51.   Nicely acted by Shirley MacLaine and Debra Winger.

52.   Once again, the Americans had taken a leading role in the negotiations because Europeans, acting by themselves, could not do it on their own.

53.   President Tudjman cannot act by the rationale of racial supremacy at home and pose as a sophisticated democrat to the rest of Europe.

54.   Radon acts by emitting tissue-damaging particles as it decays.

55.   Simpson said he believed that public universities had been forced to act by political attacks.

56.   Since then, Arafat has essentially acted by inaction.

57.   Tamoxifen acts by blocking estrogen receptors on tumor surfaces, thus preventing hormones from latching on and signaling the tumor to grow.

58.   Tea chemicals are believed to act by preventing damage to DNA that could result in a loss of control over cell growth.

59.   That fine Irish actor Donal Donnelly is full of energy as the scheming Johnny, but he often seems to be acting by himself.

60.   The Assembly is expected to act by tomorrow and the governor could sign the legislation by the end of the week.