مهران قلعه نوی

goal of safety activities are focused on reducing the risk of the workplace, and very few activities are focused on increasing the organizational culture and safety. The purpose of this study is to examine the relationship between organizational culture and safety in one of the largest automobile companies in the country.

Materials and Methods:

 The current research was a correlational study that was conducted at a certain point in time in 2015. The statistical population of this research is made up of the employees of paint and body salons, 255 people were selected using the limited population sampling formula. The data collection tool in this research is the questionnaire, which has three sections of information, which respectively included questions related to demographic characteristics, organizational culture, and employee safety culture. In order to investigate the organizational culture, a 29-question questionnaire was considered based on the ten indicators of the Robbins model (Robbins, 2001), which was validated and reliable in previous studies, and a 37-question organizational culture questionnaire was used for organizational culture.

Among the indicators of organizational culture in the studied organization, the control index (with an average score of 10.76) had a better status than other components and the reward system index (with an average score of 6.24) had an unfavorable status compared to other components. Also, in terms of safety culture, with an average of 130, it indicates a positive safety culture in this company. The cultural relationship between safety and some dimensions of organizational culture was significant.

Oxygen therapy is one of the integral parts of a hospital, which has been introduced as a therapeutic use of oxygen and any human error in this field can have disastrous results. The purpose of this research is to analyze the risk of the oxygen supply system of one of Qazvin hospitals using the method of studying risk and human performance.

In this research first, study team members were selected according to the purpose of the study to benefit from their experiences in discovering the possible situations of human operation risks; then according to the field visits, interviews and existing documents, the duties of people related to the objective were analyzed by the Hierarchical Task Analysis technique. Then, the types of errors and causes were identified and proposed controls were presented to reduce unacceptable risks.

According to the 75 scenarios obtained from the method used, the results indicate that failure to perform job duties with 32.42% as the most important parameter, with the most important factors of human error such as memory slip (38%) and heavy workload (31%) plays a role in the three categories of consequences of fire, explosion and reduction of oxygen sent to the departments.

This method can be used to reduce the risk of fire, explosion and reduce the oxygen pressure sent to different units by using the techniques of improving working conditions, changing the way of training, equipping the oxygen concentration detection sensor and using the liquid oxygen tank

Fire in hospitals and medical centers can lead to unfortunate and dire accidents due to the immobility of most patients, the presence of expensive medical equipment, and the essential role of hospitals in providing health services to people. This study aims to increase fire safety in a healthcare training center in Qazvin.

The latest NFPA 101A was used for fire risk assessment in seven departments of an educational hospital in Qazvin City in 2021-2022. The study calculated the residential risk factor for residents of each area, examined fire safety parameters and determined their risk factor, calculated the obtained points of the area under evaluation, determined the minimum required points in different areas of fire safety, and estimated the fire risk level.

  ICU 1 and 2 departments, CCU 1 and 2, central warehouse, pharmacy warehouse, and hospital facilities were selected for fire risk assessment. The ICU building had the best condition with a total fire safety point of 21.1. The facility building, with a total fire safety point of -14.5, was in the worst condition.

The results showed the need for more attention from researchers to conduct studies in outdoor environments, in various parts of the country, on development and validation of novel heat stress indices, and on implementation and evaluation of control measures in environments with high heat stress.

Iran has the most extensive maritime transport fleet in the Middle East, with 2700 km of water border with other countries in the region. However, the complex and hazardous marine environment has turned this advantage into a disadvantage. On the other hand, technological advancement has added to the complexity. Thus, new accident analysis tools should be developed to bring unity to marine casualty analysis and improve the analyst’s power of discovery from incident information. The current project aims to develop a specialized AcciMap-based marine accident investigation method.

The primary stages of this applied descriptive study include data collection, method development, and validation. The necessary information about the factors leading to marine accidents was initially gathered through a review of previous studies, expert interviews, and analysis of actual cases. The AcciMap technique was then partially developed, and marine experts approved the designed model.

This study’s results included an AcciMap model established on three levels: external influences (national and international), intra-organizational factors, and environmental/individual conditions and individual activities. Whereas external factors (international and national) are categorized into three main layers, two sublayers, and 13 secondary sublayers, intra-organizational factors are categorized into two main layers, 11 sublayers, and 35 secondary sublayers, and environmental/individual conditions and individual activities are organized in one main layer, three sublayers, and 11 secondary sublayers.

