• Journal for History of Mathematics
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• v.29 no.3
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• pp.173-190
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• 2016

Luca Pacioli was a Franciscan friar, a prolific writer, a devoted teacher, a mathematician and a close friend of Leonardo da Vinci. He is also known to be the"father of accounting". He is best remembered for his two books on mathematics: "Summa de Arithmetica Geometria Proportioni et Proportionalita" and "De divina proportione". These two books, which were printed in the field of mathematics for the first time by using Gutenberg's printing technology, contributed to the development of mathematics in Europe. In this paper, we investigate various aspects of his life and mathematical contribution of Pacioli based on these two books.

• Korean Journal of Child Studies
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• v.21 no.3
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• pp.85-105
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• 2000

The purpose of this study was to examine the influences of victimization by peers on self-esteem and the role of father/mother attachment and friendship with a range of 354 2nd-grade junior high school students(169 boys and 185 girls). The subjects reported victimization, father/mother attachment, friendship(number of friends and presence of a best friend), self-esteem and their peers rated victimization, too. The result indicated that (1) Victims in the end of the second semester were also those who were victimized by peers in the end of the first semester, (2) The victimization by peers effected on self-esteem in boys and girls, (3) The interaction effect of victimization and parent attachment on self-esteem was statistically significant only for boys, and friendship on self-esteem was statistically significant only for girls.

• International Journal of Advanced Culture Technology
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• v.10 no.3
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• pp.237-243
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• 2022

This study intends to examine gender differences in predictors of Human Papilloma Virus (HPV) vaccination intention based on the Theory of Planned Behavior (TPB). Specifically, this study investigated whether the variables constituting TPB might show differential effects on college men and women's HPV vaccination intention. The current study also examined which specific subjective norms are more influential in explaining HPV vaccination intention of men and women. The results of an online survey revealed that females showed significantly higher intention to get the HPV vaccine and perceived behavioral control than male students. Female students' vaccination intention was best predicted by perceived behavioral control whereas friend norm was the most influential predictor of male students' intention to get the HPV vaccine. The results of this study provide implications for persuasive strategies required to appeal to college men and women to increase HPV vaccination rate.

• Journal of Families and Better Life
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• v.33 no.4
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• pp.119-145
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• 2015

The purpose of this study was to identify the latent styles of attachment across four major attachment figures (i.e., father, mother, best friend, and romantic partner) for Korean emerging adults. In this study, adult attachment had two dimensions (i.e., attachment anxiety and avoidance) and was measured by the Experiences in Close Relationships-Relationship Structures (ECR-RS). Data came from 317 undergraduate students in nine universities across the nation. A latent profile analysis classified the sample into four groups. (a) The "somewhat father avoidant secure" group reported the lowest levels of attachment anxiety and avoidance across close relationships but was moderately avoidant in their relationship with the father. (b) The "overall avoidant" group had the highest levels of attachment avoidance across close relationships, but along with the "father avoidant secure" group, they had the lowest levels of attachment anxiety. (c) The "romantic anxious" group was unique with the highest level of attachment anxiety toward romantic partners while reporting relatively lower levels of attachment avoidance across relationships. (d) The "overall anxious-avoidant" group was the highest in attachment anxiety and avoidance across all of their close relationships except for attachment avoidance from best friends and romantic partners, which were the highest among the "overall avoidant" group. These four groups also differed in their levels of depressive symptoms and affection for the father and the mother. This study uniquely contributes to the literature by identifying the latent attachment styles considering four attachment figures and examining the characteristics of these attachment styles.

• Journal of the Korean Home Economics Association
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• v.23 no.3
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• pp.27-38
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• 1985

In KOREA, the history of weaving is so long even in prinitive, there are the traces of fabric emmision using Spindle already in the Neolithic age. And coming up to the period of Three States, becoming active of cultivation of fibers, it can be known the variety of kinds and the production of fine products by improvement of new method of weaving using weaving machine. In the period of shilla state, there is a record of making the fine fabrics with 28 bracts. But wearing of silks fabrics was limitted for only the nobility and common people were wearing native thick hemp clothes. Also in the period of Korea state, they were wearing the hemp clothes by cultivation of hemp. The good quality products were worn by the King or the nobility and women in KOREA made their best with whole efforts to pay to the authorities with woven products of hemp clothes, so in the 14th year of King Chung- Ryul, King prohibited the presentation of fine hemp clothes by his order. By the end of KOREA state, before the production, common people was mainly wearing the hemp clothes. Coming up to the Kingdom of Chosun the sericulture was promoted by establishment of the sericulture encouraging low. Therefore the working hours of women were highly increased. The products of Song-do, Chin-ju for cotton clothes, those of Han-san-the same now as in old times-for ramie clothes, those of Han-Kyung province and An-dong for hemp fabrics were estimated as the best qualities. And the hemp clothes of Kang-won province is not so fine but is very useful and famous for mourning clothes and summer clothes for the farmer. It is true that our history of weaving was begun with hemp as a continous and precious friend of common people during all the historical periods-even though for a while it went backward because of chinese silks.

