• Journal of Korean Academy of Oral Health
• /
• v.42 no.4
• /
• pp.216-223
• /
• 2018

Objectives: The purpose of the study was to investigate factors affecting the assessment of objective and subjective masticatory ability in the elderly, and to evaluate masticatory ability assessment more accurately. Methods: A total of 112 participants were recruited after oral examination in senior citizen welfare facilities. The participants' masticatory ability was evaluated objectively (Mixing ability index; MAI), and subjectively (Key food intake ability; KFIA). Participants' general characteristics and oral health-related variables were also recorded. Based on masticatory ability assessment, participants were classified as either high or low. IBM SPSS Statistics Ver.23.0 was used for all analyses, including descriptive statistics, Chi-square test, Mann-Whitney U test, Spearman rank correlation, and Logistic regression analysis. Results: Higher masticatory ability was positively correlated with higher scores on MAI and KFIA. Additionally, there was a significant positive correlation between MAI and KFIA. When analyzing factors affecting objective and subjective masticatory ability assessments, Functional tooth units (FTUs) were revealed as a related factor. In subjective masticatory ability assessment, oral moisture, difficulty in chewing, and the Geriatric Oral Health Assessment Index (GOHAI) were also influential factors. Conclusions: In order to accurately assess masticatory ability, it is necessary to use both objective and subjective measures. Additionally, to improve the masticatory ability in the elderly, treatment should be provided to improve overall oral health and satisfaction.

• Environmental and Resource Economics Review
• /
• v.28 no.3
• /
• pp.355-383
• /
• 2019

This study is to investigate whether averting costs for wearing $anti-PM_{10}$ masks and using air purifiers at home to reduce exposure from $PM_{10}$ are influenced by subjective risk perceptions and/or objective $PM_{10}$ concentration levels, whose estimates will be used to measure the willingness to pay for $PM_{10}$ risk reduction. An empirical analysis was conducted on a sample of 1,224 respondents who participated in the web-based survey in the late October of 2017. As we reflect the potential endogeniety bias in the estimation of averting cost functions of using air purifiers, the coefficients of risk perception were differed by 6~7 times. Respondents. subjective risk perceptions were influenced by individuals' knowledge, attitudes and demographic variables, as well as the levels of $PM_{10}$ concentrations in their residential region. The marginal willingness to pay for risk reductions at the mean levels of their risk perceptions were measured at 1,000 won per month from wearing $anti-PM_{10}$ masks and 6,000 won for using air purifiers respectively.

• Journal of the Korean Society of Marine Environment & Safety
• /
• v.25 no.1
• /
• pp.81-88
• /
• 2019

In order to understand the effects of the main components of antifoaming agents on the marine benthic ecosystem when silicone-based antifoaming agents are discharged into marine environments, eco-toxicity testing was performed on silicone and alcohol-based antifoaming agent by using benthic amphipod (Monocorophium acherusicum) and luminescent bacteria (Vibrio fischeri). The toxic effects of Polydimethylsiloxane (PDMS) as a main component of silicone-based antifoaming agents on aquatic organisms were also researched. In the results of the eco-toxicity test, luminescent bacteria showed a maximum of 9 times more toxic effects than benthic amphipod for alcohol-based antifoaming agents, and silicone-based antifoaming agents showed a maximum of 400 times more toxic effects than alcohol-based. The $LC_{50}$ and $EC_{50}$ values of PDMS ranged from 10 to $44,500{\mu}g/L$ in phytoplankton, invertebrate, and fish. In the results of applying PBT (P: persistency, B: bioaccumulation, T: toxicity) characteristics as an index showing the qualitative characteristics of PDMS, persistency (P) and bioaccumulation (B) were confirmed. Thus, when PDMS is discharged to marine environments, it could accumulate in the upper trophic level through bioaccumulation and the food chain, which could have negative effects on benthic organisms. The results of this study may be used for objective and scientific risk assessment, considering the major components of antifoaming agents when investigating the effects of various discharged antifoaming agents in marine ecosystem.

