51.   The violence level increased in late afternoon, when they were told he was not in his offices.

52.   Very high hormone levels also can increase the risk of heart attack and stroke, FDA said.

53.   And it is only when the level of firing increases or appears closer that people hasten their pace.

54.   Radioactivity levels increased near two air exhaust pipes at the facility immediately after the fire indicating that nuclear radiation leaked outside, Kyodo also said, quoting plant officials.