1.Factors Associated with Quality on Sleep of Subway Workers by Shift-Work.
Min Gi KIM ; Won Chul LEE ; Young Min LEE ; Jae Hong RYOO ; Hawn Cheol KIM ; Seung Won YOO ; Kyung Han NAM
Korean Journal of Occupational and Environmental Medicine 2008;20(4):326-334
BACKGROUND: The sleep quality of subway drivers who work in the dark underground with an rotating shift system is generally poor, which can degrade the quality of a worker's life. This study examined the relationship between the sleep quality of subway worker and shift work by comparing three shift systems (rotating shift system, a three day shift system, and no-shift system). METHOD: Questionnaires including The short form of the Korean Occupational Stress Scale (KOSS), Pittsburgh Sleep Questionnaire (PSQI), the worker's age, gender, job type, accident, near miss and shift system were given to a total of 1010 workers. The results of 759 qualified questionnaires (75.15 %) were analyzed using the SPSS (ver 12.0) program. RESULT: The highest level of job stress was found among those working a rotating shift system followed by three shift system and no-shift system. The mean sleep quality score in the rotating shift workers was 5.1 (SD+/-3.2), which was greater than the sleep symptom score (5). 34.8% of rotating shift workers suffered from sleep symptoms. The sleep quality score by shift-work was significantly different. High job demand, strong external locus control, the experience of a near miss or an accident in the workplace during previous year has an adverse affect on the sleep quality. The sleep quality improved in case of a change into a no-shift system or a strong internal locus control. CONCLUSION: A rotating shift system is more harmful to the quality of sleep in subway workers than a 3 shift system or no-shift system. In addition, job stress, personality, near miss and the experience of an accident affect the sleep quality of subway workers.
Questionnaires
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Railroads
2.Comments on Jo and Colleagues' Paper (2010) "Association of Subway Driver's Depressive Symptoms and Experience of Work-Related Problems".
Epidemiology and Health 2011;33(1):e2011002-
No abstract available.
Depression
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Railroads
3.Current status of korean disaster medicine: analysis of railroad collapsed accident of gupo.
Journal of the Korean Society of Emergency Medicine 1993;4(2):40-46
No abstract available.
Disaster Medicine*
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Disasters*
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Railroads*
5.Assessment of Post-Stroke Cognitive Dysfunction Using 3-Dimensional Virtual Reality Program.
Deog Young KIM ; So Young JOO ; Chang Il PARK ; Tae Hun PARK ; Ki Deok PARK ; Kang Jae JUNG ; Jang Han LEE
Journal of the Korean Academy of Rehabilitation Medicine 2009;33(1):12-20
OBJECTIVE: To test the feasibility of newly developed 3- dimensional virtual reality (VR) program for assessing the post-stroke cognitive dysfunction. METHOD: Thirty five post-stroke patients and twenty normal healthy subjects were recruited in this study, and post-stroke patients were classified into three groups according to the severity of cognitive dysfunction. We developed three dimensional virtual reality program to assess the cognitive function with virtual subway environment from taking a subway to arriving at one's destination. The total score, number of success and cue were obtained during completing virtual tasks. We investigated the test-retest reliability, and the parameters of the 3-dimensional VR program were compared with Korean Mini-mental status examination. RESULTS: All parameters of the VR program were significantly correlated with MMSE score (p<0.01), and showed the significant difference between patient subgroups and control group (p<0.05). The test-retest reliability of the VR program was significantly high (p<0.01). CONCLUSION: Three dimensional virtual reality program may be helpful to assess the cognitive function in patients with stroke.
Cues
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Humans
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Railroads
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Stroke
6.Progress of research on evaluation indicators and standards about high-speed train comfort.
Chinese Journal of Industrial Hygiene and Occupational Diseases 2023;41(3):231-236
The rapid development of high-speed railway in China has proposed higher requests for the comfort level of high-speed trains. However, there is no internationally unified evaluation criterion for high-speed train comfort currently, which therefore substantially affects the comparability and standardization of research results for high-speed train comfort. This paper systematically reviews the research literature about evaluation indicators and standards related to high-speed train comfort, and finds that there is currently no unified definition, evaluation indicators, as well as evaluation criterion for high-speed train comfort. Most current evaluation criteria are based on a single indicator. Some indicators are simultaneously developed by different apartments and differ between each other, and there is no comprehensive indicator or criteria for high-speed train comfort, restricting the comparison of high-speed train comfort across regions. It is recommended that the administrative department of high-speed railroad in China should organize experts to establish a unified definition of high-speed train comfort, comprehensive evaluation indicators and relevant judgment criteria for high-speed train comfort, in face of the rapid development and globalization of high-speed trains.
China
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Railroads
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Reference Standards
8.Narrative Analysis on Survivor's Experience of Daegu Subway Fire Disaster: The Hypothetical Suggestions for Disaster Nursing Practice.
