ISSN:0096-1736    

出版商:OVID    

年代:1983

数据来源: OVID

ISSN:0096-1736    

出版商:OVID    

年代:1983

数据来源: OVID

ISSN:0096-1736    

出版商:OVID    

年代:1983

数据来源: OVID

摘要:

The Occupational Medical Forum presents questions of general interest received by the AOMA Committee on Occupational Medical Practice, Answers usually are prepared by the Committee, representing the composite best judgment of its members. Such replies do not necessarily represent an official position of the American Occupational Medical Association. In some cases, the responses will be prepared at the Committee's request by consultants with special qualifications in specific fields. Questioners are not named. Readers who wish to submit questions to the Committee should address inquiries to: Committee on Occupational Medical Practice, American Occupational Medical Association, 2340 S. Arlington Heights lid., Arlington Heights, IL. 60005.

ISSN:0096-1736    

出版商:OVID    

年代:1983

数据来源: OVID

ISSN:0096-1736    

出版商:OVID    

年代:1983

数据来源: OVID

摘要:

Workers who operate video display terminals (VDTs) are sometimes reported to experience high levels of physical and psychological distress. In an effort to investigate these reports a study was conducted that compared the responses of 145 Directory Assistance operators who used VDTs to retrieve listing with 105 controls who referred to printed paper directories. The comparison was mode on the basis of a single questionnaire that was administered to both groups groups The questionnaire asked about the experience of 15 Physical discomforts of the sort that are sometimes attributed to work with VDTs. There was only one statistically significant difference in the incidence of complaint: VDT operators were more likely to complain of neck discomfort.On the whole VDT operators expressed greater satisfaction with their jobs than did operators who used paper records VDTs may pose special problems particularly if they are selected of installed without adequate regard for the physical limitations of workers who must use them Several of these problems are discussed.

ISSN:0096-1736    

出版商:OVID    

年代:1983

数据来源: OVID

摘要:

Serious questions have been raised about the health effects of electromagnetic emissions from video display terminals (VDTs). Extensive measurements of the electromagnetic emission from VDTs by Bell Laboratories, academic institutions such as Duke University, and agencies of the federal government have resulted in the unanimous conclusion that emissions from these devices do not represent a health hazard to users regardless of whether the devices are new or old.

ISSN:0096-1736    

出版商:OVID    

年代:1983

数据来源: OVID

摘要:

Retinal damage is the most important hazard from light. There are three types of retinal damage classified as structual, thermal and photochemical; damage type depends on wavelength, power level and exposure time. Photochemical damage from blue light produces solar retinitis and is postulated to accelerate aging which leads to senile macular degeneration. The lens protects the retina from blue light and near ultraviolet (UV) but at the expense of cataractogenesis. Lens removal exposes retina to near UV that is six times more dangerous than blue light. Filters are recommended to protect lens and retina from blue light and near UV.

ISSN:0096-1736    

出版商:OVID    

年代:1983

数据来源: OVID

摘要:

The fundamental properties of microwave energy and the acknowledged tissue interaction mechanisms and bioeffects are described. Recently proposed exposure standards and the rationale underlying their development are reviewed.

ISSN:0096-1736    

出版商:OVID    

年代:1983

数据来源: OVID

ISSN:0096-1736    

出版商:OVID    

年代:1983

数据来源: OVID