• Journal of Digital Convergence
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• v.15 no.5
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• pp.305-315
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• 2017

This study examined the relationships sleep habits, daytime sleepiness, and problem behaviors. A cross-sectional survey design was used. Participants were 276 adolescents. Sleep habits, daytime sleepiness and problem behavior were measured by Adolescent Sleep Hygiene Scale (ASHS), Epworth Sleepiness Scale (ESS), and Korea-Youth Self Report (K-YSR), respectively. Data were collected from July to August, 2014 using self-reported questionnaires. Participants were middle school students, perceived their sleep time as enough and their sleep quality as good, have no problem behavior during sleep, and have no caffeinated drink for last a week were more likely to have higher score of sleep hygiene. Sleep habits score was associated negatively with daytime sleepiness and problem behaviors. Sleep impacts on physical growth, behavior, and emotional development of adolescent. Therefore, it is necessary to develop a sleep enhancement program for the good sleep habits of the adolescents, and to make efforts at home and school.

• Proceedings of the Korea Information Processing Society Conference
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• 2017.04a
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• pp.763-764
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• 2017

수면시간이 부족하거나 불규칙적인 현대인들에게 수면으로 인한 문제가 대두되고 있다. 공부나 업무 등으로 인해 수면 시간을 더 확보하지 못하는 사람들에게는 수면의 양을 늘려서 해결하는 방법은 실행하기 어렵다. 따라서 수면의 질을 향상시켜 효율적인 수면을 통해 문제를 해결하는 것이 필요하다. 이를 위해서 본 논문에서는 IoT를 활용한 블라인드를 통해 수면 부족 문제를 해결하려 한다.

• Journal of the Korea Convergence Society
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• v.12 no.7
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• pp.337-347
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• 2021

This study sought to determine whether there were mediating effects on both mental health and sleep problems as induced by COVID-19 fears and its effects on preventive practices. The participants were 310 adults living in the Seoul/Gyeonggi Province. For data collection, an online survey was conducted using a semi-structured questionnaire. The collected data were analyzed using PROCESS Macro (Model 6) to validate the dual mediating effects. This study analyzed the direct effects of COVID-19 fears on the mental health problems, sleep problems and preventive practices. Both mental health and sleep problems had dual mediating effects in the influence of COVID-19 fears on preventive practices. Preventive practice has shown that the mediated effects of mental health problems play a strong role in instances when COVID-19 fears increase.

• Journal of Korea Entertainment Industry Association
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• v.14 no.7
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• pp.501-509
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• 2020

The purpose of this study was to provide basic information about the analysis of the changes in problem behavior, sleep quality and quality of life of the people with intellectual disability through the application of the heavy work activities. This study subjects were 10 people with intellectual disability and they participated in the this activities for 12 weeks. Through the application of heavy work activities, Korean-Adaptive Behavior Scale was used to analyze the changes in problem behavior, sleep quality assessment was used to analyze the changes in sleep quality and satisfaction with life scale was used to analyze the changes in quality of life. As the results, the decrease of problem behavior, the improvement of sleep quality and quality of life were showed. Heavy work activities should be act to decrease the problem behavior, improve sleep quality and quality of life of the study subjects. Thus, heavy work activities should be considered to apply for the people with intellectual disability.

• Therapeutic Science for Rehabilitation
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• v.12 no.4
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• pp.97-109
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• 2023

Objective : This study aimed to investigate the mediating effect of play on the relationship between toddlers' sleep habits and problem-solving. Methods : In total, 1,734 participants were selected from the 3rd wave of the Panel Study on Korean Children. A structural equation modeling approach was utilized to examine the relationship among toddlers' play, sleep habits, and problem-solving, as well as to investigate the mediating effect of play. Results : The monthly age of the study participants ranged from 23 to 32 months, with 885 (51.0%) boys and 849 (49.0%) girls. The indirect effects of play on problem-solving skills (β = 0.137, p = .006) were statistically significant, but the direct effects of sleep habits on problem-solving skills (β = -.015, p = .871) and the total effect (β = 0.122, p = .057) were not significant. Conclusion : This study indicated that sleep habits did not have a direct effect on problem-solving ability, but that the indirect effects were significant and fully mediated by play. Incorrect sleep habits can negatively affect lifelong development. Therefore, parents would need to be aware of whether their child is developing good sleep habits during the toddler age.

