• Journal of the Korean Society of Food Culture
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• v.17 no.4
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• pp.387-398
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• 2002

The purpose of the this study was to investigate the dietary behavior and the food habits of university freshman according to body mass index. Questionnaire were completed by 532 students in university freshman. The data were analyzed by SAS program. The results were as follows : The means of normal group's height, weight were $175.00{\pm}5.98cm,\;72.93{\pm}10.20kg$ for male students and $162.00{\pm}4.75cm,\;51.97{\pm}4.98kg$ for female students. Under 20 of BMI(body mass index) among students were 69.7% for male and 9.6% for female. $Twenty{\sim}twenty\;five(20{\sim}25)$ of BMI were 21.9% for male and 40.2% for female. The consumption of milk, oil and animal fat were significant according to BMI. There was high significant difference in the score of exercise and activity. In the self recognition of body shape 59.0% of male and 52.6% of female in normal weight group answered that their weight had to be a little thin. Self satisfaction rate was significantly higher in under weight group compared to normal weight group. This study suggest that a comprehensive nutrition education program is need for university students to improve desirable food habits and recognition of rate of figure.

• Journal of Labour Economics
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• v.25 no.1
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• pp.131-160
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• 2002

This article tried to find out the individual wage effect of training. This Article used 1998, 1999 KLIPS(Korea Labor and Income Panel Study) panel data. The size of the individual wage effect of training was twice of tenure's, and had significance. Training had a good effect on the job satisfaction and carrier development. To overcome self selection bias, this article regressed the first difference of wage equations, but we didn't get the significant results. Dividing sample into quitters and non-quitters in order to investigate the relation between training cost and benefit, we regressed separately the each first difference of wage equation. On quitters, the individual effect of training appeared significantly, but on non-quitters, it didn't. This results mean that employer does not raise wage rate according to upgraded skill originated in incumbent's training. And the results also mean that the upgraded skill of employee who quit pre-employer is recognized by new employer, and his wage rate rises in his new job.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.12
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• pp.7060-7067
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• 2014

The reading activity of university students is the key element for the cultivation of creative human resources, and each university develops and performs the various cultural education and library program. Actually, the university libraries check the service periodically through library satisfaction surveys and the library user's actual condition survey to improve it, but the amount of reading, number of books lent and the rate of borrowers are still under expectation. Therefore, in this research, an in-depth analysis of lending books data for freshmen, as the service improvement and revitalization measures of university libraries for students, suggested the following: (1) the early education for the library users, (2) the opening of the students-participating library collections, (3) the use of the data using a library for the consulting with students (4) the establishment of the library depositary for education support, and (5) the introduction of the library CRM for individual student. Through this result, it would be substantially helpful for each university library (including two-year college), in which the number of lending books and the rate of borrowers are below expectations.

• Quality Improvement in Health Care
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• v.10 no.2
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• pp.154-163
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• 2003

Purpose: The aim of this study is to develop and apply the critical pathway to the nasal bone fracture patients and to elucidate its effect. Methods: Critical pathway (CP) sheet and questionnaire were developed by a team approach. Critical pathway were applied to 30 nasal bone fracture patients (CP group) from June 2001 to November 2001. Length of hospitalization, cost for hospitalization and bed turnover rate of CP group were compared to those of the 30 patients who had same disease entities and treated by conventional regimen (control group). Results: Length of hospitalization in the CP group (4.20 day) were significantly shorter than that of control group (6.21 day). Mean cost for hospitalization of the CP group (492,106 won) were significantly lower than that of control group (678,376 won). Bed turnover rate in CP group (2.5) were higher than that of control group. The patients satisfaction for the medical personnel, explanation regarding operation procedure, therapeutic operation fee, and length of hospitalization were all affirmative. Conclusion: Critical pathway that we developed for nasal bone fracture definitely improved the quality of treatment and lowered cost of medical service. Furthermore, other critical pathways should be developed for another facial trauma patients.

• Journal of Convergence for Information Technology
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• v.10 no.10
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• pp.65-70
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• 2020

With the appearance of Bitcoin that builds peer-to-peer networks for transaction of digital content and issuance of cryptocurrency, lots of blockchain networks have been developed to improve transaction performance. Recently, Joseph Lubin discussed Decentralization Transaction per Second (DTPS) against alleviating the value of biased TPS. However, this Lubin's trust model did not enough consider a security issue in scalability trilemma. Accordingly, we proposed a trust metric based on blockchain size, stale block rate, and average block size, using a sigmoid function and convex optimization. Via numerical analysis, we presented the optimal blockchain size of popular blockchain networks and then compared the proposed trust metric with the Lubin's trust model. Besides, Bitcoin based blockchain networks such as Litecoin were superior to Ethereum for trust satisfaction and data volume.

