• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.6
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• pp.197-208
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• 2018

The purpose of this study was to investigate levels of vocational identity, adaptation in a nursing school, and nursing student satisfaction with major and clinical practice, to examine their interrelationships, and to investigate predictors affecting the vocational identity of nursing students. The participants were 335 nursing students in D city who were surveyed from October to December 2016 using a self-report questionnaire. The data from 317 participants (response rate 94.6%) were analyzed. There was a statistically significant positive correlation between college adaptation, satisfaction with major, satisfaction with clinical practice, and vocational identity. In the multiple regression analysis, college adaptation, satisfaction with major, and satisfaction with clinical practice were factors significantly associated with the vocational identity. These three factors explained 50.6% of the vocational identity of nursing students. Due to the high turnover rate among new nurses, it is critical that nursing students have a vocational identity as nurses. In order to improve vocational identity, nurse educators should consider helping students to adapt to nursing college, and to become satisfied with major and clinical practice.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.6
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• pp.493-499
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• 2018

This study was conducted to investigate the mediating effects of walking days on body mass index (BMI) according to the public transportation satisfaction of middle aged Koreans aged 40-59 in Korea using the 2015 community health survey data. The purpose of this study was to provide basic data for provision of the neighborhood environment and support programs for the walking activity and promotion of daily walking activities among middle aged people. Among 228,558 individuals, 85,344 middle aged people aged 40-59 years were selected as final subjects for analysis. The data were analyzed with the open source statistics program R 3.4.1 to determine whether the number of walking days had a mediating effect on body mass index (BMI) as an independent variable. The Sobel test revealed that the number of walking days increased by B=0.010(p=.010), and that when the satisfaction with public transportation increased, B=-0.052 (p=.021), the number of walking days decreased by B=-0.038 (p=.001). To increase the number of walking days and decrease the body mass index by increasing public transportation satisfaction by increasing the use of public transportation, public transportation fare adequacy and access convenience among the public transportation satisfaction mentioned above should be improved more than the current level. It is not easy for individuals that live in small cities to reach their destination by public transportation after leaving the metropolitan area; therefore, improvement of public transportation systems is necessary to improve health.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.9
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• pp.374-383
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• 2018

This study was conducted to compare the unmet needs and quality of life of permanent and temporary ostomates. The research subjects were 128 ostomates with colorectal cancer or other advanced cancers. Data were collected by self-reported completion of the Comprehensive Needs Assessment Tool in Cancer (CNAT) and the City of Hope Quality of Life (COH-QOL) Ostomy Questionnaire from February 1 to April 5, 2018. Collected data were analyzed by chi-squared and independent t-tests using IBM SPSS 21.0. The results showed that the unmet need for temporary ostomates was significantly higher than that of permanent ostomates (t=-2.284, P=0.024). Moreover, temporary ostomates showed a higher unmet need for information and education (t=-2.747, p=0.007), psychological problems (t=-2.578, p=0.011), and physicians (t=-2.599, p=0.010). Although quality of life of temporary ostomates seems lower than that of permanent ostomates, there was no significant difference between groups (t=-1.364, P=0.0175). Therefore, it is necessary to develop a self-management program to provide appropriate information and psychological support for temporary ostomates.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.4
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• pp.190-200
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• 2020

This study examined the effectiveness of the 'Youth Technology Transfer Specialist Training Project' for students of natural sciences and engineering colleges implemented using a 2018 revised supplementary budget. The cause and effect research model composed of project satisfaction, results of employment, and start-up. Five factors were developed based on a literature review. A total of 2,363 questionnaires were collected through 66 Industrial-Academic Cooperation Groups participating in the Youth TLO (Technology Licensing Officer) program for an empirical test. SPSS 23.0 was used to analyze the obtained data empirically and verify the hypotheses. The result of the analysis showed that the following five independent factors were significant for the program satisfaction as well as the program satisfaction for the performance of employment and start-up: 1) project operation-related recruitment and selection, 2) training support, and 3) working conditions, 4) control of the project, and 5) activity support. This study verified the level of satisfaction with the program empirically using comprehensive data. In terms of practical implications, improvement of operational programs helps improve program satisfaction, and in turn, results in improvement of employment and start-up of youth to achieve the goals of government.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.9
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• pp.536-547
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• 2020

