• Journal of dental hygiene science
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• v.13 no.2
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• pp.125-134
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• 2013

The purpose of this study was to compare between early childhood teachers and mothers in oral health knowledge, oral health care behavior, and perception of oral health education. The subjects in this study were 90 early childhood teachers who worked in all of kindergartens and child-care centers and 235 mothers who have young children (aged from 1 to 5) in 2 kindergartens and 2 childcare centers Y region. They completed questionnaires about oral health knowledges, oral health care behaviors, and perception of oral health education. The collected data was analyzed by descriptive statistics, $x^2$-test, and Fisher's exact test of SPSS WIN. The results were as follows: 1. There was not statistically significant difference between early childhood teacher's knowledge about oral health and mothers'. 2. There was statistically significant difference between early childhood teachers' oral health care behaviors for children and mothers' in prevention of cavity, keeping toothbrushes, guiding oral health behaviors, and check up at dentist's. 3. There was statistically significant difference between early childhood teachers' perception of interest and experience in oral health education and mothers'. Therefore, There was not difference between early childhood teacher's knowledge about oral health and mothers. But early childhood teachers more frequently carry out preventing of cavity, keeping toothbrushes, guiding oral health behavior to their children than mothers. Mothers were more interested in oral health than early childhood teachers. And Mothers wanted to be educated about children' oral care and early childhood teachers wanted to be educated about guidebook and media of oral health education.

• Journal of Nutrition and Health
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• v.48 no.6
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• pp.519-529
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• 2015

Purpose: The purpose of this study was to examine the prevalence of food insecurity in Korean elderly and to analyze the health status as well as food and nutrient intakes according to food insecurity status. Methods: A total of 939 elderly subjects (over 65 years old) were used in our analysis from the fifth 2010 Korean National Health and Nutrition Examination Survey (KNHANES V-1). The variables consisted of general characteristics, physical and mental health, nutrient intake, rate of deficient intake of energy and nutrients compared with Dietary Reference Intakes for Koreans (KDRIs) and food quality and diversity according to the status of food insecurity. Food insecurity status was measured using a self-reported food security questionnaire on the dietary situation in the previous year, and participants were classified according to three groups: food secure group, mildly food insecure group, and moderately/severely food insecure group. Results: The proportion of the food insecure group was approximately 67% and the food insecure group had lower income and educational status than the food secure group. Food insecurity was associated with worse physical and mental health status after adjusting potentially confounding variables. The results showed that food insecurity in Korean elderly significantly affected mental health (including stress cognition, depression experience, and suicide thoughts) which exceeded stages of physical health. In addition, food insecurity showed significant association with low nutrient intake and high rate of deficient intakes of energy and nutrients compared with KDRIs, and a reduction of dietary quality and diversity was indicated in the food insecure group. Conclusion: This study concludes that the prevalence of food insecurity may affect the physical and mental health as well as dietary intake of the elderly Korean population. Therefore, food insecurity should be considered as an important public health issue in Korea.

• Korea journal of population studies
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• v.29 no.2
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• pp.167-194
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• 2006

The purpose of this research is to examine the impact of marriage and parenthood on the physical and mental health, in consideration of gender differences. We have retested various theories including Gove's inequality theory to explain how marriage and parenthood affect the contemporary Korean men and women. This study tries to answer these questions by analyzing the data from ${\ulcorner}$Successful Midlife Development: Survey on Mental health and Work/Family Life Course in Korea and the United States (Han et at., 2001)${\lrcorner}. The data were collected from the survey of 1696 adults (women: 49.5% (n=839)) at the age of 27 to 60. In this survey, physical and mental health were evaluated in three dimensions, respectively: depression, perceived physical health and illness symptoms. The results were that occupying both marital and parental status showed better health profile than possessing other role combinations(single parent/married but no child/never-married). Gender differences and other findings have been discussed further.

