• 근관절건강학회지
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• 제10권1호
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• pp.19-31
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• 2003

Purpose : The purpose of this study was to examine the effect of the self- efficacy, group cohesion and family support on adherence of aquatic exercise in arthritis patients. Method : The Subjects were 30 patients with arthritis who had participated in the 6-week aquatic exercise programs of Korean Rheumatology Health Professionals Society. All subjects were interviewed from November to December, 2001(1st) and Feburary, 2002(2nd) using a structured questionnaire which was composed of 42 items. SPSS Win 10.0 was used for data analysis. Results : Ten out of thirty were adherer who were keeping aquatic exercise for three months since they completed 6-week aquatic exercise program. The major reasons of adherence were affectional reasons and general condition improvement on the first month. The reasons of 3-month adherence were improvement of arthritis symptoms, affectional improvement, expectations, general condition improvement and group activity. The major reasons of drop out were environment factors and physical factors. The environmental reason were time shortage, economic problem and long distance. And the physical factor were cold, pain and other health problem. The scores of self-efficacy were decreased from 528.00 to 476.00 within 3 months after compeleting aquatic exercise program and that was statistically significant(p=.029). But there were no statistically differences in group cohesion and family support. There was a significant positive correlation between exercise adherence and self-efficacy. Factors influencing the exercise adherence was self-efficacy which accounted for 23% of the variance in the exercise adherence. Conclusion : In conclusion, self-efficacy is a significant variable in the exercise adherence and changes within 3 month after completing aquatic exercise program. The results of this study suggested that the strategy for maintaining self-efficacy should be developed.

• 가정과삶의질연구
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• 제30권1호
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• pp.65-76
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• 2012

The purpose of this study was to investigate effects of maladaptive personality (borderline personality, narcissistic personality, and dependent personality) and conflict behavior on marital adjustment(dyadic satisfaction, dyadic consensus, dyadic cohesion, and affectional expression) among married women. Subjects in this study were 725 married women who lived in Cheong-buk, in Gyeonggi province, Korea. Data were analyzed by the methods of frequency, percentage, Cronbach's ${\alpha}$, and factor analysis, Pearson's correlation, and hierarchical regression using SPSS-WIN version 12.0. The results of this study were as follows: 1) the less borderline personality was perceived, the more narcissistic personality was perceived, In addition, a greater perceived amount of destructive conflict behavior of wives was linked to highdyadic satisfaction in the wives'. Wives' destructive conflict- behavior was the most important parameter to predict dyadic satisfaction. 2) The less borderline personality was perceived, the less dependent personality was perceived, while the more narcissistic personality was perceived, the more destructive conflict behavior of husbands was perceived, with the, wives' incidence of dyadic consensus appearing high. Husbands' destructive conflict behavior was the most important parameter to predict a dyadic consensus. 3) The less borderline personality was perceived, the more narcissistic personality was perceived, In addition, more destructive conflict behavior of the husbands was linked to highdyadic cohesion in the wives'. Husbands' destructive conflict behavior was the most important to predict dyadic cohesion relatively. 4) The more destructive conflict behavior of wives was perceived, the higher the wives' affectional expression appeared. The wives' destructive conflict behavior was the most important parameter to predict affectional expression.

• Journal of Biosystems Engineering
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• 제32권4호
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• pp.215-222
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• 2007

In the study, the cone index, the cohesion and the internal friction angle of soil were measured before and after tillage in order to suggest relative improvement in soil properties by comparing the two measured values before and after tillage. The tillage methods tested in the study were five combinations of plowing and rotovating; one plow tillage operation, one plow followed by one rotary, one plow followed by two rotary, one rotary without plow and two rotary without plow. The experiments were performed in a soil bin in Sunggyunkwan Univ. and in four selected test fields in Yeoju, Seodun-Dong, Suwon (especially, two different fields) and Chungju. In general, the internal friction angle and cohesion of soil increased with the increase of soil compaction. After applying the tillage operations, the internal friction angle reduced by 14 degree and the cohesion decreased up to about $2.2N/cm^2$ on the soil bin in comparison with those before tillage. The two values, however, reduced by 9 degree and up to about $1.0N/cm^2$ on the tested fields. The CIs for all the tillage operations on the soil bin and on 4 different test fields were decreased by 800 kPa in comparison with those before tillage. The best combination of tillage operations for decreasing the CIs of soil was one plow operation followed by one rotary. The CIs for one plow operation followed by two rotary were slightly higher than that for one plow operation followed by one rotary because one plow operation followed by two rotary crushed down the soil excessively, so that the porosity of soil decreased.

