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Showing 3 results for Soleimani
Investigating the Effect of Environmental Thermal Comfort Components on Students' Cognitive Performance based on the Analysis of Fatigue Factor (Study Sample of Architecture Students of Universities in Ilam)
Hamed Ahmadi, Mojtaba Noorllahi, Mohmmad Reza Soleimani, Ehsan Bitaraf,
Volume 10, Issue 4 (Iranian Journal of Ergonomics 2023)
Abstract
Objectives: Human-made environments can have negative and positive effects on the planet. One of the two-faceted artifacts is the construction of buildings for people's lives, buildings that are being built irregularly and quickly and lead to excessive consumption of fossil resources and energy waste. Become Therefore, one of the most important things in the design of a building is providing its thermal comfort; Comfort that has a direct effect on the cognitive function of humans. In this research, in addition to the topic of thermal comfort, we also discuss fatigue in the classroom, which is one of the factors influencing the cognitive performance of the students.
Methods: In this research, the cognitive performance of people were examined and compared in the range of thermal comfort and the suggested range of the Ashri standard. To investigate their performance in different temperature ranges, 220 architecture students of Ilam universities were selected by systematic random sampling method. The state of thermal comfort, cognitive functions, and fatigue of people was evaluated after measuring environmental factors through questionnaires and standard cognitive function software.
Results: In addition to thermal comfort, which has a direct relationship with the cognitive performance of students, the passage of time is not an exception to this rule, in other words, the cognitive performance of students is derived from thermal comfort and the passage of time, which has a direct effect on academic, mental productivity. and also their practical efficiency. After examining the data in this regard, we reached meaningful results that indicate the highest efficiency of the students in the conditions of proper thermal comfort and the first 60 minutes of the start of their performance.
Conclusion: The results of this research show that even if the thermal comfort of the students' classrooms is provided according to the ASHERI standard, the students' cognitive performance will decrease after 60 minutes from the start of the class.

Relationship of Stress and Insomnia with Depression among Health Care Workers in Hamadan, Iran: Application of Path Analysis
Salman Khazaei, Mobin Faghih Soleimani, Saman Khosronejad, Ali Safdari, Ensiyeh Jenabi, Shokoufeh Eskandari, Erfan Ayubi,
Volume 12, Issue 1 (Iranian Journal of Ergonomics 2024)
Abstract
Objectives: Various causal pathways play a role in the occurrence of depression in healthcare workers. This study aimed to assess the effect of perceived stress and insomnia on depression in healthcare workers using path analysis in Hamadan, Iran.
Methods: In this cross-sectional study, healthcare workers from Shahid Beheshti and Sina hospitals in Hamedan in 2023 were recruited. Perceived stress with two subscales of perceived helplessness and perceived self-efficacy, as well as insomnia and depression, were investigated using validated questionnaires. The path analysis was applied to assess the association.
Results: In total, 235 healthcare workers (35.7% nurses) were included. Gender, age, monthly working hours, and number of night shifts per month had a significant impact on depression (P<0.05). Path analysis demonstrated that except for the effect of perceived self-efficacy on insomnia, all standardized regression weights for relationships were statistically significant (P<0.05). The effect size of perceived helplessness on depression was the strongest compared to other relationships (standardized regression weight = 0.40). The direct effect of perceived helplessness and perceived self-efficacy on depression or insomnia as a mediator had a good fit to the data.
Conclusion: As evidenced by the obtained results, with the implementation of intervention and preventive programs to reduce stress and improve sleep, the occurrence of depression in healthcare workers is expected to decrease significantly.

Validation of the Persian Version of the Occupational Anxiety Inventory among the Iranian Workforce
Payam Khanlari, Leila Soleimani, Armita Pak, Elaheh Amuzadeh, Seyed Abolfazl Zakarian,
Volume 14, Issue 2 (Iranian Journal of Ergonomics 2026)
Abstract
Objectives: Occupational anxiety is a critical psychological issue in the workplace, negatively impacting employees' mental health, job satisfaction, and productivity. This study aimed to evaluate the psychometric properties of the Persian version of the Occupational Anxiety Inventory among Iranian workers.
Methods: A cross-sectional validation study was conducted. The questionnaire was translated into Persian using the forward-backward procedure. Data were collected via online surveys using convenience sampling. Internal consistency was assessed using Cronbach's alpha and composite reliability (CR). Construct validity was examined through exploratory and confirmatory factor analyses (EFA and CFA), and convergent validity was evaluated using the average variance extracted (AVE). Criterion validity was assessed by examining correlations between occupational anxiety and general anxiety, work-related outcomes, and demographic variables.
Results: The Persian version of the Occupational Anxiety Inventory showed excellent internal consistency, with a Cronbach's alpha of 0.95. The Kaiser-Meyer-Olkin index was 0.941, and Bartlett's test was significant, supporting factor analysis. Exploratory factor analysis indicated acceptable factor loadings, and confirmatory factor analysis showed standardized loadings ranging from 0.688 to 0.878. The AVE was 0.66, and CR was 0.951, indicating good convergent validity and reliability. Occupational anxiety was positively correlated with general anxiety (r = 0.693), impaired functioning due to anxiety, sick leave, intention to quit, and history of anxiety and depression. Negative correlations were found with job satisfaction, supervisor support, and coworker support.
Conclusion: The Persian version of the Occupational Anxiety Inventory has very favorable psychometric properties. This instrument has the necessary validity and reliability to measure occupational anxiety in the Iranian employee population. It is recommended to researchers and occupational health professionals for screening, identifying anxiety dimensions, and developing preventive interventions.

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