Siemens SL56 사용자 설명서

SL56 fug am. english, A31008-H4920-A40-1-4A19 (13. June 2003, 12:50)

© 

Siem

ens AG 2001

, I

:\Mob

il\L55\SL56

\lo

ng\von_

[itl]\a

m

_FDA.FM

National Cancer Institute is expected 

to bear on the accuracy and repeat-

ability of these results.

1

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 

abnormalities, including mutations, 

chromosomal aberrations, DNA 

strand breaks, and structural 

changes 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 exposure to simulated cell 

phone radiation, but only after 24 

hours of exposure. It is possible that 

exposing the test cells to radiation 

for this long resulted in heating. 

Since this assay is known to be sensi-

tive to heating, heat alone could 

have caused the abnormalities to 

occur. The data already in the litera-

ture on the response of the micronu-

cleus assay to RF are conflicting. 

Thus follow-up research is neces-

sary. 

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 Internet 

Association (CTIA) in particular is 

expected to lead to FDA providing 

research recommendations and sci-

entific 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 exposed to 

simulated mobile phone signals under lab-

oratory conditions while they performed 

cognitive function tests. There were no 

changes in the subjects' ability to recall 

words, numbers, or pictures, or in their 

spatial memory, but they were able to 

make choices more quickly in one visual 

test when they were exposed to simulated 

mobile phone signals. This was the only 

change noted among more than 20 vari-

ables compared.

3

• In a study of 209 brain tumor cases and 

425 matched controls, there was no 

increased risk of brain tumors associated 

with mobile phone use. When tumors did 

exist in certain locations, however, 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 likelihood 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 

associated with use of mobile 

phones. FDA continues to work with 

all parties, including other federal 

agencies and industry, to assure that 

research is undertaken to provide