Dehydrogenative Polymerization of Hydrosilanes to Silicon Polymers

김명희,이준,모수용,김종현,우희권,Kim, Myoung-Hee,Lee, Jun,Mo, Soo-Yong,Kim, Jong-Hyun,Woo, Hee-Gweon The Basic Science Institute Chosun University 2010 조선자연과학논문집 Vol.3 No.2

Hydrosilanes possessing reactive Si-H bond are used in synthesizing various types of polysilanes by dehydrocoupling under the influence of various organometallic promoters. Catalytic Si-Si/Si-O coupling of hydrosilanes with hydrosilanes, alcohols, and lactones to silicon-based polymers are described in this article as selective examples of our recent research developments. These silicon-containing polymers can be used as a precursor to prepare useful functional materials for fabricating electronic devices.

Dehydrocoupling of Bis(silyl)alkylbenzenes to Network Polysilanes, Catalyzed by Group 4 Metallocene Combination

김명희,이준,무수용,김종현,고영춘,우희권,Kim, Myoung-Hee,Lee, Jun,Moo, Soo-Yong,Kim, Jong-Hyun,Ko, Young Chun,Woo, Hee-Gweon The Basic Science Institute Chosun University 2010 조선자연과학논문집 Vol.3 No.1

Bis(silyl)alkylbenzenes such as bis(1-sila-sec-butyl)benzene (1) and 2-phenyl-1,3-disilapropane (2) were synthesized in high yields by the reduction of the corresponding chlorosilanes with $LiAlH_4$ in diethyl ether. The dehydrocoupling of 1 and 2 was performed using group IV metallocene complexes generated in situ from $Cp_2MCl_2$/Red-Al and $Cp_2MCl_2$/n-BuLi (M = Ti, Hf), producing two phases of polymers. The TGA residue yields of the insoluble polymers were in the range of 64-74%. The molecular weights of the soluble polymers produced ranged from 700 to 5000 ($M_w$ vs polystyrene using GPC) and from 500 to 900 ($M_w$ vs polystyrene using GPC). The dehydropolymerization of 1 and 2 seemed to initially produce a low-molecular-weight polymer, which then underwent an extensive cross-linking reaction of backbone Si-H bonds, leading to an insoluble network polymer.

비실험자료를 이용한 연구에서 인과적 추론의 강화: 성향점수와 도구변수 방법의 적용

김명희,도영경,Kim, Myoung-Hee,Do, Young-Kyung 대한예방의학회 2007 예방의학회지 Vol.40 No.6

Objectives : This study attempts to show how studies using non-experimental data can strengthen causal inferences by applying propensity score and instrumental variable methods based on the counterfactual framework. For illustrative purposes, we examine the effect of having private health insurance on the probability of experiencing at least one hospital admission in the previous year. Methods : Using data from the 4th wave of the Korea Labor and Income Panel Study, we compared the results obtained using propensity score and instrumental variable methods with those from conventional logistic and linear regression models, respectively. Results : While conventional multiple regression analyses fail to identify the effect, the results estimated using propensity score and instrumental variable methods suggest that having private health insurance has positive and statistically significant effects on hospital admission. Conclusions : This study demonstrates that propensity score and instrumental variable methods provide potentially useful alternatives to conventional regression approaches in making causal inferences using non-experimental data.

해상운임에 영향을 미치는 주요 요인에 관한 연구

김명희,Kim, Myoung-Hee 한국항해항만학회 2022 한국항해항만학회지 Vol.46 No.4

In this study, a multivariate time series analysis was conducted to identify various variables that impact ocean freight rates in addition to supply and demand factors. First, we used the ClarkSea Index, Clarksons Average Bulker Earnings, and Clarksons Average Tanker Earnings provided by the Shipping Intelligence as substitute variables for the dependent variable, ocean freight. The following ndependent variables were selected: World Seaborne Trade, World Fleet, Brent Crude Oil Price, World GDP Growth Rate, Industrial Production (IP OECD) Growth Rate, Interest Rate (US$ LIBOR 6 Months), and Inflation (CP I OECD) through previous studies. The time series data comprise annual data (1992-2020), and a regression analysis was conducted. Results of the regression analysis show that the World Seaborne Trade and Brent Crude Oil P rice impacted the ClarkSea Index. Only the World Seaborne Dry Bulk Trade impacted the Clarksons Average Bulker Earnings, World Seaborne Oil Trade, Brent Crude Oil Price, IP, and CP I on the Clarksons Average Tanker Earnings.