• Journal of Families and Better Life
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• v.25 no.2 s.86
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• pp.59-69
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• 2007

The purpose of this analysis is to investigate the effect of leading characters in picture books on self concept in children. For this study, we selected a total of 55 picture books, all of which were best sellers in four internet book stores. The method used for the study was based on content analysis. The results of this analysis were as follows: First, the gender of leading characters was male more often than female, and the majority of picture books were creative story books and translation books. Second, subordinate parts related to the self-concept were most frequently found in the social self-concept. Social self-concept was positively expressed through the relationship between friend and family characters in story books. Cognitive self-concept was the least. Third, when the frequency of positive and negative expressions in picture books was analyzed, the social self-concept was found to be positively expressed in the subordinate parts of relationships between friends and family. The social self-concept was negatively expressed, however, in the subordinate parts of relationship between non-significant others, and the emotional self-concept was also negatively expressed in the subordinate parts of the emotional recognition and expression. In summary. instances of cognitive self-concept and positive expression were found to be more significant than negative ones.

• Proceedings of the Korea Contents Association Conference
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• 2006.11a
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• pp.355-359
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• 2006

Mobile network evolution and development of USN technologies introduce new business model based on context awareness. Cellular operators provide friend finding service using cell based location information and telematics service using GPS location information. Recently cellular operators provide yellow page service based cell based location information. In this paper, we develop mobile tour application on WIPI platform based on location information. Mobile tour information services provide the best information based on context awareness using user location information from LBSP (Location Based Service Platform), season, weather conditions, time from Web server, and personal preference information stored in database. Mobile tour information service application is developed on WIPI platform.

• Journal of Nutrition and Health
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• v.34 no.8
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• pp.946-955
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• 2001

This study was performed to investigate the dietary supplement use and related factors by college students attending in web class. One thousand four hundred college students(male: 632, female: 768) were participated in this study. The questionnaire about dietary supplements use, demographic characteristics, eating behavior, health-related lifestyles, nutrient intake was self-administered and the data were obtained via internet or mail. Dietary supplements were taken by 63.6%(male : 62.2%, female : 64.2%) of subjects. The higher concern about nutrition and health, the higher the incidence of dietary supplements taking was(p < 0.05). Dietary supplement users were satisfied more than non-users about meal served(p < 0.05). Supplements used by most male students were lactic acid beverage, Chinese medicine, geigogi geisoju and multivitamin, Chinese medicine, fiber-processed flood for female students. Most of dietary supplement users answered that the sources of information on supplements were 'friend, family or relatives' and 'TV or radio'. Dietary supplement users were taking significantly more nutrients compared to non-use. Therefore, it may be necessary to provide nutrition information and education which show that balanced diet is the best nutritional strategy for health promotion and diet supplements can be helpful in deficient state nutrients.

• Korean Journal of Health Education and Promotion
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• v.21 no.4
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• pp.1-13
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• 2004

This study conducted descriptive literature review on adolescent smoking and the related factors to realize significance of adolescent smoking onset in Korea and to identify risk factors of smoking incidence. Korean adolescent smoking status was generated based on the cumulated data of the Korean Association of Smoking and Health. Risk factors of adolescent smoking were identified based on 18 studies written in English, with cross-sectional research design and published as a peer-reviewed journal article between 1994 and 2003. The results were as follows. 1. Korean adolescent smoking rate was the highest among OECD affiliated countries; in particular, male adolescent smoking incidence was very serious. 2. Risk factors related to smoking of adolescent population were personal factor, friend factor, family factor, and mass-media factor. Demographic characteristics, attitudes on smoking, and willingness of smoking, and health behaviors were selected as personal factor of smoking. 3. Best friends smoking was a strong factor of students' smoking set. Prevalent popularity of smoking in peer-group allowed students to feel free to smoking. 4. Concerning family factor related to smoking status, parents' smoking and sibling's smoking were significant indicators of adolescent smoking status. 5. Seeing smoking behaviors and scenes through films, TV shows, drama, and advertisement was a significant risk factor of adolescent smoking status.

• Korean Journal of Child Studies
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• v.37 no.2
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• pp.57-77
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• 2016

Objective: This study examined the influences of general characteristics, temperament, social support, and emotional regulation on the positive psychological capital of adolescents. The data were collected from 672 middle school students living in Gwangju. Methods: Data were analyzed using Pearson correlation analyses and hierarchical regression analyses. Results: Temperament best explained positive psychological capital. In terms of individual factors, self-emotion regulation had the greatest effect on positive psychological capital, followed by friend support, persistence temperament, others emotion regulation, academic achievement, harm avoidance temperament, gender, and family support, in that order. Conclusion: The results for the effects of temperament, social support and emotion regulation on adolescent's positive psychological capital highlights the important roles played by the temperament, social support, and emotion regulation in improving an adolescent's positive psychological capital. The study contributes to the literature by proving fundamental insights into an adolescent's psychological strengths and higher quality of life.