• Journal of the korean academy of Pediatric Dentistry
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• v.43 no.4
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• pp.410-418
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• 2016

This study examined the prevalence of MIH and severity of hypomineralization exhibited by MIH-affected tooth based on the clinical examination of 950 children between age 8 and 9 in the city of Jeonju. The etiology was also studied utilizing a questionnaire on the MIH risk factors. The prevalence of MIH was 7.1%. The examined MIH-affected teeth showed statically significant difference in the degree of their hypomineralization (p < 0.05). The permanent first molar showed greater frequency of MIH compared to the permanent incisor, and the MIH code 2a and 3 were only observed in the permanent first molar (p < 0.05). From the questionnaire, showed the significant relationship between the occurrence of MIH and risk factors such as stress and antibiotics intake during pregnancy, low birth weight and events like hospital admission, frequent respiratory infection, high fever and long-term antibiotics intake within the three years of children's lives (p < 0.05). Among all the possible risk factors, the antibiotics intake during pregnancy only showed high correlation with the incidence of MIH (p < 0.05).

• Journal of the korean academy of Pediatric Dentistry
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• v.43 no.4
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• pp.374-381
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• 2016

The purpose of this study is to compare the effectiveness of sonic and manual toothbrushes using the $L{\ddot{o}}e$ and Silness plaque index (PI). This was an examiner-blind, randomized study with a cross-over design. A total of 34 children (17 males and 17 females) aged 3-6 years were included. Subjects were randomly assigned to two groups: one group used the sonic brush for two weeks before using the manual brush for two weeks, while the other group used the manual brush for two weeks followed by the sonic brush. During each dental visit, plaque indices were recorded and compared to baseline. The results were analyzed using a paired t-test or Pearson correlation test (${\alpha}=0.05$). Thirty children (mean age 4.37 years) complied with the protocol and completed the study. The PI score was 0.09 lower compared to baseline after using a manual toothbrush and 0.26 lower after using the sonic brush. The reduction was statistically significantly greater in the sonic group (p < 0.05). In conclusion, the sonic toothbrush is more effective for reducing plaque than a manual toothbrush.

• Korean Journal of Community Nutrition
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• v.20 no.5
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• pp.327-337
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• 2015

Objectives: Dietary life is closely associated with dietary attitude and diet-related knowledge. Particularly, dietary habit such as sodium intake can be affected by various dietary behaviors such as food choices, dietary attitude toward salty food and a preference for salty taste. The purpose of this study was to assess sodium-related nutrition knowledge and to identify sodium-related attitude and behaviors according to the level of sodium-related knowledge of university students. Methods: Anthropometric measurements were provided by 408 students who participated in this study. The study participants answered questionnaires to provide information on general dietary behaviors, sodium-related dietary attitude and other behavioral factors. A total score of nutrition knowledge was used to categorize study participants in to two groups, namely, low level in sodium-related knowledge (LNaK) or high level in sodium-related knowledge (HNaK) and the attitude and the behaviors of students toward sodium intake were compared between these two groups. Results: The ratio of female students in HNaK group was higher than that in the LNaK group. HNaK group had a higher score in checking nutrition label of processed food than the LNaK group. Total score of sodium-related attitude and behaviors of HNaK group were 34.81 and 32.75, respectively and these scores were significantly higher than that of the LNaK group whose scores were 32.57 and 30.57, respectively. Total energy intake was not different between two groups but the intakes of calcium, vitamin B2 and folate were higher in HNaK group than in the LNaK group. Correlation analysis adjusted for age and gender revealed that total score of sodium-related nutrition knowledge was positively correlated with total score of sodium-related attitude and behaviors. Conclusions: In conclusion, students who had high level of sodium-related nutrition knowledge had desirable attitude and behaviors toward sodium intake and these results can be considered in nutrition education for university students.

• Journal of The Korean Association of Information Education
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• v.20 no.3
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• pp.243-254
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• 2016

This study has produced a checker of the shortest path search problem with a total of 19 questions as a web-based computer evaluation based on the 'TRAFFIC' questions of PISA 2012. It is because the computer has been settled as an indispensable and significant instrument in the process of solving the problems of everyday life and as a media that is underlying in assessment. Therefore, information gifted students should be able to solve the problem using the computer and give clear enough commands to the computer so that it can perform the procedure. In addition, since it is the age that the computational thinking is affecting every sectors, it should give students new educational stimuli. The relationship between the rate of correct answers and the time took to solve the problem through the shortest route search process showed a significant correlation the variable that affected the problem solving as the difficulty of the question rises due to the increase of nodes and edges turned out to be the node than the edge. It was revealed that information gifted students went through algorithmic thinking in the process of solving the shortest route search problem. And It could be confirmed cognitive characteristics of the information gifted students such as 'ability streamlining' and 'information structure memory'.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.6
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• pp.449-458
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• 2016

