Mojtaba Zokaei, Iraj Alimohammadi, Fatemeh Abareshi, Mohsen Flahati, Freshte Tahery, Hamed Jalilian, Ali Asghar Khajevandi,
Volume 9, Issue 1 (Occupational Medicine Quarterly Journal 2017)
Abstract
Introduction: driving is such a complex cognitive task that requires a high level of vigilance and response to an emergency. Anything that leads to cognitive performance degradation in the driver's mental processing, increases crash risks. Traffic noise as one of the most destructive elements of cognitive function was examined in this study.
Methods: In this study, the sample consisted of 80 patients (40 cases and 40 controls) who were students of Tehran University of medical sciences that were selected through systematic sampling and then the average sound pressure level recorded traffic noise was played for participants in the acoustics room. To Measure reaction time and error in time movement anticipation, the RT and ZBA softwares were used ,respectively.
Results: The results revealed that reaction time increased significantly after exposure to traffic noise. The error time movement after exposure to traffic noise has not significant difference.
Conlusions: According to the results it can be concluded that mental activities such as speed and power of information processing are affected by traffic noise and in a confrontation with traffic noise show different changes.
Maryam Javadi, Zahra Sharifi, Alimohammad Nezamdoost, Sedighe Rastaghi, Fateme Abareshi,
Volume 13, Issue 2 (Occupational Medicine Quarterly Journal 2021)
Abstract
Introduction: Having a clear understanding of the relationship between risk perception, knowledge, and protective behaviors could play a significant role in occupational risk management. This study aimed to survey the relationship between risk perception and knowledge on the behavior of using respiratory protection equipment in the four National Oil Products Distribution Company.
Materials and Methods: In this descriptive cross-sectional study conducted in 2018, 52 workers from the loading and quality control departments of 4 national companies distributing petroleum products in Sabzevar, Bojnourd, Torbat Heydariyeh, and Shahroud participated. Data were collected through a researcher-made questionnaire whose validity and reliability were assessed (CVI: 0.9 and CVR: 0.92 and Cronbach's alpha coefficient was determined to be 0.73), and data were analyzed using SPSS19 software, and descriptive statistics and linear regression were analyzed.
Results: More than half of the participants, who were exposed to the chemicals, use RPDs (Respiratory Protective Devices) all the time and when they are exposed to chemicals. While 75% of them reported using RPDs (Respiratory Protective Devices), reduces the quality of their work. In this study, there was not any significant relationship between RPDs behavior with knowledge and risk perception (P > 0.05). However, the association between work experience and RPDs was negatively significant (p= 0.009).
Conclusion: The results of this study suggested that only education and knowledge could not promote individual risk perception, improving protective behavior, therefore other barriers such as uncomfortably of RPDs, or their interference with the worker should be considered. To achieve this goal, the safety and health officials of the companies must pay attention to its quality in addition to the correct choice of these devices.
