51.   That produces images on the computer, which are then transformed into a film that must be viewed with the glasses to produce the effect.

52.   The four spots manipulate still photographs to produce an effect similar to strobe lights, borrowing a technique used in performances by the Icelandic musicians known as GusGus.

53.   The researchers could not explain why androstenedione produced this effect.

54.   The three-way interaction produces an effect that neither words nor pictures could create on their own, she says.

55.   The violent collapse of such bubbles produces effects other than light.

56.   There was no indication that the violation had produced any effects outside the city itself.

57.   To produce that effect with the left hand while the right produces a singing, free-spirited melody requires a daunting measure of control.

58.   Too much vitamin A can produce toxic effects that range from itchy skin, blurred vision and irritability to neurological problems.

59.   Two physicists in Sweden have now theorized that the same strange effects might be produced in laboratories on Earth, though not with gravity.

60.   While cortocosteroids are effective in reducing inflammation, they can produce strong side effects, including depression, mood swings, and kidney problems.