The developed approach can identify flawed levels and determine who is responsible for implementing corrective action. Because it includes emerging components that are effective in accidents, the method used in this study can better examine data from marine accidents.

The coronavirus spread faster in crowded public places. Thus, industrial workers are more prone to COVID-19 infection. The present study aims to evaluate the prevalence of COVID-19 and its association with adherence to sanitary protocols in detergent industries in Alborz province, Iran.

Given a 95% confidence interval, a 3% allowable error level, and an 11% prevalence rate, a total sample of 552 from seven industrial units were recruited. Demographics and COVID-19 infection data were gathered using a questionnaire. The level of adherence to sanitary protocols was assessed using a checklist approved by the Ministry of Health.

The average age of subjects was 35.17±7.27 years, and 14.3% were female. The level of adherence to sanitary protocols was 94.36±6 percent in each industry. The prevalence of COVID-19 infection was 33.5% in detergent industries, with the highest rate in the packaging unit (42%). The results suggested that coronavirus prevalence was associated with education level, history of an infected family member, exposure to crowded places, and disinfection (p<0.05).

The contact history of workers with an infected family member plays a significant role in their coronavirus contraction. Enhancing air-conditioning systems, social distancing in working stations, evaluating the workers with a history of contact with infected family members, and developing management measures, including educating their families and furloughing workers in contact with infected family members are integral for the prevention and control of the epidemic in industries.

Patient safety culture is essential in preventing patient injuries in hospitals. Safety attitude is one of the valid tools used in assessment of safety culture among nurses. The purpose of this study was to investigate the nurses safety attitude and also understanding the effect of demographic characteristics, work shifts, and job demands on that. This cross-sectional study was conducted in 325 nurses in Babol, north of Iran, 2016.  Demographic and organizational information were recorded. The Safety Attitude Questionnaire (SAQ) and Job Content Questionnaire (JCQ) were used. Data analysis was done using regression analysis in SPSS V24. The average values for psychological and physical demands of nurses were 32.7±9.4 and 8.8±2.8, respectively. According to the SAQ, the dimensions of stress recognition (73.6 ±17.9) and perception of management (48.8±16.2) were found with the highest and lowest mean scores, respectively. Also, regression model showed the wards, psychological demands, and physical work demands as the predictors of nurses attitude toward safety (P <0.05). According to this study, reducing the psychological and physical demands associated with work could improve safety attitude in nurses. Also, nursing managers should provide nurses with some training courses on controlling unsafe behavior and safety attitudes.

Present study aimed to determine rate of symptoms of the musculoskeletal disorders in different body regions and ergonomic assessment of the workplace and their risk factors among faculty members and other staffs.
This cross-sectional study was conducted on all 59 teachers and employees in School of Public Health, Qazvin University of Medical Sciences. Nordic questionnaire was used to determine prevalence of musculoskeletal disorders in various organs of the body. To assess workplace risk factors standard and integrated check list of office conditions was used.
Within the last year the highest prevalence of skeletal disorders was observed in hip (85.7 %) and neck & shoulders (64.3%) among academic members and back (60%) and wrist & neck (44%) among other staffs. Statistically significant associations were found between the prevalence of musculoskeletal disorders in neck and work experience among staffs and between the back disorders and working hour per day (p The prevalence of musculoskeletal disorders is high in hip regions of faculty members and lumbar region of other employees. Therefore, implementation of workplace ergonomics intervention seems necessary. Designing workstations according to ergonomic principles, training of teachers and employees on principles of ergonomics, job diversity, and soft exercise at certain intervals can be components of these programs.

