A self-administered questionnaire was completed by 145 Directory Assistance operators
who used video display terminals (VDTs) to retrieve listings and by 105 control subjects who …

… The miniature device “squeezed” both voice and video into ordinary telephone lines by
flashing pictures at only two frames per second. The picture seemed less animated but the …

… Video conversationalists publicly display strong expectations that the face of the current
speaker should be fully visible, oriented toward the camera, and as large as practically feasible. …

… exchange, whereas the video channel does not play a … everyday expe¬ rience that the
telephone is a most efficient in… , video conferencing requires more time than the telephone …

… video phones, the video channel too made any communication a public feature. The typical
position of the phone during a video call made the display … Making and receiving telephone …

The effects of continuous exposure of chick embryos and young chickens to the electromagnetic
fields (EMFs) emitted by video display units (VDUs) and GSM cell phone radiation, …

… It is based on video recordings of situated activities in their ordinary settings—… of video
recording, produced during fieldwork in call centers: it shows the payoffs of videotaping telephone …

… technology is the automatic telephone exchange. These … telephone exchange is the
expertmental videotelephone … number of different types of telephone exchange has increased …

… quantitatively the effect of video crosstalk in a visual-telephone system with a scanning …
Although the wanted pictures were head-and-shoulders views of typical visual telephone users, …

… magnitude of adverse health conditions reported by video display terminal (VDT) operators.
To … (VDT) have operators suggested are at that increased video risk dis- play terminal (VDT) …