Tibbi-i-kar

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Abstract
Background: Usability is an index to assess a product from the viewpoint of users satisfaction, efficiency and productivity improvement. The main attributes of usability that are derived from the human factors are  and used  in usability design of the interfaces Include: compatibility, consistency, flexibility, minimal action, perceptual limitation, usefulness, learnability, ease of use, minimal memory load, user guidance, satisfaction and errors. The main aim of this study was to assess the usability of interface design tool for a ventilator utilized in the hospitals of Arak city, Iran; and study its validation and reliability.
Methods and Materials
After constructing the initial questionnaire from the standard sources, specific techniques to determine the validity,  and Cronbach's alpha coefficient were used for the validity and reliability study. The study procedure was: determining the scope and dimensions of the questions, drafting questionnaire, assigning members of the expert panel, study, questionnaire data acquisition  and analysis methods, determining acceptance criteria of the questions and the content validity and reliability index.
Results
Final tool was a 42-items questionnaire. The content validity index (CVI) of questionnaire was 0.86. The results showed that the total Cronbach's alpha coefficient was 0.89 as an acceptable value for the reliability of questionnaire.
Conclusion
After the final questionnaire design and the appropriate validity and reliability of it, adopting this tool to assess the usability of breathing apparatus (ventilator) is recommended. With usability assessment of such vital instruments, quality improvement, higher efficiency and productivity as well as errors reduction and good design user interface will be achieved.
 

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Introduction:Work environments have harmful physical, social, and workplace psychological factors that can affect people's health and disrupt other areas of people's lives. Workplace human resources spend at least a third of their lives at work, and the pressures and stresses of work can jeopardize their health and, consequently, threaten organizational interests and goals. Decreasing the performance of the individual, the amount of productivity of the organization also decreases. In recent years, one of the most critical issues and problems in administrative systems, including occupational hazards that have attracted the attention of researchers, is the issue of public health and burnout of individuals in an organization. Due to the recorded adverse effects of burnout, this syndrome can affect job performance, such as quality of work, general health, and job satisfaction. One of the main inevitable consequences of job stress is burnout, affecting the quality of care provided by health workers. This study aimed to determine the relationship between burnout and general health in health workers in Arak health centers.
Materials and Methods: In this descriptive-analytical study, 110 health workers working in the Arak health center were studied. The number of samples was done using census, and all health workers working in Arak Health Center were selected. Data collection tools in this study were a 22-item Maslach burnout questionnaire and a 28-item general health questionnaire. The data of this study were analyzed using descriptive data and one-way ANOVA, and Pearson correlation coefficient by SPSS22 software.
Results: According to the findings of this study, there was a significant relationship between general health and burnout, meaning that people with higher general health experienced lower rates of burnout. The status of burnout was moderate among the health workers studied. The burnout scores of male and female health workers were almost the same, and there was no significant difference between them. There was a statistically significant direct relationship between general health and emotional fatigue and depersonalization using Kendall, Pearson, and Spearman test. A statistically significant inverse relationship was observed between general health and personal inadequacy.
Conclusion: Considering the relationship between burnout and public health, the Arak city health center managers must implement programs to promote and improve job motivation, human relations, and a sense of self-efficacy. Promoting general health and reducing the burnout rate of health workers should be a priority for the University of Medical Sciences managers.