A positioning system, apparatus and method include a transmitter (2), a receiver (4) and a plurality of reflectors (6). A signal is transmitted from transmitter to receiver both directly and via the reflectors (6). A location server (8) calculates the unknown position of the transmitter or receiver by identifying signal components (40) with reflectors (6).

 
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> Diagnosis and classification of disease and disability using low frequency magnetic field designed pulses (Cnps)

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