The figure below shows a schematic of the basic steps involved. Actual details are available in reference 1 above. A. The time series of a TDI variable (duration 1 year) is split into ∆ sec long segments (overlapping is optional). B. The FFT of each segment is arranged on a cone in a three dimensional space. This is the space of wave vectors corresponding to a particular choice of coordinates f...

We studied the effects of varying delay interval on the accuracy and velocity of saccades to the remembered locations of visual targets. Remembered saccades were less accurate than control saccades. Both systematic and variable errors contributed to the loss of accuracy. Systematic errors were similar in size for delay intervals ranging from 400 msec to 5.6 sec, but variable errors increased mo...

We propose a methodology to infer edge-to-edge achieved transfer throughput using link utilization counts. Our method treats variations in the link utilization time-series as possible transfer starting or ending events. Iteratively following these variations to the neighboring routers, we then identify the path the transfer traversed through the monitored network. Our evaluation shows that this...

Functional imaging and lesion studies in humans and animals suggest that the basal ganglia are crucial for temporal information processing. To elucidate neuronal mechanisms of interval timing in the basal ganglia, we recorded single-unit activity from the striatum of two monkeys while they performed a visual duration discrimination task. In the task, blue and red cues of different durations (0....

We examined the effects of interstimulus interval (ISI) and orientation changes on the haptic recognition of novel objects, using a sequential shape-matching task. The stimuli consisted of 36 wedge-shaped plastic objects that varied along two shape dimensions (hole/bump and dip/ridge). Two objects were presented at either the same orientation or a different orientation, separated by either a sh...

A phase conjugation array (time-reversal mirror) time reverses the incident signal and precisely returns it to its original source location. A high frequency (~3.5 kHz) phase conjugation array (HFPCA) has been designed, fabricated, and deployed at sea in two experiments (July 1999 and May/June 2000) conducted jointly with the NATO SACLANT Undersea Research Centre. The HFPCA consists of 29 sourc...

Forty-five patients with chronic obstructive pulmonary disease were studied to compare the acute effects of ipratropium bromide (60 µg), salbutamol (300 µg) and placebo (3 puffs) on the forced expiratory volume in 1 sec (FEV 1) and forced vital capacity (PVC). Ipratropium bromide produced a significantly greater improvement than salbutamol in both FEV1 and FVC at 15,60 and 180 minutes afte...