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Comparison Between the Strain Indicator HRV of a Head-Based Virtual Retinal Display and LC-Head Mounted Displays for Augmented Reality

Oehme O., Schmidt L., Luczak H.

International Journal of Occupational Safety and Ergonomics

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2003

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Vol. 9, No. 4

419--430

EN

Augmented Reality uses Head Mounted Displays (HMD) to overlay the real word with additional virtual information. Virtual Retinal Displays (VRD), a new display technology, no longer requires Liquid Crystal Displays (LCD). VRD technology addresses the retina directly with a single laser stream of pixels. There are no studies on the user’s informational strain in this new VRD technology. Various papers have shown that Heart Rate Variability (HRV) is a valid indicator for the user’s informational strain. An empirical test revealed no difference in the user’s HRV between VRD technology and LCD technology. Consequently, there seems to be a comparable user informational strain regarding the display types.

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International Comparison of Occupational Safety and Health Research - A Review Based on Published Articles

Brueggmann M., Roetting M., Luczak H.

International Journal of Occupational Safety and Ergonomics

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2001

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Vol. 7, No. 4

387--401

EN

A comparison of international literature in occupational safety and health (OSH) research over the years from 1980 to 1998 was conducted. The comparison is based on the different languages of the over 35,000 articles, which were collected from different databases. The distribution of languages in the analyzed data has to be considered carefully with respect to the original purpose of the data collection and the specific role of the international publication language, English. The comparison shows that in several aspects OSH research does not differ in different publication languages. In some methodological aspects, and in specific objects of research, differences between articles published in different languages can be found.

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Ergonomics as Integrating Constituent in Occupational Safety and Health - Past, Present, and Future

Roetting M., Luczak H.

International Journal of Occupational Safety and Ergonomics

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2001

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Vol. 7, No. 4

507--526

EN

Ergonomics as a discipline was in the past, is in the present, and will be in the future, an integrating constituent in occupational safety and health (OSH). This statement is based on the self-conception of ergonomics and the level concept of human work. It is further supported by the results of about 120 interviews with German experts involved in research projects of the last 2 decades and the results of a quantitative analysis of international literature. The most important themes of past research are compiled and a prognosis of research themes of the future is given. The future role of ergonomics is exemplified by its contributions to the further development of OSH management systems.