• The korean journal of orthodontics
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• v.22 no.3 s.38
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• pp.691-701
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• 1992

Over recent 20 years, with socioeconomic development and change of recognition of the population, more people are concerned about their health and appearance. To obtain the change of frequency of malocclusion and the demand for orthodontic treatment, with this trend, 2460 freshmen and students of Yonsei Univ. in 1991, aged from 18 to 21 were examined excluding 187 students who have history of orthodontic treatment, 86 students who are undergoing treatment, 39 students who have too much missing teeth to classify. After analize the frequency of malocclusion and the demand for orthodontic treatment, following results was obtained. 1. Sex ratio in the prevalence of malocclusion was $91.7\%/90.8\%$, male to female, so there was no sex predilection. 2. With regard to Angle's Classification, each percentage of Class I, Class II div. 1, Class II div. 2 and Class III was $61.6\%,\;11.3\%,\;1.9\%\;and\;16.7\%$. 3. Of Class I malocclusion, percentage of crowding was 53.2, this occupied the largest part of single findings and prevalent findings in combinations were also crowding - crossbite and crowding - Protrusion. 4. Of Class I malocclusion, over the portion of$95\%$, Bialveolar Protrusion have arised alone. 5. The distribution of Demands for orthodontic treatment of malocclusion were $41.3\%$ in males, and $51.3\%$ in females.

• Journal of the East Asian Society of Dietary Life
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• v.16 no.4
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• pp.481-487
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• 2006

Coupons that restaurants are competitively issuing have considerable effects on company profits, depending on the performance of redemption rate. The purpose of the study is to identify the coupon type that consumers most prefer, among coupon types the most frequently issued restaurants, and to investigate consumers' coupon redemption rate and revisit intention based on brand familiarity. In this study, freshmen and sophomores in the 2-year colleges and the universities located in Seoul and Kyoungi province were sampled by convenience sampling, and surveyed about 3 coupon types (free meal coupon, discount rate coupon, discount price coupon) with 150 copies of questionnaire for each type, totally 450 copies randomly distributed. As a result, relationship between coupon redemption intention and revisit intention based on brand familiarity was that, the higher brand familiarity was, the higher coupon redemption intention and revisit intention were, regardless of coupon types. This study lies in that it approached to discount method, one of the coupon types, by further subdividing into discount rate and discount price, and that redemption intention and revisit intention were studied by taking account of coupon familiarity.

• Culinary science and hospitality research
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• v.12 no.1 s.28
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• pp.111-125
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• 2006

This study aims to find out how taste recognition differs between two groups of culinary arts students. We conducted a questionnaire survey on minimum sensitivity and minimum tastiness for four basic tastes. The first group consisted of 40 students in their first year, and the second group consists of 56 students in their second year and third year. The survey shows that both groups preferred medium saltiness, and the second group was more favorable to sweetness than the first group. The sweet and the pungent tastes were more favored than sourness and less favored than bitterness by both groups of subjects. The amount of the sample required for minimum tastiness shows that the freshmen had a higher sensitivity than the sophomore and junior students. Contrary to a common belief that people who have more experience in cooking would have a more sensitive taste, this study shows that taste sensitivity does not always accord with cooking experience. Rather, it depends on individual differences and current health status. Further research should be needed for various sensory test method and more kitchen experienced people who has more working years after graduate college.

• Communications of Mathematical Education
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• v.19 no.4 s.24
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• pp.633-647
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• 2005

The rapid change in school mathematics curricula occurred over last some periods requires lots of change or improvement in the education method for the university mathematics, especially in calculus. As an effort in this direction we restrict our concern to the freshmen of year 2002 of the Korea university of technology and education to investigate a correlation between their mathematics score on the national entrance examination and achievement score measured by their final grades in a calculus course. As a result of this research we propose a step-wise level educational model for the calculus education. In the model an appropriate teaching contents and method proceeding through the three steps are suggested and implementation issues are discussed. We believe that carrying out mathematics curricular are suggested in the model will be of service to calculus education particularly for student under the 7th national curriculum reform.

• Journal of Korean Biological Nursing Science
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• v.11 no.2
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• pp.183-194
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• 2009

Purpose: It is aimed to empirically apply and examine the effects of Creative Training Techniques (CTT) that focus on student-centered educational environment to an anatomy subject for biological nursing science education. Methods: A triangulation that combines cross-sectional survey and content analysis was used and the data were collected in 2008. Participants were 301 freshmen students attending one junior nursing college in Seoul, Korea. A questionnaire was distributed to 301 students, 289 of whom responded (response rate 96.0%), and used for data analysis. Factor analysis, reliability analysis, and descriptive statistics were conducted by using data analysis SPSS 14.0 KO for Windows programs. In addition contents analysis was conducted. Results: 1) CTT Increased the relationship between professor and students ($3.12{\pm}0.92$), 2) Students preferred the various team leader choosing method ($3.25{\pm}0.93$), 3) Model and image materials helped the learning ($3.71{\pm}0.89$). Conclusion: CTT can be used to enhance students' learning effectiveness. Intervention programs intensified by CTT may be useful to improve students' learning abilities in nursing science education.

