• Journal of the Korean Society of Food Culture
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• v.32 no.1
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• pp.10-17
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• 2017

This study aimed to examine the effects of transformational leadership on employees' trust, perceived support from superiors, organizational citizenship behavior, and moderating effects of locus of control. Using the Amos program, this study tested reliability and fitness of the research model and verified five hypotheses based on empirical data from 233 employee samples in coffee shops. The result of this study shows that positive consideration and charisma of transformational leadership positively influenced employees' level of trust toward superiors and perceived support from superiors. Trust had positive effects on promotion of organizational citizenship behavior of employees. Lastly, analysis of the moderating effect of locus of control showed that a lower level of extrinsic control and higher level of intrinsic control were both positively correlated with greater receptiveness to transformational leadership. The findings in this study identified several significant factors of employee effectiveness influenced by transformational leadership in the coffee shop industry. Limitations and future research directions are also discussed.

• The Korean Journal of Community Living Science
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• v.26 no.3
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• pp.551-563
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• 2015

This study examines the mediating effects of social support on 1) the relationships between acculturative stress and depression/anxiety and 2) the relationships between emotional control and depression/anxiety in children from multicultural families. Pearson's correlations between variables were analyzed, and hierarchical regression analyses were conducted to identify direct and indirect effects of acculturative stress, emotional control, and social support on children's depression/anxiety. The sample included a total of 199 primary school students in grades 3 to 6 who lived in the Gwangju or Chonnam regions of Korea. First, there were positive correlations between acculturative stress and depression/anxiety and negative correlations between emotional control and social support. Second, social support from both peers and teachers partially mediated the relationships between acculturative stress and depression/anxiety. Third, social support from peers fully mediated the relationships between emotional control and depression/anxiety, and that from teachers partially mediated these relationships. The results suggest that social support from peers and teachers may reduce depression/anxiety in multicultural children as a mediating variable.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.16 no.1
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• pp.63-76
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• 2003

This Experiment was conducted to investigate the hemostatic effects of Guipitang and Guipitangjiaweifang. For this purpose, the effects of the crude extracts on the platelet count. prothrombin time, fibrinogen level and partial prothromboplastin time were estimated. The rats were divided into normal group, control group and experimental group. Control group was administrated normal saline and experimental group was divided into Sample 1 (Guipitang) and Sample 2 (Guipitangjiaweifang). The results obtained were as follows : 1. The platelet count was significantly increased in both of two samples as compared with the control group. 2. The prothrombin time was significantly shortened in case of Sample 2. however there were no significant changes in case of Sample 1 as compared with the control group. 3. The fibrinogen level was significantly increased in case of Sample 1. however there were no meaningful changes in case of Sample 2 as compared with the control group. 4. The partial prothromboplastin time was significantly shortened in both of two samples as compared with the control group. According to above results. it is supposed that Guipitang and Guipitangjiaweifang have the hemostatic effects in experimental animals.

• Physical Therapy Rehabilitation Science
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• v.11 no.4
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• pp.585-590
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• 2022

Objective: The purpose of this study was to investigate the effects of neuromuscular training of ballet dancers with chronic ankle instability on ankle stability and posture controlability. Design: A randomized controlled trial. Methods: A total of Thirty-twoyoung female ballet dancers with chronic ankle instability have voluntarily participated in the study. The participants were randomized to the neuromuscular training group(n₁=11), elastic resistance squat group(n₂=11), and control group(n₃=10). The intervention was applied to a total of 18 exercises per six weeks and conducted in each group for one hour a day, three times a week. All subjects were evaluated for Cumberland ankle instability tool(CAIT), static balance at before-after intervention. Results: In the comparison of the effects within the groups, the effect of the intervention on CAIT and posture control was significantly increased in the neuromuscular training group and elastic resistance squat group (p <0.05). In the comparison of the effects between the groups, the neuromuscular training group, and elastic resistance squat group were found to significantly increase more than the control group (p <0.05). The effect of ankle stability is similar in neuromuscular training and elastic resistance squat training, neuromuscular training is more effective in improving posture control rather than elastic resistance squat training. Conclusions: When planning a rehabilitation training program for a ballet dancer with chronic ankle instability, neuromuscular training can be applied as an intervention method to improve ankle stability and posture control ability.

