نشریه طب کار
سال ششم شماره 3 (پیاپی 16، پاییز 1393)

The prison is one of environments that its staff always deal with stress and different sources of stress. Exposure to stress، causing deleterious effects on physical and mental health of staff and productivity of organizations. The aims of this study was survey of stress and work-related stressors among prison staff.

The subjects were 177 employees of the Prison staff of Ilam province that was selected using census sampling. For survey of job stress and work related stressors HSE stress questionnaire was used. Data was analyzed by using of SPSS V20 and multivariate test، Pearson correlation coefficient and ANOVA.

Among the various prisons، job stress in correction and rehabilitation center was more than others. As well as work-related stressors were higher among this prison. Based on degrees of job stress، jobs from highest to lowest، including Healthcare، protection unit، Office، Social، and correctional officers. Between the stressors، job control with type of prisons and jobs، participant support with sex، relationship with sex and type of prisons، role with age، experience، BMI، and job Were statistically significant.

Based on results، in the prison staff، the type of jobs and work environment have an impact on job stress، but personal characteristics has no effect on the job stress.

Decontamination is a process that infectious organisms are removed by physical and chemical methods. The advantages and disadvantages of each of these values can lead to a clear viewpoint of an appropriate sterilization process. The aim of this study was to investigate the effectiveness of 70% alcohol، Deconex (SOLARSEPT) and H2O2، also the additive effect of supplemental UV light on decontamination of laboratory items. The rates of contaminations of laboratory equipment’s and surface areas were assessed before and after exposure with mentioned chemicals and in the final stage by UV light. Overall the 12 laboratory equipment and the 7 office instrument were evaluated. The UV light was used for 40 min from distance of 2. 5 meter. Then، all points were sampled after decontamination and the microbial plates were incubated for microbial colony counts after 48h. The number of colonies before disinfection stage was 26. 43 colonies per unit (cfu) in administrative and 15. 17 in laboratory equipment. After using UV، H2O2، ethanol and Deconex، the numbers of colonies were reduced to 2. 57، 0. 4، 1. 29 and 0. 71، respectively (p <0. 05). Simultaneous use of H2O2 and Deconex with UV light reduced the numbers of colony to 0. 14 and 0. 17. In the administrative equipment’s، the number of colonies after H2O2، ethanol، deconex and UV light were 0، 1. 67، 1. 25 and 0. 83، respectively. Also، combination of UV with deconex and H2O2 reduced the colony formation to zero. H2O2 was effective on reducing the number of colonies. Due to low toxicity، it is recommended to be used in infertility lab. We must make sure that application of disinfection chemicals will not interfere with the laboratory experiments and limits the threat to health of staff.

By considering the development of power plants in the country and identifying potential hazards in the mentioned work process، this study intends to change analyzes before and after the implementation of integrated management systems to control the consequences of hazards by this systematic methods. This study is a descriptive - analytical in type of before and after that during the years 1383 to 1390 in Yazd combined cycle power plant is accomplished. Variables are hour of work، days of lost work، the coefficient of accident frequency rate (AFR)، coefficient of accident severity rate (ASR)، the coefficient of accident frequency severity rate (FSI)، the coefficient of T Safe (safe t score) and the coefficient of incident rate (IR) and frequency rate (FR). Among different jobs، the highest number of accidents was related to workers and the lowest number of incidents was related to engineers and experts. The highest rate indicators of the frequency، intensity، intensity - frequency and frequency rate and incident rate coefficients related to the year 1383 (the year before the implementation of integrated management systems) and the highest accident severity index was related to year 1387. Meanwhile the lowest Value of all indicators belongs to year 1390. According to the safe T coefficient، until 1388، changes have been Significant and the situation has improved and significant in the years 1390-1389 (safe t score <-3). Results have showed that the implementation of safety programs has a positive impact on reduction of accident indicators and on various situation is used by coefficients that change trend will show better than control chart.