• Journal of Naturopathy
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• v.9 no.2
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• pp.57-61
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• 2020

Purpose: Purpose: This study was to study the effect of foot bathing on menopausal symptoms and sleep disorders in female subjects in their 50s with menopausal symptoms. Methods: After 12 weeks of foot bath therapy three times a week, pre- and post-menopausal signs were measured. Results: Subjects with hot flashes, heart discomfort, sleep problems, depression, irritability, anxiety, physical and mental fatigue, sexual problems, urination problems, vaginal dryness, and joint and muscle discomfort significantly improved after than before(p < .001). Subjective sleep quality, sleep incubation period, sleep duration, sleep disturbance score, sleep drug use, and sleep dysfunction significantly decreased after foot bath than before(p < .001). Habitual sleep efficiency increased considerably. Conclusions: The subjects showed overall improvement in menopausal symptoms and sleeping quality after a foot-bath. Therefore, foot bath therapy is evaluated as a natural healing therapy suitable for improving menopausal symptoms and sleep.

• The Journal of the Korea Contents Association
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• v.15 no.6
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• pp.337-345
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• 2015

Korea worker is well known for its long work and amongst employees and to change un-healthy lifestyle. This study aims to investigate the association between health behaviors and sleep problems in employees. It employed data from the Third Korean Working Conditions Survey (KWCS). The total number of individuals included in the analysis was 34,788 employees, from the 2011 survey. The outcome was sleep problems, which had a prevalence rate of 2.5% in men and 2.3% in women. An adjusted odds ratios were as follows: 2.26(1.75-2.91) for hypertension, 2.21(1.60-3.06) for obesity, 26.82(21.51-33.45) for depression and 2.02(1.64-2.49) for high level of job stress. We need to invest to identify relevant and various health service promotion for sleep problem that un-healthy workers want will use.

• Therapeutic Science for Rehabilitation
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• v.10 no.2
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• pp.129-140
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• 2021

Objective : The purpose of this study was to examine differences in social maturity and behavioral problems according to the level of sleep problems in children with ASD. Methods : The participants were 102 mothers of infants with ASD aged 1-5 years. The Social Maturity Scales (SMS) and Child Behavior Checklist 1.5-5 were used as the measuring tools. Results : The level of sleep problems in infants with ASD was 56.58T on the sleep problems scale. The participants were grouped based on scores on the sleep problems scale: those with scores <65 (good sleepers) or scores ≥65 (poor sleepers). Sleep problems significantly correlated with all the scales on the CBCL. However, no association was found between sleep problems and social quotients. Poor sleepers achieved significantly lower scores on the social quotient scale of the SMS than good sleepers. Poor sleepers achieved significantly higher scores in internalizing problems, externalizing problems, and DSM-oriented scales on the CBCL compared to those in the good sleepers. Conclusion : The significance of this study is that it has verified the severity of sleep problems in infants with ASD and has examined the differences in social maturity and behavioral problems between poor sleepers and good sleepers.

• Journal of Ocean Engineering and Technology
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• v.4 no.1
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• pp.62-70
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• 1990

Cauchy의 적분공식을 복소속도(complex velocity)에 적용하여 포텐시얼 유동을 해석하는 복소경계요소법이 개발되었다. 이 결과로 얻어지는 적분방정식은 경계면에서의 접선속도(tangential velocity)와 법선속도(normal velocity)의 함수로 주어진다. 자유수면에서의 접선속도의 시간변화(evolution of tangential velocity)를 수식화하기 위하여 새로운 비선형 동역학적 자유수면경계조건(nonlinear dynamic free surface boundary condition)을 유도하였다. 복소포텐시얼 대신 복소속도를 이용하는 이 방법은 유장내의 특이점(field singularity)을 용이하게 고려할 수 있으며, 수치미분없이 직접 경계면에서의 유속을 해로서 구하게 된다. 그러나 자유수면이 존재하는 문제의 경우에는, 자유수면에서의 동역학적 경계조건을 만족 시키기 위한 계산과정에 접선 벡타의 변화량을 추정하는 것이 포함되게 되어, 계산과정이 다소 복잡하게 된다.

• Journal of the Korea Convergence Society
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• v.11 no.3
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• pp.311-319
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• 2020

The purpose of this study was conducted to investigate the effect of sleep problems and work-family conflict on job engagement of married female nurses and prove the mediating effect of work-family conflict. This study was the secondary data analysis from the 5th Korean Working Conditions Survey. The sample included 259 married female nurses. Data were analyzed using the SPSS 24.0 and AMOS 24.0 program. As a results, the significant predictors for job engagement were sleep problems (β=-.33) and work-family conflict (β=-.30). Also, there was a mediating effect of work-family conflict between sleep problems and job engagement(p<.001). And these variables explained 28.0% of married female nurses' job engagement. These findings may also be useful for improving the work-related well-being of married female nurses. Therefore, findings from this research can be used to institute guidelines for convergence interventions to increase job engagement in married female nurses.