• Journal of the Korea Convergence Society
• /
• v.12 no.8
• /
• pp.85-92
• /
• 2021

This study was conducted to identify the impact of adolescents' dietary behavior on their stress perception and provide basic data for education programs linked to customized nutrition education by gender. In this study, the 2019 Korea Youth Risk Behavior Web-based Survey was used, and a total of 57,303 middle·high school students were selected. Controlling adolescents' age, school record, economic status, residence type, subjective health and body type perception, and the dietary life variables designed with breakfast, fresh foods(fruit, vegetables, milk, water), processed foods(carbonate beverage, energy beverage, sweet beverage, fast food) were analyzed to have an effects on the stress recognition of adolescents. Breakfast had a negative(-) effect on stress perception in all genders of adolescents, and in the case of fresh food, water for boys and fruit for girls had the highest negative(-) effect on stress perception, and in the case of processed foods, energy drink was the dietary factor that had the highest positive(+) effect on adolescents' stress perception. These results suggest that it is necessary to develop a dietary education program tailored to the gender of adolescents to improve their stress perception, and to provide continuous guidance to form a healthy diet.

• The Journal of the Korea Contents Association
• /
• v.21 no.5
• /
• pp.627-637
• /
• 2021

Many efforts have been made to prevent alcohol related harms such as health problems and socio-economic problems. Among them, the method of improving drinking behavior at the individual level is the most direct intervention. The effectiveness of the use of protective behavior strategies(PBS) has been widely known in Western countries. The purpose of this study is to empirically verify whether the use of PBS affects alcohol related harms in Korean adults. The survey has been conducted on 2,000 adult men and women. As a result, it is found that the use of PBS reduced alcohol related harms in adults. Among the PBS, the biggest impact on alcohol related harms is the area related serious harm reduction strategy, followed by restrictions on 'manner of drinking'. The effects of 'limiting/ stopping of drinking' is not significant. In addition, drinking frequency, binge drinking, and drinking motivations have significant positive effects on alcohol-related harms, and only social motivation has a negative effect. In this work, we propose follow-up studies on identifying relationships between protective behaviors and alcohol related factors through longitudinal studies and strengthening the use of protective behavior strategies that applied to the refined target populations.

• The Journal of the Convergence on Culture Technology
• /
• v.7 no.3
• /
• pp.255-260
• /
• 2021

This study tried to investigate the effects of the adaptation of middle-aged and elderly adult learners to college life on happiness. For this purpose, a questionnaire survey and analysis were conducted on 321 middle-aged and older adults studying at two-year and four-year colleges in Daegu and Gyeongbuk Province, and the results are as follows. First, college life adaptation according to the general characteristics of middle-aged and elderly learners are higher for those in their 50s and 2nd grade in good health condition. Happiness was the highest women, 60s and those in the form of households where only couples live. Second, there is a static correlation between the adaptation of middle-aged and elderly adult learners to college life and happiness, and the correlation between satisfaction with internal growth and satisfaction with meaning was the highest. Third, it was found that middle-aged and elderly adults' adaptation to college life influenced happiness, and the adaptation to adult student relationships, which is the lower part of the adaptation to college life, had the greatest impact on happiness. The above research results suggest that the various positive experiences experienced in university life can affect happiness by easing student relationships, psychological stability, and physical tension, and improving one's own satisfaction with internal growth.

• Journal of Nutrition and Health
• /
• v.54 no.6
• /
• pp.664-678
• /
• 2021

Purpose: Food allergies in children are known to impact the quality of life for growing children as well as their parents. This study investigates the status of food allergy and its management among preschoolers, and evaluates the effect on parental burden. Methods: In May 2019, five kindergartens and daycare centers in Jeju area were randomly selected, and parents (n = 638) who had preschoolers younger than 6-year-old were surveyed using a questionnaire. A total of 387 participants were included in the final data analysis. Results: The percentage of children (aged 3 to 6 years old) who experienced food allergies was 16.8%; 44.6% had been diagnosed as having a food allergy by doctors. Food allergies were first experienced in more than two-thirds of the subjects when they were less than a year old. Egg and milk were the most frequent allergenic foods with some skin related symptoms. A mere 15.4% children suffering from food allergies were offered substitutes for their allergenic foods. Lastly, as compared to other parents, the parents of children who experienced food allergies had not only higher nutritional knowledge, but also heavier parental burden including emotional distress. Regardless of their nutritional knowledge, parents of children with food allergy expressed their willingness to attend nutrition education classes, if available in future. Conclusion: For prevention of food allergies and proper nourishment of children with food allergies, there is a necessity to provide customized-nutritional education for the affected parents to help alleviate their parental burden, especially for reducing emotional distress.

