A dual dipole electric field probe has been used to measure surface electric fields in vivo on a human subject over a frequency range of 0.1-800 Hz. The low-frequency electric fields were induced by natural body movements such as walking and turning in the fringe magnetic fields of a 3 T magnetic resonance whole-body scanner. The rate-of-change of magnetic field (dB/dt) was also recorded simult...

A 49 year old male patient was admitted with a seven day history of fever and incontinence of fluid faeces and painful swelling of the left thigh. He had schizophrenia and had been on stelazine for 10 years. During the present illness he had received treatment for malaria and typhoid. He was referred to Aga Khan University Hospital with a possible diagnosis of femoral vein thrombosis. On examin...

Marchand and Duffy tested thin-walled steel tubes in a split Hopkinson torsion bar at a nominal strain-rate of approximately 1600/s and could not determine conclusively whether a shear band initiating at a point in the tube propagated around the circumference in one direction or in both directions. They estimated the speed of propagation to be 520 m/s in the former case and 260 m/s in the latte...