• 대한치과보철학회지
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• 제59권2호
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• pp.228-237
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• 2021

일생에 걸친 치아의 생리적 마모는 자연스러운 과정으로 여겨지고 있지만 치아 마모가 교합 수직고경의 감소, 저작 시 통증 및 저작 기능 상실, 심미성 소실 등의 병적 변화를 일으킨다고 판단되는 경우 치과의사가 이를 회복시켜주어야 한다. 본 증례 환자는 '아래 앞니가 입천장에 닿아서 아프다'는 주소로 내원하였다. 상악의 부적절한 보철물에 의한 하악 치열의 의원성 마모와 그에 따른 외상성 교합이 발생한 것으로 진단하였다. 진단모형 분석 및 납형조각을 통해 수직고경 거상을 결정하였으며 상악 및 하악을 적절한 고정성 보철물로 재수복하여 심미적 및 기능적으로 만족스러운 결과를 얻었기에 이를 보고하고자 한다.

• 자동차안전학회지
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• 제13권4호
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• pp.60-65
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• 2021

The event data recorders (EDR) have been used as a device to help understand traffic accidents. With the recent development of autonomous vehicle (AV), it has become important to prepare the new EDR for AV. Therefore, the purpose of this study is to propose the direction of EDR-AV recording. First of all, the recent EDR data elements and the data elements of AV under discussion at UNECE WP29 EDR/DSSAD (Data Storage System for Automated Driving) were analyzed. The consumer complaint database in Motor Vehicle Recall Center in Korea was analyzed in order to utilize cases of domestic traffic accidents related to advanced driver assistance systems (ADAS). Consequently, problems with existing EDR were identified through unclear accident cases related to ADAS. In the future, it was proposed to record images in which the ADAS perception systems recognize the surroundings of the accident site as an EDR-AV recording item.

• Entomological Research
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• 제48권6호
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• pp.540-549
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• 2018

Climate change due to global warming and changes in land use increase the development time and distribution, as well as the abundance, of mosquitoes, thereby negatively affecting human life and health. In this study, we investigated the habitat characteristics of mosquito occurrence sites in Danwon-gu, Ansan city, Korea, based on a daily record of civil pest complaints lodged at the Danwon-gu Community Health Center. We considered two types of factors (natural and artificial) known to affect mosquito occurrence. We confirmed a total of 554 cases of mosquito occurrence from March 2014 to August 2017. The total study area was $49.11km^2$, with urban areas constituting the largest proportion. Additionally, we investigated habitat preferences of mosquitoes in terms of terrain factors; generally, mosquitoes occurred at low elevations and on low slopes. Regarding the preference of oviposition sites, mosquitoes occurred at higher rates near streams and crops lands. The rate of mosquito occurrence tended to increase in areas with dense human populations. Regarding climatic factors, the rate of mosquito occurrence increased in areas with high temperature and low precipitation.

• 대한약학회:학술대회논문집
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• 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2
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• pp.281.1-281.1
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• 2002

Psoralen(7H-Furo［3.2-g］ ［1］benzopyran-7-one) and angelicin(2-Oxo-[2H]- furo[2.3-h]-1-benzopyran) are angular furocoumarin with diverse photobiological effects. They are major components of Psoralea corylifolia L.(破古紙). Psoralea corylifolia L. is used for a tonic and nursing one's energy. It can be also used for loss of virility. vitiligo. a skin disease, etc.. But a well known and often appreciated side effects f psoralens is the hyperpigmentation caused by this treatment. A women who used the herbal drug-mixed-medicine named'sobaeksu' to treat her vitiligo made a complaint against the orinetal medical doctor. She complained that her skin got burned to 2nd degree by the liquid. 'sobaeksu' through a medical celtficate. So we analyzed the components of that liquid with gas chromatography and gas chromatography/mass spectometry. It has 57.3% ethyl alcohol and two kinds of psoralens. Psoralens were psoralen and angelicin and each one of their contained quantity was 0.128mg/ml and 0.123mg/ml.

• Imaging Science in Dentistry
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• 제51권2호
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• pp.217-222
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• 2021

Ewing sarcoma in the head and neck is rare, and metastasis from other bones to the mandible accounts for 0.7% of cases. This report presents a case of oral metastasis in a 24-year-old male patient diagnosed with Ewing sarcoma of the femur (p53 gene mutation and EWSR1-ERG fusion). The chief complaint was numbness in the mandible and pain for 1 month and a hardened, ulcerated exophytic lesion in the right retromolar region. Imaging exams revealed an unspecified thinning of the cortical bone of the inferior alveolar canal in the right mandibular ramus, associated with erosion of the alveolar bone. Histopathological analysis confirmed metastasis of Ewing sarcoma. The patient presented an aggressive disease progression and died 1 month after the oral diagnosis. It is important to recognize the signs and symptoms compatible with rare clinical outcomes, leading to an early diagnosis that can improve patients' quality of life and survival.

