• Anxiety and mood
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• v.14 no.1
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• pp.7-13
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• 2018

Objective : To determine the association between occupational stress and disordered eating problem in Korean female employees. Methods : We studied 1,452 female employees who attended mental health screenings. Using the Korean Occupational Stress Scale-Short Form (KOSS-SF) and 26-item Korean version of Eating Attitude Test, occupational stress and disordered eating problem were evaluated, respectively. Sociodemographic and clinical characteristics of those with disordered eating problem were examined. Multiple logistic regression analysis was performed to determine which subscale of KOSS-SF was associated with disordered eating problem. Results : Disordered eating problem was associated with interpersonal conflict [odds ratio (OR) 1.882, 95% confidence interval (CI) 1.138-3.112] among various kinds of job stresses. Lack of reward (OR 7.164, 95% CI 1.139-45.043) and insufficient job control (OR 1.953, 95% CI 1.119-3.411) were associated with disordered eating problem in the underweight and normal weight group, respectively. Conclusion : There is an association between occupational stress and disordered eating problem among Korean female employees.

• Anxiety and mood
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• v.13 no.1
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• pp.32-38
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• 2017

Objective : Several recent studies determined the associations of job stress with depression and suicidal idea, but the association between the number of job stress components and depression remains unclear. In the present study, we investigated the associations of the number of components of job stress with depression and suicidal idea. Methods : We studied 194,226 participants who attended employee health screenings from January to December, 2014, and completely answered all the questionnaires, including the short form of Korean Occupational Stress Scale (KOSS), the Center for Epidemiologic Study-Depression (CES-D) and suicidal idea. The presence of clinical depressive symptoms was defined as a CES-D score of ${\geq}21$. The subjects in the highest quartile of each subscale of KOSS were considered as suffering from each component of job stress. Chisquare tests, t-tests and logistic regressions were performed to compare study outcomes between groups. Results : When we included all seven components of job stress, there was no significant association of the number of the components with depressive symptoms, or suicidal idea. However, the prevalence of depressive symptoms and suicidal idea was increased only in three occupational stress subscales including job demand, job insecurity and occupational climate. When we analyzed only these 3 components of job stress, the number of job stress subscales was significantly associated with depressive symptoms and suicidal idea, even after adjustment for sex and age. Conclusion : The number of components of occupational stress was associated with depressive symptoms and suicidal idea, only in the related components.

• Journal of the Korean Society of Propulsion Engineers
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• v.19 no.2
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• pp.46-54
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• 2015

Nitrous oxide is known as green and safe propellant, and can be supplied by its own vapor pressure. So, many liquid propulsion research institutes and university laboratories use nitrous oxide as oxidizer of experimental liquid rocket engine. However, the unknown explosions occurred twice during hot fire experiments using subscale ethanol/nitrous oxide thruster. In this paper, we surmised that the explosions were caused by the decomposition of nitrous oxide in the injector body and the recondensation of nitrous oxide. Improvement and the safe handling methods are suggested.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.29 no.4
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• pp.150-160
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• 2018

Objectives: This study investigated the effect of social skills training (SST) on facial emotion recognition and discrimination in children with attention-deficit/hyperactivity disorder (ADHD) and autism spectrum disorder (ASD). Methods: Twenty-three children aged 7 to 10 years participated in our SST. They included 15 children diagnosed with ADHD and 8 with ASD. The participants' parents completed the Korean version of the Child Behavior Checklist (K-CBCL), the ADHD Rating Scale, and Conner's Scale at baseline and post-treatment. The participants completed the Korean Wechsler Intelligence Scale for Children-IV (K-WISC-IV) and the Advanced Test of Attention at baseline and the Penn Emotion Recognition and Discrimination Task at baseline and post-treatment. Results: No significant changes in facial emotion recognition and discrimination occurred in either group before and after SST. However, when controlling for the processing speed of K-WISC and the social subscale of K-CBCL, the ADHD group showed more improvement in total (p=0.049), female (p=0.039), sad (p=0.002), mild (p=0.015), female extreme (p=0.005), male mild (p=0.038), and Caucasian (p=0.004) facial expressions than did the ASD group. Conclusion: SST improved facial expression recognition for children with ADHD more effectively than it did for children with ASD, in whom additional training to help emotion recognition and discrimination is needed.

