Punji Stick Wounds

Urology in Vietnam: Historical, Medical, and Surgical Considerations

The war in Vietnam presented unique problems in the management of casualties. The weapons involved included modern high-velocity automatic rifles, such as the AK-47 used by the Communists and the M16 employed by the US forces. They also included Claymore mines, which, for the most part, inflicted blast injuries and fragment wounds to the lower extremities, pelvis, and abdomen. These contrasted ...

Wounds.

A 23-year-old man living in Orange County, California who was involved in a motor vehicle accident suffered a closed both-bone forearm fracture that was treated with open reduction and internal fixation. The patient then developed wound necrosis and abscesses that revealed a pure culture of non-toxigenic Vibrio cholerae. The wound required debridement and excision, which was followed by split-t...

Cocktail stick injuries--the dangers of half a stick.

Preventing needle-stick injury.

Stabilizing stick-slip friction.

Even the most regular stick-slip frictional sliding is always stochastic, with irregularity in both the intervals between slip events and the sizes of the associated stress drops. Applying small-amplitude oscillations to the shear force, we show, experimentally and theoretically, that the stick-slip periods synchronize. We further show that this phase locking is related to the inhibition of slo...