Impact of working environments upon human-machine dialogues: a formal logic for the integrated specification of physical and cognitive ergonomic constraints on user interface design

Article Abstract:

Human-machine interaction simulations provide a means of revealing ergonomic constraints, and help in designing the room layout and the workstation. The simulations disclose constraints posed by user interface hardware and furniture. Results of ergonomic studies are useful in the analysis of the physical and mental constraints during the development of work systems. Mathematical specification techniques supply high level abstractions, useful in denoting room layout and dialogue design.

Analysis, Usage, Occupational health and safety, Occupational safety and health, Work environment, Simulation methods, Simulation, Human-computer interaction

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An ergonomic evaluation of nursing assistants' job in a nursing home

Article Abstract:

An ergonomic evaluation of the physiological stress of working as a nursing assistant in a nursing home is presented. Thirty-eight assistants ranked 16 various patient handling jobs which led to low back stress. Transferring patient from toilet to wheelchair (WC), WC to toilet and WC to bed were among the top eight tasks which produced much back stress. Nursing assistants experienced much low-back pain, prompting 51% to consult health care for treatment.

Health aspects, Nurses' aides, Care of the sick

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Isoresponse time regions for the evaluation of visual search performance in ergonomic interface models

Article Abstract:

A study to determine the isoresponse times within a variety of variables was conducted. The variables were field heterogeneity, target uncertainty, non-target density, size contrast, directed attention, peripheral position and meridian. There were 14 subjects with 20/20 to 20/40 vision. Results indicated that the response times were significantly longer than that of studies focusing on only one variable.

Research, Models, Ergonomics, Visual discrimination

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