An analysis has been performed of the theories and postulates advanced by von Neumann, London and Bauer, and Wigner, concerning the role that consciousness might play in the collapse of the wave function, which has become known as the measurement problem.
giving out or weakness of the knees can have different causes. These can include problems outside the knee joint itself (weak muscles for example) or inside the knee (torn ligaments or cartilage). See an orthopaedic surgeon to address your individual problem.
Other causes of blood clots on the knee include: prolonged bed rest or long periods of sitting and lying down, leg paralysis any major surgery under general anesthesia (especially involving hips or legs), and trauma to the knee area from a blow or fall.