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손예진(Yejin Son),노안젤라송이(Angela Song-Ie Noh),김명주(Myuhng-Joo Kim),박지숙(Ji-sook Park),이웅재(Woong-Jae Lee) 한국정보과학회 2006 한국정보과학회 학술발표논문집 Vol.33 No.1
정보통신 및 무선 통신기기의 발달과 더불어 원격지에서 환자를 진단하고 치료하는 원격 진료 시스템에 관한 연구가 전 세계적으로 활발히 진행 중이다. 특히, 서로 다른 기관으로부터의 분산된 의료 정보 들 간의 통신을 위해서는 데이터를 통합시키는 것이 급선무다. 본 연구는 분산된 이질적인 의료 정보의 효과적인 관리를 위해 통합 메타데이터 카탈로그를 통한 검색 엔진을 설계하는데 중점을 두었다. 이를 통해 각 병원 데이터 형식의 일괄적인 변환 없이도 통합 검색 환경을 사용할 수 있으며, 향후 시스템 개발에 있어서도 확장성이 용이하다.
Kihong Son,Seunghyung Lee,Hyobin Lee,Yejin Lee,Dongwook Son,Seunghyeon Myeong,Minjoo Chang,Daehong Kim,Myung-Ae Chung 한국자기학회 2023 Journal of Magnetics Vol.28 No.4
This simulation study aims to differentiate between contrast media and calcification in blood vessel using the effective atomic number (EAN) extraction method in electromagnetic X-ray computed tomography (CT) imaging. Calibration was performed on six tissue-equivalent materials, three contrast medium, and one calcium solution. The Hounsfield unit (HU) values at 80 kV and 140 ㎸ with electromagnetic spectrum using dualenergy computed tomography (DECT) facilitated this calibration. EAN from the polynomial method was then compared with that from the Stoichiometric method. In 120 ㎸ vascular imaging, when the HU of calcium and iodine contrast media were alike, EAN provided a more pronounced contrast than HU. The iodine contrast agent’s enhancement in EAN was approximately 30.0 %, and in HU, it was 13.0 % relative to calcium. This indicates EAN’s potential to better differentiate contrast media from calcification in clinical contexts.
Comparative analysis of yeast cell viability at exponential and stationary growth phases
Yejin An,Nayoon Jo,Hyeji Kim,Dahye Nam,Woorim Son,Jinkyu Park 한국분석과학회 2022 분석과학 Vol.35 No.4
This paper describes a comparative analysis of yeast cell viability at exponential and stationary growth phases using multiple conventional techniques and statistical tools. Overall, cellular responses to various viability assays were asynchronous. Results of optical density measurement and direct cell counting were asynchronous both at exponential and stationary phases. Proliferative capacity measurement using SP-SDS indicated that cells at the end of the stationary phase were proliferative as much as exponentially growing cells. Metabolic activity assays using two different dyes concluded that the inside of cells at stationary phase is slightly less reducing compared to that of exponentially growing cells, implying that the metabolic activity imperceptibly declined as cells were aged. These results will be helpful to understand the details of yeast cell viability at exponential and stationary growth phases.
Yejin Ha,Kyeongmin Lee,Bomi Park,Mina Suh,Jae Kwan Jun,Kui Son Choi 한국역학회 2023 Epidemiology and Health Vol.45 No.-
OBJECTIVES: We aimed to identify and compare the characteristics and factors associated with parental intention to vaccinate daughters under 12 years old against human papillomavirus (HPV), examining data from 2016 and 2020. METHODS: Data were obtained from the Korean National Cancer Screening Survey conducted in 2016 and 2020. The present study included 3,510 parents with daughters under 12 years old. Changes in parental intention-to-vaccinate rates were calculated. To identify factors associated with parental intention to vaccinate their daughters, the chi-square test and logistic regression analysis were used. RESULTS: The percentage of respondents intending to vaccinate their daughters increased from 33.4% in 2016 to 58.9% in 2020, constituting a 25.5 percentage point (%p) increase. Since 2016, the proportion of men expressing positive intention towards HPV vaccination increased by 31.5%p, while that of women demonstrated a 20.9%p increase. Logistic regression analysis indicated that parents with a strong intention to vaccinate their daughters tended to be younger, more educated, and aware of the free vaccination program available, as well as to have a history of HPV vaccination and to have undergone cervical cancer screening within 2 years, compared to those who did not intend to vaccinate. Being a mother with a history of HPV vaccination was the strongest predictor of positive intention to vaccinate a daughter. CONCLUSIONS: The intention among parents to vaccinate daughters remains relatively low, although it is rising. To increase the HPV vaccination rate, strong recommendations and education should be provided to parents and the younger generation.