The musculoskeletal disorders consist dominate part of occupational disease. Work with Portable Computer also can became one of the predominant cause of the musculoskeletal disorders. Therefore aim of this study was assessment of musculoskeletal disorders prevalence rate among portable computer using students and assessment of pain rate in different body regions and identify of more exposed organs. This was a cross – sectional expression study that carry out on total students of the Qazvin Health collage (184 persons).To determine the prevalence of disorder from repetitive movements of the different organs of the body was used of kernel questionnaire as well as computer related musculoskeletal disorders questionnaire was used. Based on computer related musculoskeletal disorders questionnaire, most people felt pain in the right shoulder (23.9). Based on kernel questionnaires Upper arm, right neck, right hip and lower extremities, respectively, with 2/29% 3/30%, 2/8% have most pain. Less using of tables and chairs for working with laptop is a common ergonomics problem among students. The use of tables and chairs for work with laptop and a using of external keyboard to reduce stress on the was proposed.

Treatment of waste air containing volatile organic compounds (VOCs) using cheap and environmentally friendly methods is one of active fields in air pollution control. The aim of this study was to treat air containing triethylamine (TEA) vapor using biotrickling filter inoculated with microbial species decomposing TEA. This experimental study was conducted in the School of Health affiliated to Qazvin University of Medical Sciences in 2014. Biotreatment was performed with biotrickling filter inoculated with microbial species decomposing TEA for two months. The biotrickling filter was set up with air containing TEA as the sole source of carbon, at Empty Bed Residence Times (EBRT) of 36 sec, and inlet concentration of 84 ppm. Data were analyzed using descriptive statistics. Treatment of TEA contaminated air was made after an adaptation period of 11 days. Despite an increase in mass loading to 111 g/m3/h, TEA was eliminated with 109 g/m3/h capacity and 94-100% removal efficiency by zero order kinetics. Elimination capacity and removal efficiency were close to each other and confirmed109 g/m3/h as loading region with critical elimination capacity. With regards to the results, it is possible to treat air containing TEA vapor in biotrickling filter.

Despite the global awareness of sustainable use of ergonomics in reducing musculoskeletal disorders and increase productivity at work، Ergonomic considerations in developing countries is not taken seriously. This study analyzed musculoskeletal disorders and ergonomic assessment of manufacturing companies was carried out in Qazvin، Alborz Industrial City. This Cross sectional descriptive study examined 35 workstations. Data collection consisted of interviews with individuals who completed the Body Map questionnaire and were analyzed by SPSS 17 software. Then the results of imaging workstations and direct observation، and by determining what software Win owas، Nexgen was analyzed. 71 questionnaires completed and analyzed were the results showed Body condition of individuals works standing 40 percent and 29 percent are repetitive. On the basis of studies conducted in the organs under consideration، respectively، in the middle back pain، right leg and left leg are most common. The relationship between variables was evaluated with musculoskeletal disorders and pain in the right shoulder just was significantly associated with the job. The relationship between age and pain in the upper back، between the fingers of the left hand and left leg are significantly. (P <0. 05). Significant relationship between demographic variables and other musculoskeletal disorders not found. It is the job of workstations represent filters، engine، chassis welding and molding have more risk factors for musculoskeletal disorders than other jobs.

The raise of environmental and occupational health graduates followed by scarce employment has developed a concern about these disciplines and future career among students. This study was performed with the aim of determining environmental health and occupational health students'' attitude toward their disciplines and future career in Qazvin University of Medical Sciences in 2012.

All environmental and occupational health freshmen of Qazvin University of Medical Sciences studying for a segregated or integrated Bachelor’s Degree in 2012-2013 participated in this descriptive cross-sectional study through census (n=156). The data gathering tool was Minnesota University questionnaire including 17 questions، using a Likert scale. Data were analyzed using t-test and chi-square test.

The mean and standard deviation of environmental students'' attitude toward their future career was 50. 7±9. 7 (out of 85). Also mean and standard deviation of occupational students'' attitude was 53. 3±6. 9. Mean and standard deviation of environmental health students'' attitude in men was 58±8. 4، But these parameters in women were 49. 7±9. 7. On the other hand، mean and standard deviation of occupational health students'' attitude toward their future career was 53. 3±7. 6 in men and 53. 2± 6. 7 in women.

The mean score for attitude of environmental health under investigation toward their discipline and future career was lower than acceptable level which demonstrates lack of desirable attitude toward future career among students. The authorities should pay special attention to creating jobs for these students. Curriculum improvement should also be seriously considered in order to increase the students’ competence. Also، informing students about university disciplines before they take the entrance examination، and supporting the students financially may prove helpful in improving their attitudes.

