• Journal of the Korea Convergence Society
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• v.12 no.5
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• pp.31-38
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• 2021

Recently, devices that help the general public's urination activity have been developed, but products that take into account the user's urination habits, device functions, and user accessibility are still insufficient. This study conducted a usability evaluation to find user satisfaction and improvement points of products based on smart automatic urine disposer that have convergence and complex functions such as automatic suction functions. There are 21 indicators used in usability evaluation, and were developed based on safety, operability, and satisfaction. As a result, functional satisfaction was high, but in terms of design, problems to be improved such as handles were presented. Therefore, through this study, it was found that the satisfaction of the automatic urine disposer in terms of performance cannot be representative of the product, and the importance of developing usability evaluation index to find product problems.

• Journal of Korean society of Dental Hygiene
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• v.19 no.5
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• pp.743-752
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• 2019

Objectives: Grip strength is a measure for assessing overall muscle strength, muscle mass, and nutritional status, and is a useful tool for early examination of a person's general health. Thus, this study analyzed the association between oral health-related factors and grip strength, using the 6th Korea National Health and Nutrition Examination Survey (KNHANES) data. Methods: Data were analyzed using the IBM SPSS version 25.0 (IBM Co., Armonk, NY, USA) software with a complex sampling analysis of stratified and clustered variables, all with weighted values, applied for every analysis conducted. From the 6th KNHANES data, a total of 26,101 people were selected as the study population. A complex sample generalized linear model analysis was performed for participants' sociodemographic characteristics, health status, use of oral care products, and factors such as adult mastication and speaking habits. Results: Grip strength was found to be higher among men compared to women. Grip strength was the highest in the 20-39 year old group. Furthermore, grip strength was statistically significantly higher among married and employed individuals, and in the right hand (p<0.001). Grip strength was statistically significantly higher among people who perceived themselves to have good health and among those who did not have health-related problems in the past two weeks (p<0.001). It was also higher among those who used interdental brushes and electronic toothbrushes (p<0.001), but decreased with greater discomfort in mastication and speaking among adults (p<0.05). Conclusions: Grip strength was found to be associated with oral health-related factors and therefore, these could be helpful tools in evaluating both general and subjective health statuses. In general, oral care products are small in size with oral care involving the use of hands and certain precise motions and actions to remove foreign substances in the oral cavity. As shown in the findings, grip strength declines with increased age and as a result, the use of oral care products should be strongly recommended in order to promote better general health.

• The Journal of the Convergence on Culture Technology
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• v.5 no.1
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• pp.153-167
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• 2019

Purpose: The aim of this study was to examine factors influencing health-related quality of life in middle and old adult one-person households. Method: This study carried out secondary analysis using the data from the $7^{th}$ Korean National Health and Nutrition Examination Survey. Subject samples who were selected are 497 middle and old adult one-person households over 40 years. Data were analyzed using descriptive statistics, simple and multiple regression techniques with the SPSS/WIN 24 program. Result: Factors influencing health-related quality of life in middle adult one-person households were activity limitation, depression, exercise, smoking habits with 57% prediction. In male old adult one-person households they were subjective health, metabolic syndrome, activity limitation, perceived stress with 44.8% prediction and in female old adult one-person households they were subjective health, activity limitation, home income with 35.9% prediction. Conclusion: Therefore, to improve their health-related quality of life it needs to develop & to apply national and local promotion policy and intervention program on health-related quality of life of middle and old adult one-person households.

• Journal of dental hygiene science
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• v.21 no.2
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• pp.127-132
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• 2021

Background: Obesity and dental caries have common risk factors such as food intake, eating habits, and lifestyle. Nevertheless, there has been no consensus on the significant association between obesity and dental caries, and additional studies are needed. We investigated the relationship between obesity and dental caries in some college students in this pilot study. Methods: Forty-two obese college students (body mass index [BMI]≥25) registered at a University Obesity Clinic and 19 normal students (18.5≤BMI<25) were recruited. Oral examinations were conducted, and anthropometric data and blood samples were collected. The blood concentrations of low-density lipoprotein (LDL), high-density lipoprotein, and triglyceride were also measured. After controlling for dental plaque index, a univariate analysis of dental caries indicators related to obesity was performed; partial correlation analysis was also conducted. A nonparametric test was used for the analysis of gender-related trends due to the limited number of participants. Results: The obese group had significantly fewer missing teeth (p=0.014), missing surfaces (p=0.035), filled surfaces (p=0.038), and decayed-missing-filled surfaces (p=0.020) than the normal group. There was no difference between the males in the normal and obese groups. The females in the obese group had significantly fewer missing teeth (p=0.003), missing surfaces (p=0.003), and decayed-missing-filled surfaces (p=0.046). Partial correlation analysis showed a weak negative correlation (r=-0.256) between the blood LDL concentration and decayed-missing-filled teeth. The other obesity and dental caries indicators were not correlated. Conclusion:The blood cholesterol concentration had a negative relationship with dental caries, and there were fewer cases of dental caries in the obese group in this study. However, it is important to clarify the relationship between obesity and dental caries through a dietary survey or additional investigations considering other confounding factors.

