• 한국학교보건학회지
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• 제28권1호
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• pp.1-9
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• 2015

Purpose: The purpose of this study is to examine the effect of sleep duration on suicidal ideation in Korean adolescents. Methods: This study used the data drawn from Korea Youth Risk Behavior Web-Based Survey in 2013. A total data of 63,301 adolescents were included in the analysis. Included variables were general characteristics, health status variables, hours of sleep, and suicidal ideation. For sample description weighted percentage and means were used. Rao-Scott ${\chi}^2$ test and simple and multiple logistic regression with dummy variables were conducted with use of SAS 9.2. Results: Among general characteristics and health status variables, gender, grade, school level, school achievement, family's economic status, living with parents, subjective health, happiness, stress, and feeling of despair were found to be significantly related to suicidal ideation. Rates of having suicidal ideation were 22.4% in the case of students with less than 5 hours of sleep and 12.9% in students with 8 or more hours of sleep. After controlling general characteristics and subjectively perceived variables, hours of sleep was still significantly related to suicidal ideation. That is, compared to adolescents with 8 hours or more of sleep, those with less than 5 hours of sleep showed significantly higher risk for having suicidal ideation (adjusted odds ratio: 1.20, p<.001). Conclusion: These findings suggest that short sleep has negative effects on psychological health in adolescents. Particularly, less than 5 hours of sleep has harmful effect on adolescents' increased risk for having suicidal ideation.

• 한국학교ㆍ지역보건교육학회지
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• 제20권1호
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• pp.69-84
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• 2019

Objectives: The purpose of this study is to examine change in adolescent depression across time and to determine the relation between individual and neighborhood socioeconomic status (SES) and depression. Methods: This study employed multilevel latent growth analysis using longitudinal data from Korea Children and Youth Panel Survey. A sample of this study consists of 2,351 adolescents who were in first grade of middle school in 2010. Results: Results showed that both initial level and downward trajectory of depression varied significantly across individuals as well as across neighborhoods. On the individual level, self-rated economic condition(b=-0.203, p<.001) was related to the initial level of depression. Adolescents whose father had a high educational level(b=0.028, p<.001) or whose mother had a low educational level(b=-0.022, p=.011) had lower rates of decline in adolescent depression. On the neighborhood level, neighborhood deprivation index (b=0.003, p=.019) and gini coefficient(b=0.124, p=.040) were associated with lower rates of decline in depression. Conclusions: Low SES in adolescence is correlated with worse mental health, especially depression. Social disparities in depression likely originate before adulthood. The findings argue for the importance of understanding depression in adolescence from a multilevel or ecological framework.

• 한국보육지원학회지
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• 제13권6호
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• pp.127-141
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• 2017

Objective: The purpose of this study was to figure out early childhood teachers' perception on rights of young children and what they do to implement the perceived rights of young children in early childhood settings. Methods: Two individual and two group interviews were conducted. First, individual interviews were held with one childcare center teacher, and then interviews were held with one kindergarten teacher. Both group interviews were conducted with three different kindergarten teachers. All interviews were held two times. Recorded and transcribed interview data were analyzed. Results: The results are as follows. First, participants perceived rights as natural, protective, expressive, equally respectful, and joyful but understood differently from that of adults due to developmental status of young children, which included rights to life, equality, participation, protection, and happiness. Second, teachers remarked that they used strategies to project young children's emotions to implement perception on rights to life and happiness, discern deprivation from violation for rights to protection and equality, and set rules and have double standards utilizing resources around, for rights to participation. Conclusion/Implications: These results have implication for organizing contents for rights education for early childhood teachers.

• 한국학교ㆍ지역보건교육학회지
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• 제18권1호
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• pp.43-56
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• 2017

Objectives: This study was aimed to investigate the status of sleep quality and related factors among some middle and high school students in one metropolitan city, Korea. Methods: The subjects were 480 high school students and 350 middle school students. Survey questions are based on Pittsburgh Sleep Quality Index(PSQI) to measure the quality of sleep and also include factors affecting the quality of sleep. PASW Statistics 20.0(Korean version) was used to carry out analysis. Results: Noise and stress showed the statistical significance as factors affecting the quality of sleep by multiple regression analysis. Individual characteristics was related to quality of sleep in only high school student. Conclusions: This study showed that noise and stress had a great correlation with the quality of sleep. Social consciousness and policies were needed to improve the quality of sleep for middle and high school student.