The study verified the work capacity (job performance, perception, knowledge) and satisfaction on managing the inventory of operating room nurses working in a more than 700-bed hospital. The purpose of this study was to provide basic data of education for work capacity and satisfaction and quality insurance by analyzing the scores between the three different operating rooms and the correlation between the work capacity and satisfaction by investigating the related factors. This study presented a structured and self-administered questionnaire to 181 nurses who had been working in the operating room more than six months. The mean and standard deviation of the job performance, perception, knowledge, and satisfaction were 4.2(${\pm}0.56$), 3.4(${\pm}0.76$), 3.5(${\pm}0.40$), and 3.4(${\pm}0.55$), respectively. The work capacity and satisfaction of each group did not show a statistically significant difference. The correlations between the job performance and knowledge, knowledge and perception, perception and satisfaction were positive (r=.627, p<0.01), (r=.663, p<0.01) and (r=.485, p<0.01), respectively. Among the factors related to the general characteristics of operating room nurses, only age significantly affected their job performance. This study provides basic data on the maintenance and improvement of their competence and satisfaction by being served as a resource for sustainable human resources management and training, and efficient management of the communication channel between hospitals.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.12
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• pp.8585-8595
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• 2015

This study was implemented to amass and analyze the data from 500 Seoul district beauty shop workers, which came from the use of the SPSS18.0. The statistical analysis was conducted through frequency for demographic characteristics, validity for factors analysis by using Varimax rotation, and reliability for Cronbach's alpha coefficient.. Also, the analysis was once again analyzed through the Pearson correlation coefficient, where our hypothesis was proven through regression analysis. Our research results have shown that, first, job satisfaction and job performance differed over matters like gender, age, education level, employment conditions, job category, overall work experience, daily work hours, and monthly income. Second, job satisfaction was shown to have a significant influence on job performance, where higher job satisfaction levels led to higher job performance. Thus, job satisfaction was a great factor to increase job performance by fulfilling their needs level. Also, they would act more positive and future-oriented when they have special needs like motivate achievement, wage, promotion, and reward. Therefore, managerial staff should continually develop any programs in order to upgrade beautician's job performance through their job satisfaction.

• Archives of design research
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• v.20 no.3 s.71
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• pp.5-14
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• 2007

The purpose of this study is to investigate the effects of personal characteristics and body cathexis of middle-aged women on their clothing image preferences. Data was collected using questionnaire from 35 to 59 of age living in Daegu. The questions for personal characteristics included ascendancy, responsibility, emotional stability, sociability and self-confidence. Clothing images included the noble, bold, practical and female. Data were analyzed using SAS, SPSS programs for frequency, percentage, average, correlation, ANOVA, Duncan's multiple range test. The results of this study are as follows: 1. The body cathexis of middle-aged women to their own body is not so high and the satisfaction with their body parts were face features, upper limb, lower limb, torso, height, physique, weight orderly. 2. The more satisfied with their body the higher emotional stability and self-confidence. 3. The more satisfied with the face the more preferred noble, bold, female image in doffing. The more satisfied with the torso and physique the more preferred bold, female image in clothing. 4. Middle-aged women with a high ascendancy preferred bold image and, those with a high responsibility preferred a practical image. Those with a high emotional stability preferred noble, practical image. Middle-aged women having a high sociability preferred noble, male image and having a high self-confidence preferred bole, male image.

• Archives of design research
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• v.20 no.3 s.71
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• pp.107-118
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• 2007

The aim of this paper is to suggest a design guideline for a teaching assistant robot by finding out images that satisfy the role of the teaching assistant robot, and to search for a body features that show such images. Role images of teaching assistant robots were established from literature review and factor analysis. And eight elements of body features were extracted from human's elements of body feature. Robot external form samples varied according to the body feature was modeled three-dimensionally. Children, who are the main users of teaching assistant robots, valuated the 3D robot samples projected onto wall in real size. The valuation basis was role images of teaching assistant robots, adjectives about age and gender, preference, and appropriateness as teaching assistant robots. The result of valuation was analyzed by analysis of variance, and analysis of correlation. The result revealed the fact that four elements of body feature (the ratio of head length, height, the ratio of breast girth, and waist girth) were related to role images. Among these elements, height and waist girth was more important than the rest, particularly, waist girth had strong relation with all the role images. Also, in order to reveal tender and kind image, the ratio of head length was proved to have to be adjusted according to waist girth. On the basis of these result, a design guideline for a teaching assistant robot was suggested.