• Journal of the Korea Society of Computer and Information
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• v.22 no.1
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• pp.89-97
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• 2017

This study examined the structural relationship between life stress perceived by university students and their gambling behaviors through their self-control and family support. For this, it conducted the questionnaire on life stress, self-control, family support and gambling behavior with 387 university students attending universities in Gwangju city and analyzed the data collected. The results of the analysis were described below. As a result of analyzing the direct effects of life stress on gambling behavior, self-control and family support, it was found that the life stress had the positive effect on gambling behavior and it meant that when the university students couldn't cope with the life stress effectively and felt frustrated, they were likely to be involved in gambling behavior to escape from their helplessness. In addition, as a result of analyzing the direct effects of life stress on self-control and family support, it was found that life stress had negative effect on self-control and family support. The more experiences of life stress they had, the lower their self-control was. As their life stress was higher, they didn't make supportive relationship network with family members. As a result of mediating effects, it was shown that self-control and family support played the partially negative roles in the relationship between life stress and gambling behavior and it suggested that as the life stress was perceived less, self-control was performed better and as family support was higher, gambling behavior was effectively reduced. These results of the research suggested that life stress could be handled actively through self-control and family support and development and distribution of the program to cope with life stress could minimize the gambling behaviors. Also the limitations of this study and necessity of further studies were discussed.

• Korean Journal of Health Education and Promotion
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• v.21 no.3
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• pp.1-17
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• 2004

The purpose of this study is to evaluate the roles of expected self-control and expected self-control results in explaining adolescents' Internet addiction. In the study model, expectations of self-control and self-control results directly determine Internet addiction and Internet use time meditates the impacts of expectations of self-control and self-control results on Internet addiction. The study subjects are 1,080 middle and high school students in Busan. Stratified cluster sampling is applied by school type and school year. The response rate is 96%(l,037cases). This study develops the scales of expected self-control and expected self-control results. The scales of Internet addiction are devised by using the concept of functional dependency such as salience, withdrawal symptoms, mood modification, tolerance, relapse, and conflict. For verifying the study model, path analysis and multiple regression models are applied for identifying path significants and evaluating confounding effects of control variables, respectively. Moreover, multi partial F-test is performed for selecting the best regression model. Expected self-control is a significant determinant of Internet addiction and Internet use time that also significantly explains Internet addiction. The total effect of expected self-control towards Internet addiction is -.95. The total effect is comprised with the direct effect (-.71) and the indirect effect(-.24). In this result, the direct effect refers a curative effect since expected self-control directly reduces the level of Internet addiction, and the indirect effect refers a preventive effect because self-control can reduce time of Internet use that is a direct determinant of Internet addiction. In the test of the confounding effects of control variables, there are no confounding effects in the models of multiple regression. It implies a robustness of the study model as regards control variables. In conclusion, improving adolescents' expected self-control can control Internet addiction level. This finding implies that a health promotion program for improving expected self-control can be a cost effective method compared to other approaches.

• Journal of Society of Preventive Korean Medicine
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• v.3 no.1
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• pp.1-33
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• 1999

