• Research in Community and Public Health Nursing
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• v.13 no.2
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• pp.239-248
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• 2002

Objectives: The purpose of this study was to evaluate the effects of assertiveness training on assertiveness behavior, problem solving ability, and interpersonal relationships of nursing college students. Methods: A nonequivalent pre- and post-test experimental design was used. This study included 15 subjects in the experimental group, and 15 subjects in the control group, who were sophomore nursing students recruited from Gachon Nursing School located in Inchon City. The experimental group received 8 series of a ready planned and reorganized assertiveness training course, while the control group did not receive any training. The 120 minute training session was held on a weekly basis. The Maan-Whitney U Test was done to identify the changes in scores of assertiveness behavior, problem solving ability, and interpersonal relationships between the experimental and the control groups, after the assertiveness training. The data were collected before and after each part of the assertiveness training. The data collection period was from May 7 to July 10, 2001. Results: 1) The assertiveness behavior scores of the nursing students who participated in the assertiveness training were higher than those of the nursing students who did not participate in the assertiveness training. 2) The self problem solving evaluation scores of the nursing students who received assertiveness training were higher than those of the nursing students who did not receive the training. 3) The interpersonal relationship scores of the nursing students who participated in the assertiveness training were higher than those of the nursing students who did not participate in the assertiveness training. Conclusion: The study results showed that the assertiveness training was effective in promoting assertiveness behavior, problem solving ability, and changes in interpersonal relationships in nursing college students. It is suggested that well designed strategies are needed in the further studies in order to expand and apply the assertiveness training to other nursing student and nurse cohorts.

• Journal of Korean Academy of Nursing
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• v.37 no.4
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• pp.478-489
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• 2007

Purpose: The purpose of this study was to determine the effects of a Health Maintenance Program on physical functions and mental health of the elderly in nursing homes. Method: Sixty elderly(over 65 years old) in a randomized control study participated in a 16-week group-based intervention including functional exercises and health education. The participants were divided into 3 groups(Health Maintenance Program Group, Supportive Music Exercise Group, and Control Group) of 20 elderly each. Data was collected from Dec. 1st, 2005 to Mar, 30th, 2006. Physical function of lower body strength was assessed using a 30-second chair test, flexibility was assessed using a sit-and-reach test, and static balance was assessed by the ability to balance on one leg with open and closed eyes. Depression was assessed using the Korean Form of the Geriatric Depression Scale and self esteem was assessed using Rosenberg's Self Esteem Questionnaire. Data was analyzed by Chi-square test, One-way ANOVA, and Repeated measure two factor analysis. Results: A Health Maintenance Program significantly increased muscle strength, flexibility and static balance, but depression and self-esteem scores were not significantly changed. Conclusion: Findings demonstrated that a Health Maintenance Program was more effective on physical function than mental health of the elderly in nursing homes.

• Physical Therapy Korea
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• v.15 no.3
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• pp.8-16
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• 2008

The range of motion (ROM) of ankle dorsiflexion in older women was associated with gait abnormalities and the risk of falls. The purpose of this study was to investigate the effect of self-stretching exercise on the flexibility of the plantar flexors of the ankle and the characteristics of gait in healthy elderly women. Fifteen participants were assigned randomly into an exercise (n=8) or control (n=7) group. The exercise group attended a self-stretching program approximately 30 minutes for 3 days per week for 4 weeks. The active ankle dorsiflexion ROM and gait measurements were taken prior to beginning the stretching program and 1 day after the last stretching day. Results showed that the active ankle dorsiflexion ROM was significantly increased in the exercise group than in the control group after the stretching program (p<.05). However, gait parameters, including gait speed, cadence, and stride length were not significantly different between the two groups (p>.05). The results suggest that a 4-week self-stretching program is capable of provoking a significant increase in ankle dorsiflexion ROM in elderly, community-dwelling women. Additional research is needed to investigate the effect of gait-specific exercise combined with stretching exercise on gait ability.

