Effect of Organic Compounds With Different Functional Groups(acetaldehyde, acetic acid, acetone, and acetonitrile) in Various Korean Weeds on Human Electroencephalographic Activity

Jieun Song,Minju Kim,Songmun Kim,Kandhasamy Sowndhararajan 한국잡초학회 2018 한국잡초학회 별책(학술대회 초록집) Vol.38 No.1

Variable Schwa Deletion in English: A Corpus Study

Jieun Song 한국음운론학회 2013 음성·음운·형태론 연구 Vol.19 No.1

This study investigates schwa deletion in American English using the Buckeye Corpus. To determine the contributions of grammatical (e.g., sonority of onset clusters) and non-grammatical (e.g., lexical frequency) factors to schwa deletion, the distribution of schwa-deleted word forms is examined in terms of phonological, morphological, and lexical environments. As expected, schwa deletion occurred more frequently in post-stressed environments than in pre-stressed environments. Of all the factors, the most significant factor affecting deletion rates in the post-stressed environment was the sonority profile of onset clusters that arise after deletion: deletion rates are higher when the prospective consonant cluster forms a sonority rise (large rise and small rise) than when it forms a sonority fall. The results show that the Sonority Sequencing Principle alone cannot explain the observed patterns of variable schwa deletion. This paper suggests that schwa deletion rates are modulated by English speakers’ knowledge of the universal sonority preferences. The nature of this knowledge regardine sonority preferences will be further discussed. (Seoul National University)

Analytic Methods for 1,4-dioxane in cosmetics using HS-GC-MS

Jieun Hong,Jieun Sim,Dojung Kim,Young Me Song 한국분석과학회 2023 학술대회논문집 Vol.2023 No.11

Raman Spectroscopy Study of Annealing-Induced Effects on Graphene Prepared by Micromechanical Exfoliation

Jieun Song,Taeg Yeoung Ko,Sunmin Ryu 대한화학회 2010 Bulletin of the Korean Chemical Society Vol.31 No.9

Serial Changes of CT Findings in Patients with Chronic Hypersensitivity Pneumonitis

( Jieun Kang ),( Jooae Choe ),( Eun Jin Chae ),( Yeon Joo Kim ),( Kyung-hyun Do ),( Joon Seon Song ),( Jin Woo Song ) 대한결핵 및 호흡기학회 2020 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.128 No.-

Background Only few studies have evaluated the serial changes in chest computed tomography (CT) in patients with chronic hypersensitivity pneumonitis (cHP) and no analysis was presented regarding fibrotic progression and development of acute exacerbation (AE). Methods This retrospective study included patients with cHP with follow-up CT. Baseline and serial follow-up CT were evaluated semi-quantitatively. Fibrotic progression was defined as increase in extent of interstitial fibrosis including reticulation, honeycombing, and/or traction bronchiectasis on CT. Fibrosis score was defined as the sum of the area with reticulation and honeycombing. The modified CT pattern of Fleischner Society idiopathic pulmonary fibrosis diagnostic guidelines was evaluated. Fibrotic progression-free survival was analyzed using a Kaplan-Meier survival analysis. Risk factors for fibrotic progression and AE were determined using Cox proportional hazards regression. Results Among 101 patients diagnosed with cHP based on histopathologic findings, 91 had follow-up CT and were included in this study. The mean age was 59.1 years and 61.5% were women. The median follow-up duration was 4.9 years. Seventy-nine patients (86.8%) showed fibrotic progression with persistent areas of mosaic attenuation, finally replaced by fibrosis, and 22 (22.0%) developed AE. Fibrotic progression-free survival was significantly poorer in patients with fibrosis score ≥10% (Figure 1a) or CT pattern of usual interstitial pneumonia (UIP) or probable UIP (Figure 1b). Baseline fibrosis score and UIP or probable UIP pattern were independent risk factors for predicting fibrotic progression (hazard ratio [HR]=1.05, 95% confidence interval [CI]=1.02-1.09, p<0.001 for fibrosis score; HR=2.50, CI=1.50-4.16, p<0.001 for CT pattern) and AE (HR=1.07, CI=1.01-1.13, p=0.019 for fibrosis score; HR=5.47, CI=1.23-24.45, p=0.026 for CT pattern) after adjusting clinical covariables. Conclusions Fibrotic progression and AE were identified in 86.8% and 22.0% of patients with cHP. Fibrosis score and UIP or probable UIP pattern on baseline chest CT may predict fibrotic progression and AE.

