• Journal of Environmental Health Sciences
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• v.40 no.1
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• pp.63-70
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• 2014

Objective: The purpose of this study was to investigate the occurrence of indicator organisms in essential sanitary ware in public restrooms. Methods: Twelve public restrooms were randomly selected. Samples at three locations (toilet seat, toilet flush handle/lever, and faucet handle) in the restrooms were collected with moistened-sterile cotton swabs and applied to media in order to determine aerobic colony count (ACC), total coliforms, and Escherichia coli. Results: Most of the samples taken in summer showed a higher level of ACC than those taken in winter (p<0.05). Female restrooms showed higher ACC levels on faucet handles and male restrooms on toilet flush handles/levers (p<0.05). Overall, faucet handles contained the greatest level of ACC, followed by toilet seats, whereas the least load was found on toilet flush handles/levers. The ACC level of samples in the restrooms in public parks, subway stations, and educational institutions varied. Total coliforms were identified in about 20% of toilet seats and faucet handles in male restrooms and faucet handles in female restrooms in summer. These locations were also the sites of positive results of E. coli isolation. Conclusions: The public restrooms were significantly more contaminated in summer than in winter. Overall, the most contaminated locations in the restrooms were toilet seats in male restrooms, and faucet handles in female restrooms. Poor hygienic status was indicated by the positive results of total coliforms and E. coli on samples from some sites. Therefore, sanitary control of restrooms should be improved. These results should be confirmed in a larger study that includes more public restrooms.

• Journal of Families and Better Life
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• v.26 no.4
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• pp.103-117
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• 2008

The purpose of this study was to investigate the relationships between female adolescents's relationships with their parents, psychological well-being, and attitudes towards eating. General characteristics of the subjects such as their school grades, and religion, and their parents' level of educational, marital status, and income were also analyzed in relation with the three major variables. Female adolescents' psychological well-being consisted of two indices: self-esteem and depression. The sample of this study consisted of 419 female students from 4 middle schools and 2 high schools located in Jeollabuk-Do province and the data were collected by using the method of self-administered questionnaires. The results of the analyses showed that there were significant differences in the level of parental attachment across parents' marital status, father's education level, and family income. Participants' psychological well-being levels were also different according to their grades, parents' marital status, and father's education level and income; and the level of eating attitude was different according to their school grades. The correlation analyses results indicated that parental attachment was positively related to self-esteem but negatively to a depressive mood. In addition, female students' eating attitudes were negatively associated with parental attachment and self-esteem, but positively with a depressive mood. Finally, multiple regression analysis found that a negative eating attitude was strongly influenced by a depressive mood, while parental attachment seemed to influence eating attitude indirectly through a depressive mood.

• Korean Journal of Community Nutrition
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• v.11 no.1
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• pp.83-97
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• 2006

This study was to investigate dietary habit for residents in the rural area of Chonnam, Muan. The subjects were composed of $61.2\%$ male and $38.3\%$ female (510 adults). In regularity of meal time, $56.3\%$ of the subjects had meals regularly. The older people were significantly higher than the younger people at regular intervals of meal times (p < 0.0001) . The majority of the subjects had appropriate meal amounts. $73.5\%$ of the subjects had balanced diets. Unbalanced diet was higher in younger people than in older people. The highest frequency to dining out was once a month and the lower age was significantly higher than older age (p < 0.001) When dining-out, the most important criteria for selecting a meal was the taste of food. $62.4\%$ of the subjects ate meat and greasy animal food more than once a week. The younger in age and higher in educational levels have increased meat intake frequency. In the eating methods of animal fat, $37.5\%$ of the subjects were high by eating generally untouched. The older in age, lower in education level have more increased animal fat intake frequency. $60.7\%$ of the subjects took snacks. The kinds of snacks were fruits, coffee, alcoholic drinks, candies and confectioneries, drinkables and tea, milk and dairy products, in order. Consequently, nutrition education is for them with special emphasis on regularity of meal times, unbalanced diets, dining-out and snacks to the younger people, whereas it is the necessary eating methods of animal fat and snacks to the older people.