• Journal of the Korea Institute of Information Security & Cryptology
• /
• v.32 no.3
• /
• pp.465-475
• /
• 2022

Due to the impact of COVID-19, people are paying attention to convenience and health, and the use of IoT devices to help them is increasing. In order to embed a lightweight security element in IoT devices that need to handle sensitive information even with limited resources, the development of a lightweight S-box is essential. Until 2021, it was common to develop a lightweight 4-bit S-box by a heuristic method, and to develop an extended structure or repeat the same operation for a larger size lightweight S-box. However, in January 2022, a paper that proposed a heuristic algorithm to find an 8-bit S-box with better differential uniformity and linearity than the S-box generated with an MISTY extended structure, although non-bijective, was published [1]. The heuristic algorithm proposed in this paper generates an S-box by adding AND operations one by one. Whenever an AND operation is added, they use a method that pre-removes the S-box for which the calculated differential uniformity does not reach the desired criterion. In this paper, we improve the performance of this heuristic algorithm. By increasing the amount of pre-removal using not only differential uniformity but also other differential property, and adding a process of calculating linearity for pre-removing, it is possible to satisfy not only differential security but also linear security.

• The Journal of the Korea Contents Association
• /
• v.22 no.4
• /
• pp.433-444
• /
• 2022

This study aimed to identify the change trajectories and clusters of Korean women's family values and depression levels, and the factors affecting depression, to use balanced panel data from the 1st to 7th rounds of the Korea Longitudinal Survey of Women and Families(KLSWF). The subjects of this study were 5,048 female panelists who participated in the KLSWF, and LSTM analysis was conducted using Python to divide the clusters of Korean women suffering from depression. In addition, descriptive statistical analysis, ANOVA, multinomial logistic regression analysis, and hierarchical regression analysis were analyzed using SPSS 23.0. Results, It was confirmed that women's depression increased with age, and family values had a significant impact on depression. It was found that the more open the marriage values of women in the married group, the higher the level of depression. The family values trajectory and depression level of the analyzed subjects were not a single pattern, but included four clusters. To prevent depression among Korean women and provide more concrete interventions, a humanities and sociological system that can identify depression groups should be prepared.

• Journal of Nutrition and Health
• /
• v.55 no.3
• /
• pp.390-405
• /
• 2022

Purpose: This study was conducted to effectively apply the nutrition and hygiene education program for improving the nutritional status of the elderly aged 65 years and above. Methods: The first study was conducted by enrolling 121 willing elderly subjects from welfare centers in four regions of Chungbuk. The second study included 347 people from 10 regions of Chungbuk. Data were analyzed using the SPSS (version 12.0) and SAS (version 9.2) programs. Results: Most participants in both studies were women, ranging from 70-79 years of age. In the first study, the performance rates of subjects, after imparting the education on hygiene, eating habits, and nutritional knowledge, were significantly increased for all factors. Goesan and Boeun areas were highly effective in hygiene practice and eating habits after education. In the second study, Chungju had the most educational effect on hygiene education, with a score of 6.41 points before education and 7.68 points after education. The greatest impact of education on eating habits was obtained at Goesan, with 9.23 points and 11.26 points before and after education, respectively. Large regional differences were determined for the effect of the education program. For nutritional knowledge, the combined average score of Boeun and Goesan showed a maximum increase after education. When considering satisfaction, the scores of Cheongju and Jeungpyeong increased the most after education, whereas Goesan showed that the average scores before and after education were close to perfect. Surprisingly, the Okcheon area, where there was no significant difference in the educational effect after the education program in the first study, showed significant improvement for all factors after the second education program. The current study indicates that continuous education programs are essential for improving the nutritional status of the elderly. Conclusion: Therefore, continuous nutrition and hygiene education programs are recommended to improve the nutritional status of the elderly.