Russia Orthodox Church’s church service

SONG JiEun 동북아시아문화학회 2018 동북아시아문화학회 국제학술대회 발표자료집 Vol.2018 No.07

Covalent Immobilization of Diaphorase in Viologen Polymer Network for Highly Sensitive Detection of NAD⁺ and NADH

Song, Jieun,Hong, Zhenyu,Koh, Ahyeon,Shin, Woonsup The Korean Electrochemical Society 2014 Journal of electrochemical science and technology Vol.5 No.1

Here we report a highly sensitive and stable detection of $NAD^+$ and NADH by the electrode on which diaphorase (DI) is covalently immobilized in viologen polymer network. The network is prepared by the covalent formation of the structure by mixing propylamine viologen (PAV), poly(ethylene glycol)(400) diglycidyl ether (PEGDGE), an diaphorase (DI). The PAV/PEGDGE/DI modified electrode has the sensitivity of $0.02nA{\cdot}{\mu}M$ and the detection limit of $3{\mu}M$ with a response time of 2 s ($t_{90%}$) for NADH sensing.

Blue Fantasy

JiEun SONG 한국색채학회 2014 International Invitation Exhibition of Color Works Vol.2014 No.-

성인자녀와의 관계가 부모의 정신건강에 미치는 영향

송지은(Jieun Song),Nadine F. Marks 한국노년학회 2006 한국노년학 Vol.26 No.3

다수의 선행연구들이 사회적 관계와 정신건강의 밀접한 관련성을 입증해 왔음에도 불구하고, 성인자녀와의 관계가 부모의 정신건강에 미치는 영향에 관한 미국 내 연구는 미흡한 실정이다. 본 연구는 성인자녀와의 관계의 다양한 측면이 부모의 정신건강에 미치는 영향 및 이에 부모의 은퇴여부가 미치는 중재효과를 살펴봄으로써, 성인자녀와의 관계 특성이 미국 노인의 정신건강에 미치는 영향을 체계적으로 검증하고자 하였다. 이를 위해 미국의 대표성 있는 종단자료인 National Survey of Families and Households (T1: 1987-1988; T2: 1992-1993)의 응답자중 50세 이상이며, 자녀가 모두 성인기에 있는 1,257명의 부모들의 자료를 분석하였다. 회귀분석 결과, T1 시점에서 성인자녀와의 전반적 관계를 낮게 평가한 부모들은 이후 우울감의 증가, 행복감의 감소, 낮은 심리적 복지감을 경험하는 것으로 나타났다. 성인자녀와의 빈번한 대화는 부모의 낮은 심리적 복지감과 관련되었으며, 성인자녀의 경제적 어려움은 부모의 행복감을 저하시키는 것으로 나타났다. 한편, T1과 T2 사이에 은퇴 전이를 경험한 부모들은 근접 거리에 거주하는 성인자녀가 있는 경우 우울감이 낮아지는 것으로 나타났다. 성인자녀와의 동거 경험은 부모의 우울감의 증가 및 낮은 심리적 복지감과 관련되었다. 반면, T1과 T2에 걸친 기간동안 지속적으로 은퇴 상태였던 부모들은 성인자녀와의 동거 경험이 우울감의 감소를 가져오는 것으로 나타났다. 이러한 일련의 결과들은 부모-성인자녀 관계의 다양한 측면들이 미국 노인들의 정신건강을 예측하는 중요한 요인임을 입증하는 바이며, 일부 유의하게 나타난 은퇴여부의 중재효과는 부모-성인자녀 관계의 특정한 측면들이 취업상태인 부모들에 비해 은퇴한 부모들의 정신건강에 더욱 유의한 영향을 미칠 수 있음을 암시한다. This study aimed to examine the associations between parent-adult child relationships and mental health among parents, with moderating effects of retirement status on these associations. OLS regression models were estimated using data from 1,257 parents in National Survey of Families and Households (T1: 1987-88; T2: 1992-93). Results indicated that poor relationship with an adult child was associated with a greater increase in depression, a greater decrease in happiness, and lower levels of psychological wellness over time. Communication was associated with lower levels of psychological wellness of parents. Economic stress of adult children was linked to a greater decrease in happiness of parents. Proximity was associated with lower levels of depression of newly retired parents compared to continuously working parents. Gaining coresident adult children between T1 and T2 was associated with a greater increase in depression of parents. Having coresident adult children exit the household between T1 and T2 was linked to lower levels of psychological wellness of parents; however, it was also associated with somewhat decrease in depression among continuously retired parents compared to continuously working parents. Findings suggest parent-adult child relationships are associated with mental health of older parents over time, sometimes contingent on their retirement status.