• Korean Journal of Community Nutrition
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• v.8 no.3
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• pp.259-269
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• 2003

The purpose of this study was to develop a nutrition education website for children, especially those around the 4th-6th grade levels. Among the already existing websites providing nutritional information for children, 7 websites with comparable amounts of information were evaluated in terms of their topics, credibility, content, ease of use, and aesthetics. In addition, a survey was conducted to assess the need for nutrition information among 305 elementary students. The food pyramid was the topic offered most often on those websites. Information on nutrients, digestion, food safety, nutrition labeling, and healthy eating habits were available on the websites. Some of those websites also provided games or quizzes to attract the children's interest. However, seine of the websites did not give any information on the person responsible for providing the information, which is most important in determining the credibility of the website. Other problems were that some information was too difficult for children, and some of the websites did not provide a way to search for information. According to the survey results, the topics that children wanted to know about were‘desirable weight’,‘cooking’,‘correct food choice’,‘weight control method’,‘calories consumed during exercise’, but, they did not have a high interest in‘asking questions’‘books with nutrition messages’,‘under weight’,‘negative effect of weight control’and‘helping hungry children’. Based on these results, we developed a new nutrition education web-site, ifood’(http: //1 ifood.or.kr). We focused on helping children develop healthy eating habits by providing information which is easy and practical for children. However, we neither included the program to assess their dietary intake, nor provided entertaining background sounds, which children like. Also, the game section is composed mainly of quizzes. Therefore, we need to further develop exciting games to teach nutrition to children. In the near future, the newly developed website should be evaluated by children regarding understandability and coverage of the contents as well as usability and design, and then revised to improve the educational effect.

• Journal of Korean society of Dental Hygiene
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• v.20 no.1
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• pp.53-62
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• 2020

Objectives: The purpose of the study was to analyze the association between dyslipidemia and periodontitis in Korean adults aged 30 and older. Methods: We examined 3,992 subjects participating in the 2015 Korean National Health and Nutrition Examination Survey. Periodontal status was evaluated using the community periodontal index (CPI). People with 3 or 4 CPI codes were classified as the periodontitis group. For statistical analyses, chi-square test and logistic multiple regression were used. Results: The prevalence of periodontitis was higher in men, people aged 70 and over, people whose income status was among the lower 25%, and people whose educational level was high school or lower (p<0.001). The prevalence of periodontitis was higher in people who brushed their teeth twice or less, those who did not use interdental cleaning devices, those who did not have a dental checkup in the last 12 months, and those who had not drunk or smoked (p<0.05). The prevalence of periodontitis was increased with individuals whose BMI was ≥25 kg/㎡, those whose glycated hemoglobin was ≥6.5%, and whose lipid levels were higher or lower than the normal range. In the logistic regression model, an increase in triglyceride was found to increase the prevalence of periodontitis (p<0.05). Conclusions: The study suggests that dyslipidemia, especially hypertriglyceridemia, is a predictor of periodontitis.

• Korean Journal of Digital Imaging in Medicine
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• v.14 no.1
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• pp.1-6
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• 2012

This round of tests in patients with UGI and Esophagography data collected by national and international reference levels based on the original set of guidelines and fluoroscopy, through the provision of medical radiation exposure reduction and further optimization of Defense to realize that is intended. 359 names in our hospital underwent Esophagography 302 patients who underwent UGI average fluoroscopy time and number of images to calculate the average 21 cm Acryl phantom dose for 10 seconds and 20 seconds, average area dose and the area dose of 1 spot image, 5 spot consecutive images by measuring the patient dose and third quartile of the mean area dose was set seonryangin reference dose. Esophagography average patient dose was set to 30.05 $Gy{\cdot}cm^2$, DRL was set at a 25.37 $Gy{\cdot}cm^2$. Average dose of UGI patients were selected as 45.33 $Gy{\cdot}cm^2$, DRL was set at a 34 $Gy{\cdot}cm^2$. UGI patients with established average dose recommended in the 2008 national recommendation from the UGI examination with a dose of less than 49.7 $Gy{\cdot}cm^2$ seonryangin is evaluated. This Note examines the dose of self-aware through education recognizes the importance of dose reduction and examine if their efforts and further reduce patient dose could achieve optimization of the medical exposure is considered.

