Word: occured
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Dates: during 1990-1999
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Despite the doomsday alarms being sounded by environmentalists, genetic engineers at Monsanto argue that there is no real risk of pollen from Terminator plants causing widespread sterilization in other plants--and they're probably right. Gene drift does occur, but nature doesn't make it easy. Many crops, like rice, are mostly self-pollinated. As for crops that are pollinated by wind or insects, precautions like planting border fields to keep crops isolated help confine genes. What's more, crops tend to mature at the same time--sending out a great puff of pollen all at once--while wild plants...
...understand the community around him. When gang leaders commandeered swaths of Bridgeport and other cities in the early 1990s, the never easy task of finding witnesses became all but impossible. A 1996 federal study found that law officers in eight urban areas reported that violent acts of witness intimidation "occur on a daily or weekly basis." In Los Angeles a stunning 1,000 homicides in the first half of the decade went unsolved because no one stepped forward. At B.J.'s funeral last week, a family friend made the point without numbers: "Some of us men, grown...
True, the fact that it was the lead story helped make such shootings more likely in the future. And two other school rampages--in Jonesboro, Ark., and Springfield, Ore.--did occur. Even so, the chances of such a tragedy visiting your neighborhood remain minuscule. You'll know it's time to worry when your newspaper stops covering school massacres that happen outside your region...
...Duke of Wellington is said to have observed, "The battle of Waterloo was won on the playing fields of Eton." This statement reflects a recognition that teaching and learning can occur in many places and that work need not be contrasted with play. The ultimate test is whether youngsters grow up to be decent human beings and whether, when it is their turn, they can successfully transmit values and practices to their offspring. Recent talk that parents do not matter is highly misleading. We do matter, especially when it comes to inculcating discipline, respect, responsibility, core values. Perhaps we cannot...
Moreover, there is a lot we do not know about the effects of cloning, especially in terms of aging. As we grow older, changes occur in our cells that reduce the number of times they can reproduce. This clock of age is reset by normal reproduction during the production of sperm and eggs; that is why children of each new generation have a full life span. It is not yet known whether aging is reversed during cloning or if the clone's natural life is shortened by the years its parent has already lived. Then there is the problem...