51.   Ann Buve of the Institute of Tropical Medicine in Antwerp, Belgium, studied two African cities with high HIV rates and two with low rates.

52.   Another factor was to try to offset the low rate of reimbursement from Medicare.

53.   As low rates filter through the economy, capital investment will slowly grow, he said.

54.   As low rates filter through the economy, capital investment will slowly grow.

55.   As U.S. delinquency rates rose in the last year, companies cut back on trying to attract more customers by offering cards with low introductory rates.

56.   At first, cells fire rhythmically at the extremely low rate of one to four cycles per second, Sejnowski said.

57.   At very low rates of unemployment, businesses can only expand and hire by offering workers higher and higher pay.

58.   Australia has been a big borrower of overseas funds, given the traditionally low rate of national savings.

59.   B.U., lured by relatively low borrowing rates, said it will use the proceeds to consolidate its debt of various rates and maturities.

60.   Bank and metal stocks are expected to benefit from low rates and sustained economic growth, as well.