• Korean Journal of Human Ecology
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• v.20 no.5
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• pp.955-966
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• 2011

This study is intended to identify the difference in social skills among adolescent students, by grade gender, rights practice, and self-awareness. It will raise awareness of the importance of the rights of adolescents and provide basic data of guaranteed rights for adolescents and social skills. Using questionnaires, a 569 adolescents, in four middle and high schools in Seoul and the Capital Area, were analyzed. The study results were as follows: first, females showed higher empathy skills than males did in social skills. In the case of male adolescents, self-control skills among social skills, was higher than those of females. Second, practice for rights and self-concept had positive influences on social skills. The higher the practice for rights, the higher cooperation, assertiveness, empathy, and self-control the adolescents had. The more positive self-concept of physical appearance, gymnastic ability, friends, and honesty, trust and value, indicated a higher assertiveness. The result implied that the adolescents' practice for their rights, self-concept, and social skills were highly correlated with one another, and adequate practice for their rights and positive self-concept had influences on their social skills. Based on the results, in order for adolescents with a low level of social skills to have a satisfactory social life, they should be encouraged to practice their own rights in the right direction and to acquire positive self-concept in the future.

• International Journal of Automotive Technology
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• v.4 no.4
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• pp.181-191
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• 2003

Since the nonlinearity and uncertainties which inherently exist in vehicle system need to be considered in active suspension control law design, this paper proposes a new control strategy for active vehicle suspension systems by using a combined control scheme, i.e., respectively using a genetic algorithm (GA) based self-tuning PID controller and a fuzzy logic controller in two loops. In the control scheme, the PID controller is used to minimize vehicle body vertical acceleration, the fuzzy logic controller is to minimize pitch acceleration and meanwhile to attenuate vehicle body vertical acceleration further by tuning weighting factors. In order to improve the adaptability to the changes of plant parameters, based on the defined objectives, a genetic algorithm is introduced to tune the parameters of PID controller, the scaling factors, the gain values and the membership functions of fuzzy logic controller on-line. Taking a four degree-of-freedom nonlinear vehicle model as example, the proposed control scheme is applied and the simulations are carried out in different road disturbance input conditions. Simulation results show that the present control scheme is very effective in reducing peak values of vehicle body accelerations, especially within the most sensitive frequency range of human response, and in attenuating the excessive dynamic tire load to enhance road holding performance. The stability and adaptability are also showed even when the system is subject to severe road conditions, such as a pothole, an obstacle or a step input. Compared with conventional passive suspensions and the active vehicle suspension systems by using, e.g., linear fuzzy logic control, the combined PID and fuzzy control without parameters self-tuning, the new proposed control system with GA-based self-learning ability can improve vehicle ride comfort performance significantly and offer better system robustness.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.6
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• pp.109-115
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• 2020

The purpose of this study is to verify influences of a cinema psychotherapy class containing a discussion on improving the emotional intelligence and empathic ability of university students. The research subjects were divided into a test group and a control group, with 106 students in each group. For a semester, the test group attended a practice-centered course including cinema psychotherapy, while the control group attended a discussion on personality psychology theory. The test group was shown 6 films in 12 weeks and answered structural questions between the researcher and subjects, and nonstructural questions between subjects. The results were as follows: The test group showed significant increases in self and other emotion appraisals in the emotional intelligence field. On the other hand, there was no significant change in emotional intelligence among the control group. With respect to empathic ability, the test group showed a significant increase in cognitive empathy, perspective taking, fantasy, and emphatic concern, while the control group didn't show significant change in empathic ability. In post-test, the test group demonstrated a significantly higher ability in cognitive empathy and perspective taking compared to the control group. This study verified that an interactive cinema psychotherapy class can increase emotional intelligence and emphatic ability. This study also demonstrated the effectiveness and necessity of a cinema psychotherapy class. As the class improves, more factors of emotional intelligence and empathic ability can be addressed.

