Siemens ct66 사용자 설명서

©

 S

iem

ens AG

 2003, W:\IC

M

_MP

_CC

Q

_S_U

M

\04F

L0059

4 R66_US

A

_Erste

rst

ellg

\Final\CT66_C

ingular\Frame_

und_

G

rafik\CT66_

en_us\C66_

FD

A.fm

VAR Langua

ge: a

m

; VAR issue

 date: 040720

 of CT66 Cingular am, A31008-H7840-A65-1-4A19 (06.08.2004, 11:17)

2. Researchers conducted a large 

battery of laboratory tests to assess 

the effects of exposure to mobile 

phone RF on genetic material. These 

included tests for several kinds of ab-

normalities, including mutations, 

chromosomal aberrations, DNA 

strand breaks, and structural chang-

es in the genetic material of blood 

cells called lymphocytes. None of 

the tests showed any effect of the RF 

except for the micronucleus assay, 

which detects structural effects on 

the genetic material. The cells in this 

assay showed changes after expo-

sure to simulated cell phone radia-

tion, but only after 24 hours of expo-

sure. It is possible that exposing the 

test cells to radiation for this long re-

sulted in heating. Since this assay is 

known to be sensitive to heating, 

heat alone could have caused the ab-

normalities to occur. The data al-

ready in the literature on the re-

sponse of the micronucleus assay to 

RF are conflicting. Thus follow-up re-

search is necessary. 

2

FDA is currently working with gov-

ernment, industry, and academic 

groups to ensure the proper follow-

up to these industry-funded research 

findings. Collaboration with the Cel-

lular Telecommunications Industry 

Association (CTIA) in particular is ex-

pected to lead to FDA providing re-

search recommendations and scien-

tific oversight of new CTIA-funded 

research based on such recommen-

dations.

Two other studies of interest have 

been reported recently in the litera-

ture:
• Two groups of 18 people were ex-

posed to simulated mobile phone 

signals under laboratory condi-

tions while they performed cogni-

tive function tests. There were no 

changes in the subjects' ability to 

recall words, numbers, or pic-

tures, or in their spatial memory, 

but they were able to make choic-

es more quickly in one visual test 

when they were exposed to simu-

lated mobile phone signals. This 

was the only change noted among 

more than 20 variables com-

pared.

3

• In a study of 209 brain tumor cas-

es and 425 matched controls, 

there was no increased risk of 

brain tumors associated with mo-

bile phone use. When tumors did 

exist in certain locations, howev-

er, they were more likely to be on 

the side of the head where the 

mobile phone was used. Because 

this occurred in only a small num-

ber of cases, the increased likeli-

hood was too small to be 

statistically significant.

4

In summary, we do not have enough 

information at this point to assure 

the public that there are, or are not, 

any low incident health problems as-

sociated with use of mobile phones. 

FDA continues to work with all par-

ties, including other federal agencies