• Korean Journal of Culture and Social Issue
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• v.19 no.3
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• pp.507-528
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• 2013

The study examined the mental representation of children in foster care through the MacArthur Story Stem Battery (MSSB) and reviewed difference between children in foster care and typical children in terms of mental representation. Subjects of the study included a total of 50 children: 25 children (11 boys and 14 girls), aged from 5 to 8, in foster care in Gyeonggi Province, and 25 typical children (11 boys and 14 girls), aged from 5 to 8, who lived in Seoul and Gyeonggi Province. The research findings are summarized as follows: First, in terms of mental representation, children in foster care showed less subjects of empathic relations and more subjects of disorganized aggression than typical children. Second, children in foster care showed lower coherence mental representation than typical children. Finally, children in foster care were more likely to fail in emotional regulation than typical children in mental representation.

• Korean Journal of Childcare and Education
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• v.3 no.1
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• pp.71-87
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• 2007

This study aims to understand the relationship between mothers' expectation on school adjustment of their preschool children and mothers' perception of their parenting efficacy and their children's competence. Subjects were 340 mothers of 4-5 year old children attending child care centers and kindergartens located in Seoul and Kyunggy area. Test on elementary school children's school adjustment by Lim(1993). Parenting sense of competence adapted by Shin(1997), and Self-Perception profile for children' competence adapted by Jeon(1992) and Suh(1999) were adapted and used to measure mothers' expectation of their children's school adjustment, mothers' perception on their parenting efficacy and children's competence each. The data were analyzed by t-test, Correlation, simple and multiple regression analysis. The results of this study are as follows. Mothers who have jobs and have graduated university or more showed higher expectation on school adjustment of their children. Mothers also expect higher school adjustment of their daughters and of not the first child in their family. The more mothers percept their parenting efficacy, the higher they expect their children's school adjustment. Mothers's perception on their children's competence also showed same relationship with expectation of their children's school adjustment, that is, the more mothers percept their children's competence, the higher they expect their children's school adjustment.

• Restorative Dentistry and Endodontics
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• v.31 no.4
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• pp.269-281
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• 2006

This study evaluated the effectiveness and safety of an experimental bleaching strip (Medison dental whitening strip. Samsung medical Co., Anyang, Korea) containing 2.9% hydrogen peroxide. Twenty-three volunteers used the bleaching strips for one and a half hour daily for 2 weeks. As control group. the same strips in which hydrogen peroxide was not included were used by 24 volunteers with the same protocol. The shade change (${\Delta}E^{*}$, color difference) of twelve anterior teeth was measured using Shade Vision (X-Rite Inc., S.W. Grandville, MI, USA). Chroma Meter (Minolta Co., Ltd. Osaka. Japan) and Vitapan classical shade guide (Vita Zahnfabrik, Germany). The shade change of overall teeth in the experimental group was significantly greater than that in the control group (p < 0.05) and was easily perceivable. The change resulted from the increase of lightness (CIE $L^{*}$ value) and the decrease of redness (CIE $a^{*}$ value) and yellowness (CIE $b^{*}$ value). The shade change of individual tooth was greatest in canine. and smallest in central incisor. The safety of the bleaching strip was also confirmed.

• Convergence Security Journal
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• v.23 no.2
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• pp.27-36
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• 2023

In recent years, ransomware attacks have become more organized and specialized, with the sophistication of attacks targeting specific individuals or organizations using tactics such as social engineering, spear phishing, and even machine learning, some operating as business models. In order to effectively respond to this, various researches and solutions are being developed and operated to detect and prevent attacks before they cause serious damage. In particular, honeypots can be used to minimize the risk of attack on IT systems and networks, as well as act as an early warning and advanced security monitoring tool, but in cases where ransomware does not have priority access to the decoy file, or bypasses it completely. has a disadvantage that effective ransomware response is limited. In this paper, this honeypot is optimized for the user environment to create a reliable real-time dynamic honeypot file, minimizing the possibility of an attacker bypassing the honeypot, and increasing the detection rate by preventing the attacker from recognizing that it is a honeypot file. To this end, four models, including a basic data collection model for dynamic honeypot generation, were designed (basic data collection model / user-defined model / sample statistical model / experience accumulation model), and their validity was verified.