• School Mathematics
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• v.16 no.3
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• pp.445-469
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• 2014

This study aims to examine secondary mathematics teachers' understanding of the levels of cognitive demand on mathematical tasks suggested in mathematics textbooks. The study also attempts to investigate whether the teachers are able to characterize the tasks accordingly and to change low level tasks to high level ones. For this purpose, we developed a survey and 50 secondary mathematics teachers participated in the survey. The findings from the data analysis suggest that 59 percent of the teachers selected high level tasks as appropriate for achieving the national curricular goals, but about 1/3 of the teachers identified PNC tasks as high level ones. The results also reveal that more than half of the teachers were not able to transform low level into high level tasks and only 4 teachers out of 50 were able to transform successfully. The teachers seem to find difficulty in transforming low level tasks into high level ones.

• Journal of Gifted/Talented Education
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• v.25 no.2
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• pp.261-277
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• 2015

The purposes of this study were to find out what attitude teachers have toward adopting ICT education to educational programs for gifted students, and how ready they are for carrying out ICT education for gifted students. For these purposes, this study surveyed 191 teachers that are currently working for gifted students in various school levels, from elementary schools to junior high and high schools. The major results of this study were as follow: (1) most teachers recognized that enhancing ICT-related capabilites of gifted students is very important, and (2) ICT-related activities in current education programs for gifted students are limited to the basic level, such as web searching for collecting information and making visual presentations using well-known commercial software. Based on the common recognition on the importance of ICT-related capabilites for gifted students, this study suggests that training teachers, as well as employing well-trained teachers, should be the first and most important step for ICT education for gifted students.

• Communications for Statistical Applications and Methods
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• v.18 no.3
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• pp.287-294
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• 2011

Peer assessment is an educational valuation system that involves studying with a colleague and granting value to the progress made by the colleague. Although this method has many merits, there is also a drawback pertaining to calculating the mean of the scores that were granted to the levels of contribution. However, this has been improved upon by a diversified study. However, the concept of the chi-square test and p-value used in the preceding study is not easy individuals engaged in the industrial engineering field or education when using peer assessment. This study uses simple statistics like standard deviation, in addition to, investigating the availability of a suggested method as well as examples of utility and application. This study can contribute to increase the convenience of users through the use of convenience analysis and with this method.

• Journal of the Korean Society of School Health
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• v.26 no.1
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• pp.1-12
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• 2013

Purpose: To examine the effects of appearance satisfaction on school adjustment among adolescents and, further, the mediating effects of self-efficacy between appearance satisfaction and school adjustment. Methods: Conducted a self-report survey of 640 students consisting of sixth, eighth, and tenth graders in the Jeju Special Self-Governing Province. The collected data were analyzed through the independent-sample t-test, the One-way ANOVA, the Pearson's correlation analysis, and the hierarchical multiple regression analysis using the SPSS WIN 18.0 statistical program. Results: First, boys and girls showed statistically significant differences. Boys reported higher levels of appearance satisfaction, school adjustment, and self-efficacy than girls. Second, there were no significant differences in appearance satisfaction and self-efficacy according to the school level. However, statistically significant differences were observed in school adjustment between sixth and eighth graders. Third, students who thought they belonged to the upper class in terms of academic performance and family economy showed the highest level of appearance satisfaction, school adjustment, and self-efficacy. Fourth, there were positive correlations between appearance satisfaction, self-efficacy, and school adjustment. Fifth, self-efficacy proved to have mediating effects between appearance satisfaction and school adjustment among adolescents. In particular, it had a full mediating effect on the relation between appearance satisfaction and adjustment to school life, one of the subfactors of school adjustment. Conclusion: The results suggest that appearance satisfaction is a factor which influences adolescents' school adjustment and that self-efficacy is an important means of mediating between appearance satisfaction and school adjustment. The study is significant in that it highlighted the importance of self-efficacy as one of the important variables to consider when planning various educational programs to help adolescents adjust to their school. In the light of the findings, in an effort to enhance adolescents' self-efficacy and help them lead a harmonious school life in Korea's so-called 'lookism' society, it is necessary to develop and implement counseling programs and character education materials that help adolescents develop a positive perception of their appearance and build self-esteem and self-confidence.