This study analyzed the correlation between adolescents' smartphone addiction as well as depression, self-esteem, and self-regulation based on QEEG (Quantitative Electroencephalogram) analysis. The study period was from March 19 to July 12, 2019, and the subjects were 76 students at P Middle School in Gyeonggi-do (normal group 47, risk group 29) who filled out a questionnaire and were subjected to quantitative EEG. The data analysis was performed via frequency analysis, independent t-test, correlation analysis, and path analysis of the IBM SPSS Statics 21.0 program. First, smartphone addiction had a positive correlation with depression. Second, smartphone addiction showed a negative correlation with self-esteem and α wave. Third, depression showed a negative correlation with self-esteem, which did not show a significant correlation with self-regulation. Fourth, depression was higher in the risk group than the normal group. For self-esteem, the normal group scored higher than the risk group. Self-regulation showed higher significant differences with the normal group than the risk group. Fifth, for α wave and SMR, the normal group scored higher than the risk group. Sixth, α waves had a negative effect on smartphone addiction. This study is meaningful in that it applied a brain science approach using quantitative analysis for objective evaluation of smartphone addiction.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.38 no.2
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• pp.337-347
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• 2018

The government has been operating residential improvement projects through the "Act on the Maintenance and Improvement of Urban Areas and Dwelling Conditions for Residents" as a type of a remedial measure for deteriorated residential areas. However, in recent years, the residential improvement projects have experienced difficulties due to the effects of various factors including the slowdown in economic growth. After observing the depression in a number of projects, various studies have been carried out to investigate the causality and improve the promotion of the residential improvement projects. In the trend of research, this study aims to analyze the effects of land and building characteristics on the improvement projects of Busan Metropolitan City. The dependent variables of the study represent different phases of improvement project as specified in the "Act on the Maintenance and Improvement of Urban Areas and Dwelling Conditions for Residents". The independent variables represent land and building characteristics which refer to the criteria used in the designation process of maintenance area according to the act. The empirical analysis uses the ordered logit model. The results from the analysis suggest that geographical condition, factors related to the number of union members, factors related to the parcel price and condition of a location have impact on the promotion of the improvement project. The results of the analysis show that majority of the factors are related to the economic feasibility of the projects. Residential improvement project is a part of urban planning projects that rehabilitates deteriorated residential environment, and it is closely associated with the quality of life of public. Accordingly, we hope that such projects are reasonable and take effective approach to those with urgent needs rather than to focus on profitability. Also, potential administrative and economical loss should be avoided by taking necessary planning measures in advance.

• Journal of Periodontal and Implant Science
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• v.30 no.2
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• pp.335-347
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• 2000

치주질환의 진행에 따른 치주조직파괴에 있어 치주조직내 다양한 세포외기질성분을 분해하는 matrix metalloproteinase-3(MMP-3)는 염증반응에 관여하는 세포들로부터 분비된 interleukin-$1{\beta}$(IL-$1{\beta}$)에 의해 유도될 수 있다. 이전 연구에서 치주인대세포에서의 MMP-3 생성이 tetracycline 및 tetracycline 유도체에 의하여 억제될 수 있음이 보고되었다. 이 연구의 목적은 metronidazole 및 doxycycline-HCl을 적용한 후 치은섬유아세포에 IL $1{\beta}$를 적용하여 MMP-3의 생성을 유도한 후 이들 약물들이 치은섬유아세포의 MMP-3 생성에 미치는 영향을 조사하기 위한 것이다. 건강한 성인으로부터 치주질환이 이환되지않은 상악 제2대구치 후방의 건강한 치은결합 조직을 절취하여 치은섬유아세포를 배양한 후 다양한 농도의 metronidazole (10-$200{\mu}g/m{\ell}$) 및 doxycyline-HCl(10-$200{\mu}g/m{\ell}$)을 각각 적용하여 1시간 배양하고 proMMP-3의 활성화를 유도하기 위하여 25ng/ml의 IL-$1{\beta}$을 투여한 후 24시간 배양하여 배양된 세포의 상층 배양액을 추출하고 proMMP-3 ELISA kit를 이용하여 비색정량하였다. 비색정량을 통하여 얻어진 자료들은 독립 t-test와 일원분산분석(ANOVA) 및 사후검정으로 Duncan test를 시행하여 다음과 같은 결과를 얻었다. 1. Metronidazole 경우 10-$200{\mu}g/ml$의 모든 농도군에서 proMMP-3의 활성도가 억제되었다(p<0.05). 2. Doxycycline-HCl의 경우 $100{\mu}g/ml$ 이하의 농도군에서는 proMMP-3의 활성도가 억제되었으나(p<0.05), $200{\mu}g/ml$ 농도에서는 proMMP-3의 활성도가 상승되었다(p<0.05). 3. Metronidazole과 doxycycline-HCl의 대조군에 대한 각 실험농도군의 proMMP-3 생성의 감소비율 비교시 모든 농도군에서 metronidazole이 doxycycline-HCl보다 더 높은 감소율을 보였다. 이상과 같은 결과는 metronidazole(10-$200{\mu}g/ml$)이 doxycycline-HCl($100{\mu}g/ml$ 이하) 보다 더 광범위한 혈중농도에서 IL-$1{\beta}$의한 인체치은섬유아세포내 MMP-3의 활성도를 효과적으로 억제할 수 있음을 시사하였다.

