• Korean Journal of Social Welfare
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• v.48
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• pp.243-270
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• 2002

The purpose of this study was to test the effectiveness of cognitive-behavioral therapy to prevent relapse of substance abuse. A total of 8 substance abusing adult clients participated in the program. All the clients were charged with substance use at the time of implementing the program. Two master's level social workers operated the program, which was implemented in a probation office in Seoul. This study included Beliefs about substance use, abstinence self-efficacy, and coping skills as dependent variables in order to investigate the effectiveness. Cognitive-behavioral therapy emphasizes the enhancement of these cognitive and behavioral skills to prevent relapse of substance use. Research hypotheses were partially supported. That is, clients participated in the program had more negative attitude toward substance use and had more effective problem-focused coping skills. Although a research hypothesis of the enhancement of clients' self efficacy was not supported, their mean scores at the final post test were lower than scores at pretest. This study suggests that more studies be needed to in order to confirm the effectiveness of cognitive-behavioral therapy with substance abusing clients.

• Proceedings of the Korea Concrete Institute Conference
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• 2009.05a
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• pp.51-52
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• 2009

A new-type FRP-concrete composite deck is developed and experimentally verified, which is economically applicable to a bridge with a long span exhibiting high cost effectiveness according to reducing self-weight such as cable supported bridge.

• Korean Journal of Adult Nursing
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• v.12 no.1
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• pp.134-146
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• 2000

This study was conducted to investigate the relationship between self-esteem, health promoting behavior and the quality of life of the patients undergoing hemodialysis. The subjects were 86 patients undergoing hemodialysis in H hospital. The data were collected using a questionnaire. Data collection was done from January 11th to June 16th, 1999. The analysis of data was done by use of descriptive statistics, t-test, ANOVA, Pearson Correlation Coefficient and Multiple regression using the SPSS/PC+ program. The results are as follows: 1. The mean of the level of self-esteem was 25.02, the level of health promoting behavior, 120.04 and the level of QOL, 128.09. 2. Test for hypothesis: Hypothesis 1. "The higher the level of self-esteem of the patients undergoing hemodialysis, the higher the level of quality of life will be." was supported(r=.296, p<.01). Hypothesis 2. "The higher the level of health promoting behavior, the higher the level of quality of life will be." was supported (r=.628, p<.001). 3. Health promoting behavior explained 39.5percent of QOL($R^2$=.395, F=27.040, p<.001). 4. Monthly income(F=3.85, p<.01) and marital status(F=4.64, p<.05) were significantly related to the quality of life In conclusion, this study showed that self-esteem and health promoting behavior may be important factors that can improve the quality of life of the patients undergoing hemodiaysis. This study identified that nursing plans should include these factors to help physical, psychological and social adaptation of the patients undergoing hemodialysis.

• Human Ecology Research
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• v.53 no.6
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• pp.641-654
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• 2015

This study identifies and tracks changes gender differences in adolescent users' problematic online behavior. This study used Korea Youth Panel Survey (KYPS), which has tracked respondents over 7 years, with self-control theory and social learning theory applied as a theoretical framework. The model included individual-level variables such as self-control and respondent's experience of problematic behavior (offline), as well as socialization variables such as the number close friends who engaged in problematic offline behavior, parent-child relationships, and parental monitoring. Dependent variables included problematic online behavior, unauthorized ID use (ID theft) and cyberbullying (cursing/insulting someone in a chat room or on a bulletin board). Control variables consisted of academic performance, time spent on a computer, monthly household income, and father's educational attainment. Random and fixed effects models were performed by gender. Results supported self-control theory even for the within-level analysis (fixed effects models) regardless of gender, while social learning theory was partially supported. Only peer effects were found significant (except for unauthorized ID use) among girls. Year dummy variables showed significant negative associations; however, academic performance and time spent using computers were significant in some models. Father's educational attainment and monthly household income were found insignificant, even in the random effects models. We also discuss implications and suggestions for future research and policy makers.

• Educational Technology International
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• v.13 no.1
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• pp.145-173
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• 2012

The purpose of this study is to develop collaboration scripts as an instructional means to facilitate argumentation in computer-supported collaborative learning, and to analyze their effects. To develop collaboration scripts for argumentation, researchers used activity theory as a conceptual framework and refined the design principles by design-based research. Using LAMS, collaboration scripts for argumentation were developed based on the ArgueGraph. To examine their effects, 72 participants were divided into two groups by internal scripts and randomly allocated to one of three external scripts. Applying mixed methods, researchers analyzed argumentation competence related to the cognitive aspect, examined self-efficacy related to the motivational aspect, and identified the factors influencing collaborative learning processes and outcomes. Researchers found that the internal script is a critical factor to determine the dimensions, degrees, and duration of improvement in argumentation competence. That is, learners with higher internal scripts improved highly in the quality of single arguments, while learners with lower internal scripts improved continuously in the quality of argumentation sequences. The effects of the external scripts varied with the internal script levels and supporting periods. Besides, collaboration scripts for argumentation had positive effects on learners' self-efficacy, and learners with higher internal scripts had better self-efficacy. The factors influencing collaborative learning processes and outcomes showed different results depending on the learning context. Therefore, when scripting learner's interaction in CSCL, researchers should design the scripts adaptable to a natural context of activities.

