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Ed Salau attempts to reach the summit of Mt. Rainier a few years after his leg was amputated at, and then above, the knee.
Salau uses his prosthetic leg to his advantage in Iraq in 2009.
Tianhong Dai at work in his lab testing UV-C light on mice.
The cell inactivation curve in the image shows that UV-C is highly bactericidal, meaning capable of killing bacteria.
Orthopedic surgery Profesesor Christopher T. Born hopes to infuse metal implants like this one in a patient's femur with drug-like characteristics that fight infections.
Notch molecules slow stem cell growth, enabling scientists to use them as building blocks to rebuild bone, cartilage, or tissue.
Battlefield wounds can be especially messy, with multiple fractures and drug-resistant bacteria.