• Journal of Convergence for Information Technology
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• v.11 no.6
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• pp.171-180
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• 2021

This study was conducted to investigate the effects of oral care behavior, oral health care self-efficacy, and social support on the subjective oral health level of the elderly. The data survey was conducted from September 17, 2019 to November 22, 2019 for the elderly living in Daejeon Metropolitan City and parts of Chungcheongnam-do, and the collected data were analyzed by 𝑥2-test, Pearson correlation analysis, and logistic regression analysis. As a result of the survey, subjective oral health level increased by 3.242 times when dentures were not used and 2.339 times when the number of brushings per day was 3 or more times. In addition, as the oral health care self-efficacy and social support increased 1.755 times and 1.192 times, respectively, the subjective oral health level also increased. Based on the above results, in order to improve the subjective oral health level of the elderly, opportunities for oral health education such as denture care methods and toothbrushing lessons should be expanded. In addition, there is a need to prepare policies to reinforce oral health care self-efficacy and social support.

• Journal of Convergence for Information Technology
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• v.11 no.6
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• pp.162-170
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• 2021

This study attempted to grasp the causal relationship, focusing on the double mediating effect of career identity and career decision self-efficacy in the relationship between grit and career preparation behavior. Data were collected by a self-entry method using structured questionnaire for dental hygiene student in area B. And it was analyzed using SPSS and Process Macro. The biggest factor directly influencing career preparation behavior was career identity, followed by grit and career decision self-efficacy. Through path analysis, grit indirectly had a significant influence on career preparation behavior through the mediating sense of career identity and the sense of career identity and career decision self-efficacy. This suggests that grit and career identity should be enhanced for active career preparation behavior, so it is intended to be used as basic data for career education contents development for college students majoring in dental hygiene.

• Journal of Convergence for Information Technology
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• v.11 no.6
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• pp.213-218
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• 2021

In this paper, we detect and track vehicles by type based on highway daytime driving videos taken with black boxes for vehicles. In addition, we design a real-time MR contents production method that can be newly created by placing substitute videos of each type of detected vehicles in the same location as the new background video. To detect and track vehicles by type, we use the YOLO algorithm. And we also use the mask technique based on RGB color for substitute videos of each type of vehicles detected. The size of the vehicle substitute videos to be used for MR content are substituted by the same size as the area size of the detected vehicles. In this paper, we confirm that real-time MR contents design is possible as a result of experiments and simulations and believe that It will be usefully utilized in the field of VR contents.

• Journal of Convergence for Information Technology
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• v.11 no.6
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• pp.181-187
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• 2021

As the aging society progresses and the functional cosmetics market is revitalized we have learned that the functional cosmetics that the silver generation is most interested in are wrinkle-improving products and we are making great efforts to develop functional cosmetics that improve wrinkles. The ingredients are actually making. From the early 2000s when the development of functional cosmetics began to the present the research trends of functional cosmetics for wrinkle improvement were analyzed by analyzing papers on functional cosmetics for wrinkle improvement. Research methods focused on literature search and SIRS paper search keywords. And the cosmetic material that needs to be researched focuses on the anti-aging function among functional cosmetics which is the anti-wrinkle function. The research results show the rapid growth of the Anti-aging market. As the population ages the generation of silver with high purchasing power will expand and a market for expensive anti-aging products and services for a healthy old age will be formed.

• Journal of Convergence for Information Technology
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• v.11 no.6
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• pp.139-145
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• 2021

This study was conducted to find out the effect of job-crafting of social workers at community children's centers on the satisfaction of children. This study used a multi-level analysis model that calculated the child factor (level 1) and the social worker factor (level 2) by utilizing the responses of 31 social workers and 216 children used at 31 community children's centers. The main research results are as follows: First, it was found that 34.3% of the total variation in child satisfaction was due to differences by community children's centers. Second, it was found that the number of hours used per day in the child factor (level 1), and gender, age, and job-crafting in the life worker factor (level 2) affect the satisfaction of children. Based on these results, measures to improve the satisfaction level of children using community children's centers were discussed.

• Journal of Convergence for Information Technology
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• v.11 no.6
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• pp.188-197
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• 2021

In this study, the optimal conditions for hair dyeing using sappan wood (Caesalpinia sappan L.) powder were determined, and then the effect of chitosan treatment on the hair dyeing properties of sappan wood powder was investigated. Treatment of sappan wood powder and water with the ratio of 1:3 (w/w) at 40℃ for 60 minutes was found to be the most effective to hair dyeing. In addition, the pretreatment of low molecular weight (~30 kDa) chitosan at a concentration of 1% (w/w) prior to treatment with sappan wood powder effectively improved and maintained the hair dyeing properties of sappan wood. In conclusion, the low molecular weight chitosan is considered to be of great help as a mordant in improving the dyeing efficiency and retention of sappan wood powder in hair dyeing.