Noise pollution in cities is one of the most important health problems which is growing in severity. To determine the level of equivalent noise and traffic sound in various cities of Qazvin province. This cross-sectional study was conducted in the winter of 2010 in Qazvin. Measurements were performed by the sound level meter 1353H (TES، Taiwan). The main streets and intersections on the city maps were considered as measuring stations. The levels of equivalent noise، statistical noise، and traffic noise were measured based on the ISO 1999 method approved by the Environmental Protection Organization. Data were analyzed by one side، two side، paired t-test. Of total measuring stations، 63% were found to have equivalent noise level higher than the standard recommended for residential-commercial areas and 24% within the standard levels. In all cities under study، the equivalent noise level was higher than that recommended for residential-commercial areas. The daily equivalent of noise index did not change at different times، indicating a uniform sound level from traffic and acoustic fields.

Fire and explosion hazards are the first and second of major hazards in process industries, respectively. This study have been done to Assessment of fire and explosion hazard and hazard Classification. In this quantitative study process unit has been selected with affecting parameters on fire and explosion hazard. Then, it was analyzed by DOW’s fire and explosion index(F&EI).Technical data were obtained of process documents and reports, fire and explosion guideline.After calculating of DOW’s index, more risk and less risk process unit determined. Stripper column with rank of 226 and Naphta tank with rank of 64 were determined as the most disaster and less disaster process units.Amount of hazard was determined in all columns sever(F&EI>158), Magnaformer reactor and gasoline furnace heavy(127< F&EI≤158) and Hydrodealkylation reactor and naphta tank moderate(61< F&EI≤96). Radius of exposurer was calculated 57 metersfor Stripper column. Fire and explosion hazard at reactors was less than columns.Gas process units were safer than liquid process units. F&EI is a proper technique for hazard assessment and loss estimation of fire and explosion in process industries.Also,It is an important index for detecting high hazard and low hazard areas in an industry.At this technique, all of factors affecting on fire and explosion hazard was showed as index that is a base for judgement risk class.

Background and aims Control room is a palpitating heart of a system, and any error in operator`s duties have irreparable consequences. Nowadays, in many work places such as nuclear industry, military and chemical parts human error can cause catastrophic event that led many events around the world, so the purpose of this study is analyzing human error in a utility unit control room of a Petrochemical Company using HEART method.MethodsData collection was done by direct observation methods, interview with "Bordman", senior shift, boss of Fuel vapor, related experts and analysis of previous incidents that occur. Then job analysis and human error identified respectively by HTA and TRACEr technique. Additionally, the error probability determined with HEARTtechniques which is a one of the tools of human reliability assessment.ResultsThe most important factors in incidence of human error at the control room operators were: fatigue, experience, consciousness, complexity of information, focus error and Error producing conditions were diagnosed: mental stress, High work load, focus, clear guidelines, lack of training and the task adaptation,. The most calculated likely error in the duties: reload bugs, boiler commissioning, control of production, maintenance, warning signs control.Conclusionthe results can be acknowledged that supervisor duties "Nobatkar" control room because of a high sensitivity range of error likely to have occurred and solutions must be proposed. This technique for this group should be priorited.

Background and Objectives Anthropometry data compiled from body dimensions of female high school students are used to optimize the design of desks and chairs for the classrooms of these students. It is necessary to design suitable desk/chair based on anthropometry data in order to reduce musculoskeletal visual circulatory problems and bad posture during long hours of studying. The goal of this study is to design desks/chairs based on the standard BS 5873 using the body dimensions of 240 female high school students. Methods 240 female students between the ages of 15 to 17 years old were selected from six different high schools in district 2 of city of Qazvin in Iran. Data for this study were gathered using an interview method and anthropometry measurement devices. Results Eighteen body dimension parameters of 240 female high school students were obtained. The collected data were analyzed and compared to the standard using SPSS methods. The participant students were divided into 2 groups and customized desk/chair designs were built to fit their body dimensions. Conclusion There is a significant difference between each customized desk and chair dimension and standard dimensions used in the industry with an exception of the heights of these designs. We suggest that customized designs based on body dimensions promote correct posture comfort and health.