• Proceedings of the Polymer Society of Korea Conference
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• 2006.10a
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• pp.300-300
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• 2006

Nondestructive nanostructural analysis is indispensable in the development of nano-materials and nano-fabrication processes for use in nanotechnology applications. In this paper, we demonstrate for the first time a quantitative, nondestructive analysis of nanostructured thin films supported on substrates and their templated nanopores by using grazing incidence X-ray scattering and data analysis with a derived scattering theory. Our analysis disclosed that vertically oriented nanodomain cylinders had formed in 20-100 nm thick films supported on substrates consisting of a mixture of poly(styrene-b-methyl methacrylate) (PS-b-PMMA) and PMMA homopolymer, and that the PMMA nanodomains were selectively etched out by ultraviolet light exposure and a subsequent rinse with acetic acid, resulting in a structure consisting of hexagonally packed cylindrical nanopores.

• Wind and Structures
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• v.34 no.2
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• pp.199-213
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• 2022

The current study investigates the dynamic effects in the tornado-structure response of an aeroelastic self-supported lattice transmission tower model tested under laboratory simulated tornado-like vortices. The aeroelastic model is designed for a geometric scale of 1:65 and tested under scaled down tornadoes in the Wind Engineering, Energy and Environment (WindEEE) Research Institute. The simulated tornadoes have a similar length scale of 1:65 compared to the full-scale. An extensive experimental parametric study is conducted by offsetting the stationary tornado center with respect to the aeroelastic model. Such aeroelastic testing of a transmission tower under laboratory tornadoes is not reported in the literature. A multiaxial load cell is mounted underneath the base plate to measure the base shear forces and overturning moments applied to the model in three perpendicular directions. A three-axis accelerometer is mounted at the level of the second cross-arm to measure response accelerations to evaluate the natural frequencies through a free-vibration test. Radial, tangential, and axial velocity components of the tornado wind field are measured using cobra probes. Sensitivity analyses are conducted to assess the variation of the structural dynamic response associated with the location of the tornado relative to the lattice transmission tower. Three different layouts representing the change in the orientation of the tower model relative to the components of the tornado-induced loads are considered. The structural responses of the aeroelastic model in terms of base shear forces, overturning moments, and lateral accelerations are measured. The results are utilized to understand the dynamic response of self-supported transmission towers to the tornado-induced loads.

• Journal of the Korean Geotechnical Society
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• v.25 no.1
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• pp.41-54
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• 2009

The purpose of this research is to introduce the new temporary earth retaining wall system using landslide stabilizing piles. This system is a self-supported retaining wall (SSR) without installing supports such as tiebacks, struts and rakers. The SSR is a kind of gravity structures consisting of twin parallel lines of piles driven below excavation level, tied together at head of soldier piles and landslide stabilizing piles by beams. In order to investigate applicability and safety of this system, a series of experimental model tests were carried out and the obtained results are presented and discussed. Furthermore, the measured data from seven different sites on which the SSR was used for excavation were collected and analyzed to investigate the characteristic behavior lateral wall movements associated with urban excavations in Korea. It is observed that lateral wall movements obtained from the experimental model is in good agreement with the general trend observed by in site measurements.

• Journal of Korean Academy of Nursing Administration
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• v.15 no.3
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• pp.355-364
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• 2009

Purpose: The purpose of the research is to investigate the effect of self-image on work performance and controlling ability of self-leadership in relationship in between self-image and work performance. Methods: The data were collected from Mar 16th to April 15th 2009, a descriptive survey study was conducted with 140 nurses. Results: The hypothesis "Self image of nurse would affect on work performance" is supported ($R^2$=.335, p<.001). In the hypothesis of "Self-leadership would have controlling ability on self-image and work performance", as a result of regression analysis in independent variables of self-image(A) and self-leadership(B), adding relation of both variable($A{\times}B$) would increase in 36.6% (p<.05). Conclusion: Self-image of nurse was confirmed that it had positive effect on work performance and that it had moderating ability on relationship between self-image and work performance. The shaping and strategic operation are required to increase self-leadership and positive development on self-image of nursed.

• Women's Health Nursing
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• v.5 no.1
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• pp.51-64
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• 1999

Dance movement program. Psychological wellbeing, Middle aged women, Wellbeing with depression tendency, 율동적 동작 프로그램, 우울성향 중년여성 %600an This study was designed to confirm the effects of the Dance Movement Program on psychological health in middle-age women with depression tendency. 67 women with mile to moderate depression scoring between 16-25 were selected among 235 responded to CES-D (Radloff, 1977, Cho and Kim, 1993). The 46 volunteered to participate in the study were assigned the control. 7 attritions occurred during the course of the experiment leaving thirty-nine subject : nineteen experimental and twenty control, for the final analysis. Research subjects revealed to be homogenous demographically and by health-related variables. The 50-minute Dance Movement Program was performed by the experimental group 3 times a week for eight weeks, from October 6 to November 29, 1997. Depression, life satisfaction, self efficacy were measured before and after the course of Dance Movement Program. Plasma serotonin was measured to identify its relationship with depression, Homogeneity tests revealed satisfactory level on relevant research variables. Data were analyzed by $x^2$-test, paired and unpaired t-tests. The results are as follows : 1) The hypothesis that depresson score of experimental group will decreased than control group was supported by t-test(t=2.20, P=.0021) 2) The hypothesis that life satisfaction score of experimental group will increased than control group was supported by t-test(t=1.42, P=.0049). 3) The hypothesis that self-efficacy score of experimental group will increased than control group was not supported by t-test(t=6.20, P=.0616). 4) The hypothesis that level of plasma serotonin will increased than control group was not supported by t-test(t=1.88, P=.0524) Thus, the effects of the Dance Movement Program for the improvement of psychological health gram for the improvement of psychological health for the middle-aged women with depression tendency are scientifically confirmed by this study.