• Journal of Magnetics
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• v.19 no.2
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• pp.192-196
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• 2014

The aim of the present study was to examine the effects of high and low frequency repetitive transcranial magnetic stimulation on motor cortical excitability and the balance function in subacute stroke patients. Twenty-four subjects were randomly assigned to either the high frequency (HF) rTMS group, or the low frequency (LF) rTMS group, with 12 subjects each. All subjects received routine physical therapy. In addition, both groups performed a total of 20 sessions of rTMS for 20 minutes, once a day, 5 times per week, for a 4-week period. In the HF rTMS group, 10 Hz rTMS was applied daily to the hotspot of the lesional hemisphere; and in the LF rTMS group, 1 Hz rTMS was applied daily to the hotspot of the nonlesional hemisphere. Motor cortex excitability was determined by motor evoked potentials, and the balance function was evaluated by use of the Balance Index (BI) and the Berg Balance Scale (BBS), before and after the intervention. The change rate in the value of each variable differed significantly between the two groups (p<0.05). Furthermore, significant differences were observed between all post-test variables of the two groups (p<0.05). In the HF rTMS, significant differences were found in all the pre- and post-test variables (p<0.05). On the other hand, in the LF rTMS, significant difference was observed only between the pre- and post-test results of BI and BBS (p<0.05). The findings demonstrate that HF rTMS can be more helpful in improving the motor cortical excitability and balance function of patients with subacute stroke treatment than LF rTMS, and that it may be used as a practical adjunct to routine rehabilitation.

• Journal of the Economic Geographical Society of Korea
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• v.19 no.2
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• pp.265-285
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• 2016

This paper analyses the regional financial market of Kyungbuk-East Coast region. The result shows that the credit unions do not do much for easing the credit constraints of small firms in the region. Many papers suggest that it is necessary for them to adhere closely to the regional economy. But they do not do their best to collect borrowers' private informations. Instead they rely on the credit scoring system to assess their creditworthiness and require collaterals to reinforce their weak credits. That is the real root of weak competitiveness of credit unions. To overcome such a problem they need to actively participate in the development of the regional economy, bearing in mind the cooperative principles, especially commitment for the community. On the other hand the government should contrive plans to foster them. When they function actively the regional financial market will become efficient and the regional economy grow smoothly.

• Journal of Convergence for Information Technology
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• v.8 no.2
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• pp.11-18
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• 2018

The purpose of this study was to analyze the effects of Socio-demographic Characteristics, perceived stress and depression of college students in Daegu and Kyungbuk provinces on problem drinking behavior. The subjects of the study were 295 college students who understood and agreed on the purpose of this study and conducted questionnaires using structured questionnaires. Data were analyzed with frequency, percentage, mean, standard deviation, t-test, ANOVA, Scheffe test, pearson correlation coefficient, and multiple regression analysis. The results showed that depression was the most influential factor in the problem drinking behavior of college students in Daegu and Kyungbuk provinces, followed by gender, academic performance, and residental type. Therefore, it is necessary to develop an intervention program that takes into account the social psychological approach to prevent depression of college students and the characteristics of gender, academic performance, and residental type in order to prevent problem drinking of college students.

• Journal of Korean Society of Transportation
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• v.27 no.5
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• pp.135-144
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• 2009

This study estimates the expected number of accidents in Kyungbuk Province to capitalize on experience gained from four years of accident history using the Empirical Bayes (EB) Method. The number of accidents of each site in Kyungbuk Province is recalculated using the Equivalent Property Damage Only (EPDO) method to reflect the severities of the accidents. A cluster analysis is performed to determine similar sites and a unique Safety Performance Function (SPF) is established for each site. The overdispersion parameter is built to correct the difference between the actual number of accidents and the underlying probability distribution. To adjust for varying traffic characteristics of each site, a relative weight is applied and eventually estimates the expected number of accidents. The results show that the highest accident sites are Kimcheon, Youngcheon, and Chilgok, but on the other hand the lowest is Gunwi.

• Journal of Korean society of Dental Hygiene
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• v.19 no.2
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• pp.287-295
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• 2019

Objectives: The purpose of this study was to investigate the factors affecting subjective oral symptoms according to the gender of youth from multi-cultural families in Korea using data from the 14th (2018) Korean Youth Health Behavior Survey. Methods: The independent variables used in this study consisted of gender and sweet drink intake. The dependent variable was experience of subjective oral symptoms. Compensation variables consisted of general characteristics of school type, academic performance, economic status, drinking status, smoking status, and number of tooth brushings day before. The subjects of the study were 835 children of multi-cultural families whose parents were foreigners. All statistical analyses were performed by complex samples cross-tabulation analysis and complex samples logistic regression analysis. Statistical analysis was performed using the PASW statistical package 21.0 (Statistical Packages for Social Science Inc., Chicago, IL, USA). A significance level of 0.05 was used for statistical significance. Results: The composite sample logistic regression analysis showed that there was a statistically significant difference between gender and intake of sweet drinks in experience of subjective oral symptoms. Conclusions: These results suggest that factors influence subjective oral symptoms in Korean multi-cultural adolescents. Therefore, I hope that they will be used as basic data for the introduction and development of a customized oral health education program for improving oral health of multi-cultural adolescents.

• Journal of Korean society of Dental Hygiene
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• v.21 no.6
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• pp.741-750
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• 2021

Objectives: To provide basic data for oral health policy by identifying the differences in oral health behaviors and conditions among middle-aged people in their 40s and 50s and relating these to their health-related quality of life, and to identify factors affecting health-related quality of life. Methods: In this study, secondary data from the National Health and Nutrition Examination Survey were used. Data were gathered from 8,127 participants, of which 2,353 were middle-aged (40-59 years old). Covariance analysis was performed using a complex sample general linear model to investigate the changes in the subjects' health-related quality of life (EQ-5D) according to their general characteristics, oral health behaviors, and oral health status. Results: Oral health behavior was not significantly related to health-related quality of life. In contrast, a higher oral health status (chewing function) was associated with better health-related quality of life. Conclusions: In conclusion, this study suggested a close relationship between oral health status (chewing function) and health-related quality of life. Therefore, it is necessary to recognize the importance of oral health in improving the health-related quality of life of middle-aged people in their 40s and 50s, as well as in informing oral health policies and preventive measures for individuals and communities.

• KIEE International Transactions on Power Engineering
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• v.11A no.4
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• pp.1-8
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• 2001

This paper presents a discrete wavelet transform approach for detecting voltage sags initialized by fault conditions and starting of larger motors. The proposed technique is based on utilizing the summation value of D1(at scale 1) coefficients in multiresolution analysis(MRA) based on the discrete wavelet transform. In this paper, the proposed technique is tested under various cases of voltage sags. It is shown that the voltage sag detection technique based on the wavelet transform is a satisfactory and reliable method for detecting voltage sags in power quality disturbance analysis.

• 한국문화재보존과학회:학술대회논문집
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• 2005.11a
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• pp.190-194
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• 2005

• 한국약용작물학회:학술대회논문집
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• 2007.05a
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• pp.233-234
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• 2007

• 한국약용작물학회:학술대회논문집
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• 2007.05a
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• pp.205-206
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• 2007