• Proceedings of the Plant Resources Society of Korea Conference
• /
• 2019.04a
• /
• pp.24-24
• /
• 2019

DMZ 및 접경지역은 지난 60여 년간 인간의 간섭을 받지 않아 세계적으로 우수한 생태계의 보고이며, 백두대간, 도서연안과 함께 한반도 3대 핵심생태축의 하나로서 한반도생태계보전을 위한 가장 중요한 지역이다. 이러한 DMZ 및 접경지역에 대하여 국내적 중요성 인식 제고뿐만 아니라 국제적으로도 중요생물다양성지역(KBAs)으로서의 가치인식을 위해 IUCN에서 제시하는 평가기준을 검토하고 이의 기준을 적용하여 DMZ의 생물다양성에 대한 국제적 가치정도 판단 및 중요생물다양성지역(KBAs)으로서의 보전방안을 수립하고자 한다. 첫째, DMZ 일대를 대상으로 서식하는 자생식물의 분포지역을 파악하여 DMZ 및 접경지역의 식물상은 18과 139속 367종 1아종 44변종 10품종 422분류군으로, 총 138과 613속 1,517종 8아종 217변종 58품종으로 총 1,800분류군으로 확인되었다. 본 연구대상지의 동부지역에서 가장 많은 1,482분류군, 중부지역은 1,225분류군, 서부지역은 1,080분류군으로 가장 적은수의 식물이 확인되었다. 둘째, DMZ 및 접경지역을 대상으로 객관적이고 정량적인 방법을 통한 DMZ 및 접경지역의 중요생물다양성지역(KBAs) 지정기준을 적용하여 개느삼, 금강초롱, 모데미풀 3종을 중요생물다양성지역(KBAs) 후보종으로 선정하였다. 후보종별로 분포예측 결과 전체 면적 $5,270.5km^2$ 중요생물다양성지역(KBAs) 지정을 제안하였다. 셋째, 지정기준을 통하여 선정된 DMZ 및 접경지역에 서식하는 주요 식물에 대한 국제적 가치를 판단하여 우리나라 상황에 맞는 중요생물다양성지역(KBAs)을 적용함으로써 효과적인 관리방안으로 투명하고 체계화된 국제적 기준으로 해당 지역 내의 생물종 다양성을 지속가능하게 보호하기 위한 구체적인 방향 설정 및 관리를 위한 노력이 이루어질 수 있도록 유도 할 수 있다. 수집된 자료를 통하여 중요생물다양성지역(KBAs)에 적합한 종을 중심으로 보호구역을 지정하고 국내적으로 중요한 지역적 멸종위기종에 대한 적용을 추가적으로 진행하여 식물다양성이 중요한 지역의 보호를 위한 우선순위 및 구체적 접근계획을 수립할 수 있을 것으로 판단된다. 국가적인 차원에서 DMZ 및 접경지역의 지속적인 조사를 통하여 중요생물다양성지역(KBAs)기준 적용에 필요한 기초자료를 충분히 수집하고 국내 환경에 부합하는 중요생물다양성지역(KBAs)기준 적용을 통하여 꾸준히 재평가하여 후속연구의 발판을 마련하여야 한다.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.20 no.7
• /
• pp.380-386
• /
• 2019

Shoulder joint pain is a very common musculoskeletal disorder, in which about 20 percent of adults experience it more than once in their lives. In this study, an objective assessment was made that subacromial space was increased by pectoralis minor stretching exercise, which has a positive effect on impingement syndrome and shoulder pain. Also, This study examined the effects on pectoralis minor length(PML) and acromio-humeral distance(AHD) following pectoralis minor self-stretching exercise in normal adults. In this study, a total of 30 subjects were recruited and randomly divided into a self-stretching exercise group(n=15) and manual stretching exercise group(n=15) to compare the immediate effects of treatment. Studies have shown that both groups have significantly increased both PML and AHD within the group(p<.05). There was no statistically significant difference in the comparison between the groups(p>.05). The results suggest that self-stretching exercise can be recommended as a treatment method for impingement syndrome and prevention of shoulder disease.

• Journal of the Society of Disaster Information
• /
• v.14 no.4
• /
• pp.480-491
• /
• 2018

Purpose : This study aims to suggest social support composed of organizational support and managerial support would be systematically managed to enhance Disaster Operations Management at Seoul Emergency Operations Center. Method : Emotional labor was used as an independent variable, and organizational commitment was used as a dependent variable to analyze the mediating effects of social support. Results : First, in the aspect of organizational support, the objective evaluation of disaster situation management, disaster situation management emotional labor reduction education and training program development, monitoring of disaster situation management, quality improvement and work imbalance mitigation of firefighters, and emergency coordination managers are needed for systematic work management for emotional labor settlement. Secondly, it is necessary to select competent firefighters in the level of managerial support, to prepare healing measures for structured phased emotional labor for firefighters, and to have counseling competency for managers for emotional labor firefighting officers. Conclusion : In order to improve disaster management ability, education and training programs should be developed to improve organizational commitment based on social support.

