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
Mobile Phone and Diseases A study by scientists in Finland has found that mobile phone radiation can cause changes in human
Mobile Phone and Diseases A study by scientists in Finland has found that mobile phone radiation can cause changes in human
admin
2010-01-14
61
问题
Mobile Phone and Diseases
A study by scientists in Finland has found that mobile phone radiation can cause changes in human cells that might affect the brain, the leader of the research team said,
But Darius Leszczynski, who headed the 2-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.
Leszczynski 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 do not know,” he said.
Leszczynski 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 Leszczynski, how does mobile phone affect one’s health? ______
选项
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.
答案
A
解析
文章论述的是手机导致人体细胞变化,所以从“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)”可
转载请注明原文地址:https://kaotiyun.com/show/iwhd777K
本试题收录于:
职称英语理工类基础题库职称英语分类
0
职称英语理工类基础
职称英语
相关试题推荐
Diet,AlcoholLinkedtoNearlyOneThirdofCancersDietissecondonlytotobaccoasaleading(1)ofcancerand,alongwithalcoh
Diet,AlcoholLinkedtoNearlyOneThirdofCancersDietissecondonlytotobaccoasaleading(1)ofcancerand,alongwithalcoh
Diet,AlcoholLinkedtoNearlyOneThirdofCancersDietissecondonlytotobaccoasaleading(1)ofcancerand,alongwithalcoh
Diet,AlcoholLinkedtoNearlyOneThirdofCancersDietissecondonlytotobaccoasaleading(1)ofcancerand,alongwithalcoh
Diet,AlcoholLinkedtoNearlyOneThirdofCancersDietissecondonlytotobaccoasaleading(1)ofcancerand,alongwithalcoh
Diet,AlcoholLinkedtoNearlyOneThirdofCancersDietissecondonlytotobaccoasaleading(1)ofcancerand,alongwithalcoh
Strawberries:Inastudythattrackedthedietsandhealthof1,271peopleinMassachusetts,researchersattheHarvardSchool
"Muchofthesicknessanddeathattributedtothemajorcommunicablediseasesisinfactcausedbymalnutritionwhichmakesthe
"Muchofthesicknessanddeathattributedtothemajorcommunicablediseasesisinfactcausedbymalnutritionwhichmakesthe
随机试题
用单动卡盘加工偏心套时,若测得偏心距偏小时,可将靠近卡盘轴线的卡爪再紧一些。()
判断呼吸衰竭的主要依据是
建筑节能工程检验批质量验收应参加的人员有()。
价值工程对象应根据企业条件选用适宜的方法,就可以取得较好效果,常用的方法有()。
丁公司坏账核算采用备抵法,并按应收款项余额百分比法计提坏账准备,各年计提比例假设均为年末应收款项余额的8%。2014年年初“坏账准备”账户的贷方余额为68000元;2014年客户甲单位所欠20000元按规定确认为坏账,应收款项年末余额为950000元
既是我国农村经济制度的基础,也是农村集体经济组织经营方式的基础是()。
[资料一]某省滨海市下辖某县土地管理部门作出收回光华公司土地使用权的决定。光华公司不服,向法院起诉,法院裁定不予受理。此后,光华公司向滨海市土地管理部门申请行政复议,滨海市土地管理部门受理后,经过审查,作出了维持该县土地管理部“收回光华
A公司是一家儿童用品制造商,该公司一直注重挖掘市场需求,推出满足市场新需求的产品,最近该公司经过市场调查发现,许多家长在孩子上幼儿园时,非常希望能够掌握孩子的最新动态,有情况能够及时与孩子沟通,经过研发,该公司推出了一款能够打电话的手表,让孩子能够随时和家
左边给定的是纸盒的外表面,下列哪一项能由它折叠而成?
Forthemostpart,thethousandsoflanguagesintheworldtodayfallintooneoftwocategories:tonalornontonal.Twolingui
最新回复
(
0
)