首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A study by scientists in Finland has found that mobile phone radiation can cause changes in human ceils that might affect the br
A study by scientists in Finland has found that mobile phone radiation can cause changes in human ceils that might affect the br
admin
2010-06-30
38
问题
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 Differentiation, raises new questions about whether mobile phone radiation can weaken the brain’s protective shield against harmful substances.
The study focused on changes in cells that line blood vessels and on whether such changes could weaken the functioning of the blood-brain barrier, which prevents potentially harmful substances from entering the brain from the bloodstream, Leszczynski said.
The study found that a protein called hsp27 linked to the functioning of the blood-brain barrier showed increased activity due to irradiation and pointed to a possibility that such activity could make the shield more permeable(能透过的), he said.
"Increased protein activity might cause cells to shrink—not the blood vessels but the cells themselves—and then tiny gaps could appear between those cells through which some molecules could pass." he said.
Leszezynski declined to speculate on what kind of health risks that could pose, but said a French study indicated that headache, fatigue and sleep disorders could result.
"These are not life-threatening problems but can cause a lot of discomfort," he said, adding that a Swedish group had also suggested a possible link with Alzheimer’s disease.
"Where the truth is I do not know," he said.
Leszezynski said that he, his wife and children use mobile phones, and he said that he did not think his study suggested any need for new restrictions on mobile phone use.
According to the passage, what would be the future of the use of mobile phone?
选项
A、People will be forbidden to use mobile phone.
B、People dare not use mobile phone because of its radiation.
C、People will continue to use mobile phone.
D、There will be new restrictions on the use of mobile phone.
答案
C
解析
从最后研究人员的几句话可以判断手机影响程度到底如何还不知道,而且提到研究人员自己以及其家人还在用手机,可推测手机的使用不会因为这些还不确切的科学发现而停止。
转载请注明原文地址:https://kaotiyun.com/show/WAJd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
Payandproductivity,itisgenerallyassumed,shouldberelated.Buttherelationshipseemstoweaken【C1】______peoplegetolder
Payandproductivity,itisgenerallyassumed,shouldberelated.Buttherelationshipseemstoweaken【C1】______peoplegetolder
EmployeesoftheTaffValeRailwayCompanyinSouthWalesgreasedthetracksandcuttelegraphwiresduringabitterstrikein1
EmployeesoftheTaffValeRailwayCompanyinSouthWalesgreasedthetracksandcuttelegraphwiresduringabitterstrikein1
EmployeesoftheTaffValeRailwayCompanyinSouthWalesgreasedthetracksandcuttelegraphwiresduringabitterstrikein1
Psychologiststakecontrastiveviewsofhowexternalrewards,from【C1】______praisetocoldcash,affectmotivationandcreativit
Psychologiststakecontrastiveviewsofhowexternalrewards,from【C1】______praisetocoldcash,affectmotivationandcreativit
TherecentsocialandeconomicchangesintheUShavegreatimpactonalltheAmericanhousingsystem.
Theaveragepersonseestensofthousandsofimagesaday—imagesontelevision,innewspapersandmagazines,andonthesidesof
AccordingtoCasey,whatdodesignersoftenforgetindesigningasystemoraproduct?
随机试题
简述X线成像原理。
行政法的基本原则有()。
关于我国的外交,下列说法正确的是()。
A.蠕动B.分节运动C.集团运动D.紧张性收缩E.容受性舒张属于小肠特有的运动形式是
患者男,56岁。空腹血糖11.5mmol/L,尿糖(﹢),尿酮体(﹢),引起该患者尿酮体呈阳性的主要原因是
某承包单位通过投标承接丁一大型建设项目的设计和施工任务,在施工过程中,该承包单位提出工程延期的条件,应该允许的有( )。
资本成本即筹资费用,是指企业为筹集和使用资本而付出的代价。()
在下列()情况下,注册会计师可能需要在审计报告中增加其他事项段。
国防部的分析家担心,如果机械用具制造工业进一步萎缩,会严重地威胁到美国进行一场长时期战争的能力。然而在国防部公开地把这个安全问题同进口配额问题联系起来之前,机械用具工业在为进口配额的请愿活动中已经提出了国家安全问题。以下哪项,如果是正确的,能最有力
EveryDogHasHisSayKimikoFukudaalwayswonderedwhatherdogwastryingtosay.Wheneversheputonmakeup,itwouldpul
最新回复
(
0
)