فهرست مطالب farshad hashemzadeh

Periodic examinations are one of the requirements of occupational health care system and part of the second level of disease prevention which is recommended by the Occupational Safety and Health Organization. The aim of this study was to determine the prevalence of occupational diseases among workers in the industry and services sectors in Robat Karim.

This work is a cross-sectional study in which 3026 workers were asked for periodical examinations, referring to Occupational Medicine of Shahid Shaterian in Robat Karim. Data collection checklist, SPSS 22 software and descriptive statistical analyses including central indexes, distribution and frequency distribution, were used to describe and compare the studied variables. Ethical considerations were also observed at all stages of the study.

The highest prevalence of underlying disease in the age group over 41 years old both in men and women were acquired type and diabetes, followed by cardiovascular diseases. The most common type of general disease in women was asthma, followed by hypothyroidism and cardiovascular diseases. In periodic examinations, 26% of workers showed to have hearing loss, less than 1% had contact dermatitis, and 3% had work-related back pain.

The high prevalence of hearing problems necessitates hearing screening, training and technical-engineering controls to prevent this disease. These measures play an effective role in the early identification of sensorineural hearing loss. Considering the prevalence of underlying diseases, the implementation of control programs and self-care programs for employees is a requirement.

Hospital waste is one of the most important pollutants caused by hospital processes. The purpose of this study was to evaluate Health, Safety and Environmental (HSE) risks of medical waste unit.

This cross-sectional study was conducted in 2020. The study tool included the Failure Mode and Effects Analysis (FMEA) technique. This research was conducted in three sections of medical Waste Unit of the Waste Management Organization including collection, processing and landfill sections.

The FMEA results showed that the highest levels of environmental Risk Priority Number (RPN) in the collection, processing and landfill sections were estimated 245, 392, and 294 respectively. Furthermore, the lowest levels of environmental risk in these three sections were calculated as 144, 80, and 60 respectively. The FMEA results indicated that the highest levels of safety and health risk in the collection, processing and landfill sections were calculated to be 252, 420 and 420, respectively. Also, the lowest level of safety and health risk in all three sections was estimated to be RPN=90.

Findings of this study indicated that the level of hospital waste risk is high. Therefore, reducing the incidence of catastrophic consequences associated with these wastes should be considered a priority of the waste management system.

Crisis management, as one of the areas of consequence management, can increase crisis resilience and reduce the level of organizational vulnerability in times of crises. Therefore, this study was designed and conducted to assess the components of crisis management in private and public hospitals.

The present study was conducted in 10 hospitals, in 2020. The sample size was estimated to be 200. The components of crisis management in this questionnaire included: management commitment, taking the blame, learning, awareness, preparedness, flexibility and transparency. Data analysis was performed using Independent samples t-test and Chi-square/Fisher exact test.

The results showed that the two groups of public and private hospitals did not have significant differences in terms of individual variables (p<0.05). The crisis management index in the two groups of public and private hospitals was estimated to be 4.11 and 3.22, respectively. The results of comparative assessment of the crisis management components in the two groups revealed that all these components in public hospitals are estimated to be higher than that of the private hospitals, and their differences are also statistically significant (p<0.05).

The findings of the study indicated that although the resilience of private hospitals was higher than average, the comparative assessment of the crisis management components revealed that the level of resilience in times of crises in public hospitals was higher than the private ones. Therefore, the components of crisis management in these hospitals should be improved with a proper design and a comprehensive crisis management program.

Today's businesses spend a lot of money on educating their personnel. What matters is that people use their knowledge to their jobs. The goal of this study was to look into the environment that affects learning transfer and come up with a solution to increase the effectiveness of health, safety and environment (HSE) courses.

In 2020, across-sectional study was done at the Tehran Oil Refining Company. The number of samples was 200, according to Cochran's formula. The major data gathering technique was a 20-item questionnaire created by the researcher. The multivariate regression model was used to analyze the study data, which was done with IBM SPSS software.

The questionnaire's content validity and reliability were estimated to be 0.83 and 0.929, respectively. 3.68±0.22 was the atmospheric indicator that proved effective in transferring learning and providing a way to increase the effectiveness of HSE training. The climate index affecting the transfer of learning had a significant link with the parameters of work experience (p = 0.02), education(p = 0.03), and kind of employment (P = 0.01), according to the results of linear multivariate regression analysis.

The atmospheric index influencing learning transfer and proposing a solution to increase the efficacy of HSE courses in the Tehran Oil Refining Company was deemed favorable. The outcomes of this study revealed that supervisors on job units in this business provide a supportive environment that is perfectly aligned with encouraging learners to enroll in training courses.

Enhancing the level of resilience to crisis is one of the key goals in medical environments. Various parameters can affect resilience to crisis. This study was designed and conducted to analyze resilience to crisis in medical environments based on crisis management components.

The present study was a cross-sectional, descriptive-analytical study that was performed in 2020 in 14 hospitals and medical centers. Based on Cochran's formula, the sample size was estimated to be 343.5. Data collection in this study was performed using a 44-item crisis management questionnaire of Azadian et al. (2016). The components of crisis management in this questionnaire included management commitment, error learning, culture learning, awareness, preparedness, flexibility and transparency. Analysis of study data was done based on the structural equation modeling approach using IBM SPSS AMOS v. 23.0.

The means of age and work experience of the participants in this study were 37.78±8.14 and 8.22±4.47 years, respectively. resilience to crisis index based on crisis management components was estimated 2.96±0.87. The results structural equation modeling of resilience to crisis showed that all components of crisis management have a significant relationship with this index (p <0.05). The highest and lowest impacts on resilience to crisis index were related to Preparedness (E=0.88) and Transparency (E=0.60). Goodness of fit indices of this model including RMSEA, CFI, NFI and NNFI (TLI) are estimated 2.86, 0.071, 0.965, 0.972 and 0.978, respectively.

The findings of the study indicated that the resilience to crisis index was moderately evaluated in the medical environments. Furthermore, based on the results of structural equation modeling, in prioritizing measures to increase the level of resilience, the impact of each component on the resilience to crisis index should be considered.

 Chemical process industries are among the most important industries which have been faced with many catastrophic accidents. This study aimed to analyze the root causes of the accidents in a chemical process industry.

This study has been implemented in a chemical process industry using Tripod Delta technique in 2019. The implementation steps included forming an accident analysis team, reviewing accident documents and records, compiling Tripod Delta questionnaires, and determining the general failure types (GFTs) involved in the accident.

The results showed that procedures (PR), training (TR), and maintenance management (MM) have the most discrepancies in the accident (213, 212, and 202 respectively).In addition, communication (CO), hardware (HW), and design (DE) have the least discrepancies (33, 40, and 76 respectively).

The findings indicated that training, standard, and safe procedures as well as maintenance management are determining factors in preventing industrial accidents. Therefore, in order to reduce the accident rates in industries, close attention should be paid to these areas and its indicators with a process and risk based approach.