• 대한치과의료관리학회지
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• 제8권1호
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• pp.30-36
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• 2020

This study is conducted on 1,725 elderly people over 65 years of age using 2018 data obtained from the 7th National Health and Nutrition Survey (KNHANES) data. In this study, an analysis is performed considering the general characteristics of the elderly and their oral health status (authoring discomfort, speech problems, etc.) to confirm the relationship between the elderly's unmet dental experience and depressive experience. The results of this study showed that depressive experiences by the elderly resulted in unmet dental medical experiences, and it was also found that the income level and the complaint of chewing discomfort had an effect. Based on these results, it is believed that oral health policies should be developed to improve the unmet dental medical experience by considering the socio-economic level of the elderly and depressive experiences. This policy development is expected to lead not only to the improvement of oral health for the elderly, but also to improve the quality of life for the elderly through health promotion.

• International journal of advanced smart convergence
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• 제12권1호
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• pp.108-119
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• 2023

Instatoon is a type of webtoons distributed through Instagram, but in the process of advancement of the webtoon industry, it shows the possibility of diversifying into a new genre that meets creativity, and diversity beyond uniform commercial webtoons. Since it does not go through a large platform, the content is freely composed. In addition, it is differentiated from other types of webtoons because in many cases artists create instatoon by adding entertaining elements into their real-life stories rather than drawing fictional ones. Furthermore, instatoons are free to enjoy, satisfaction level is high, but in most cases, even if there is a complaint, readers just enjoy webtoons without expressing it. We aimed to find out how the service quality characteristics of these instatoons affect behavioral intentions through the coexistence of satisfaction and dissatisfaction of readers, and meaninful results were found through empirical analysis. We discusses factors affecting the spread of Instatoons, including readers' satisfaction and dissatisfaction, the importance of relatability, good directing, and informativeness. The study emphasizes the need to approach maintaining existing readers and attracting new ones separately, and to manage readers effectively in the future.

• 천문학논총
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• 제38권3호
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• pp.99-110
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• 2023

In this study, complaints from visitors in the science museum satisfaction survey were categorized into four primary factors and ten sub-factors. This categorization aimed to provide recommendations for enhancing the Geochang Wolseong Space Creative Science Museum as an illustrative case study. Futhermore, the study examimed the relative importance of each factor by surveying 90 science museum visitors. The following results are obtained. Firstly, it was evident that the Geochang Wolseong Space Creative Science Museum requires urgent improvement. Certainly, in the primary factors, issues related to the utilization environment emerged as the most significant sources of dissatisfaction, while in the sub-factors, the adequacy of fees was identified as the most prominent concern. Secondly, through the result of the IPA (Importance-Performance Analysis) of the complaint factors, four primary issues were identified as top priorities for consideration: fare adequacy, lack of convenient facilities, in sufficient publicity, and a lack of distinctiveness compared to similar facilities. Lastly, when analyzing the relationship between complaints and overall satisfaction, factors related to human service, environment, and educational content had negative effects. In contrast, factors associated with science museum operation exhibited a different trend, suggestinga structural impact relationship with the overall impact of complaints.

• 대한두경부종양학회지
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• 제39권2호
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• pp.7-11
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• 2023

Adult fibrosarcoma is a malignant tumor comprising of spindle-shaped fibroblasts with variable collagen production. Due to their aggressive nature and high probability of local tumor recurrence, these tumors require accurate diagnosis and resection according to guidelines. A 57-year-old male presented to the clinic with a complaint of a palpable growing mass in the left scapular area. Examination of the back revealed a 6 cm protruding tumor with a nodular surface. We performed a wide excision, including the infraspinatus fascia layer and subsequent reconstruction using a parascapular island flap. Histopathological analysis demonstrated the typical microscopic features of adult fibrosarcoma. At the 3-year follow-up, there was no evidence of local recurrence and the resection margin was completely clear of tumor.

• 대한지역사회영양학회지
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• 제10권6호
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• pp.943-951
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• 2005

The purposes of this study were to analyze the gap between foodservice personnel and inpatients, to urge foodservice providers to reconsider by identifying the problems in service delivery for customer satisfaction, and to deduce the priority for foodservice quality improvement. The results of this study can be summarized as follows : the average perception score of personnel (4.32 out of 5) was higher than that of customers (3.90). In particular, the customers' perceptions of 17 attributes, which included 'removal service of tray by foodservice personnel', 'nutrition and health-related information service', 'handling inpatient's complaint ASAP', 'delicious meals' and 'salty enough meals' and so on, was significantly lower than personnel's. Both service providers and customers perceived that 'personnel attitude' was the highest and 'meal quality' was the lowest among the 4 factors, but there was significant difference on 'meal quality'(p < .001), 'customer reception' (p < .001) and 'personnel attitude' (p < .05) between the two groups. As a results of quadrant analysis, 'removal service of tray by foodservice personnel', 'handling inpatient's complaints ASAP' and 'meal service according to doctor's orders were categorized into Quadrant A with meaning of high personnel's perceptions and low customers'. Therefore service providers have to perceive the gap between the two viewpoints and grant priority to these attributes in improving foodservice qualify. (Korean J Community Nutrition 10(6) $943\∼951$, 2005)