• Proceedings of the Korea Association of Information Systems Conference
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• 2004.05a
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• pp.316-335
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• 2004

This paper builds a system dynamics model analyzing first mover effect and growth strategy of online retailer, a major segment of B2C e-commerce. The dynamic model in this paper is calibrated to the online book market and Yes24.com as major test cases. The model consists of eight key value chain sectors. Five of these(Users, Site Operations, Human Resources, Financial Accounting, and Fundraising) are internal to the company, and three others(Market, Financial Market, and Relative Performance) are external to the company. With the model, this paper suggests research propositions representing positive feedback loops and negative feedback loops that lead to corporate growth and limits to growth according to dynamic causal relationships among eight key value chain sectors, and simulate these propositions.

• International Journal of Human Ecology
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• v.2 no.1
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• pp.111-121
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• 2001

The purpose of this study was to examine how immigrant Korean American parents' aspirations for children's educational attainment are related to their childrearing behavior, their beliefs about the nature of children's intelligence, their level of acculturation, and their beliefs about achievement. One hundred and twenty five immigrant Korean mothers in the United States participated in the study. The present study found that parental expectation for a daughter's educational attainment was significantly related to the mother's educational level. The results of regression analysis also indicated that for daughters, the significant predictors for parents' aspirations for children's educational attainment were the mothers' educational level and parental beliefs about achievement; for sons, significant predictors were the mothers' educational level and parental nurturance.

• Journal of Integrative Natural Science
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• v.5 no.2
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• pp.65-71
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• 2012

Neuropeptide Y (NPY), a 36-amino acid polypeptide, is a member of the pancreatic polypeptide family, which consists of NPY, peptide YY (PYY) and pancreatic polypeptide (PP). The neuropeptide Y (NPY) receptors called Y receptors belongs to G-protein coupled that are involved in a variety of physiological functions such as appetite regulation, circadian rhythm and anxiety. Five receptor subtypes have been cloned in mammals (Y1, Y2, Y4, Y5, and Y6) of which four are functional. In this short review, information about the functional NYP receptors was analyzed. Sequence analyses were done between these receptors to identify the relationships between them. Phylogram was generated between these receptors to identify the close homologue between these receptors. Our sequence analyses found that Y1 and Y4 receptors are close than the other receptors. Further structure based analysis could be useful to identify subtype selective antagonists and dual antagonists targeting Y1 and Y4 receptors.

• Safety and Health at Work
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• v.8 no.1
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• pp.72-76
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• 2017

Background: Workplace victimization is considered a major social stressor with significant implications for the wellbeing of employees and organizations. The aim of this study was to examine the influences of employees' personality traits and organizational politics on workplace victimization among Ghanaian employees. Methods: Using a cross-sectional design, data were collected from 631 employees selected from diverse occupations through convenience sampling. Data collection tools were standardized questionnaires that measured experiences of negative acts at work (victimization), the Big Five personality traits, and organizational politics. Results: The results from hierarchical multiple regression analysis showed that among the personality traits neuroticism and conscientiousness had significant, albeit weak relationships with victimization. Organizational politics had a significant positive relationship with workplace victimization beyond employees' personality. Conclusion: The study demonstrates that compared with personal characteristics such as personality traits, work environment factors such as organizational politics have a stronger influence on the occurrence of workplace victimization.

• Human Ecology Research
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• v.55 no.1
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• pp.57-66
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• 2017

This study investigates the effect of a leadership program to enhance leadership skills in children from low-income families. A total of 45 elementary school students participated in the 52-week leadership program. Five leadership scales, such as goal attainment, paradigm shifting skills, skills to lead others, human relationship skills, and sense of purpose, were measured through survey questionnaires before and after implementing the program. In addition, individual teacher interviews examined the influence of the program on students' leadership skills. This study found that participants showed significant improvement after implementing the program in the three domains of the leadership skills (goal attainment, paradigm shifting skills, and human relationship skills); however, the skills to lead others and sense of purpose did not significantly change. The leadership teachers also stated that the program influenced positively on students' leadership skills; in addition, students' behavioral changes were found by developing relationships with other children as well as contemplating and attempting to find a future dream and vision. The leadership program was effective to enhance leadership skills in children from low-income families. This study can provide the theoretical and practical foundations for the development and implementation of effective leadership programs that meet the needs of children from low-income families.

• Korean Journal of Human Ecology
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• v.14 no.4
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• pp.521-529
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• 2005

The present study was to find out the differences of fathers' involvement in parenting, role satisfaction, and young children's social competence according to fathers' socio-demographic variables, and the relationships among fathers' involvement in parenting, role satisfaction and young children's social competence. The subjects of the study were 175 five-year-old children and their fathers from public kindergartens in Chongju, Jecheon, and Danyang. Questionnaires used in the study were the measures of father's involvement in parenting(Lee, 1999), role satisfaction(Cho, 1998), and young children's social competence(Han, 1997). Data were analyzed with frequency and percentage, mean and standard deviation, t-test, F-test, LSD post hoc test, and Pearson's correlation coefficient using SPSS program. Results of the study were as follows: First, there were differences in father's involvement in parenting, role satisfaction, and young children's social competence according to father's level of education, job, and income. Second, there were significant positive correlations among father's involvement in parenting, role satisfaction, and young children's social competence.

