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( Subeen Lee ),( Juyeon Kang ),( Hyun Jung Lee ),( Yoon Hee Lee ),( Gun Oh Chong ),( Dae Gy Hong ),( Yoon Soon Lee ) 대한산부인과학회 2020 대한산부인과학회 학술대회 Vol.106 No.-
Objective: We evaluated the clinical significance of clinical factors and hematological parameters as prognostic factors in patients with locally advanced cervical cancer (LACC) who received definitive concurrent chemoradiotherapy (CCRT). Methods: We retrospectively analyzed 125 patients with LACC (FIGO stage IIB to IIIB) who received definitive CCRT. Clinical factors and hematological parameters, including neutrophil-to-lymphocyte ratio (NLR) were assessed pre- and post-CCRT. Neutrophil-to-lymphocyte ratio (NLR) was calculated by dividing absolute neutrophil counts by absolute lymphocyte counts. Tumor size was determined by measuring the largest tumor diameter in MRI or CT images. Univariate and multivariate analysis for disease-free survival (DFS) and overall survival (OS) were performed using clinical factors and hematological parameters. Results: Disease recurred in 46 (36.8%) patients, and 24 patients (19.2%) died. On multivariate analysis, tumor size, paraaortic lymph node metastasis, post-treatment NLR, NLR (pre-treatment NLR/post-treatment NLR) and PLR (platelet-to-lymphocyte ratio) (pretreatment PLR /posttreatment PLR) were significant prognostic factors for DFS. Among them, only post-treatment NLR and tumor size were a significant prognostic factor for OS (p<0.001). Combination of tumor size and post-treatment NLR were significant prognostic factor for DFS and OS. Patients with large tumor size and elevated post-treatment elevated NLR were shown poor prognosis. Conclusion: Combination of tumor size and post-treatment NLR may serve as a prognostic indicator in patients with LACC who received definitive CCRT.
이주희(Lee, JuHee),이태화(Lee, Taewha),이현경(Lee, Hyunkyeong),김상희(Kim, Sanghee),배주연(Bae, Juyeon),한지희(Han, Jeehee),이경은(Lee, Kyongeun) 한국간호교육학회 2015 한국간호교육학회지 Vol.21 No.4
Purpose: The purpose of this study was to develop an integrated nursing practicum education matrix based on the learning outcomes of each stage. Methods: In this Delphi technique study, 10 experts, consisting of six professors and four nurses, participated in the development of the matrix. The first step was an in-depth review for the composition of the questionnaire and the second step was the Delphi technique. The Delphi survey was conducted two times in order to complete the components of the matrix. The survey data was analyzed for statistical averages and standard deviations to decide the order of priority. Results: According to each stage (i.e. fundamental stage, competent stage, and proficient stage), the matrix was composed of education contents, methods, evaluation methods, and curriculum outcomes. Conclusion: The integrated nursing practicum education matrix of Y University was completed. The developed matrix will result in a reduction in the gap between nursing education and clinical practice and an improvement in nursing competency.
유비쿼터스 환경에서 다양한 개인화 서비스에 적용하기 위한 사용자 모델링의 일반화 방법론
이주연(Juyeon Lee),이성진(Seongjin Lee),이수원(Soowon Lee) 한국정보과학회 2006 한국정보과학회 학술발표논문집 Vol.33 No.2B
최근 연구가 활발히 진행되고 있는 ‘유비쿼터스’라는 새로운 패러다임은 기존보다 더욱 많은 컴퓨팅 자원을 이용하여 사용자의 편의를 지원하는 것을 그 목표로 하고 있다. 유비쿼터스 컴퓨팅 환경에서 사용자를 지원하기 위한 대표적인 예로 개인화 서비스를 들 수 있으며, 개인화 서비스는 사용자에 대한 모델링이 필수 요소가 된다. 개개인의 행동 패턴 혹은 선호도 정보로 구성된 사용자 모델은 다양한 개인화 서비스의 원활한 지원을 위해 지금까지 유용하게 사용되고 있지만, 기존의 사용자 모델은 각 서비스가 개발될 때, 그 서비스에 적합한 형태로 매번 설계되어야 하는 문제점을 지닌다. 본 논문에서는 이러한 문제점을 해결하고자, 사용자 모델을 구성하는 정보들을 분석하여, 모델 설계에 필요한 일반화된 입력 패턴들을 도출하고, 도출된 패턴들을 바탕으로 더욱 쉽고 빠르게 사용자 모델을 생성할 수 있는 방법을 제안한다.
