• Journal of Korea Port Economic Association
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• v.22 no.3
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• pp.141-160
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• 2006

In order to obtain and maintain competitive advantage, under rapidly changing maritime environment, liners should make efforts to reinforce their logistics service capabilities. Most of all, for this, shipping lines should accurately recognize and evaluate their logistics service attributes. In the present research, various logistics service attributes for ocean carriers were selected from previous studies and the observed data for 6 main service attributes were collected through a questionnaire survey to 31 maritime experts. Moreover, shipping lines' relative logistics service capabilities were measured by an additional survey process. The comparative gravity between core evaluation factors were measured by AHP technique and the relative capability levels of 2 Korean liners and 5 foreign shipping companies were assessed by utilizing a fuzzy model. The empirical result presents that Korean liners are superior at customer service capability but inferior at freight rate competitiveness. This research shows that Korean liners are ranked at high position for overall logistics service capabilities and focusing on the differentiation strategy but not on the cost related strategy.

• Journal of Convergence for Information Technology
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• v.8 no.3
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• pp.115-125
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• 2018

The purpose of this study was to examine the level and related factors of dating violence tolerance and dating violence recognition. 365 self-reported survey was collected from students in B university in Chungcheongnam-do. The data were analyzed by descriptive statistics, t-test, and Pearson's correlation using SPSS 22.0 program. It was found that the level of college students' dating violence tolerance was low and the level of dating violence recognition was high. There was no significant relationships between the factors related demographic, dating, sexual violence education related characteristics and dating violence tolerance and dating violence recognition. However, the levels of dating violence tolerance and dating violence recognition were significantly related. Based on these results, implications for dating violence prevention and intervention and the directions for future research in this area were suggested.

• Journal of The Korean Association For Science Education
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• v.43 no.1
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• pp.29-36
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• 2023

This study investigates the effects of the operation of science activity program on scientific literacy focusing on science cultural literacy and core competencies for pre-service teachers. 255 pre-service teachers of K University participated, and the effects of the program were examined through a paired-sample t-test with one group pretest-posttest design for science cultural literacy. Only the post-test was conducted on core competency growth perception, and differences in growth perceptions by competency were compared using ANOVA. As a result of the study, the average of pre-service teachers was higher than the pre-test for science culture literacy, and this difference was statistically significant (p<.05). In the core competency growth perception, 70.6% of pre-service teachers reported growth in scientific communication ability, and as a result of the post-hoc test using LSD, it shows statistically significant growth compared to other competencies (p<.05). Through this, it was possible to confirm the educational value of the science activity program as a way to develop pre-service teachers' scientific literacy.

• Journal of the Korea Society of Computer and Information
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• v.29 no.5
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• pp.155-164
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• 2024

This study proposes an unsupervised learning-based clustering model to estimate the ESG ratings of domestic public institutions. To achieve this, the optimal number of clusters was determined by comparing spectral clustering and k-means clustering. These results are guaranteed by calculating the Davies-Bouldin Index (DBI), a model performance index. The DBI values were 0.734 for spectral clustering and 1.715 for k-means clustering, indicating lower values showed better performance. Thus, the superiority of spectral clustering was confirmed. Furthermore, T-test and ANOVA were used to reveal statistically significant differences between ESG non-financial data, and correlation coefficients were used to confirm the relationships between ESG indicators. Based on these results, this study suggests the possibility of estimating the ESG performance ranking of each public institution without existing ESG ratings. This is achieved by calculating the optimal number of clusters, and then determining the sum of averages of the ESG data within each cluster. Therefore, the proposed model can be employed to evaluate the ESG ratings of various domestic public institutions, and it is expected to be useful in domestic sustainable management practice and performance management.

• Industry Promotion Research
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• v.9 no.1
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• pp.179-187
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• 2024

This study aims to develop policies and programs to improve self-differentiation that will have an impact on establishing a positive view of marriage among college students by examining and confirming the impact of college students' self-differentiation on their views on marriage among college students in early adulthood. This is an attempted research study. For this purpose, a self-report online survey was conducted and analyzed among 204 college students attending a university in northern Gyeonggi Province. The analysis method used SPSS 25.0 program to calculate internal consistency, frequency analysis to identify the general characteristics of the research subject, descriptive statistical analysis to determine the level of the research variable, and differences in research variables according to the characteristics of the research subject. To find out, an independent samples t-test, analysis of variance, and post hoc test were conducted, and analysis using SPSS Process Macro was conducted to verify the mediation effect. The results of the analysis showed a positive (+) correlation between self-differentiation and views on marriage, which suggests that self-differentiation has a significant impact on establishing a positive view on marriage, and for this purpose, it is necessary to establish a positive view on marriage among college students. To this end, we aimed to provide basic data to support education for healthy families through national policy.

