جستجوی مقالات مرتبط با کلیدواژه « sources of stress » در نشریات گروه « روانشناسی »

The pilotchr('39')s performance cognitive is an important construct that plays a vital role in preventing aviation incidents. Various studies have identified factors affecting pilot cognitive performance, but there is a research gap regarding interaction of these factors and their sequence.

The aim of present study was to develop a structural model for predicting cognitive performance of Iranian airline pilots based on the sources of stress and situation awareness considering the mediating role of mental fatigue and flight factors.

The method of present study was descriptive-correlational. The statistical population of study included all male civilian pilots working in Iranian airlines in 2019. Using a convenience sampling method, 310 people participated in the study as the sample. Research data were collected through Occupational Stress Inventory (Osipow & Spokane, 1998), Multidimensional Fatigue Inventory (Smets, 1996), Situation Awareness Rating Technique (Taylor, 1990) and performance evaluation in flight simulation environment and analyzed using structural equation modeling method and bootstrap test in Amos-21 software.

The results showed that the hypothetical research model with some modifications had a good fit. The fit indices of the final model included TLI= 0.91, CFI= 0.93, IFI= 0.93, GFI= 0.93, SRMR= 0.056, RMSEA= 0.055. The results also showed that occupational stress affects cognitive performance through mediating role of mental fatigue. Situation awareness also affected cognitive performance by mediating role of mental fatigue and flight factors.

Based on the results, it can be concluded that pilots who have less occupational stress and mental fatigue, more situation awareness of and a high level of flight factors show better cognitive performance.

The purpose of this study was to evaluate the effect of mental fatigue and situational awareness on the cognitive performance of Iranian airline pilots according to the moderating role of sources of stress. The method of the present study was correlation and the statistical population of all male civilian pilots working in Iranian airlines in 2019. 320 pilots participated in the analysis using the convenience sampling method as the main sample. Participants responded to a Multidimensional Fatigue Inventory, Situational Awareness Rating Technique, and Occupational Stress Inventory, and their cognitive performance was assessed based on simulation environment data. Data were analyzed using Pearson correlation, Bootstrap test and interactive effects diagram. The results showed that stress can moderate the effect of mental fatigue on pilot decision-making performance and the effect of situational awareness on executive attention performance. Based on the findings of the present study, it can be concluded that mental fatigue, situational awareness and sources of stress can interact to predict the cognitive performance of Iranian Airlines pilots.

The purpose of this study was to Comparison of stress sources between obese and non-obese staff of educational department in Karaj. Among 4 areas of educational department the first area random sampling method was selected, 50 persons (25 men and 25 women) with consideration of factors such as area of residence, educational level, marital status, age and weight were selected. Then we divided them into four groups of obese and non-obese male and females.To measure stress, the stress scale was used Courdon stress scale adult form. After data collection the analysis was preformed through SPSS soft ware. T - Test result showed that Sources of stress in obese are more than non-obese. Significant differences between the two groups p0/001. Therefore, These findings indicate that the contribution of factors such as quality of life health and personal life, as sources of stress in obesity are effective.

Sources of stress are one of the important discussions in the behavioral and psychiatric sciences, having invariably been considered by the scholars and researchers. In this way, the present research surveys the sources of stress of martyrs and devotees families in one of the cities of Khuzestan Province.
The martyrs and devotees families of one the cities of Khuzestan Province are the subjects of this study that 200 subjects were randomly selected in different stages (146 male and 54 female). The data were collected and analyzed by the inferential and descriptive statistics.
The data analysis indicated that the martyrs and devotees families suffered from two sources of stress: matters related to the disease treatment and family and livingrelated expectations. On the other hand, the data analysis indicated that the mean scores of martyrs families are higher than devotees ones; therefore, there is a significant difference between them.
Since the Iran-Iraq War had brought an additional stress for martyrs and devotees families; accordingly, the present research showed that stresses of the mentioned families have been appeared as the paying medication costs as well as family and livingrelated expectations.