• Journal of the East Asian Society of Dietary Life
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• v.25 no.2
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• pp.352-362
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• 2015

The purpose of this study was to examine portion sizes and nutritional quality of foods served to children at Community Child Centers (CCCs), July 2014, in Korea. A survey was administered to foodservice employees working at CCCs. Thirty-nine participants completed the self-administered questionnaire regarding CCCs foodservice practices. In the weight test, fifteen volunteers of demonstrated typical portion sizes for $5^{th}$ grade elementary school students. Nutrition knowledge scores were significantly different between foodservice employees with experience taking a foodservice class for one year (6.04 out of 10.0 points) and those without experience (4.58 points). Foodservice employees with experience taking a foodservice class scored significantly higher in performing meal serving practices, e.g., wearing a sanitary cap and apron when serving food, than those without experience. The amount of foods served for children did not meet standard serving sizes; portion sizes of rice, soup, main dish, side dish and kimchi served by foodservice employees were 87.3%, 63.2%, 56.5%, 37.1% and 81.3% of standard serving sizes, respectively. When energy and nutrient intakes from portion sizes were calculated, energy, vitamin A, thiamin, riboflavin and calcium intakes did not meet standards for nutrition control of school meals. However, protein, vitamin C and iron intakes met more than 100.0% of standards. These findings suggest that foodservice employees with experience taking a foodservice class apply their knowledge to foodservice practices. Although portion sizes can influence energy and nutrient intakes in children, the actual portion sizes served by CCCs foodservice employees were inadequate and did not meet standards for serving size and nutrition. Thus, all CCCs foodservice employees need to receive foodservice education and be provided guidelines regarding portion sizes for children.

• Journal of Food Hygiene and Safety
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• v.20 no.1
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• pp.22-35
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• 2005

A survey was conducted to investigate the perception of food sanitation officers toward the Genetically Modified Foods. They were mainly from Regional Agencies of KFDA, City/Province office, and National quarantine station. Some of them were professors of university and researchers of research institute. Most of respondents had experiences of hearing or reading GM foods (over $95\%$) and over $90\%$ of respondents much needed the label of GM foods. Although some of officers of city/province office and national quarantine station showed less knowledge than other respondent groups, most of respondents had basic knowledge about biology. The frequency of respondents worked over 20 years and worked in the general administration was higher than that of other groups in the question of unsafe of GM foods. The answer frequency of careless treatment of foods was highest in the question of risk factor, and the frequency of GM foods was lowest ($4.4\%$). It was concluded that food sanitation officers had positive opinion about GM foods, but there were some differences in the knowledge among agencies. Therefore, it is necessary more educations and informations are needed for food sanitation officers.

• Journal of the East Asian Society of Dietary Life
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• v.24 no.3
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• pp.407-420
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• 2014

A survey was carried out regarding university students' recognition of high-caffeine energy drinks in an effort to identify and improve problems as well as provide basic data. Most of the subjects had previous experience of energy drink consumption. Studies showed that most students consumed energy drinks when studying. Regarding frequency of energy drink consumption, most students' responded "1~6 times a year"; female students showed lower frequency of energy drink consumption than male students. Both male and female students used convenience stores to purchase energy drinks. In most cases, students became aware of energy drinks through advertisements on TV, radio, newspapers, and magazines. The most important factor affecting their energy drink purchase and consumption status was taste. The most frequent adverse effect they experienced after drinking an energy drink was unusual heart-pounding, whereas the biggest problem caused by energy drink consumption was addiction. This study indicates that students should have a better understanding of the problems associated with excessive and prolonged high-caffeine intake. In addition, instructions for proper purchasing and consumption of high-caffeine energy drinks should be provided as well as education and campaigns concerning symptoms caused by high-caffeine energy drink consumption so that students may refrain from excessive consumption. Further, civil organizations and the government need to devise effective measures for proper regulation of high-caffeine energy drink consumption.