• Korean Journal of Human Ecology
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• v.16 no.2
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• pp.421-432
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• 2007

The purpose of this study was to investigate the relationships between appearance-related attitude(attitude toward appearance, body satisfaction) and clothing attitude, and to examine how clothing attitude was influenced by appearance-related attitude. The method of this study was survey research by using questionnaires. Subjects were 700(middle school students 217, high school students 227, university students 256) girl students located in Junrabookdo province. In this statistical analysis, SPSS 11.5 for Windows program was utilized to calculate frequency, mean, factor analysis, cronbach's $\alpha$, one-way ANOVA, Pearson's correlation, multiple regression analysis. The results of this research were as follows: The results of analysing the factors to the response clothing attitude emerged five dimensions(fashion pursuit, gender attractiveness, self-expression, aesthetic, and modesty). University school girls' students showed higher attitude toward appearance, body satisfaction, clothing attitude except of modesty. Clothing attitude variables except of modesty had positive correlations with appearance-related attitude. However, modesty of clothing had negative correlations with appearance-related attitude. As a conclusion, adolescents' appearance-related attitude constituted important characteristics which could affect clothing attitude directly.

• Korean Journal of Human Ecology
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• v.9 no.2
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• pp.33-42
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• 2006

The purpose of this study was to identify the relationship between lifestyles and clothing shopping orientation. A questionnaire was developed to measure the lifestyle and shopping orientation of Chinese female college students. The questionnaire was distributed and collected from 217 college female students in China. The data was analyzed by mean, standard deviation, factor analysis, reliability test, MANOVA and ANOVA by SPSS package. The lifestyles of the respondents were classified into four types such as Open-mindedness, Accomplishment, Sociability, and Activities. And shopping orientation was classified into five types such as Recreational shopping, Speediness, Economic shopping, Shop and brand royalty, and Self-confidence. The result of this study were as follows; Consumers of open-minded lifestyle tended to economic and self-confident shopping. The higher accomplishment was, the higher speediness and economic shopping were. Consumers of sociable lifestyle tended to recreational, speediness, and self-confidence. The higher activities was, the higher economic shopping was. The shop and brand royalty was not shown to have the significant differences according to all of lifestyle groups. It is the factor that lifestyle were important in the clothing market segmentation of Chinese female college students

• Korean Journal of Human Ecology
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• v.16 no.5
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• pp.899-908
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• 2007

Clusters of parental and peer variables associated with adolescent risk behaviors are explored using the mixture model. Questionnaires were completed by 917 high school freshmen in the Daegu Kyungpook area and included measures of risk behaviors, parental attachment, autonomy, parental monitoring, and peers' risk behaviors and desirable behaviors. As a result of the mixture model, five clusters were produced. Two of the subgroups were consistent with the literature of showing linear relationships among adolescent risk behaviors and above variables; a group of higher parental attachment and autonomy as well as parental monitoring, lower friends' risk behaviors, and lower adolescent risk behaviors, and a group of lower parental attachment and autonomy as well as parental monitoring, higher friends' risk behaviors, and higher adolescent risk behaviors. Two other subgroups were similar in parental attachment and autonomy, but differed in parental monitoring, friends' risk behaviors, and adolescent risk behaviors. The last subgroup was characterized by scoring the lowest parental attachment and autonomy, parental monitoring, friends' risk behaviors, and lower adolescent risk behaviors compared to other subgroups. The utility of the mixture model in research on adolescent risk behaviors is discussed in the conclusion.

• Korean Institute of Interior Design Journal
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• v.15 no.4 s.57
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• pp.29-36
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• 2006

Fashion and interior architecture are two areas of design that may share common issues, trends and philosophies, making fashion design human's second skin and interior architecture the third. The concept of 'skin' has become one of the most interesting phenomena in design during the past decade and not surprisingly similar issues can be seen also in fashion and architectural design. The current trend in fashion design is that the skin (clothing) has become detached from the human body and extended into the environment, resulting fashion as art objects. Skin in architecture and interior design has also become detached from the structure so designers have more freedom to experiment by using advanced technologies. The present study attempts to analyze common features of 'skin phenomenon' in fashion and interior architecture that are; detachment, emphasis on space, extension, territorial blending, and digital applications. The researcher has used constant comparative method to categorize the five features among many examples. The limitation of this study is that it is focused on the formative phenomena of projects excluding the philosophies and personal background of each designer. However, it is hoped that the study may assist designers and other researchers to understand relationships between fashion and interior design, hold broader spectrum in art and design.