时间:2019-01-30 作者:英语课 分类:健康与经济


英语课

HEALTH REPORT - Cell Phones Linked to Benign 1 Tumors
By Cynthia Kirk


Broadcast: Wednesday, November 03, 2004


This is Gwen Outen with the VOA Special English Health Report.


A Swedish study suggests that people who use cellular 3 phones for at least ten years might be at greater risk for developing a rare, non-cancerous tumor 2. These tumors are called acoustic 4 neuromas. They grow on the nerve that leads from the inner ear to the brain. The risk was higher on the side of the head where the phone was usually held.


Acoustic neuromas affect fewer than one in one hundred thousand people a year. They grow slowly and can take several years to be discovered. The tumor pushes on the surface of the brain, but does not grow into the brain itself.


Researchers at the Karolinska Institute in Stockholm, Sweden led the study. It was published in the International Journal of Epidemiology.


The study involved seven hundred fifty Swedes. About one hundred fifty of them had acoustic neuromas. About six hundred other people did not. Researchers asked all of the people about their cell phone use.


The researchers found that those people who had used cell phones for at least ten years had almost two times the risk of developing acoustic neuromas. In addition, the tumor risk was almost four times higher on the side of the head where the phone was usually held.


There was no increased risk for those who had used cell phones for fewer than ten years. At the time the study was done, only analog 5 phones had been in use for ten years.


Almost all early analog cell phones released more electromagnetic radiation than the digital phones now being sold. But researchers say they cannot be sure if the results are just linked to the use of analog phones. They say further study is needed.


Several earlier experiments have shown radiation from cellular phones can affect brain cells in a laboratory. But studies on people have found no evidence that the phones present a health risk. However, experts say children should avoid using the phones for long periods because their brains are still developing.


The study is part of a wider research program known as the Interphone study. The World Health Organization's cancer research institute organized the research. It is trying to find out if electromagnetic radiation from cell phones damages health.


Final results of the study are expected to be released early next year.


This VOA Special English Health Report was written by Cynthia Kirk. This is Gwen Outen.



adj.善良的,慈祥的;良性的,无危险的
  • The benign weather brought North America a bumper crop.温和的气候给北美带来大丰收。
  • Martha is a benign old lady.玛莎是个仁慈的老妇人。
n.(肿)瘤,肿块(英)tumour
  • He was died of a malignant tumor.他死于恶性肿瘤。
  • The surgeons irradiated the tumor.外科医生用X射线照射那个肿瘤。
adj.移动的;细胞的,由细胞组成的
  • She has a cellular telephone in her car.她的汽车里有一部无线通讯电话机。
  • Many people use cellular materials as sensitive elements in hygrometers.很多人用蜂窝状的材料作为测量温度的传感元件。
adj.听觉的,声音的;(乐器)原声的
  • The hall has a fine acoustic.这个大厅的传音效果很好。
  • Animals use a whole rang of acoustic, visual,and chemical signals in their systems of communication.动物利用各种各样的听觉、视觉和化学信号来进行交流。
n.类似物,模拟
  • The analog signal contains high-frequency video information,which helps make up the picture.模拟信号包括有助于构成图像的高频视频信息。
  • The analog computer measures continuously,without proceeding step by step.模拟计算机不是一步一步地进行,而是连续地进行量度。
学英语单词
absorption of light
Actinodaphne lecomtei
aprication
april in paris
artificial stone finish
automatic group-busying facility
boletus calopus
brushing aside
built up crank shaft
bunny-hop
Canarese
Canby
chemical tank cleaning method
clock work
color motif
computation of heat balance
consultative council
content architecture level
crassexinous
determination of sex
Dextromethmorphan
diptilomiopus cuminis
Dirkiesrus
Drazgose
emergency signal
emissary foramen
Epictetian
facies posterior (cruris)
febris complicata
financial tie
Gechingen
glandlike
grolsch
gromidin
guidance system test
Guindos
hashout
Hedera sinensis
homesearch
hot dip metal coating
Huong Minh
hybrid coil (bridge transformer)
identification of wound
impatiens longialata pritz.
implies
induced emission
inspection enlarger
isolateral leaf
Kalar
keep on truckin'
La Panza
Lackawaxen
man machine complex
mazzotta
menstrual history
mnchhausen
needle printer
nettle rashes
neurolawyers
niotha venusta
odontanthias chrysostictus
oiling drum
outbluffing
pandor
pay your dues
pepe passage
perspective geometry
phrictopathic
ploughing disc harrow
polyethylenimine
porricin (pyroxene)
private consumption
production possibility
Rexroth, Kenneth
Rφrby
San Cassiano, Cima
sequence of random number
sessile drop method
shaddap
side-handing
significant positive correlation
sniffed at
stable-hands
stand at ease
stochastic resonance
Stomatococcus
subsistit
summary justice
talking through
the ss
thymous
to bake
toystore
tuebingen
unlimbers
unwholesome
up-closest
volcanic collapse coast
Wateringen
white coffee
Wonders will never cease.