In addition to shear actuation, {HEAD ~ directional actuation} and damping may be effected using {TAIL ~ methods} or devices of the invention 
effected using
In addition to shear actuation , { HEAD ~ directional actuation } and damping may be effected using { TAIL ~ methods } or devices of the invention
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH