Ara Nazarian and Ken Rodriguez met in the early 1990s in a lab on Brookline Avenue in Boston. Ara, a biomedical engineer at Beth Israel Deaconess Medical Center, was working there, and Ken, a orthopedic surgeon, was a medical student. Over the years, they’ve collaborated on various projects. They’ve also shared an interest in skiing. Rodriguez skis conservatively: “I’m a trauma surgeon. I know how badly you can get hurt,” he said. Nazarian is “quite the opposite” type of skie