• Asian-Australasian Journal of Animal Sciences
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• 제27권9호
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• pp.1360-1367
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• 2014

Triplicate groups of fed and starved olive flounder, Paralichthys olivaceus (body weight: $119.8{\pm}17.46$ g), were examined over 42 days for physiological changes using hematological, biochemical, and non-specific immune parameters. No significant differences in concentrations of blood hemoglobin and hematocrit and plasma levels of total cholesterol, aspartate aminotransferase, alanine aminotransferase, glucose, and cortisol were detected between fed and starved groups at any sampling time throughout the experiment. In contrast, plasma total protein concentrations were significantly lower in starved fish than in fed fish from day 7 onwards. Moreover, plasma lysozyme concentrations were significantly higher in starved flounder from day 21 onwards. This result confirms that the response of olive flounder to short-term (less than about 1.5 months) starvation consists of a readjustment of metabolism rather than the activation of an alarm-stress response. The present results indicate that starvation does not significantly compromise the health status of fish despite food limitation.

• 한국의류학회지
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• 제46권6호
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• pp.1023-1038
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• 2022

In societies emphasizing the importance of youthful appearance, attitudes toward aging are closely related to how individuals perceive their own bodies, which can be a major determinant of psychological well-being among older adults. The purpose of this study was to examine the associations between attitudes toward aging, positive body image, and life satisfaction among older Korean adults, based on relative deprivation theory and social identity theory. Employing an online survey questionnaire, data was collected from 408 Korean aged 65 and over. The proposed research model was examined via partial least square structural equation modeling (PLS-SEM). Results revealed that higher levels of psychosocial loss were associated with lower positive body image, while higher levels of physical change and psychological growth - a good example were associated with higher positive body image. Higher levels of positive body image were associated with higher life satisfaction. Overall, positive attitudes toward aging may increase positive body image and life satisfaction among older adults, controlling for subjective financial and health status. The results of this study emphasize that we should not overlook the importance of positive body image in psychological well-being among older adults.

• 대한인간공학회지
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• 제17권3호
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• pp.13-22
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• 1998

Aircraft and the three-dimensional environment in which they operate are not user-friendly for human beings. As a result, maintaining the proficiencies necessary to safely and efficiently fly an airplane are difficult, and costly. The physiological and emotional status of the human element remains crucial in maintaining safe performance by all crew members. In the study of Hagiwara et al.(1993). they called the physiological and emotional status of the human element into the human alertness or physiological activity and stress, fatigue, circadian rhythm, alcohol. smoking, and self-medication are known the major factors that deteriorate the human alertness. Accordingly. this paper deals with the quantitative and objective performance test based on tracking error and reaction time by means of the new computer test program into which the perception-motion system of human beings is applied. Throughout this experiment using performance test, the results suggest that performance capability in state of sleep deprivation 2 hours and alcoholic 0.05~0.06% in blood were more impaired than one in a normal state, and they further showed statistically significant differences between them, which were influenced by impairment factors of body regulation and pilot's grade. We also obtained the prediction value and the 95% confidence interval of tracking error and reaction time at the normal state for the purpose of distinguishing performance capability between the normal state and the abnormal state. And it is expected that the evaluation of human alertness using performance test will be applied to the quantitative assessment of an each pilot's realistic consciousness/attention, and will lead a flight commander to the accurate decision of mission approval prior to a flight.