• 한국지반공학회논문집
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• 제37권7호
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• pp.5-12
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• 2021

암반사면은 시추조사가 불가한 경우가 많아 안정 해석에 필요한 지반정수를 산정하기 어려운 경우가 빈번하다. 본 연구에서는 노두나 부분적으로 절취된 사면에서 쉽고 간편하게 측정할 수 있는 거칠기계수(JRC) 및 강도(JCS)값을 이용하여 분석하였으며 특히, JRC값이 암반사면의 안전율에 미치는 영향을 집중 분석하여 그 결과를 상관식 및 도표로 제시하였다. 사면이 안정할 때 JRC값은 사면높이가 높아질수록 평균 9.0%씩 증가하였으며, 사면기울기가 높아질수록 평균 29.8%씩 증가하여 사면 기울기변화에 보다 민감한 것으로 나타났다. JRC-c의 상관식에서 JRC에 상응하는 점착력을 계산한 결과 JRC와 점착력은 비선형적인 관계를 보였으며, 점착력은 사면의 기울기 보다는 높이 변화에 약 8.0% 더 민감한 것으로 나타났다.

• 지역사회간호학회지
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• 제8권2호
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• pp.289-303
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• 1997

This study analyzes the relations between perceived family characteristics, experienced abuse and mental health in childhood. For this, this study used row data by questionnaire, analysis, and frequency, ANOVA, t - Test, Pearson' correlation analysis. The sample was 118 children 10-12 years old in primary school. The findings are as follows. First, children perceived family cohesion and family adaptability highly, family adaptability showed a significant difference from the relations with a parent's job, a parent's academic level, and type of residence. Second, it appeared that some children experienced physical, emotional, and sexual abuse. Third, in general the mental health of children was good. Their mental health showed a significant relation to economic level of family, and type of residence, creating problems such as depression, anxiety, phobic anxiety, psychoticism. By family size, their mental health showed a significant relation to somatization, interpersonal sensitivity, depression, hostility, phobic anxiety, paranoid ideation, and psychoticism, Fourth, family cohesion and mental health perceived by children supported a linear relation to phobic anxiety, and family adaptability and mental health perceived by children supported the reverse -linear relation to somatization, anxiety, paranoid ideation, etc. Fifth, connections with perceived abuse and mental health as well as emotional abuse and mental health were also supported. Further more, on somatization, interpersonal sensitivity, depression, hostility, phobic anxiety, paranoid ideation, psychoticism, etc, a reverse-linear re lation existed. Physical abuse supported a reverse-linear relation with interpersonal sensitivity, depression, paranoid ideation, etc. and sexual abuse supported a reverse-linear relation with depression. These findings suggest that school and family have to concern themselves with the mental health of children because experienced abuse and family characteristics do indeed affect the mental health of children.

• Journal of Preventive Medicine and Public Health
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• 제33권2호
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• pp.137-149
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• 2000

Objectives : The purpose of this study was to examine the factors related to children's health behavior. Methods : A self-administered questionnaire survey was carried out for 431 (boys; 227, girls; 204) children, 6th grade students, in Taegu from December 14 to 18 in 1998. This study employed health promotion model as a hypothetical model. Collected data were analysed through the chi-square test, ANOVA, and path analysis. Results : By univariate analysis, in case of boys, health practice was related to perceived self efficacy, perceived health status, perceived benefits of health-promoting behaviors, and perceived barriers, and in girls, health practice was related to perceived self efficacy, perceived benefits of health-promoting behaviors, perceived barriers, and cues to action. By path analysis, in case of boys, the better economic status, the younger mothers' age, the higher score of family cohesion and adaptability, healthier, the more perceived benefits, and the less perceived barriers were, the more health behaviors were practiced. Girls did the more health practice, in case of living with parents only, the higher score of family cohesion and adaptability, the more perceived self-efficacy, the less perceived barriers, and the more cues to action. Family cohesion had the most important effect on health practice of primary school students. Conclusions : In order to promote health behavior of primary school students, a good family environment as well as health education might be very important. That is, we have to try together in home and as well as in school.

• Geomechanics and Engineering
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• 제31권5호
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• pp.519-527
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• 2022

Shear failure in soil is the primary cause of most geotechnical structure failures or instability. Soil water content is a significant factor affecting soil shear strength. In this study, the shear strength of samples with different water contents was tested. The shear strength, cohesion, and internal friction angle decreased with increasing water content. Based on the variation of cohesion and internal friction angle, the water content zone was divided into a high-water content zone and low-water content zone with a threshold water content of 15.05%. Cohesion and internal friction angle have a good linear relationship with water content in both zones. Environmental Scanning Electron Microscopy (ESEM) test presented that the aggregates size of the compacted loess gradually increases with increasing water content. Meanwhile, the clay in the compacted loess forms a matric that envelops around the surface of the aggregates and fills the inter-aggregates pores. A quantitative analysis of bound water and free water under different water contents using a nuclear magnetic resonance (NMR) test was carried out. The threshold water content between bound water and free water was slightly below the plastic limit, which is consistent with the results of shear strength parameters. Combined with the T2 distributions obtained by NMR, one can define a T2 relaxation time of 1.58 ms as the boundary point for bound water distribution without free water. Finally, the effects of bound water and free water on shear strength parameters were analyzed using linear regression analysis.

