Word: tumors
(lookup in dictionary)
(lookup stats)
Dates: during 1970-1979
Sort By: most recent first
(reverse)
Unable to reproduce themselves, viruses invade normal cells and use their hosts' chemical mechanisms to produce more viruses. Eventually, the infected cell ruptures, releasing the newly formed viruses to infect other cells. Dr. Howard Temin of the University of Wisconsin has shown that some tumor viruses behave differently. They reverse the normal order of genetic transmission, and with the aid of a recently discovered enzyme, use their RNA messenger molecules to produce DNA, the double-helix master molecule. In a way not yet understood, this triggers the cellular genetic machinery to order cell division, causing the cancerous growth that...
...well-known story that Anthony Burgess began writing in earnest in 1959, when a doctor in Malaya told him he had a brain tumor and barely a year to live. In order to leave his ailing wife some kind of security, he returned to England and wrote five novels in one year. There was no tumor, but even after he heard the good news, Burgess never stopped working-or moving around. Disgusted by high taxes and public indifference, he left London after his wife died, continued his hectic pace in Malta, Rome, and this year Princeton...
...will make technical papers and even newspaper stories about cancer experiments a lot more comprehensible. In the chapter entitled "A Geneticist's View of Cancer," Watson first discusses the specific changes cancerous cells undergo on infection, and then details the molecular mechanisms proposed for the transformation of cells by tumor viruses. If left at that, this chapter would be a valuable compilation of the present data on cancer induction, but Watson goes further. He discusses medical instances of cancer thought to be related to the tumor virus evidence and lists several interesting theories, one of which proposes a connection between...
...book tries to develop. How much of present widespread violence can be attributed to poor impulse control? And how many of these cases are related to brain malfunctions? If an individual's threshold for violent action is low, is it due to a gross cerebral defect, such as a tumor? Or is it the result of progressive environmental influences, such as living in a lower-class urban environment or watching violent television programs, which might create a cerebral predisposition to violence on a molecular (memory-bank) level...
...question that today such an approach is desperately wanting. Several weeks before climbing a tower in Austin, Texas, from which he murdered 17 people by rifle, Charles Whitman had gone to a psychiatrist and spoken of doing just that. After Whitman was killed, autopsy revealed a brain tumor-easily detectable by a simple medical procedure...