Often called runner's knee, chondromalacia patella is a common condition causing pain in the kneecap. The patella is covered with a layer of smooth cartilage, which normally glides across the knee when the joint is bent.ymptoms of chondromalacia include knee tenderness and pain that increases after sitting for a prolonged period of time, using stairs or getting out of a chair. There may also be a grating or grinding sensation when the knee is straightened.
Fluxus is an international avant-garde group or collective that was founded and flourished in the1960s but still continues today.
Fluxus emerged in New York led by artist George Maciunas, and there were also Fluxus groups in Europe and Japan. The Happenings artists were not part of an organized group with a leader like the Fluxus group and the term Happenings is not the name of a movement but the name of certain performance pieces.