• Journal of The Korean Association of Information Education
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• v.7 no.1
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• pp.130-139
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• 2003

In elementary moral education, performance assessment should be conducted in both cognitive, affective, and behavioral domains in harmony. The present study attempts to consider the features of performance assessment in elementary moral education; classify them by the types of assessment, and; implement and apply the web-based performance assessment system, in which teachers, students, and parents all participate. The development of this web-based performance assessment system for elementary moral education allowed the students to carry out the performance assessment process by themselves and to see the result no matter when and where they are. The students became interested in their own behavior, and the parents got to have a broader range of understanding for their children by participating in personal in the assessment procedure. The parents also realized that home guidance for their children's life habits became pretty easy. It is expected that the performance assessment system carried out based on the collaboration between the school and the family will be helpful in applying the contents of the moral subject studied at school and the relevant knowledge and skills to the actual life outside the school.

• The Journal of the Korea Contents Association
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• v.18 no.8
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• pp.127-147
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• 2018

The purpose of this study is to investigate the influence of service quality factors and related ties on the repurchase intention of home shopping products and application home shopping through smart media using relation bonding according to the platform. In this study, it was confirmed that the relationship between home shopping and home shopping follows the process of establishing brand equity by mediating or partially mediating the influence relationship between specific service quality factor and repurchase intention. At this time, the mediating effect of the relationship tying is different according to the home shopping platform, but the relation of the TV + application group to the use of TV home shopping has no mediating effect. Also, according to users' usual media usage habits, service quality factors for home shopping have different influence relations on repurchase intention through relationship binding.

• Korean Journal of Plant Taxonomy
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• v.32 no.4
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• pp.397-416
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• 2002

A taxonomic study of Viola section Chamaemelanium in Korea, based on morphological characters, was conducted with light microscopy and scanning electron microscopy. Two species, V. orientalis W. Becker and V. brevistipulata (Fr. et Sav.) W. Becker, are recognized by rhizome and cauline habits, trichomes on the ovary and the shape and beards of stigmas. The latter can be split further into three varieties, var. brevistipulata, var. minor Nakai and var. laciniata (Boiss.) W. Becker, according to the leaf morphology in particular. Viola brevistipulata var. laciniata has the most tooth number, and its teeth are irregular erose but the other two varieties are regular sinuate or serrate. As for the size of leaves, V. brevistipular var. brevistipulata is the largest but V. brevistipulata var. minor is the smallest among the varities. Of them, V. brevistipulata var. laciniata is newly recorded in Korea. It was also revealed that both development and arrangement of the beards developed on the ovary and stigma were particularly diagnostic in the identification of the Viola section Chamaemelanium species.

• Journal of dental hygiene science
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• v.4 no.1
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• pp.27-32
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• 2004

This study intended to identify how our children are aware of dental health and motivate them to learn reasonable knowledge about dental health. Furthermore, it also aimed to induce them to change their awareness and behavioral style about dental health, so that they may keep good habits for dental health for their lifetime. Total 1,044 samples were collected from children who were all 12 years old and lived in Seongnam city. During six months (June to December 2002), they were asked to participate in questionnaire survey about consumer behavior, knowledge, attitude, activity and self-diagnosis for dental health. The results of questionnaire survey can be outlined as follows: (1) The results of investigating consumer behavior for dental health showed that 34.5% of total respondents ever visited dental clinics once or more within latest one year, 21.4% ever visited dental clinics for the sake of prevention, 70.6% were instructed in dental health program, 31.7% were treated with the fluorination, 36.9% were treated with dental sealant, and 17.1% were treated with scaling, respectively. (2) For 10 items asking reasonable knowledge about dental health, respondents answered to 5.06 items on average. (3) For 10 items asking reasonable attitude for dental health, respondents answered to 5.41 items on average. (4) For 10 items asking reasonable behavior, respondents answered to 4.53 items. (5) For 10 items asking reasonable self-diagnosis for dental health, respondents answered to 5.65 items.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.05a
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• pp.629-630
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• 2017

Recently, the number of patients with habitual vertebrae is increasing due to inappropriate postures and habits while sitting on a chair for a long time, because modern people have a great deal of work and studying due to a lot of work and study. Therefore, it is necessary to prevent such a disease through real-time monitoring and to present a guide for the user to recognize the importance of correct posture. In this study, we implemented a posture discrimination system which can help users to calibrate posture by judging the user's sitting position and feedback by using a pressure sensor based weight distribution system. We analyzed the distribution pattern of body weight to determine one normal posture and six abnormal postures. If the abnormal posture is maintained constantly, the implementation of the application that induces the right posture by ringing the notification is described.

• Journal of the Korean Applied Science and Technology
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• v.40 no.4
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• pp.890-896
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• 2023

This study aims to examine the relationship between serum folic acid levels and metabolic syndrome. The analysis data were downloaded and used for the 7th 3rd (2018) data of the National Health and Nutrition Survey and in this study, 495 men, 706 women, and a total of 1,201 people were finally analyzed. The data analysis used Chi-square and t-test for the difference in serum folic acid according to general characteristics, Pearson correlation for the relationship between sub-factors of metabolic syndrome, and logistic regression analysis for serum folic acid levels and metabolic syndrome indicators. According to the results of this study, there was a significant negative correlation between serum folic acid levels and waist circumference (r=-0.113, p<0.01), triglyceride (r=-0.086, p<0.05), and HDL-cholesterol (r=0.086, p<0.05) showed a significant positive correlation. As a result of regression analysis, in the case of HDL-cholesterol, the group with normal serum folic acid levels was significantly higher than the group with low (p<0.05). Therefore, through this study, it is proposed to develop appropriate eating habits and health education programs to prevent metabolic syndrome.