One important factor that leads to the development of musculoskeletal disorders (MSD) and cumulative trauma disorders (CTD) among visual display terminal (VDT) users is their work posture. While operating a VDT, a user's body posture is strongly influenced by the task, VDT workstation settings, and layout of computer accessories. This paper presents an analytic and rule-based decision support t...

Paulhus and Williams (2002) identified a "Dark Triad" comprising the following related personality styles: narcissism, psychopathy, and Machiavellianism. The heterogeneity found in narcissism and psychopathy raises the possibility of a second triad made up of emotional vulnerability and dark traits (i.e., the vulnerable dark triad; VDT). Along with vulnerable narcissism and Factor 2 psychopathy...

Use of video display terminals (VDTs) during pregnancy among working women was examined using data from a large case-control study of spontaneous abortions (SAB) occurring in 1986-1987. The crude odds ratio for SAB and VDT use was 1.2 for use of less than 20 hours per week (95% CI = 0.88, 1.6) as well as for 20 hours or more (CI = 0.87, 1.5), with little change after adjustment for a variety of...

To determine whether the use of video display terminals (VDTs) is associated with an increased risk of reduced birthweight (RBW) and preterm birth, a cohort of telephone operators who used VDTs at work was compared to a cohort of non-VDT-users. Among 2,430 women interviewed, 713 eligible singleton live births were reported. Exposure was estimated from company records and a representative sample...

An experiment in a mock-up office space gave occupants control over dimmable lighting circuits after a day working under pseudo-random lighting conditions. Data analysis indicated that the lighting experienced during the day influenced the changes in lighting made at the end of the day. Occupants chose to reduce screen glare if any existed. Even after allowing for the effect of glare, desktop i...

METHODS. A pilot questionnaire was created by consulting the literature, clinicians, and video display terminal (VDT) workers. The replies of 636 subjects completing the questionnaire were assessed using the Rasch model and conventional statistics to generate a new scale, designated the Computer-Vision Symptom Scale (CVSS17). Validity and reliability were determined by Rasch fit statistics, pri...

Institute of Ecology and Biological Resources, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam (VDT) Animal Physiology, Institute of Neurobiology, Faculty of Sciences, University of Tübingen, Auf der Morgenstelle 28, D-72076, Tübingen, Germany (VDT, AD, CD, HS) School of Biology and Environmental Sciences, University College Dublin, Belfield, Dublin 4, Ireland (SJP, ECT) Department o...

A method is described for predicting whether a visual display terminal (VDT) will appear to flicker given the display phosphor persistence, refresh frequency, luminance and other environmental factors such as the distance between the user and the VDT. Based on research on human temporal sensitivity (Kelly 1969), one can predict the maximum screen luminance and the minimum refresh frequency that...

In this work, we have studied how the vertical illuminance of human eye position, horizontal work surface, and brightness computer screen in office space lighting are correlated under an energy-saving environment. This investigation was conducted a full-scale laboratory that simulates with 20 adults. It found when indoor ambient changes, subject’s position is affected accordingly, two factors s...