• Reproductive and Developmental Biology
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• v.29 no.2
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• pp.93-99
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• 2005

Human embryonic stem cells (hESCs) derived from the inner cell mass of blastocysts have the ability to renew themselves and to differentiate into cell types of all lineage. The present study was carried out to investigate whether the Wnt signaling pathway is related to maintaining self-renewal of hESCs. Glycogen Synthase Kinase 3 (GSK-3) inhibitor, BIO ((2'Z,3'E)-6-Bromoindirubin-3'-oxime) was treated to Miz-hES1 line for activation of Wnt signaling pathway. BIO-nontreated hESCs (control) and BID-treated hESCs were cultured for 5 days in the modified feeder-free system. During the culture of hESCs, differences were observed in the colony morphology between 2 groups. Controls were spread outwards whereas BIO-nontreated hESCs were clumped in the center and the differentiated cells were spreading outwards in the edges. The results of stem cell specific marker staining indicated that control were differentiated in large part whereas BIO-treated hESCs maintain self-renewal in the center of the colony. The results of lineage marker staining suggested that outer cells of the hESC colony were differentiated to the neuronal progenitor cells in both control and BIO-treated hESC. These results indicate that Wnt signaling is related to self-renewal in hESCs. In addition, control group showed higher composition of apoptotic cells $(23.76\%)$ than the BID-treated group $(5.59\%)$. These results indicate that BIO is effective on antapoptosis of hESCs.

• Journal of the Korea Convergence Society
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• v.9 no.5
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• pp.247-256
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• 2018

The purpose of this study is to examine effects of pre-learning and role learning using video on self-regulated learning of nursing students in fundamental nursing practice education. A nonequivalent control group was designed to conduct a pre-post test for this study. The participants were assigned to the experimental(n=84) or control group(n=76). Data was collected from March to June, 2016. The experimental group received education based on pre-learning and role learning using video for 13 weeks. On the other hand, the control group only received explanation-based education. Data was analyzed using ${\chi}^2-test$, independent t-test, and ANCOVA. There was a significant increase in rehearsal, metacognition, self-efficacy, and help seeking in the experimental group compared to those in the control group. Results of this study indicate that pre-learning and role learning using video were effective in enhancing students' ability in rehearsal, metacognition, self-efficacy, and help seeking sections.

• Journal of the Korean Society of Physical Medicine
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• v.13 no.1
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• pp.137-146
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• 2018

PURPOSE: This study examine the effect of community ambulation training on gait, depression and self - efficacy of stroke patients in order to develop more effective training methods of community rehabilitation. METHODS: In the experimental group, community ambulation training combined with indoor and outdoor walking was performed for 30 minutes three times a week for six weeks. In the control group, general indoor walking training was performed. The physical factors were assessed by a 10-meter walking test, six-minute walking test and community gait test. Psychological factors were assessed by the Korean version of the Epidemiology Center Depression Scale and Activity-Specific Balance Confidence Scale. RESULTS: In the 10-meter walking test, the normal walking speed was significantly improved after the intervention in both the experimental group and the control group (p<.05). However, the fast walking speed was significantly improved only in the experimental group (p <.05). ln the community gait test, the experimental group showed significant improvement (p<.05), but the control group did not. Depression and self-efficacy were significantly improved in the experimental group (p<.05) but not in the control group. CONCLUSION: Community ambulation training may improve the gait ability of stroke patients and reduce their depression and improve self-efficacy.

• Journal of Korean Public Health Nursing
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• v.16 no.2
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• pp.378-387
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• 2002

This study was conducted to investigate the degree of PSI (self-evaluative awareness of problem solving ability) in PMHNP (psychiatric mental health nurse practitioners) and to identified the factors predicting problem solving ability of them, in order to provide basic data for the development of the specific education programs to improve problem solving ability. Data was collected from 355 subjects who have the certificates of PMHNP working in hospitals and public centers. Chun Seok Kyun's instruments (1993) based on the Heppner and Petersen's Problem Solving Inventory (1982) was used to determine PMHNPs' PSI. The results were as follows; 1. The average score of PSI of PMHNP was $2.81\pm0.23$. Of the three factors. there marked the lowest score in the factor 3. personal control $(2.56\pm0.43)$, and the highest score was in the factor 1. problem-solving confidence $(2.95\pm0.34)$. 2. The differences in PSI were significant for degree of education and career in psychiatric settings (p=0.000l, p=0.0187). 3. Job satisfaction was the highest factor predicting PSI of PMHNP$(17.9\%)$. When degree of education, career in psychiatric setting and marital status were added, the total predictors explained $24.3\%$. As a result, it is necessary to conduct further research in relation to the problem-solving process, the development of education program. skill acquisition and measurement of problem solving in nursing practice.