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Showing 3 results for Najafi

Esfandyar Ataei, Ramin Sadeghian, Peyman Najafi,
Volume 7, Issue 4 (Iranian Journal of Ergonomics 2020)
Abstract

Background and Objectives: Recognition and prevention of burnout plays an important role in promoting mental health and increasing the quality of services provided. This paper aimed to prevent the occurrence of this problem, seeking to identify the effective factors on the employees' burnout.
Methods: Many studies have been carried out by researchers on staff burnout using a descriptive-analytical approach, but there is no model comprehensively identifying the factors affecting employee burnout and, more importantly, expressing the relationships between the factors involved. Therefore, system dynamics analysis and VENSIM software have been used for explaining the quantitative relationships between factors affecting employees' burnout, evaluation and simulation.
Results: After designing causal, flow diagrams and model validation, four scenarios were extracted using system dynamics and simulation methods. The first scenario, which shows the current status of the company, indicated an increase in burnout. In the second scenario, with increased job satisfaction, employee productivity increased, but higher productivity, in practice, did not lead to reduction in burnout. In the third scenario, burnout decreased with increasing occupational control variables. And in the fourth scenario, by increasing the welfare and rest parameters of the staff, it was found that this scenario also had a significant effect on reducing the burnout of employees.
Conclusion: From among the four simulated scenarios, the fourth one, which is the increase in staff welfare parameters, had the most impact on reducing the burnout of Ardabil Regional Water Company employees.


Rashid Heidarimoghadam, Alireza Mortezapour, Khadijeh Najafighobadi, Hamid Saeednia, Saeedeh Mosaferchi,
Volume 10, Issue 3 (Iranian Journal of Ergonomics 2022)
Abstract

Objectives: The importance of surgery and its high workload are not hidden from anyone. So far, various studies have been conducted with the NASA-TLX instrument and other commonly used instruments to measure surgeons’ workload. The present study seeks to investigate the relationship between the mental workload of surgeons and their productivity through the validation of specialized tools for this job in Iranian culture.
Methods: After checking the validity and reliability of "SURG-TLX" and productivity tools, they were utilized among 60 surgeons to investigate the relationship between their workload and productivity (WHO-HPQ tool). Content validity indices, Cronbach's alpha coefficient and Spearman's correlation coefficient were used to analyse the results.
Results: Both tools had good validity and reliability in Iranian culture. The results of the relationship between mental workload subscales with different dimensions of productivity showed that some dimensions of mental workload including mental needs (correlation coefficient -0.65 and significance level 0.02), physical needs (correlation coefficient -0.54 and significance level 0.04) and time requirements (correlation coefficient -0.44 and significance level 0.02) had a reverse and significant relationship with the overall productivity score. Despite the reverse relationship between the other dimensions of mental workload and the overall productivity score in surgeons, this relationship was not statistically significant. The results indicated a reverse and significant relationship between some of the mental workload and some of the productivity subscales.
Conclusion: In addition to the possibility of using these tools in the future studies in Iran, due to the direct relationship between workload and productivity in surgeons, measures can be taken to maintain the workload at a standard level and prevent the reduction of their productivity.

Neda Ghasemi, Mohamadhossein Nabian, Hossein Fallah, Morteza Ghasemi, Amirmohamad Najafipour,
Volume 12, Issue 3 (Iranian Journal of Ergonomics 2024)
Abstract

Background: Prevention and early intervention appear to be essential because falls are among the leading causes of injuries among the elderly. Numerous factors contribute to falls in the elderly, however few studies take into account the majority of these aspects. With a focus on safety and ergonomic concerns in developing nations, this study examined multifactorial fall risk assessment.

Method: A review method was used to conduct this study. Articles from 2019 to 2024 were found using the keywords "Fall risk factor," "safety," "elderly," "fall prevention," "home safety," and "urban safety" on PubMed, Science Direct, and Google Scholar websites.

Results: After a total of 1154 publications were located, 523 were chosen based on their titles, 120 were examined based on their abstracts, and 51 were chosen whose full texts were available in English. Many elements, including psychological, physical, and cognitive characteristics, ergonomic and safety tools, awareness and education, social factors, and urban services, were examined in the publications about falls among the elderly.

Conclusion: The risk factors for falls in the elderly were taken into account in this study by classifying external variables (connected to governments) and internal factors (physical and psychological, related to the safety of the place of residence, etc.), all of which have an impact on falls in the elderly. There isn't much research that assesses several elements at once, and the majority of studies rely on.



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