• Korean Journal of Culture and Social Issue
• /
• v.27 no.1
• /
• pp.35-49
• /
• 2021

The purpose of this study was examine the depression among Mongolians in South Korea. We also determined the effect of acculturative stress and social support on depression. In this study, total of 200 adults over age 18 completed the BDI-II of Mongolian Version, Acculturative stress scale for international student, The Multi-dimensional Scale of Perceived Social Support. Data were analyzed by using the factor analysis, correlation analysis, t-test, and hierarchical regression analysis. We used SPSS 22.0, AMOS 22.0. We found significant difference in mean scores between groups according to socio-demographic characteristics. The level of depression was high in over 3 years immigrants group (M = 8.41, SD = 9.6954), marriage immigrants group (M = 19.1, SD = 16.7649), and female groups (M = 7.61, SD = 9.2188) than compared to reference groups. Acculturative stress and social support of Mongolian immigrants had a significant impact on depression (β = .365, p <.001; β = .- 555, p <.001). There was a moderating effect of social support on the relationship between acculturative stress and depression (β = 1.080, p <.001). The limitations and implications of the study were discussed. We conclude that this study can be used to assess the depression and the mental health of Mongolians in South Korea.

• Journal of Navigation and Port Research
• /
• v.46 no.3
• /
• pp.251-258
• /
• 2022

Donghae Port is adjacently located to a residential area wherein 26,933 generations are creating a living environment. The areas comprise Song-jeong village (5,754 generations) and Bukp-yeong village (21,179 generations). Major cargoes handled in Donghae Port are dusty limestone, cement, anthracite, and bituminous coal, etc. In the process of handling such cargoes, air pollutants including oxide dust and fine dust which adversely impact the living conditions and health of residents are generated, causing air pollution in the vicinity of the port. Currently, Donghae Port is making an effort to improve the operation environment of the infrastructure and equipment in stages, for the purpose of reducing air pollutant emissions caused by the port industries in a long-term perspective. In this study, the sphere of influence of fine dust exposure and the degree of air pollution in the surrounding area were analyzed such as the state of fine dust concentration and diffusion in the vicinity of Donghae Port, fine dust diffusion pattern and spatial distribution of high-concentration considering wind direction and speed characteristics during the day and seasonal cycles. A more effective plan to reduce the concentration of fine dust in nearby areas by combining reduction plan, is being developed in terms of improvement regarding port infrastructure and equipment, and reduction measures considering the characteristics of the atmosphere environment according to the daytime, nighttime and season.

• 한국노년학
• /
• v.40 no.2
• /
• pp.239-255
• /
• 2020

The purpose of this study is to examine whether family relationships of elderly single-person households affect community participation and whether these relationships differ by gender. Based on Baltes and Baltes (1990) 's selection, optimization, and compensation theory (SOC) and the argument that family members are a social capital by Prandini (2014), we test whether family relationships can affect community participation in old age. In order to verify this, single-person households were extracted from the 2017 National Survey of Living Conditions and Welfare Needs conducted by the Korea Institute for Health and Social Affairs (Male sample=370, Female sample=1770), multiple regression analysis were conducted with the dependent variables of friends·neighbors and the participation at Kyungrodang·welfare centers for the elderly. The results are as follows. In the case of men, family relations showed no significant effect on their participation in friends·neighbors, or Kyungrodang·welfare centers. However, in the case of women, the frequency of contact with family had a positive effect on the frequency of meeting friends·neighbors. Family contact frequency and child relationship satisfaction had a positive (+) effect on Kyungrodang·welfare center participation, while family meeting frequency had a negative effect on participation in Kyungrodang·welfare centers. For women, although Prandini's (2014) claim that family members are a social capital seems to be supported, it was found that the impact could vary depending on the type of community participation. In addition, practical discussions and suggestions were presented.