Journal of Korean Academy of Nursing 2005;35(2):407-418
Some fifty survivors participated in the narrative therapy sessions from March 2003 to December 2004, and thirty cases were analyzed using the transcripts. Each participant's surviving story was summarized, and then interpreted and reinterpreted by the survivors themselves in collaboration with the researcher. Thetwo main principles in narrative analysis were hermeneutical distanciation and hermeneutical circulation. RESULT AND CONCLUSION: First, nursing involvement should play active roles from the early stages of disaster incidents. Specifically, emergency nursing and flexible coping plans are to be available according to the specific properties of each case. Secondly, it is necessary to try to understand the extreme emotional experiences of disaster survival. The horror and pain people feel at an incident cannot simply be generalized, and it requires that each case be approached individually to help stop social alienation. Thirdly, more constant and long-term studies are required to set up nursing strategies for disaster survivors. Forming a trustingrelationship with survivors is basic, and formally registering as participants is necessary for continuous interventions. Fourthly, we should deeply appreciate the danger and complexity of modern society and understand the complex nature of disaster. Fifthly, interdisciplinary activities and studies are necessary in combination with various other fields to establish a framework of total nursing care for disaster incidents. Lastly, it is urgently necessary to educate families and friends of the survivors and the society as a whole about life after a disaster.
Survivors/*psychology
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Railroads
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Korea
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Humans
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*Fires
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*Emergency Nursing
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*Disasters
9.Association between Job Stress, Psychosocial Well-being and Presenteeism, Absenteeism: Focusing on Railroad Workers.
Inn Shil RYU ; Dae Soon JEONG ; In Ah KIM ; Jae Hoon ROH ; Jong Uk WON
Korean Journal of Occupational and Environmental Medicine 2012;24(3):263-273
OBJECTIVES: The purpose of this study was to determine the current status of presenteeism and absenteeism among railroad workers as well as to investigate whether or not job stress level and psychosocial well-being status are associated with presenteeism and absenteeism. METHODS: As the cross-sectional design, a self-reported questionnaire using the Korean Occupational Stress Scale(KOSS), Psychosocial Well-being Index(PWI), and Work Productivity and Impairment-General Health(WPAI-GH) was administered to railroad workers. Univariate and multivariate logistic regressions were used to analyze the association between job stress, psychosocial well-being status and presenteeism, absenteeism in 1,099 subjects. RESULTS: Among the study subjects, 52.0% and 22.0% experiened presenteeism and absenteeism, respectively. Job stress level in railroad workers was higher than that in general workers. Multivariate logistic regression with presenteeism as the dependent variable showed an elevated odds ratio of 3.56(95% CI 1.48-8.54) in the highest job stress group, and an odds ratio of 3.20(95% CI 1.94-5.26) in the high-risk psychosocial stress group. There was no significant association between job stress level and absenteeism, whereas weak association between psychosocial stress and absenteeism was found. CONCLUSIONS: Since railroad workers have a high level of job stress and elevated experience of presenteeism, a management strategy is required to control presenteeism and absenteeism in order to promote railroad workers' health and safety.
Absenteeism
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Efficiency
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Logistic Models
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Odds Ratio
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Questionnaires
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Railroads
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Sick Leave
10.Comparison Analysis of Two Different Training Methods for Cardiopulmonary Resuscitation by Laypersons.
Journal of the Korean Society of Emergency Medicine 2013;24(6):656-663
PURPOSE: This study compared the effectiveness and ease of operation of two different training methods, response sequence based training (RBST) and chest compression first training (CCFT), for cardiopulmonary resuscitation (CPR). METHODS: Eighty-five railroad workers were divided into two groups: those who applied the usual CPR training method (response sequence based training, 44 people) and those who applied our CPR training method (chest compression first training, 41 people). The objective skill performances were evaluated by using a mannequin (JAMY-IV RECO, Kyotokagaku, Japan). RESULTS: There was no statistical difference in CPR performance and artificial ventilation success rate between the RSBT group and the CCFT group. However, the artificial compression success rate and compression depth of the CCFT group compared to the RSBT group was statistically higher (p=0.006, 0.001). In addition, the wrong-hand-position rate of the RSBT group compared to the CCFT group was statistically higher (p=0.000). Furthermore, instructor satisfaction with practical training operations in the CCFT group compared to the RSBT group was statistically higher (p=0.001) and instructors reported that students were focused and easily capable of performing the CCFT training method. CONCLUSION: The chest compression first training method is easy to perform and not too complex to operate, making it effective in student performance and instruction. More effective CPR training is expected based on this method.
Cardiopulmonary Resuscitation*
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Education
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Humans
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Manikins
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Methods*
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Railroads
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Teaching
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Thorax
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Ventilation