This allowed performing sinusoidal motions of the aluminium rod in bowl of sand at a depth of 100 mm with an amplitude of about 60 mm and defined frequencies ranging from 0.5 Hz to 6 Hz.
The study design involved overnight exposure to RF-EMR at a defined frequency (1.8 GHz), over a range of SAR values that both covered the emission characteristics of mobile phones and generated sufficient dose-response data to shed light on the underlying pathophysiological mechanisms.
ALFF is an index that reflects the intensity of regional spontaneous brain activity by calculating the voxel-wise magnitude within a defined low-frequency range).
In both cases it is shown that, for different Fibonacci sequences, the number of stop/pass bands within a defined range of frequencies changes and follows the Fibonacci recursion rule showing a self-similar pattern.
In the second step, a clock vector that defines the frequency range and the amplitudes of the core circadian clock genes is identified based on the spectra of core circadian clock genes.
For the statistical parametric sensor space maps the time-frequency plots at each sensor, for each subject, were averaged across two frequency ranges; an alpha frequency range, defined here as 7 12 Hz, and a beta frequency range, defined here as 15 30 Hz.
The main results also define the frequency range on which cycles of the second kind of the system cannot exist.
A high-order linear phase finite impulse response filter (Matlab®; The MathWorks, Inc., Natick, MA) was then applied to define the frequency range of interest and remove direct current and power line components from the signal (band pass: 0.5 70 Hz, notch: 50 Hz).
Tuning width was defined as the frequency range of a contiguous set in which each stimulus frequency elicits a response at least 1 SD above baseline, consistent with our earlier work that compared tuning between brain areas and across species [1], [13].
