A study by scientists in Finland has found that mobile phone radiation can cause changes in human ceils that might affect the brain, the leader of the research team said.
But Darius Leszczynski, who headed the g-year study and will present findings next week at a conference in Quebec(魁北克), said more research was needed to determine the seriousness of the changes and their impact on the brain or the body.
The study at Finland’s Radiation and Nuclear Safety Authority found that exposure to radiation from mobile phones can cause increased activity in hundreds of proteins in human cells grown in a laboratory, he said.
"We know that there is some biological response. We can detect it with our very sensitive approaches, but we do not know whether it can have any physiological effects on the human brain or human body," Leszczynski said.
Nonetheless the study, the initial findings of which were published last month in the scientific journal
A. Mobile phone radiation can increase protein activities and such activities can make the protective shield more permeable.
B. Mobile phone radiation can shrink the blood vessels and prevent blood from flowing smoothly.
C. Mobile phone radiation will bring stress to people exposed to it.
D. Mobile phone radiation kills blood cells at a rapid speed.
A British investigation has found flaws in London’s pre-war assessment of Iraqi’s weapons threat, but the report has cleared Prime Minister Tony Blair of deceiving the nation into going to var. The investigation, led by former British civil service chief Robin Butler, concludes that British
intelligence officers were wrong to say that Iraq possessed weapons of mass destruction that could be deployed within 45 minutes.
That finding was a key element in a British government document issued in September 2002 that helped persuade the public and parliament that Iraq must be disarmed.
Mr. Butler told reporters Iraq had no deployable(可使用的)chemical or biological weapons at the time of the March 2003 invasion.
"We say it would be an unwise person who reaches the conclusion that nothing will ever be found in Iraq. But I do distinguish between stocks of agent, and weapons," he said. "And we do conclude that Iraq did not have signifi
A. Iraq possessed weapons of mass destruction that could be deployed within 45 minutes
B. British intelligence officers were wrong
C. Iraq had no deployable chemical or biological weapons
D. nothing will ever be found in Iraq
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