• Journal of Convergence for Information Technology
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• v.11 no.6
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• pp.198-205
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• 2021

Objectives: Antibiotics help treat Vaginitis, and prolonged usage of antibiotics can lead to resistance. Methods: This study investigates the antimicrobial activity of two types of lactic acid bacteria using essential oils. After cultivation by adding grapefruit seed extract (GSE), eucalyptus, tea tree, clove bud, cinnamon, lemongrass, thyme, and ginger oils in a specific ratio, pathogenic microorganisms, namely E. coli, C. albicans, and lactic acid bacteria were released. The number of bacteria was measured using a medium suitable for the strains. Results: The essential oils and GSE inhibited pathogenic microorganisms, and the inhibitory concentration of GSE against pathogenic bacteria (E. coli, C. albicans) was confirmed. The non-inhibitory mixing ratio was also confirmed (50 μl of eucalyptus globulus (EG) oil and 50 μl of melaleuca alternifolia oil (tea tree oil, TTO) at 200 ppm GSE (pH 5.0, 5.5, 6.0)). Conclusion: Essential oils can be considered as an alternative to antibiotics because of their antibacterial properties. They are useful as auxiliary antibacterial agents for patients under long-term antibiotic treatment.

• Journal of Convergence for Information Technology
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• v.11 no.6
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• pp.64-72
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• 2021

The purpose of this study was to investigate the responsibility & critical thinking disposition and identify influencing factors of clinical competence of nursing students who have completed clinical practice. Data collection was performed from Dec. 11th, 2019 to Dec. 13th. A total of 119 4th grade nursing students were selected. Data were analyzed with descriptive statistics, t-test, ANOVA, Scheffé test, Pearson's correlation and stepwise multiple regression analysis using SPSS 25.0. As a result of this study, the correlated factors of clinical competence included responsibility(r=.53, p<.001), critical thinking disposition(r=.71, p<.001). The factors influencing clinical competence were critical thinking disposition(𝛽=.56, p<.001), responsibility(𝛽=.32, p<.001), and clinical practice satisfaction(𝛽=.13, p=.012). These factors accounted for 52% of the clinical competence(p<.001). Therefore, it is necessary to develop and apply educational programs so that concrete and practical education for reinforcing critical thinking disposition and responsibility can be performed together with clinical practice.

• Journal of Ginseng Research
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• v.45 no.3
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• pp.442-449
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• 2021

Background: Panax ginseng is an important crop in Asian countries given its pharmaceutical uses. It is usually harvested after 4-6 years of cultivation. However, various abiotic stresses have led to its quality reduction. One of the stress causes is high content of heavy metal in ginseng cultivation area. Plant growth-promoting rhizobacteria (PGPR) can play a role in healthy growth of plants. It has been considered as a new trend for supporting the growth of many crops in heavy metal occupied areas, such as Aluminum (Al). Methods: In vitro screening of the plant growth promoting activities of five tested strains were detected. Surface-disinfected 2-year-old ginseng seedlings were dipping in Rhizobium panacihumi DCY116^T suspensions for 15 min and cultured in pots for investigating Al resistance of P. ginseng. The harvesting was carried out 10 days after Al treatment. We then examined H₂O₂, proline, total soluble sugar, and total phenolic contents. We also checked the expressions of related genes (PgCAT, PgAPX, and PgP5CS) of reactive oxygen species scavenging response and pyrroline-5-carboxylate synthetase by reverse transcription polymerase chain reaction (RT-PCR) method. Results: Among five tested strains isolated from ginseng-cultivated soil, R. panacihumi DCY116^T was chosen as the potential PGPR candidate for further study. Ginseng seedlings treated with R. panacihumi DCY116^T produced higher biomass, proline, total phenolic, total soluble sugar contents, and related gene expressions but decreased H₂O₂ level than nonbacterized Al-stressed seedlings. Conclusion: R. panacihumi DCY116^T can be used as potential PGPR and "plant strengthener" for future cultivation of ginseng or other crops/plants that are grown in regions with heavy metal exposure.

• Journal of Convergence for Information Technology
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• v.11 no.1
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• pp.54-61
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• 2021

This study aimed to understand the factors having effects on the satisfaction with clinical practice of nursing students. For the data collection, this study conducted a survey utilizing the questionnaire targeting 188 students(third & fourth year) of two nursing colleges located in a province, from September 1st to September 30th 2019. Using the SPSS WIN 21.0 Program for the data analysis, this study used the t-test, ANOVA, Scheffe test, Pearson correlation coefficient, and multiple regression analysis. In the results of this study, the satisfaction with clinical practice of nursing students had positive correlation with subjective happiness, and negative correlation with perceived stress. The factors having effects on the satisfaction with clinical practice were major satisfaction, gender, perceived stress, subjective happiness, and subjective health status, and the explanatory power of those variables was 21.9%. Based on such results of this study, it would be necessary to develop the complex educational programs considering the elements like decrease of perceived stress and improvement of subjective happiness at the same time, in order to improve the satisfaction with clinical practice.