• Applied Biological Chemistry
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• v.21 no.1
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• pp.22-30
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• 1978

The Fe complex formation of cyanidin-3-glucoside in acetate buffer solution $(pH1.7{\sim}6.0)$ was investigated spectrophotometically. Two different complexes were formed from cyanidin-3-glucoside and $Fe^{3+}$, which had the absorption maximum at 543nm in the pH range $3.0{\sim}4.0$ and at 570nm in the pH range $5.0{\sim}6.0$ respectively. The molar ratio of the complex formed in the lower pH range was appeared to be 1 : 1, whereas that of the complex formed in the upper pH range was not able to be determined definitely. Among several organic acids examined, citric acid has shown the marked inhibitory effect on the Fe-anthocyanin complex formation.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.25 no.4
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• pp.33-47
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• 2022

Wild boars(Sus scrofa) are expanding their range of behavior as their habitats change. Appearing in urban centers and private houses, it caused various social problems, including damage to crops. In order to prevent damage and effectively manage wild boars, there is a need for ecological research considering the characteristics and movement characteristics of wild boars. The purpose of this study is to analyze home range and identify land cover types in key areas through tracking wild boars, and to predict the movement connectivity of wild boars in consideration of previous studies and their preferred land use characteristics. In this study, from January to June 2021, four wild boars were captured and tracked in Jinju city, Gyeongsangnam-do, and the preferred land cover type of wild boars was identified based on the MCP 100%, KDE 95%, and KDE 50% results. As a result of the analysis of the home range for each individual, it was found that 100% of MCP was about 0.68km², 2.77km², 2.42km², and 0.16km², and the three individuals overlapped the home range, refraining from habitat movement and staying in the preferred area. The core areas were analyzed as about 0.55km², 2.05km², 0.82km², and 0.14km² with KDE 95%., and about 0.011km², 0.033km², 0.004km², and 0.003km² with KDE 50%. When the preferred land cover type of wild boar was confirmed based on the results of analysis of the total home range area and core area that combined all individuals, forests were 55.49% (MCP 100%), 54.00% (KDE 95%), 77.69% (KDE 50%), respectively, with the highest ratio, and the urbanization area, grassland, and agricultural area were relatively high. A connectivity scenario was constructed in which the ratio of the land cover type preferred by the analyzed wild boar was reflected as a weight for the resistance value of the connectivity analysis, and this was compared with the connectivity evaluation results analyzed based on previous studies and wild boar characteristics. When the current density values for the wild boar movement data were compared, the average value of the existing scenario was 2.76, the minimum 1.12, and the maximum 4.36, and the weighted scenario had an average value of 2.84, the minimum 0.96, and the maximum 4.65. It was confirmed that, on average, the probability of movement predictability was about 2.90% better even though the weighted scenario had movement restrictions due to large resistance values. It is expected that the identification of the movement route through the movement connectivity analysis of wild boars can be suggested as an alternative to prevent damage by predicting the point of appearance. In the future, when analyzing the connectivity of species including wild boar, it is judged that it will be effective to use movement data on actual species.

• Journal of the Korean Geographical Society
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• v.28 no.3
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• pp.227-246
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• 1993

Gender differences in the seperation of emplo-yment from home and commuting patterns of the Seoul Area are examined in this paper. Throughout the analysis, it is found that there exist a substantial gender variation in comm-uting rates. Even though the regional variation of commuting rates of male workers is very small, the female workers' regional variation of commuting rates is substantial. Especially, the area around the traditional central place of Kangbuk, the area near the Youngdungpo and Kuro where manufacturing and retailing activities are concentrated, and the area where low-income families are concentrated show high rate of female commuting. In contrast, the traditional residential area, especially the high-income area of Kangnam, shows lower rate of female commuting. Generally, female workers tend to work closer to home than male workers. Accordingly, the job search range of female workers is smaller than that of mle workers. But the areal unit of job search range of female workers is wider at least than Dong. The fact that female workers' job search area is smaller than male workers' implies that the job opportunity around the home location could have more impacts on female workers' job search process than male workers' job search process. There is a substantial difference in commuting behavior between male and female workers. In general, male workers commute longer, use more expensive transportation mode, and pay higher transportation cost in comparision with female workers. These gender differences in commuting behavior could be resulted not only form the gender difference in the seperation of employment form work, but also form the gender difference in the social status in both work place and home.

• Proceedings of the Korean Society of Environment and Ecology Conference
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• 2007.10a
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• pp.104-107
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• 2007

• Proceedings of the Korean Society of Environment and Ecology Conference
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• 2009.10a
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• pp.185-188
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• 2009

• Proceedings of the Korean Society of Environment and Ecology Conference
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• 2009.10a
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• pp.192-194
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• 2009

• Proceedings of the Korean Society of Environment and Ecology Conference
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• 2008.04a
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• pp.49-51
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• 2008

• Proceedings of the Korean Society of Environment and Ecology Conference
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• 2008.04a
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• pp.52-54
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• 2008

• Journal of Korean Home Economics Education Association
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• v.23 no.2
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• pp.131-148
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• 2011

The purpose of this study was to analyze the contents of housing area in Technology Home Economics textbooks of the 2007 revised curriculum which was published in 2011. The structure and the contents of housing area which are consisted of housing/living environment and use of housing space were analyzed. This study aims to examine the changes in the newly revised textbooks as well as suggesting advice for the more improved revised one in the future. For this purpose, this study employed 11 different textbooks and the results were the followings: each textbook had different quantity of pages dedicated to housing area but commonly had the wide range of terminology, plentiful amount of tables/diagrams, reading and activity materials sufficient to have students to carry out in practice. Also, the newly added contents of local area and eco-friendly life are analyzed to be well reflecting the 2007 revised curriculum. In future textbook development, it will be important that the issue of low birth rate, population ageing and green-life to be included as well as emphasizing the content of the network within the local area in order to actively prepare for the environmental issues.

• Journal of Korean Home Economics Education Association
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• v.7 no.1
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• pp.47-55
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• 1995

The purpose of this study were to identify the importance of father’s roles on children. A survey was carried out on 458(227 boys and 231 girls) 6th-graders at randomly chosen 4 elementary schools in Kwangju. Frequency, percentage, average, standard deviation and Pearson’s coefficient were checked and one-way ANOVA, Duncan’s multiple range test and multiple regression analysis were also carried out on the collected data. The results were as follows; 1. Evaluation of fathers’role performance depending on background variables ranged from 46.17 to 58.51 points(equivalent to 61.56∼78.01 points in the 100-point scale). Background variables that caused statistically significant difference were children’s sex, fathers’religion (whether they had one or not) fathers’education, monthly family income and decision-makers at home. The degrees of fathers’role performance were higher when the answerers were girls, when fathers had religions, when fathers educational level was higher, when the family income was higher, and when all family members participated in the decision-making. 2. Evaluation of children’s achievement motivation depending on background variables ranged from 77.17 to 84.34 points( equivalent to 68.90∼75.35 points in the 100-point scale). Background variables that caused statistically significant differences were children∼s sex and decision-makers at home. Children∼s achievement motivation were higher in the case of girls and when all family members participated in the decision-making. 3. When it comes to the children’s achievement motivation in relation to father’s role performance, 1)The overall aspect of fathers’ role performance caused significant differences in children’s achievement motivation. 2) The influence of fathers’role performance on children’s achievement motivation was highest in the investigation-faciliator role (${\beta}$=2.5) and then the economic role (${\beta}$=.14) and the valuetransmitter role (${\beta}$=.14). The explanative power of these variables was 22%.