• Convergence Security Journal
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• v.15 no.2
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• pp.19-24
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• 2015

As the Internet usage such as Web3.0, future internet, and internet of things increases, the big data through information exchange between the users and web servers increases. Analyzing those web data, the commercial web sites use the analytic results for marketing and campaign, and non-commercial web sites also use the results to improve the user's services satisfaction. In this paper, the quantitative index is presented to analyze the web sites, and optimized web site design method is also presented through the correlation analysis of index and significance test. From the results for 138 web sites, it is observed that strong plus(+) correlation for visits-unique visitors and page views-average visit duration exists. We also observe the minus(-) correlation between bounce rate and page views per user(or ratio of new visits). In specific, to reduce the bounce rate for users, the strategy to increase the page views and ratio of new visits rather than visits and unique visitors is needed.

• Korean Journal of Health Education and Promotion
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• v.22 no.1
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• pp.17-40
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• 2005

This study was aimed to analyze the status of the a health education and the health behavior, and to identify the effected factors of health promotion behavior based on Green's PRECEDE Model among high school students The data was collected by interview survey with self-administration questionnaire from the selected high school students during the end of the second semester, 2001, and 1,591 students are analyzed. The statistical method of the analysing for effected factors of health promotion behavior was used the Multiple Linear Regression Analysis by SPSS package program. The results of this study are as fellows. 1. The index of the health educational contents shows the 18.14 points per 86 points, 18.96 points in girl students, 17.53 points in boy students. 2. In the index of health promotion behaviors was 84.9 points per 140 full points in all average; 61 points per 100 points. The experienced rate of smoking was $35\%$ of all students, $38.5\%$ of boy students, $30.6\%$ of girl students each. The experienced rate of drinking was $62.2\%$ of all students, $61.6\%$ of boy students, $69.4\%$ of girl students. 3. The effected factors of the health promotions behaviors to analyse by multiple linear regression model was sports activity, the degree of satisfaction of their school life, the academic records of school, the present health conditions, their awareness for hazard of smoking for their health, the experiences of the smoking, their stresses(R$^2$ =0.174). and the factors as the experiences of drinking, their stresses, and the indexes for the health education contents in their school were added in girls students.

• Korean Journal of Social Welfare
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• v.67 no.3
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• pp.181-201
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• 2015

This study conducted a longitudinal analysis to identify the impact of social capital on depression trajectories in later life. For data analysis, the Korean welfare panel data(2006-2012) was utilized and 4001 older adults aged 65 and older were included in the final sample. The results showed that social trust was significantly associated with depression scores at baseline but did not predicted the rate of change in depression over time. A higher level of reciprocity significantly predicted the faster decline in depression over time. For social participation through donation or volunteer, the percentage of participation was very low and it was not significantly related to depression trajectories. Finally as the satisfaction from social relationship becomes more positive, the rate of change in depression tended to decline faster over time. The results of this study indicates that in order to prevent or delay depression in later life, we should help older adults accumulate positive social capital such as social trust and reciprocity through active social interaction.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.7 no.2
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• pp.9-17
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• 2012

This paper integrates elements from the theory of agency, the entrepreneurship education, the start-up policies. Entrepreneurship education is demanded to enhance success of business candidate for business establishment and to increase start-up survival. Three researches are made by this study. First of all, Educational performance is measured and it explains why linked policies is needed. To explain linked performance, this paper introduces several hypothesis. These are about a rate of start-up failure caused by agency problem and a rate of education effect decreasing agency problem. Secondly, operation performance of it can be increased by linking among policies and should be for the original goals of start-up policies. Finally, several ideas including start-up certification is proposed. Start-up certification has role of contact point of different entrepreneurship policies. As a result, level of satisfaction of policies will increase and specially of education program by linked effects.

• Journal of the East Asian Society of Dietary Life
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• v.16 no.3
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• pp.272-280
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• 2006

This study examined the weight control and food habits in 160 obese children and 191 normal-weight children in 4th, 5th and 6th graders of some elementary schools in Gumi city. Regarding the subjects' self-recognition of their body shape, 27.8% of the normal weight group and 92.5% of the obese group acknowledged themselves to be obese. 58.9% of the normal weight group and 61.0% of the obese group were not satisfied with their own body shape and the difference between two groups was very small, 23.6% of the normal weight group and 87.5% of the obese group have tried to reduce weight. The main causative factor of weight gain that children themselves recognized was a sedentary life style. All the students showed a high rate of irregular and unbalanced diet. The obese children showed a significantly higher rate of skipping meals and eating meals faster than the normal weight children. More obese children disliked exercise, and did less excercise than the normal weight children. There was a negative correlation between the obesity index and the food habit score. In other words, they frequently skip a meals, eat in a hurry and dislike vegetables and dairy products. In addition, there was a positive correlation between the student's BMI and the parents' BMI. Overall, many normal weight children showed a high level of self-consciousness of being obese or underweight. Both groups showed a low degree of satisfaction with their own body shape. Therefore education for the distorted perception of body shape is needed because, even normal weight children have tried to reduce their weight. Obese children should be encouraged to exercise, not skip a meals and eat slowly. They also need a systematic education program on weight reduction and weight maintenance. Moreover, education on a healthy diet, healthy food habits, and healthy body shape are necessary for elementary school children.