• Clinical and Experimental Reproductive Medicine
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• v.47 no.1
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• pp.77-82
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• 2020

Objective: Irregular patterns of marital cohabitation are a common problem in upper Egypt due to employment conditions. The objective of this study was to investigate the effect of irregular marital cohabitation on the quality of life and sexual function of infertile men. Methods: In total, 208 infertile men were included and divided into two groups. The first group included 134 infertile men with an irregular pattern of marital cohabitation and the second group included 74 infertile men with a regular pattern of marital cohabitation. All subjects were assessed through a clinical evaluation, conventional semen analysis, the fertility quality of life (FertiQoL) questionnaire, the International Index of Erectile Function (IIEF-5) score, and the premature ejaculation diagnostic tool (PMEDT). Results: The two groups were compared in terms of conventional semen parameters, FertiQoL, IIEF-5 score, and PMEDT. Infertile men with an irregular pattern of marital cohabitation had significantly lower subscale and total FertiQoL and IIEF-5 scores. Additionally, they had significantly higher PMEDT scores. Erectile dysfunction and premature ejaculation were more common in them than in infertile men with a regular pattern of marital cohabitation. Conclusion: Irregular patterns of marital cohabitation had an adverse effect on quality of life and sexual function in infertile men.

• Korean Journal of Health Education and Promotion
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• v.19 no.3
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• pp.1-11
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• 2002

Purpose: This study was done to describe the correlation among the older Korean American adults's health-promoting behavior, life satisfaction and self-esteem. Method: The subjects consisted of 183 community-dwelling Korean immigrant elderly living in the state of Washington, USA. The instruments for this study were Health Promoting Lifestyle Profile(47 items), Life Satisfaction Scale(20 items) and Self-Esteem Scale(l0 items). Frequency, percentage, t-test, ANOVA, Duncan test and Pearson's correlation coefficient with SAS program were used to analyze the data. Result: 1) The average item score for the health-promoting behavior was 3.51; the highest score on the subscale was nutrition(M=3.63) with the lowest being exercise(M=3.07). 2) The average item score for the life satisfaction was 3.11. 3) The average item score for the self-esteem was 3.12. 4) Health-promoting behavior was significantly different according to educational level and participation in society circles. 5) Life satisfaction was significantly different according to age, religion and participation in society circles. 6) Self-esteem was significantly different according to age, marital status, religion and participation in society circles. 7) Health-promoting behavior was positively related to life satisfaction and self-esteem. The life satisfaction was positively related to self-esteem. Conclusion: It follows from this study that there is a very correlation among the older Korean American adults's health-promoting behavior, life satisfaction and self-esteem. Therefore health promoting programs that increase life satisfaction and self-esteem should be developed to promote a healthy lifestyle of the older Korean American adults.

• Journal of Korean Biological Nursing Science
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• v.21 no.4
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• pp.249-258
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• 2019

Purpose: The purpose of this study was to assess the psychosocial status of candidates for deceased donor kidney transplantation (DDKT) in South Korea and identify factors associated with high-risk psychosocial status. Methods: The descriptive cross-sectional design included application of a standardized transplantation-specific assessment tool, the Psychosocial Assessment Candidacy Transplantation (PACT) instrument, and review of candidates' medical records. A total of 157 patients awaiting DDKT were recruited from a Korean organ transplantation center. The collected data were analyzed using descriptive statistics and binary logistic regression. Candidates were divided into high- and low-psychosocial risk groups using 3 as the cutoff point of PACT. Results: The mean score for the PACT final rating was 2.10, and the lowest average subscale score was 2.30 for understanding the processes of transplantation and follow up. Poor physical candidacy, especially due to comorbidities, and older age were associated with high psychosocial risk. Conclusion: The results of this study showed that the psychosocial status of Korean DDKT candidates was problematic. Development of systematic management programs for effective clinical strategies in the care of candidates is crucial to maintain their desirable psychosocial status in case of an emergency DDKT operation and improve post-transplantation outcomes. Continuous education is absolutely necessary to enhance understanding of the transplantation process for high-risk psychosocial candidates. Additionally, nurses and transplantation professionals should screen candidates with high-risk psychosocial status early in the process using transplantation-specific assessment tools and provide intensive interventions, particularly for poor physical candidacy patients and older candidates.