• Korean Journal of Childcare and Education
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• v.15 no.6
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• pp.77-98
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• 2019

Objective: The purpose of this study was to examine the effect of adolescents' callousness on reactive and proactive aggression through moral disengagement. Methods: The participants were 315 freshmen and sophomore high school student in Korea. The data were analyzed with Structural Equation Modeling(SEM). Results: First, adolescents' callousness did not show a significant influence on reactive aggression directly or indirectly through moral disengagement. Second, adolescents' callousness had a significant influence on proactive aggression directly and indirectly through moral disengagement. That is, adolescents' high level of callousness not only predicts a higher level of proactive aggression directly, but also influences moral disengagement which may result in a high level of proactive aggression. In addition, the gender difference in this model was confirmed. Conclusion/Implications: The results of this study indicated that adolescents' callousness could have different influences on aggression through moral disengagement by the types of aggression and gender. The results suggest that it is necessary to approach the emotional and cognitive process of adolescent aggression differently, depending on the type of aggression and gender.

• Korean Journal of Health Education and Promotion
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• v.21 no.1
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• pp.259-283
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• 2004

This is an quasi experimental study using nonequivalent pre-test post-test control design for the development of the CAI program and an analysis of its effects, for nursing college students to learn emergency patient triage. This program was developed from November, 2000 to middle of September, 2001 with the aid of curriculum design experts. The subjects of this study were 86 randomly sampled freshmen students of C nursing college in Ulsan. They were divided into 45 for the test group and 41 for the control group. The CAI program for the learning of the emergency patient triage has been developed on the basis of Merrill's Component display theory and Keller's ARCS theory and through the curriculum design process of Hannafin ＆ Peck. It has also been done with the use of Tool book 8.0, the multimedia righting tool. The experiment to verify the effect of the CAI program has been carried on from September, 20 to October, 8 2001. There were six hypotheses to accomplish the purpose of the study, and the analysis of the data was done with the use of SPSS/win program. As a result of this study, the author concluded that this CAI program is an effective mediation method to promote the learning accomplishment and learning motive for nursing college students. Therefore in the field of emergency nursing education, it would be possible to use this program as means for widening the possibility of self-learning and to promote individual learning of nursing college students.

• Journal of Families and Better Life
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• v.32 no.1
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• pp.63-79
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• 2014

Recently, in our society, the use of smartphones has been widespread and changed our lives positively; however, the excessive use of smartphones has also produced many side effects. In particular, we can see that the reckless use of smartphones has constantly increased smartphone addiction propensities. University students, too, show smartphone addiction propensities more and more gradually; therefore this study intends to perform research related with smartphone addiction propensities with university students as the subjects. Since it is more and more important to perform leisure activities to prevent smartphone addiction and reduce addiction propensities, it can be said that the research on the correlation between leisure activities and smartphone addiction propensities is significant. The major findings of the research are as follows: First, among the smartphone addiction propensities, their tolerance and disturbance of adaptive function were relatively higher than other factors. Second, overall smartphone addiction affects the variables of gender (male), school year (freshmen), economic leisure constraints, time leisure constraints, and the adequacy of travel behavior, sports behavior, media use behavior, reading behavior, volunteer work and religious behavior. The adequacy of the media use behavior variables showed the greatest impact.

• Journal of Engineering Education Research
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• v.15 no.4
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• pp.8-13
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• 2012

The Engineering school of Tohoku University has been offering a Team-based Engineering Design Course to its first year students since 1996 in order to increase the level of both motivation and interest in engineering. Freshmen are required to select one of approximately 150 topics and do some research on this topic. This course also provides opportunities for students to participate in exchange programs with the University of Washington (UW) and the University of Science and Technology Beijing (USTB). In the Tohoku-UW exchange program, which began in 1999, between 10 and 25 students of Tohoku visit the UW annually to present the results of the subjects the school has appointed in advance in the Team-based Engineering Design Course. In the Tohoku-USTB exchange program, which began in 2007, about 15 students from each university participate in a one day meeting organized by the students themselves. They give a presentation on either the results of the subject they selected in the course, or on an engineering related topic both groups have agreed to in advance. In this paper, a detailed history, the objectives, a schedule and the budget in these unique exchange programs is introduced together with an outline of the course and its contribution to the engineering design education.

• Journal of Engineering Education Research
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• v.13 no.5
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• pp.15-19
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• 2010

Upon request from the Tokushima Prefectural Senior High School of Science and Technology, two faculty staff members and eight students of The University of Tokushima visited the high school and set up a chemistry laboratory class for 59 students. Since the participating senior high school students were freshmen, four simple, safe and visual experiments were selected: 1) Water purification, 2) Surface modification, 3) Briggs-Rauscher reaction, and 4) Polymer synthesis and characterization. All experiments received a favorable reception as a follow-up questionnaire verified. Since the high school students enjoyed the experiments it is hoped that the results will strengthen the students' interest in chemistry. It was good opportunity for the observers; they recognized the difficulty of teaching students.