In order to compare and study the effects of Kamipalmijiwhang tang(加味八味地黃湯) & Kamigangwhalsokdantang(加味羌活續斷湯) on inhibition of osteoporosis induced by ovariectomy, the author administered Kamipalmijiwhangtang & Kamigangwhalsokdantang to the sample groups per orally before and after ovariectomy. The author observed the activities of cathepsin L, K and the contents of calcium, calcitonin, osteocalcin and phosphorus in the serum for the biochemical index, the contents of IL-6 in the serum and bone marrow for immunological index, the state of bone loss in the metaphysis of tibia by histological study, the expression of ELAM-1 &collagen IV by immunohistochemical analysis, the expression of fos by immunocytochemical analysis. The results were as follows: 1. The activities of cathepsin L, K in the serum had a significant inhibitive effects in all sample groups compared with the control group. The inhibitive effects of Sample A-1 & B-1 was better than those of A-2 & B-2 and the inhibitive effects of sample B-1 & B-2 was better than those of A-1 & A-2. 2. The content changes of IL-6 in the serum and bone marrow had a significant inhibitive effects in all sample groups compared with the control group. The inhibitive effects of sample A-1 & B-1 was better than those of A-2 & B-2 and the inhibitive effects of sample B-1 & B-2 was better than those of A-1 & A-2. 3. In the histological study of tibial metaphysis all the sample groups inhibited bone loss significantly compared with the control group and expressed trabecula shape of bone similar to the normal group. 4. The expression of ELAM-1 & collagen IV decreased a little bit in sample A-2. It also decreased to a similar degree in sample B-2 like normal group and disturbed itself. 5. The expression of fos was inhibited in all sample groups compared with control group. The inhibitive expression of sample B-1 & B-2 was more remarkable than those of A-1. & A-2. 6. The serum calcium had a significant increasing effects in an sample groups compared with control group. Each sample groups didn't have any significant difference. 7. The serum calcitonin had a significant increasing effects in sample A-1, A-2 and B-1 groups compared with control group. Each sample groups didn't have any significant difference. 8. The serum osteocalcin and phosphorus didn't have any significant difference in all sample groups compared with control group.

• The Korean Journal of Community Living Science
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• v.25 no.2
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• pp.131-145
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• 2014

This study examines the effects of maternal behaviors and children's self-control ability on their subjective well-being. Data were collected from 416 fifth- and sixth-graders residing in Kwangju, Korea. Cronbach's ${\alpha}$ and the hierarchical regression analysis method were employed for a statistical analysis. According to the results of the hierarchical multiple regression analysis, children's self-control ability best explained their subjective well-being. For individual factors, motivational self-control had the greatest effect on subjective well-being, followed by behavioral self-control, cognitive self-control, the level of income, gender, and the employment status, in that order. The results for effects of maternal behaviors and children's self-control ability on children's subjective well-being highlight. The important roles played by the mother and the child's self-control ability in improving the child's subjective well-being. The study contributes to the literature by providing fundamental insights into children's higher quality of life.

• Women's Health Nursing
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• v.19 no.1
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• pp.57-65
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• 2013

Purpose: This study identified the effects of body weight control behaviors on bone mineral density (BMD) in Korean women aged 20 to 39 years. Methods: A secondary analysis of the 5th Korean National Health and Nutrition Examination Survey was conducted. Asian-Pacific criteria of BMI (Body Mass Index) and BMD were calculated for 1,026 women selected. The effects of body weight control behaviors were assessed using binary multiple logistic regression analysis while controlling for BMI. Results: Osteopenia and osteoporosis rates were 32.8% and 2.0%, respectively. About 69% of women performed weight control behaviors, and a combination of diet/exercise (22.7%) and drug added methods (10.9%) for weight control. Women who performed both diet control and exercise had a lower possibility to have abnormal BMD than those who did not try weight control (OR=0.67, CI=0.45~0.98, p=.039). Further weight control behaviors did not influence abnormal BMD. Conclusion: Body weight control should include proper diet and exercise in accordance with each woman's BMI level.

• Journal of Preventive Medicine and Public Health
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• v.53 no.5
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• pp.293-301
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• 2020

Objectives: At the beginning of the coronavirus disease 2019 (COVID-19) pandemic, some countries imposed entry bans against Chinese visitors. We sought to identify the effects of border shutdowns on the spread of the COVID-19 outbreak. Methods: We used the synthetic control method to measure the effects of entry bans against Chinese visitors on the cumulative number of confirmed cases using World Health Organization situation reports as the data source. The synthetic control method constructs a synthetic country that did not shut down its borders, but is similar in all other aspects. Results: Six countries that shut down their borders were evaluated. For Australia, the effects of the policy began to appear 4 days after implementation, and the number of COVID-19 cases dropped by 94.4%. The border shutdown policy took around 13.2 days to show positive effects and lowered COVID-19 cases by 91.7% on average by the end of February. Conclusions: The border shutdowns in early February significantly reduced the spread of the virus. Our findings are informative for future planning of public health policies.