Bakground: Professional nursing practice، especially in the workplace، is the organizational characteristics. this is lead to Absorption and retention of nurses and is effective in patient outcomes. Autonomy، Control Over Nursing Practice and Nurse-Physician Collaboration is component of Professional nursing practice. Structural Empowerment is one of the factors that reported was related to this. empowered work place can affect in nurses ability to act professional، providing well care for patient and other positive organizational outcomes. Methode: This research is descriptive- analysis and Cross sectional study. The study of nurses in Hasheminejad Hospital has formed. The main tool of data collection is questionnaire therefore to measure Professional nursing practice used Nursing Work Index–Revised and to measure Structural Empowerment used the effectiveness of empowering work conditions structural questionnaire - 2. Its validity have been approved by the relevant experts، and its reliability is demonstrated with alpha Kronbakh. For data analysis، and is used Spearman correlation test multivariate linear regression analysis. Professional nursing practice and Structural empowerment has had a positive significant relationship. (P< 0. 01) also three sub scale of Professional nursing practice include Autonomy، Control Over Nursing Practice and Nurse-Physician Collaboration has had a positive significant relationship whit Structural empowerment. (P< 0. 01) Although Hasheminejad Hospital had gained 60 percent of score in Professional nursing practice and its subscales، but needed to plan for promote Professional practice، therefore nurses and patient used from its positive outcomes in hospital. That’s better work place empowered structural.

Drivers with obstructive sleep apnea (OSA) are at 2 to 3 times increased risk of being involved in motor vehicle crashes. Also sleepiness and low sleep quality is a major contributing factor in the frequency of highway vehicle crashes. This study is aim to assessment of correlation among traffic accident with drivers with high risk of OSA and sleep quality. this article was studied among 214 truck driver in Transportation Company in Qom province. The drivers filled out demographic questionnaire، Berlin and Pittsburg questionnaire about risk of OSA، sleep quality and questions about history of car accident and it’s frequency in previous 5 years. For analysis of qualitative parameters، we applied from chi-square. Data analysis was done in SPSS and P value below than 0. 05 was significant. mean age was 42. 15 years، 19. 6% had poor sleep quality and 23. 8% (n=51) had risk of OSA. This article showed significant difference among driver accident with sleep quality and risk of OSA (P=0. 034 and p=0. 004 respectively). Also there were prominent correlation between sleep quality with sleep duration and night driving (p<0. 001). according to this data، risk of OSA and poor sleep quality in drivers are high and attention to this items help to decrease frequency of traffic accidents.

Empowerment and training are so delicate and important factors via that human capital changes in to sustainable capital. Retention and development of labor needs to learning and use the safety and agricultural professional healthy receptions in risky agricultural situation. The main purpose of this study was to analysis the effectiveness of safety and agricultural professional healthy courses which carried out for farmers. First step of this study was survey about farms educational needs by descriptive - survey method in non experimental research. Effective assessment step done by experimental method with control and experimental groups. Statistical population consisted of 213 farm families from Mahidasht who 140 families selected as sample base on Morgan Sampling table and after need assessment 61 farmers participated in second step of research (experimental plan). Research instrument was questioner that its'' Reliability confirmed by Choronbach Alpha coefficient calculation (it was 0. 77) and questionnaire''s validity confirmed by experts (content validity). Data were analyzed by t and F tests in SPSS 11. 5 software. Results showed that the mean of the pretest and posttest of experimental group relatively was 6/62 and 18/88. Also Results of t tests showed there was significant difference between pre-test and post - test in examination group which shows the relative effectiveness of the educational course. According to the results، there was significant difference between score of farmer''s knowledge before and after of educational course. Therefore it is necessary to maintain the desired level of farmer''s knowledge to pay more attention to the education and with training courses awareness of farmers can be promote.

One of the most main jobs in the automotive industries is assembly that its activities include hand motions، navigation of pieces and using controlled forces for joining of them together. Awkward posture is one of the most important risk factors in incidence of musculoskeletal disorders. There are different methods to assess those factors. This study was conducted to illustrate the correlation between the results of MFA method and RULA in the assessment of musculoskeletal disorders risk. In this cross-sectional study 37 jobs were selected as a sample by using of Cochran formula. In this study، 80 postures were assessed by using of two mentioned methods to determine the musculoskeletal risk level. The results of MFA method indicated that 17. 5%، 11. 3% and 7. 5% of jobs in shoulders، low back، wrist and fingers were sequentially in “very high” level of modified actions preference. On the other hand، the results of RULA assessment pointed out that 46. 3% of jobs were in level 3 of modified actions and 38. 8 of them were in level 3 of those actions. Analyzing of data by using of Spearman test displayed that there is significant relationship between RULA scores of shoulders، body and neck with the level of modified action in MFA method (P-value≤0. 05) and sequentially، the correlation coefficients were 0. 782، 0. 787 and 0. 8. In general view، there are many similarities between two methods in both the way of study and the final assessment; however، one of the main differences of them is that; the results of MFA method are more reliable when all parts of body involve in physical activities. In addition، in MFA method، the details of body’s limbs are assessed more than RULA method.