중학생의 영어 자기효능감과 수업참여도, 그리고 학습자가 인식한 교사의 수업방법이 영어 학업성취에 미치는 영향에 관한 분석

송지은(Song, Jieun),박매란(Park, Mae-Ran) 학습자중심교과교육학회 2020 학습자중심교과교육연구 Vol.20 No.15

본 연구는 중학생의 영어 자기효능감, 수업참여도, 그리고 학습자가 인식한 교사의 수업방법이 영어 학업성취에 미치는 영향을 알아보고자 하였다. 연구대상은 부산 소재 중학교 1학년 남녀 학생 140명이었으며, 7개월간 주 3회씩 영어 수업에 참여한 후 설문지를 통해 영어 교과 학업적 자기효능감, 영어 수업참여도, 그리고 교사 중심 수업 및 학습자 중심 수업 인식 정도를 조사하였다. 영어 학업성취도 시험을 통해 앞서 조사한 변수들이 영어 학업성취에 어떠한 영향을 미치는지를 알아보았고 주요 연구 결과는 다음과 같다. 첫째, 영어 교과 학업적 자기효능감이 영어 학업성취에 정적인 영향을 미치는 것으로 나타났고, 학업성취 수준에 따라 집단을 나누어 살펴본 결과 성취도가 낮은 집단에서 자기효능감이 높을수록 학업성취가 높은 것으로 드러났다. 둘째, 학업성취 점수가 낮은 집단에서 영어 수업참여도 중 수업 예·복습 여부가 학업성취와 통계적으로 유의하였고, 중간 이상의 성취도 집단에서는 수업참여도가 학업성취에 미치는 영향이 유의하지 않았다. 셋째, 학습자가 인식한 교사 중심 수업방법 또는 학습자 중심 수업방법 실시 여부는 학업성취와 유의미한 관계를 보여주지 못하였다. 이러한 연구결과는 영어 학업성취가 낮은 학생들을 가르치는 것과 관련하여 교육적 시사점을 제공한다. The purpose of this study is to investigate the effects of self-efficacy, class engagement, and teaching methods on English academic achievement. The subjects were 140 middle school students from Busan. The students were asked about their self-efficacy, class engagement, and how they perceive their teacher’s teaching methods. The findings from this research are as follows. First, the students’ academic self-efficacy in English played a significant role in their English academic achievement and the effect was greater for students with low academic achievement. Second, the low-achieving students’ lesson preview and review had a positive influence on their English academic achievement, while their lesson preview and review were not proved statistically significant for higher-level students. Lastly, the teaching methods perceived by the students did not show any significant effect on their academic achievement. The findings from the current research will shed light on teaching English to students with low achievement.