• Korean Journal of Community Nutrition
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• v.11 no.2
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• pp.271-278
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• 2006

It has been suggested that isoflavones protect the cardiovascular system, in part by attenuating blood pressure. The purpose of the present research was to compare the isoflavone intake and blood lipids between hypertensive and normotensive and to examine dietary management for prevention of hypertension. Anthropometrical measurements, blood pressures, nutrients and isoflavone intakes using the 24-hour recall method, and serum lipids of 81 hypertensives and 77 normotensives were estimated. The average age, height, weight, and BMI were 58.2 years, l58.5 cm, 64.3 kg, and $25.6kg/m^2$ for the hypertensive and 58.0 years, 159.4 cm, 63.0 kg, and $24.8kg/m^2$ for the normotensive, respectively. Systolic and diastolic blood pressures of the hypertensive were significantly higher than those of the normotensive (p<0.001, p<0.001). The daily food intake of the hypertensive was significantly lower than that of the normotensive (p<0.01). The daily energy intakes of hypertensive and normotesive were 1479.8 kcal and 1590.9 kcal and there was no significant difference between the two groups. Carbohydrate intake of the hypertensive was significantly higher than that of the normotensive (p<0.05). However, daily intakes of plant protein, fiber, ash, calcium, sodium, potassium, and vitamin $B_1$ of the hypertensive were significantly lower than those of the normotensive (p<0.05, p<0.01, p<0.01, p<0.01, p<0.05, p<0.05, p<0.05). The daily intakes of daidzein, genistein, isoflavone of the hypertensive were significantly lower than those of the normotensive (p<0.05, p<0.05, p<0.05). However, isoflavone intakes per 1000 kcal showed no significant difference between the two groups. Serum lipids of the hypertensive and normotensive were l89.6 mg/dL and l87.2 mg/dL for total cholesterol, 157.3 mg/dL and 161.9 mg/dL for triglyceride, 42.9 mg/dL and 43.5 mg/dL for HDL-cholesterol, 115.2 mg/dL and 111.4 mg/dL for LDL-cholesterol, and 3.5 and 3.4 for atherogenic index. In the total subjects, there was a significantly negative correlation between systolic blood pressure and genistein intake (p<0.05). Based on these results, we concluded that the daily intakes of food, energy, and isoflavones of hypertensives were lower than normotensives. Therefore, it should be emphasized that proper dietary management considering these dietary factors for prevention of hypertension.

• Korean Journal of Community Nutrition
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• v.4 no.2
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• pp.219-230
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• 1999

The purpose of this study was to find out the common characteristics of eating behaviors of the long-lived elderly in order to offer the basic data for establishing dietary guidelines for a long and healthy life for the general population. The subjects were three-hundred elderly people over age 85 living in Kyungpook Sung-ju who have no problems in daily living. The general characteristics, nutrition knowledge and attitudes, meal patterns, and food preferences of the subjects were surveyed by individual intervies. The levels of the nutrition knowledge of the subjects were very low(average score ; 4.3) and the correlation coefficient between their nutrition knowledge and attitude score was also low(r=0.323, p=0.000). Most of the subjects(93%) had a regular meal pattern consuming three meals a day. The major staple food was rice mixed with other grains(75%) and the number of side dishes was mostly under four(99%). A majority(73%) had no habit of overeating and 51% of the subjects were taking snacks besides regular meals. Thirty one percent of the subjects had drinking habits and 80% of the drinking subjects had over 40 years of drinking history. The most common frequencies for intakes of various food groups were ; more than once a day(95%) for vegetables ; 2∼3 times a week(74%) for green and orange color vegetables ; 2∼3 times a week(72%) for fruits ; once a day(70%) for fish, eggs and legumes ; 2∼3 times a week(49%) for milk ; 2∼3 times a week(72%) for fruits ; once a day(70%) for fish, eggs and legumes ; 2-3 times a week(49%) for milk ; 2-3 times a week(85%) for seaweeds and 2-3 times a week(81%) for foods cooked with oil. The most preferred foods by the subjects were white rice(staple foods), soybean paste soup(soups), beef and eggs(meats and eggs), yellow croaker and hair tail(fish and shellfish), yoghurt(milk and milk products), all vegetables except carrot(vegetables), and watermelon(fruits). The popular food preparation methods included mixing with seasonings and the most preferred taste was sweet. The results showed that the eating pattern of long-lived elderly was characterized by regularity, simplicity, and no overeating.