Twenty Years of Toxicology
نویسندگان
چکیده
منابع مشابه
20 years of toxicology.
With over 80,000 chemicals being used in commerce worldwide, it is important to identify the human health effects of these chemicals and the levels of exposure at which they are harmful to humans. In order to address this need, the National Toxicology Program (NTP) was established in 1978; since then, the NTP has become the world's leader in designing, conducting, and interpreting various types...
متن کاملTwenty years of technology.
In looking back at previous issues of RNA and my own eight RNA papers, what strikes me, in addition to all the great science that’s been published in our society journal over the past 20 years, is the evolution (or more properly, revolution!) in the methods and technologies we use. Equally striking has been the exponential increase in the amount of data in each published paper. In two decades, ...
متن کاملTwenty years of marriages.
In 1994, a total of 159,959 marriages were performed in Canada, up only slightly from 159,316 the year before. This small increase had no effect on the crude marriage rate, which remained at 5.5 marriages per 1,000 population. Aside from a brief uptum in the late 1980s, Canada's marriage rate has fallen quite steadily since the early 1970s. The overall decline is also evident when rates are dis...
متن کاملTwenty Years of Reflections
As I was reflecting deeply in front of the statue of Bodhisattva of Gr~ and Wisdom in the University Muset~n, I was startled to see Jane. Having heard from Don that he had asked the old cats to reflect on the 20 years of ACL, Jane had decided that she should drop in on some of them to seek their advice concerning the future of ACL. I wish to thank Alice, the Cheshire Puss, and Lewis Carroll for...
متن کاملTwenty Years of KSHV
Twenty years ago, Kaposi's sarcoma (KS) was the oncologic counterpart to Winston Churchill's Russia: a riddle, wrapped in a mystery, inside an enigma. First described by Moritz Kaposi in 1872, who reported it to be an aggressive skin tumor, KS became known over the next century as a slow-growing tumor of elderly men-in fact, most KS patients were expected to die with the tumor rather than from ...
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ژورنال
عنوان ژورنال: Environmental Health Perspectives
سال: 1998
ISSN: 0091-6765
DOI: 10.2307/3434084