41.   In studying the problem, mathematicians devised a method of analysis called circle maps.

42.   In typical male fashion, I have been studying this problem for some time.

43.   It also will study the problem of pathological gambling and the prospect of gambling on the Internet.

44.   It forces the state to study the problem of inequalities in educational opportunities and lack of diversity between districts.

45.   It gave money, space and support to students like Reilly, who went from studying urban problems at Manhattan College or Fordham University to doing something about them.

46.   It is an impressive issue, including comments by seven people who have studied the problem.

47.   It would also study the problem of pathological gambling and the prospect of gambling on the Internet.

48.   It recently commissioned a psychology professor to study the problem.

49.   Its relationship is more indirect, in that certain weapon-physics problems could be studied experimentally.

50.   James Hart, a spokesman for Northrop Grumman, said the company was studying the problem.