Word: proved
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Dates: during 1970-1979
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...professor Bennie R. Ware, associate professor of Chemistry and Veronica Vaida, assistant professor of Chemistry, rightly point out that the high-dose NCI animal study does not conclusively prove that low levels of EDB can cause cancer in humans. But the scientific community is currently debating he validity of extrapolating animal carcinogencity data to humans. This debate is far from resolved, and many scientists feel that the discovery of potent cancer-causing ability in animals must be taken as strong presumptive evidence for a human cancer threat. That's the reason why NCI did its animal study in the first...
...peace that will, among other things, provide autonomy for the Palestinians of the occupied West Bank and Gaza Strip. In the aftermath of the recent Arab summit conference in Baghdad, which condemned the Sadat peace initiative and the Camp David accords, the Egyptians are more determined than ever to prove to their Arab brethren that they are not selling out the cause by making a separate peace with the Israelis...
...that the Peking leadership has set for China are truly herculean-perhaps too much so for a country that is still recovering from the shocks and turmoils of Mao's last years. Thus many Sinologists wonder whether the ambitions of Teng and his pragmatic followers may not eventually prove to be as chimerical as those of Mao's 1958 Great Leap Forward, when peasants were urged to smelt iron and steel in backyard furnaces. Among the problems that modernization faces...
...students remains very low. Of the 5.7 million university applicants judged qualified to take the entrance tests last year, only 278,000 were admitted. At the same time, many teachers who were persecuted by the ferocious Red Guards in 1966 are understandably hesitant to cooperate in what may prove to be ephemeral new policies...
...become the fastest growing area of U.S. retailing, and they now account for fully 18% of all the general merchandise sold. Some experts believe that that percentage will grow much more. Maxwell Sroge, a Chicago-based mail-order consultant, goes so far as to assert that catalogue sales may prove to be the biggest revolution in shopping ever. Says he: "If you have insomnia, you can shop at four in the morning. It's a store that never closes...