in the E...

Methods: In 25 healthy volunteers (f= 12. m = 13. age 40 * 12 yrs.) we studied the influence of selective and unselective blockade of the autonomic nervous system on heart rate (HR) and HR variability (HRV). Data were recorded after an interval for rest lasting 20 min. and cardiovascular variables were observed to be stable. The examinations were performed in supine position, at constant room t...

OBJECTIVES To determine the relationship between obesity and cardiac autonomic nerve activity in healthy children. METHODS 16 healthy male children comprising of 9 nonobese and 7 obese subjects (body mass index > 19.1 kg/m(2)) aged 8-9 years were selected. Electrocardiograms were measured for 10 min. under controlled ventilation (0.25 Hz) in the supine position. Consecutive 256-second RR inte...

Due to the characteristics of inductance parameter mismatch and back electromotive force harmonics caused by novel leakage flux branches other non-ideal factors for variable-leakage-flux permanent magnet (VLF-PM) motor, its control system suffers from a deteriorated performance rotor position estimation. To overcome problems mentioned above, an adaptive tracking estimator is proposed in this pa...

BACKGROUND/AIMS Heart rate variability (HRV) has been linked to mortality in maintenance hemodialysis (HD) patients, but it is less clear whether HRV is associated with major adverse cardiovascular events (MACEs) and hospitalization. METHODS This study enrolled 179 maintenance HD patients. HRV was measured to assess its prognostic significance in relation to MACEs and hospitalization. RESUL...

In the northern part of Sumatra Island, Indonesia, Great Sumatran Fault, which can cause an earthquake, was divided into two segments: Aceh and Seulimeum. An effort to reduce risk is mapping fault area, especially in region that does not clearly show sign on surface, e.g., Lamtamot Indonesia. Electrical resistivity widely used study shallow structures, but method requires more time when applied...

Near-infrared spectroscopy (NIRS) is a noninvasive system for the real-time monitoring of the concentration of oxygenated (O2Hb) and reduced (HHb) hemoglobin in the brain cortex. O2Hb and HHb concentrations vary in response to cerebral autoregulation. Sixty-eight women (14 migraineurs without aura, 49 migraineurs with aura, and 5 controls) performed breathholding and hyperventilation during NIR...

Recent reports suggest the presence of a rare fracture type for which reduction and fixation cannot be achieved with volar locking plate (VLP). In particular, it is difficult to achieve reduction and fixation with volar lunate facet (VLF) fragments present on the volar ulnar aspect of the lunate facet, because of the anatomical structure and biomechanics in this region. Herein, we report two ch...

[1] This paper reports multiplatform observations of leader radiation preceding initial cloud-to-ground lightning return strokes by <6 ms. Specifically, we present multistation ground-based LF/VLF recordings of events with large-amplitude leader activity (comparable in amplitude to the return stroke amplitude). The events were selected for their coincidence with VHF observations by the FORTE sa...