• Child Health Nursing Research
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• 제27권3호
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• pp.201-210
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• 2021

Purpose: This study analyzed research trends related to childhood and adolescent cancer survivors (CACS) using word co-occurrence network analysis on studies registered in the Korean Citation Index (KCI). Methods: This word co-occurrence network analysis study explored major research trends by constructing a network based on relationships between keywords (semantic morphemes) in the abstracts of published articles. Research articles published in the KCI over the past 10 years were collected using the Biblio Data Collector tool included in the NetMiner Program (version 4), using "cancer survivors", "adolescent", and "child" as the main search terms. After pre-processing, analyses were conducted on centrality (degree and eigenvector), cohesion (community), and topic modeling. Results: For centrality, the top 10 keywords included "treatment", "factor", "intervention", "group", "radiotherapy", "health", "risk", "measurement", "outcome", and "quality of life". In terms of cohesion and topic analysis, three categories were identified as the major research trends: "treatment and complications", "adaptation and support needs", and "management and quality of life". Conclusion: The keywords from the three main categories reflected interdisciplinary identification. Many studies on adaptation and support needs were identified in our analysis of nursing literature. Further research on managing and evaluating the quality of life among CACS must also be conducted.

• 한국지반신소재학회논문집
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• 제12권4호
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• pp.11-19
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• 2013

최근 해석프로그램과 시공기술의 발달에도 불구하고 많은 흙막이 가시설 공사현장에서 구조물의 붕괴로 인한 경제적 인적피해가 발생하고 있다. 이번 연구 현장의 지반조사 결과는 원래 설계시 조사결과와 다른 것으로 나타났다. 이러한 경우에 지반조사 결과를 통해 산정된 매개변수는 오류가 있을 가능성이 있고, 그 지반정수를 활용하여 분석한 가시설 구조물의 거동분석도 비합리적임을 추정할 수 있다. 이번 연구에서는 가시설 구조물에 영향을 주는 매개변수에 대한 상관성을 탄소성해석법을 이용하여 분석하였다. 분석방법으로 탄소성해석법에 적용되는 주요 매개변수(점착력, 지반반력계수, 하중조건)를 변화시키고 그 변화로 인한 흙막이 가시설 재료(부재)의 거동을 분석하였다. 그 결과 점착력이 재료의 거동에 가장 큰 영향을 주는 것으로 나타났다. 따라서 흙막이 가시설의 설계에서 지반조사 결과와 실제 지반의 확인과 여러 매개 변수중에서 점착력의 정확하고 합리적인 산정이 매우 중요함을 알 수 있었다.

• 한국산림과학회지
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• 제112권4호
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• pp.426-441
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• 2023

본 연구에서는 수확벌채에 따른 수목의 뿌리 점착력의 변화와 토양의 포화를 가정한 지표유출의 세 가지 흐름 기법(SFD; Single flow direction, MFD; Multiple flow direction, IFD; Infinite flow direction)을 무한사면 안전율 공식에 적용하여 산사태 발생 예측 모델링의 정확성을 분석하였다. 이를 위해 2020년 8월 집중호우의 영향으로 자연사면과 벌채사면에서 다수의 산사태가 발생한 제천지역을 연구지역으로 선정하였다. 위성영상과 25cm급 항공사진을 이용한 산사태 인벤토리 맵핑 결과, 연구지역 내에서 총 830개소의 산사태 발생원이 확인되었다. 산사태 모델링 결과, 벌채에 따른 뿌리 점착력의 변화를 고려한 경우(MFD: 0.81, IFD: 0.80, SFD: 0.80)가 벌채의 영향을 고려하지 않은 경우(MFD: 0.79, IFD: 0.79, SFD: 0.78)에 비하여 AUROC(Area Under the Receiver Operating Characteristics) 분석에서 정확성이 1.3~2.6% 향상되는 것으로 나타났다. 또한, MFD 알고리즘을 이용한 경우는 다른 알고리즘과 비교하여 AUROC 분석에서 정확성이 최대 1.3% 향상되었다. 이러한 결과는 식생조건의 변화를 고려한 뿌리 점착력의 차등 적용과 지표유출수 흐름기법의 선정이 산사태 예측 모델링에 영향을 미칠 수 있음을 시사한다. 향후 이 연구의 결과는 현지 수문모니터링과 함께 수종별 뿌리 점착력의 특징 및 변화를 고려하여 검증되어야 할 것이다.