• The Journal of Korean Philosophical History
• /
• no.30
• /
• pp.7-36
• /
• 2010

Cho Gwang-jo(趙光祖, 1482-1519) was the moralist who had the purest conscience and aimed the devoted politics among many fellow Confucianists of Chosun Dynasty. He even criticized his teacher who was in his late forty years for not being able to control his emotions when he was just a teenager. That is to say, he was the one who have kept his cold reasons for entire life. Nevertheless, as mentioned before, Cho Gwang-jo was very faithful to his emotions and also very honest. We find that he was definitely emotional. He demanded to change the relationship between the king and the courtier to the one between the father and the son with humane communication. He expressed his mind and emotion he had used to have at the moment of his death: he loved his king just as he loved his father. However, the king, Joongjong, was indifferent at the human's emotion as if he was a senseless figure. That was the saddest frustration and grief he had. However, his grief did not remained just as the mere grief but again survived as the hope for the survivors and descendants with the big echo. In this respect, his gried did not just end as the grief but it can be said that it even revived itself as the strength and courage. Then, Cho Gwang-jo's life as a human being was never a failure. Moreover, his grief and agony did not just remained as the vain emotion and sadness.

• Journal of the Korea Society of Computer and Information
• /
• v.25 no.12
• /
• pp.321-331
• /
• 2020

The purpose of this study is to explore the impact of home stay platform on guests' willingness to comment online under the Shared home stay business model. Shared platform of home stay facility in addition to providing a variety of support services, help the landlord to the tenant do offline accommodation services, implementation, trading, will need to take some measures to actively promote the tenant groups to the landlord, the evaluation is objective, effective and sufficient number in order to better promote the sharing credit ecological establishment of home stay facility. In this study, consumers who have used the Shared home stay platform are taken as the research objects. The survey method adopts network questionnaire survey and Likert seven subscales. The statistical software SPSS24.0 program is used to process the data. Firstly, descriptive statistical analysis was conducted, followed by validity analysis and reliability analysis. After the reliability and validity of the questionnaire were determined, correlation analysis and regression analysis were used to verify the proposed hypothesis. The research results of this study are summarized as follows :(1) the usability of platform comment function, guest satisfaction and platform reward have a positive impact on the guest online comment willingness; (2) The credit mechanism of the platform has a positive regulating effect on the process of tenant satisfaction influencing tenant comment intention.

• Journal of Korea Society of Industrial Information Systems
• /
• v.25 no.6
• /
• pp.33-45
• /
• 2020

This paper aims to look at the perspective that the latest cutting-edge technologies are predicting individual diseases in the actual medical environment in a situation where various types of wearable devices are rapidly increasing and used in the healthcare domain. Through the process of collecting, processing, and transmitting data by merging clinical data, genetic data, and life log data through a user-participating wearable device, it presents the process of connecting the learning model and the feedback model in the environment of the Deep Neural Network. In the case of the actual field that has undergone clinical trial procedures of medical IT occurring in such a high-tech medical field, the effect of a specific gene caused by metabolic syndrome on the disease is measured, and clinical information and life log data are merged to process different heterogeneous data. That is, it proves the objective suitability and certainty of the deep neural network of heterogeneous data, and through this, the performance evaluation according to the noise in the actual deep learning environment is performed. In the case of the automatic encoder, we proved that the accuracy and predicted value varying per 1,000 EPOCH are linearly changed several times with the increasing value of the variable.

• Journal of Digital Convergence
• /
• v.19 no.1
• /
• pp.107-115
• /
• 2021

This study empirically analyzed the effect of SME representative competency on account receivable management and management performance using questionnaire data. The research model was confirmed through EFA, reliability analysis, CFA, and model fit, and the hypothesis was verified with a SEM. As a result, representative's manager competency had a positive(+) effect on account receivable management, and entrepreneurial competency had a negative(-) effect on credit control management. Account receivable management had a positive(+) effect on management performance. In the mediating test, credit sales management had a positive(+) effect but credit control management had a negative(-) effect on the effect between entrepreneurial competence and business performance. The result suggests that representative competency is an important factor and it is necessary to cultivate management competencies such as finance, utilization of management resources, and account receivables knowledge to improve management performance, and to manage account receivable based on insurance and customer credit for stable account receivable management. In the future, research on the impact of external factor such as consulting and government support and the account receivable management is required.