• Journal of Digital Convergence
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• v.14 no.2
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• pp.315-324
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• 2016

The purpose of the study are expected to provide some basic information on counseling, diagnosis and treatment planning for patients related to teeth care. A self-reported questionnaire was filled out by 320 subjects in Seoul and Gyeonggi from May to August, 2015 after permission from Institutional Review Board (IRB). Except 18 copies, 302 data were analyzed using SPSS WIN 19.0 program. The questionnaire consisted of four questions of the general characteristics of the subjects, ten questions of the awareness toward of subjective teeth, five questions of the influence of teeth on appearance, and ten questions of self-esteem. The dependent variables made a 23.4% prediction of self-esteem. If they have higher education(p<0.001), influence of teeth on appearance(p<0.001) and the awareness toward of subjective teeth(p<0.001) had significant influence on self-esteem. The findings suggest that heightened subjective awareness toward teeth seems to be of use for the improvement of self-esteem. Therefore it's required to make an effort to take good care of teeth in terms of color or arrangement as well as oral health.

• Journal of the korean academy of Pediatric Dentistry
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• v.34 no.1
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• pp.130-139
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• 2007

This study investigated the relationship between dental caries and various oral factors in subjects with Down's syndrome. We compared 25 subjects with Down's syndrome with 63 healthy control. The dental caries index and plaque index were examined, and the total salivary immunoglobulin A and S. mutans specific salivary immunoglobulin A concentration were measured using ELISA. The S. mutans counts, Lactobacillus counts and buffer capacity were measured with Dentocult test medium. The decayed and filled surface index of deciduous teeth in subjects with Down's syndrome was lower than in controls(p<0.001). The plaque index and total salivary immunoglobulin A concentration showed no difference, S. mutans specific salivary immunoglobulin A concentration and buffer capacity in subjects with Down's syndrome were lower than in controls(p<0.001). There was no significant difference between two groups in the S. mutans counts and Lactobacillus counts. In 9-11 year age group, S. mutans counts in subjects with Down's syndrome was lower than in controls(p<0.001) and S. mutans specific salivary immunoglobulin A concentration was lower(p<0.05). There was a high correlation among deciduous dental caries index and buffering capacity and S. mutans counts.

• Korean Journal of Environment and Ecology
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• v.29 no.4
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• pp.636-644
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• 2015

In this paper, we examined factors that affect the success of a policy on trekking time restriction using questionnaire survey data collected from the visitors of seven national parks where the trekking time restriction policy is in force as of 2014. Results suggest that the trekking time restriction policy has been successfully publicized. In total, 60.7% of the survey respondents were aware of trekking time restrictions in the national parks they were visiting. Using exploratory factor analysis, we identified three latent factors (visitors' careless trekking, park rangers' insufficient management and visitors' unpreparedness) that the visitors perceived the causes of trekking accidents in the national parks. Multiple regression analysis on the three extracted factors and respondents' socioeconomic status shows that the respondents who read information signs in national parks and who judged visitors' careless trekking and visitors' unpreparedness as the causes of trekking accidents tended to agree more with restricting trekking time. These results indicate that visitors who do not agree with the trekking time restriction tend to attribute trekking accidents in national parks not to individual visitors, suggesting that educating visitors is more effective in preventing trekking accidents in national parks than installing and maintaining safety facilities by park rangers.