• The Journal of the Korea Contents Association
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• v.17 no.11
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• pp.264-273
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• 2017

The purpose of this study was to identify the relationship between volunteer activities and emotional intelligence on the major satisfaction level of nursing college students. This study was a descriptive research design to investigate 252 nursing college students in a university. The data were collected using self-reported questionnaires and analyzed by descriptive statistics, frequency analysis, t-test, one-way ANOVA, correlation analysis, and multiple regression analysis using dummy variables. As a result of the study, 71.8% of the students had experienced volunteer activities. The average level of emotional intelligence of all participants was 4.84 points out of 7, and the major satisfaction level was 3.87 points out of 5 points, each of them was above middle level. The correlations among the attitude of volunteer activity, emotional intelligence, and major satisfaction were statistically significant. The attitude of volunteer activity and emotional intelligence (r=0.329), the attitude of volunteer activity and major satisfaction (r=0.271), emotional intelligence and major satisfaction(r=0.525) showed a statistically significant difference at the significance level of 0.01. There were grade, university life satisfaction, and emotional intelligence as factors affecting major satisfaction, and the explanatory power of these factors was 41.6%. In order to improve the major satisfaction level of nursing students based on the results of this study, it was confirmed that various strategies are needed to improve university life satisfaction and emotional intelligence.

• Journal of the Korea Convergence Society
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• v.6 no.4
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• pp.47-54
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• 2015

This study was conducted an convergence research on 210 mothers in order to examine the effect of golf on subjective happiness of mothers who have children with disabilities. The factors were conducted surveys using SPSS WIN 18.0 program. Firstly, were mostly 40s, college graduates, Buddhists or had no religion, had housekeeping as occupation, had average household income, and most of them were healthy. In addition, descriptive statistics on their years of experience in golf, golf strokes, field, practice frequency, and practice hours were all above average. Secondly, significant correlations were suggested between experience in golf, golf strokes, field, practice frequency, silence during practice hours, and in the subjective happiness of negative correlation as a result of analysing the correlations between the factors. Thirdly, the field, practice frequency, and practice hours affected the subjective happiness.

• The Journal of the Convergence on Culture Technology
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• v.8 no.4
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• pp.75-82
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• 2022

This study aimed to firstly, understand how adolescents' mental, physical, sentimental, and health status and daily life have changed due to drastic environmental changes resulted from spending more time at home and taking online classes as a part of social distancing in the COVID-19 pandemic and secondly, identify how such changes influenced their subjective happiness. In conclusion, this study provided theoretical and practical discussion and implications for adolescents' happiness in disaster situation based on adolescent happiness influence factors.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.5
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• pp.489-498
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• 2018

The purpose of this study is to examine whether there is a difference in the awareness of death based on happiness (since attitude or way of life differs among the general public, depending on the perception of death), and to investigate whether there is a difference in the interest in hospices between a group with a high happiness index and a group with a low happiness index. A survey was conducted on 200 men and women aged over 20 who participated in a walking event held in a metropolitan city on April 22, 2017. The survey consisted of eight demographic items: gender, age, education, occupation, marital status, family cohabitation, religion, and health status. It included 29 questions regarding happiness and nine questions regarding the perception of death. For the statistical tests, a chi-square test, an independent sample t-test, correlation analysis, and canonical correlation analysis were performed on the items of the survey based on a happiness index. The results of the study showed that, for a suitable place for death, medical institutions was the highest score (46.3%) for the group with a low happiness index, and own house was highest (59.4%) for the group with a high happiness index. This was a significant difference. It is thought that management systems should be supplemented by professional manpower, educating people so as to increase the utilization rates of home-based hospice as a way for patients to die in a comfortable and familiar place because, for Korea, death is much more common in hospitals. It is also necessary to increase the awareness of death and to make effective use of hospices through individual and various other approaches, considering the demographics of the subjects.

• Proceedings of the KOR-BRONCHOESO Conference
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• 1979.05a
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• pp.3.2-3
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• 1979

Bone conduction loss is one of the most common complication in chronic otitis media, and is mostly high frequency loss. Of 233 tympanomastoidectomy ears, 187 ears were considered eligible for this study. A histopathological change was examined in the natural otitis media of guinea pigs. It is our intention to analyze the pattern of bone conduction loss in chronic otitis media, and to correlate this findings with clinical and pathological changes in human and animal otitis media. l) In unilateral cases, a significant difference in bone conduction threshold was observed between normal and diseased ears, and between each frequency with significant interaction between 2KHz and 4KHz (p 0.01). 2) Using one way analysis of variance, mean bone conduction was compared with the duration of disease. We observed a significant difference (p 0.05) between each group of duration, except between 11-15 and 15-20 years group. 3) A comparison of bone conduction between stapes loss group and intact stapes group revealed significant t ratio (p 0.01) at each frequency. The effect of stapes loss on each frequency was evaluated, using one way analysis of variance. there were significant difference(p 0.05) between 250Hz and 500Hz. and between 2KHz and 4KHz. 4) A comparison of bone conduction between round window obliteration and nonobliteration group revealed significant t ratio (p 0.01) at each frequency. Using one way analysis of variance. the effect of round window obliteration was evaluated in each frequency. We observed significant difference (p 0.05) between 250Hz and 500Hz. and between 2KHz and 4KHz. 5) A comparison of bone conduction between cholesteatoma and non -cholesteatoma group revealed significant t ratio (p 0.01) only in 2KHz and 4KHz. No significant differency was observed in mean bone conduction. 6) In a histopathological study of natural otitis media in guinea pig, we observed inflammatory infiltration of the round window membrane, serofibrinous precipitate in the scala tympani, and degeneration of the organ of Corti most significant near the basal turn. These changes would explain high tone bone conduction loss in the process of chronic otitis media.