• 한국직업건강간호학회지
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• 제29권1호
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• pp.49-57
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• 2020

Purpose: This study aimed to identify and compare the risk factors of depression among middle-class Korean workers. Methods: A cross sectional study was designed for secondary data analysis. From the 8th Korean Medical Panel Survey (2008~2013), a total of 3,056 data was drawn and analyzed. With SPSS version 24, a developmental stage comparison, with the stage being young adults (20~39), middle-aged adults (40~64), and older adults (65+) were conducted. Frequency, percentage, 𝑥² test and logistic regression analysis were statistical tools used to analyze the data. Results: In all developmental groups, experience of frustration was found to be a common risk factor of depression. Stress from excessive task, peer-compared subjective health status, and self-perceived social class were risk factors of depression in the young adults and the middle-aged adults. Anxiety for the future significantly influenced depression in the middle-aged adults and older adults. Conclusion: Experience of frustration was a major risk factor of depression among Korean middle-class workers. Interventions to reduce depression need to be developed focusing on the specific risk factors by developmental stages such as experience of frustration, stress from task burden, poor peer-compared subjective health status and anxiety for the future.

• 한국인구학
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• 제31권1호
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• pp.1-26
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• 2008

본 연구는 주거지역 특성이 그 지역 구성원의 건강수준에 미치는 영향이 일반 집단보다는 취약집단에서 더 크게 나타날 것으로 보았다. 이를 규명하기 위해 서울시민을 대상으로 한 2005년 서울시 보건지표조사 자료를 이용하였으며, 행정구역상의 '구'를 지역효과를 나타내는 기본단위로 설정하였다. 개인의 건강수준은 주관적 건강인식(Self Rated Health)과 정신건강으로 측정하였으며 지역특성을 설명하는 변수로 서울시 25개 '구' 각각의 사회 경제적 수준, 사회적 자본 및 문화 자본, 물리적 환경, 인구학적 특성 등을 활용하였다. 구성효과를 통제하기 위해 성, 연령, 결혼상태, 교육수준, 직업, 소득 등의 개인특성변수를 포함한 다수준 분석을 실시하였다. 취약집단으로 저소득층, 노인, 40세 이상으로 배우자가 없으면서 무직인 중 노년층 세 개의 집단을 선정하여 각각을 분석하였다. 분석결과 우울 경험을 이용하여 측정한 정신 건강의 경우 지역 간 차이가 세 취약집단 모두에서 일반 인구집단보다 더 크게 나타났다. 지역변수들과 개인변수들을 모두 고려한 다수준 모형에서 지역주민의 행복지수, 물질결핍지수, 빈곤선 이하 가구 비율, 행복 지수, 거리 안전에 대한 인식 수준 등의 지역변수들이 개인특성변수의 효과를 통제한 후에도 취약집단의 정신건강 차이를 설명하는 변수로 확인되었다. 이런 지역특성의 맥락효과는 주관적 건강에서보다 정신건강에서 더 크게 나타났다. 특히 취약집단 중 노인집단의 경우 지역 간 분산의 차이가 상대적으로 컸을 뿐 아니라 분석에 포함된 다양한 지역특성변수들이 통계적으로 의미 있게 나타나 다른 취약집단에 비해 지역의 상황에 더 크게 영향을 받은 것으로 판단된다.

• 한국어류학회지
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• 제11권1호
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• pp.33-41
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• 1999

기아에 따른 버들치 Rhynchocypris oxycephalus의 생화학적, 조직학적 변화를 파악하기 위해, 간의 간중량지수, 단백질 함량, RNA 량 및 DNA 량 조사와 더불어 간세포 및 중장 상피 세포의 조직학적 조사를 실시하였다. 기아군은 포식군에 비해 간의 단백질 함량, RNA 량 및 DNA 량에서 높은 값을 보였지만, 먹이 공급 중단은 간 중량지수, 간 세포 핵 크기 및 중장 상피 세포 핵 높이에 있어서 감소를 나타내었다. 본 실험에서 조사된 RNA-DNA 비는 버들치의 영양 상태 파악 지수로 유용하였으며 또한, 버들치 표본 시기에서의 높은 성장 단계인지 혹은 낮은 성장 단계인지의 성장 활성 파악을 가능케하였다. 본 연구 결과의 자료를 구체적으로 해석하였으며, 아울러 다수의 생물학적 중요 연관 사항들을 고찰하였다.