• Research in Community and Public Health Nursing
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• v.16 no.1
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• pp.13-22
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• 2005

Purpose: The purpose of this study is to compare health promotion behavior and influencing factors between aged women of rural areas and urban areas, to investigate factors affecting their behavior, and to provide the primary data for developing heath enhancing program that is appropriate for the population. Method: A survey was conducted on 221 aged women 100 from urban areas and 121 from rural area. The data were collected through a questionnaire and interview. Descriptive statistics, ANOVA and multiple stepwise regression were found by using SPSS PC Win. Package. Result: There were significant difference of factors relating health promotion behavior in Pender model between the aged women in urban areas and rural areas, urban women showed higher scores in factors such as previous heath relating behavior, perceived confidence, self-efficacy, social support, satisfaction with marriage, situational influence, and behavioral plan involvement, while rural women showed higher scores in the factors of fixed idea regarding gender role, perceived disabled feeling, and activity related emotions. At the subscale of HPLP, interpersonal relation, nutrition, health responsibility, stress management, spiritual growth of rural group was lower than urban group. With the multiple stepwise regression analysis, commitment to a plan of action, social support, activity related affect, self efficacy were proved to be significant to urban group, while commitment to a plan of action. activity related affect, social support, sex-role stereotype were proved to be significant to rural group statistically. Conclusion: There were differences of health promotion behavior and influencing factors between aged women in urban areas and rural areas and women in rural areas were found to have more weakness than women in urban areas. With the results, it is concluded that health promotion programs for aged woman should be designed differently between urban and rural area regarding the factors affecting health promotion behaviors.

• The Journal of the Korea institute of electronic communication sciences
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• v.13 no.5
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• pp.1125-1134
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• 2018

The purpose of this study was comparing the disability awareness of occupational therapists and none therapists, and investigating the disability awareness according to the demographic characteristics of the respondents. The questionnaire was distributed through the online with a questionnaire based on social network service, and analyzed 62 responses of none therapists and 60 responses of occupational therapists. In results, disability awareness was not significantly different between occupational therapists and none therapists(p>.05). But, in subscale of disability awareness item 4 and 7, occupational therapists were significantly higher than none therapists(p<.05). In all respondents, disability awareness was more positive in males than females(p<.05). Also, there was no difference in disability awareness according to presence of disabled persons among family members or relatives(p>.05). However, All respondents who answered 'Yes' in the presence of disabled persons among family members or relatives in responders were significantly higher than those who answered 'No' in item 4(p<.05). There was no correlation between age and disability awareness(p>.05). The authors discussed suggestions in results of this study.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.37 no.10
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• pp.1027-1037
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• 2009

The development of a combustion chamber for a 30-$ton_f$ regeneratively-cooled space liquid rocket engine is described. Starting from the development of bi-propellant swirl coaxial injectors, essential technologies were verified through subscale combustion chambers and afterwards applied to the full-scale combustion chambers. A total of 5 full-scale combustion chambers have been utilized to verify ignition, combustion efficiency and stability, cooling, and duration requirements. A total of 46 combustion tests were performed among which 23 tests were parallely performed with stability rating tests using a pulse gun device. The test results have revealed that the 30-$ton_f$ regeneratively-cooled combustion chamber fully complies to the performance and combustion stability requirements and thus concluded that the development is successfully completed.