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43±0.52) ] after intervention were lower than before (P less then 0.01) . Before and after the intervention, the scores of DAP-R scale tended to be death fear dimension and acceptance dimension, the proportion of the death fear dimension was 16.7% (10/60) and 6.7% (4/60) , respectively, and the approaching acceptance dimension was 83.3% (50/60) and 93.3% (56/60) . The proportion of the nurses with scores of SCL-90 scale ≥160 after the intervention was significantly lower than that before the intervention (χ(2)=5.82, P less then 0.05) . Conclusion The mental health of nurses in the operating room participating in organ donation surgery is lower; After intervention, the investigated nurses present improved mental health and positively emotional attitude towards death.Objective To explore the status of job burnout of nurses for orphans and disabled children in Nanjing and its influencing factors, so as to provide reference for promoting the mental health of nurses for orphans and disabled children. Methods From February to May, 2017, a cross-sectional survey was conducted among 236 nurses working in social welfare institutions for orphans and disabled children in Nanjing, using Occupational Stress Indicator (OSI) and Maslach Burnout Inventory (MBI) . It investigated the status of job burnout among nurses of orphans and disabled children, logistic regression analysis was used to explore the effect of occupational stress on the incidence of job burnout of nurses for orphans and disabled children. Results The results showed that the incidence of job burnout was 67.37% (159/236) , the incidence of job burnout was negatively correlated with behavioral characteristics and family support, the incidence of emotional exhaustion was positively correlated with task control and job monotony (P less then 0.05) , and negatively correlated with role ambiguity and job satisfaction (P less then 0.05) . The incidence of depersonalization was negatively correlated with job monotony and peer support (P less then 0.05) . Conclusion The nurses of orphans and disabled children have serious job burnout. Occupational stress factors, personality characteristics and relieving factors have influence on the incidence of job burnout.Objective To investigate the association between occupational stress and carotid atherosclerosis among the workers in a steel plant. Methods In October 2018, a total of 2947 workers from a steel plant, who underwent occupational health examination in the center for occupational health examination from March to May 2017, were selected as subjects. Job Content Questionnaire (JCQ) and Effort-Reward Imbalance (ERI) were used to investigate the job content and the degree of occupational stress. According to the results of carotid artery examination, the subjects were divided into normal carotid artery group with 2013 workers, increased carotid intima-media thickness (IMT) group with 277 workers, stable plaque group with 236 workers, and unstable plaque group with 421 workers. A unified questionnaire was distributed to each group, and related physical and biochemical examinations were performed. A multivariate unconditional logistic regression analysis was performed to investigate the risk factors for unstable plaqn the development of carotid atherosclerosis.Objective To investigate the prevenlence of insomnia on workers and related influcecing factors in chip manufacturing industry. Methods By using cluster sampling method, 2 251 workers in chip manufacturing industry were selected as study subjects. The simple Job Demand-Control model Questionnnaire (JDC) , Effort-Reword Imbalance (ERI) Questionnnaire and Insomnia Symptoms Scale were used to evaluate JDC occupational stress, ERI occupational stress and insomnia symptoms respectively. Results 22.6% (509/2251) workers were found high level of insomnia. The risk factors of insomnia symptoms were high score of effort and overcommitment (P less then 0.05) . The risk of insomnia symptoms in high effort was 1.689 times that of low score (95%CI 1.334-2.138) . The risk of insomnia symptoms in high overcommitment was 1.835 times that of low score (95%CI 1.461-2.305) . The protective factors for insomnia symptoms were women, monthly income of more than 3000 yuan, college dregree or above, high work control and high reward (P less then 0.05) . Conclusion The high scores of effort and overcommitment are the risk factors for insomnia symptoms of employees in manufacture electronic devices. Enterprises should take comprehensive measures to pay attention to the occurrence of insomnia symptoms among employees with high score of effort and overcommitment.Objective To develop an air particulate protective mask filter test device that can simulate the dynamics process of human breathing. Methods The new device used two air pumps working alternately to simulate the dynamics process of human breathing. On March 4th to 17th, 2017, the new device and the traditional one-way airflow mask filtration test device were used to measure the internal and external particle levels of 39 masks of 13 models of 6 brands, and then the filtration efficiency of the mask was calculated and the test results were compared. Results For the mask without breathing valve, there was no statistically significant difference between the filter efficiency test results of the new device and the traditional unidirectional airflow filter performance test device (P&gt;0.05) . For masks with breathing valves, the new device detected that three of them had lower filtration efficiency (99.50% vs 98.63%, P less then 0.01) . [https://www.selleckchem.com/products/pf-07265807.html selleckchem] After sealing the mask breathing valve with glue, the filtering efficiency of the mask with a breathing valve detected by the new device significantly improved (98.63% vs 99.50%, P less then 0.01) . Conclusion This new device can simulate the dynamic process of human exhalation and inhalation, and measure the filtration efficiency of the mask. For masks with breathing valves, the new device makes it easier to detect the decrease in the filtering efficiency of the mask caused by the breathing valve.Objective To investigate the features, changing trend, and rules of pneumoconiosis in Jiangsu Province, China, as well as the health status of patients with pneumoconiosis. Methods From July to October 2019, the patients with pneumoconiosis, reported up to the end of 2018 in Jiangsu Province, were enrolled as respondents, and follow-up and retrospective investigation were performed. A total of 24405 patients with pneumoconiosis were investigated, and related data were collected from the monitoring system of cause of death for residents, pneumoconiosis network reporting system, occupational disease diagnosis institution, management institutions for the reporting of occupational diseases, and related residents' committee or village committee. The patients with pneumoconiosis, who had been reported, were followed up by telephone or on-site visit to obtain the information on their conditions. A descriptive analysis was performed for age of onset, working years, sex, category of industry, type of pneumoconiosis, annual disease onset, geographic distribution, and medical security.