41.   It has produced no effect . . . .

42.   It is important to remember, for example, that jobs created in clean energy technologies produce multiplier effects throughout the economy, too.

43.   Its effects are produced by detailed drawing rather than the gradations of tone Whistler used in many of his Venice views.

44.   Its patient, precise camera movements and the painterly clarity of its visual composition produce an effect of serene, enveloping warmth.

45.   Ketamine, which is chemically akin to PCP, produces effects ranging from dream-like states to delirium and hallucinations.

46.   Most Latinas have dark eyes, and playing up the eyes produces incredible effects, Almonte said, because they are our most expressive feature.

47.   Over the last half century, researchers have studied that and other chance findings, divining how the drugs interacted with the brain to produce their effects.

48.   Rather, they may produce different effects in different parts of the world, perhaps increasing or decreasing temperatures or rainfall patterns.

49.   Scientists debate what levels produce the effects.

50.   Scientists had been producing such effects for years.