Lee, Juyeon,Hong, Sehoon 한국간호과학회 2021 한국간호과학회 학술대회 Vol.2021 No.10
Aim(s): This study aimed to investigate the effects of premenstrual syndrome, stress, and social support on health related quality of life in college women. Method(s): This descriptive correlational study was conducted among 103 college women. The participants answered self-report questionnaires. The data were analyzed using the t-test, Pearson correlation coefficients, and hierarchical multiple regression in IBM SPSS version 23.0. Result(s): The mean scores for premenstrual syndrome, stress, social support, and health related quality of life were 2.99±0.58 (1~5), 5.48±1.94 (0~10), 4.18±0.62 (1~5) and 3.71±0.52 (1~5), respectively. There were negatively correlations between health related quality of life and premenstrual syndrome (r= -.37, p<.001), and stress (r= -.47, p<.001). Health related quality of life positively correlated with social support (r= .22, p=.025). The explanatory power of the model was 29.4%, and it was statistically significant (F=9.48, p<.001). Stress (β= -.37, p<.001) was the most powerful variable affecting health related quality of life, followed by premenstrual syndrome (β= -.25, p=.005). Conclusion(s): To improve health related quality of life among college women, it is necessary to decrease their stress and the symptoms of premenstrual syndrome. This study will provide fundamental information on programming and a policy proposal related to health related quality of life for college women.
A normalized compensation method for voltage nonlinearity of three‑level ANPC inverter
Juyeon Lee,June-Seok Lee 전력전자학회 2024 JOURNAL OF POWER ELECTRONICS Vol.24 No.8
This paper proposes a normalized compensation method for voltage nonlinearity of the three-level active neutral point clamped (3L ANPC) inverter. The operation of the 3L ANPC inverter includes the voltage nonlinearity caused by voltage errors, which are induced by the nonlinear components of switching devices and their operations. Since this voltage nonlinearity seriously distorts the phase current, it must be compensated to improve the quality of power conversion. For the 3L ANPC inverter, however, the voltage nonlinearity varies depending on the topology and modulation scheme, as well as the power factor of the system. Although many conventional methods have been proposed, these methods do not fully deal with the factors affecting the voltage nonlinearity. In this paper, a normalized compensation method for the voltage nonlinearity considering the characteristics of the 3L ANPC inverter and the power factor of the system is proposed. Two general topologies and modulation schemes of the 3L ANPC inverter are discussed in this paper, and the voltage nonlinearity is analyzed to derive the compensation components. By executing the compensation based on these analyses, the proposed method ensures its performance remains consistent across operating conditions, and is simply implemented. The effectiveness of the proposed method is verified by experimental results.
Identification of quantitative trait loci for fusarium wilt resistance in radish (Raphanus sativus)
Juyeon Jung,Jaehwang Ryu,Yeonok Choi,Young-Pyo Lee 한국육종학회 2015 한국육종학회 심포지엄 Vol.2015 No.07
Radish, Raphanus sativus(2n = 18), belonging to the brassicaceae family, is herbaceous plant with 1-2 years life cycle. It is cultivated worldwide for producing leafy and root vegetables. Although an economically important crop, the genetics of yield and quality traits, disease resistance are not well-studies. The major purpose of this project is development of molecular breeding technology in radish. In this project, quantitative trait loci (QTL) for Fusarium wilt resistance of radish were analyzed. To identify QTL, genetic linkage map of radish was constructed using F2 mapping population derived from a cross between two inbred lines, “DB01” (resistant) and “DB05” (susceptible). A total 319 markers have been mapped into nine linkage groups, covering 639.3cM with an average distance of 2cM between loci. QTL mapping detected 2 loci conferring Fusarium wilt resistance. Two QTLs were located on LG3 and LG7, respectively. The QTL of LG3, flanked by EAGGMCT6 and WALK500 marker, exhibited a LOD value ranging from 2.3 to 8.7, and the R2 (Phenotypic variations) ranging from 28 to 48% in four tests. This QTL was named qYR1. The QTL of LG7, flanked by EACCMCAC-202 and DCJ14-390 marker, exhibited a LOD value ranging from 6.2 to 10.6, and the R2 ranging from 42 to 55% in four tests. This QTL was named qYR2. The results of the QTL analysis may be useful in marker-assisted selection (MAS) of Fusarium wilt resistant radish cultivars.
Desmopressin responding female nephrogenic diabetes insipidus: a case report
Juyeon Lee,Hae Il Cheong,Jung Won Lee,Ki Soo Pai 대한소아신장학회 2022 Childhood kidney diseases Vol.26 No.2
Nephrogenic diabetes insipidus, decreased ability to concentrate urine, with production of large amounts of urine, is caused by the refractory response of renal tubules to the action of antidiuretic hormone. This rare disorder, known as X-linked nephrogenic diabetes insipidus, is caused by a mutation in the AVPR2 gene. Because it is hereditary, most patients are male. This report highlights a case of nephrogenic diabetes insipidus in a 3-year 5-month-old female; upon presentation to the hospital, her symptoms included frequent urination and consumption of a significant amount of water, which had begun 2 years ago. The results of blood tests showed increased levels of serum antidiuretic hormone, and sellar magnetic resonance imaging showed no abnormality. The results of the water restriction test and the desmopressin administration test confirmed the diagnosis of nephrogenic di-abetes insipidus showing a partial response to desmopressin. The results of genetic testing indicated the presence of an AVPR2 mutation, a heterozygous missense mutation (p.Val88Met), suggesting inheritance of X-linked nephrogenic diabetes insipidus. This report describes a significant case of symptomatic X-linked nephrogenic diabetes insipidus in a female patient who showed a partial response to desmopressin.