Capture-recapture 방법을 이용한 1998년 제주도 볼거리 유행시 보고 자료의 완전성 평가

김명희,박진경,기모란,허영주,김정순,최보율,Kim, Myoung-Hee,Park, Jin-Kyoung,Ki, Mo-Ran,Hur, Young-Joo,Kim, Joung-Soon,Choi, Bo-Youl 대한예방의학회 2000 Journal of Preventive Medicine and Public Health Vol.33 No.3

Objectives : To estimate mumps incidence during the study period and to evaluate the completeness of case reporting. Methods : Capture-recapture methods, originally developed for counting wildlife animals, were used. The data sources were 1) the National Notifiable Communicable Disease Reporting System (NNCDRS; 848 cases), 2) the School Health Reporting System, temporarily administered by the Division of Education (SHRS; 1,026 cases), and 3) a survey of students (785 cases). We estimated the number of unobserved mumps cases by matching the three data sources and fitting loglinear models to the data. We then determined the estimated total number of mumps cases by adding this to the number of observed cases. Completeness was defined as the proportion of observed cases from each source to the total of estimated cases. Results : The total number of observed cases was 1,844 and the total number of estimated cases was 1,935 (95%, CI: $1,878\sim2,070$). The overall completeness was 43.8% of the NNCDRS, 53.0% of the SHRS, and 40.6% of the survey. However, completeness varied by area and age. Conclusion : Although the completeness of NNCDRS data appeared higher than in the past, it is difficult to generalize this result In Korea, it is possible to estimate the size of health hazards relatively cheaply and quickly, by applying capture-recapture methods to various data using a multiple data collection system.

1998년 제주도에서 발생한 볼거리 유행조사

김명희,허영주,최보율,기모란,Kim, Myoung-Hee,Hu, Young-Joo,Choi, Bo-Youl,Ki, Mo-Ran 대한예방의학회 2001 Journal of Preventive Medicine and Public Health Vol.34 No.1

Objectives : To describe the characteristics of a mumps epidemic in Cheju-do, 1998 and to identify the risk factors associated with mumps infection. Methods : To estimate attack rate, previously collected data from the Nationally Notifiable Communicable Disease Reporting System and School Health Reporting System, temporarily administered by Division of Education. as well as additional surveillance data were used. In order to identify the clinical characteristics and risk factors associated with mumps, we conducted a questionnaire survey in 17 schools (9 elementary, 4 middle, and 4 high schools) among a population that included healthy students. Results : From March 3 to August 31, 2,195 cases of mumps were identified, and patients under 20 years of age accounted for 2,162 cases (attack rate 13.2, 95% CI 12.6-13.7/1,000). The attack rate for the population under 20 years of age was the highest in Nam county (44.7/1,000), nod in the 7-12 years old sub-group(>20.0/1,000). There was no sexual difference. 80.5% and 59.7% of patients presented periauricular and submandibular swelling respectively. Aseptic meningitis was a complication in 2.9% of cases, orchitis in 1.3%, epididymitis in 0.9% and oophoritis in 0.6% respectively. The overall MMR vaccination rate was 59.1% and it decreased in accordance with increasing age. In students aged 10 years old or below, household contact and MMR vaccination status was significantly associated with infection, and only among students with household contact, the risk of one dose MMR(OR=10.22, 95% CI 2.92-35.78) and non-vaccination (OR=11.62, 95% CI 1.96-68.96) was significantly greater when. compared with that of two dose vaccination. Among students aged 11 years old or above, household contact history was significantly associated and MMR vaccination status was not associated. Conclusions : Low vaccination rate and vaccine failure were thought to predispose the population for this large outbreak. To prevent sustained mumps outbreaks, a second MMR vaccination should be encouraged and catch up vaccinations should be given to elderly children who remain susceptible.

부모가 바라보는 유아 포트폴리오 평가와 평가참여

김명희(Kim Myoung Hee),심윤희(Sim Yun Hee) 한국유아교육·보육복지학회 2012 유아교육·보육복지연구 Vol.16 No.1

본 연구는 유아교육기관에서 부모가 인식하는 유아 평가의 의미와 그들이 평가에 참여함에 어떤 의미를 부여하고 그들이 직접 평가과정에 참여하는 양상을 알아보고자 한 것이다. 이를 위해 본 연구에서는 사랑어린이집 교사 2명과 어머니 6명을 관찰, 심층 면담하는 사례연구를 실시하였다. 연구결과 첫째, 부모가 지각하는 포트폴리오 평가는 객관적 성장발달자료, 근거 타당한 유아평가에 대한 새로운 발견, 유아 발달수준에 근거한 측정도구로 의미 짓고 있다. 둘째, 유아 평가참여에 대한 부모의 의미 부여는 아이발달에 대한 조화로움을 위해, 아이 성찰 그리고 부모의 자기반성으로, 가정연계학습의 강화로, 부모바람의 통로로, 심리적 부담감으로의 두 가지 엇갈린 반응으로 의미 지었다. 셋째, 포트폴리오 평가과정을 통해 나타나는 부모들의 참여양상은 부모의 개입정도에 따른 가정연계활동의 적극성과 부모의 프로젝트 흥미, 마음가짐에 따라 관련성이 있었고 유아의 반성적 사고에 따른 학습 및 프로젝트에서 새롭게 알게 된 유아의 흥미여부 그리고 유아의 발달상황에 대한 확인에 따라 주도성이 달라짐을 알 수 있었다. 또한 부모는 교사평가의 객관적 준거에 대한 일치와 다름에 근거하여 부모의 바램을 전달하는 교사와의 소통의 기회로 평가에 참여함을 볼 수 있었다. 따라서 의미 있는 포트폴리오 평가를 위해서 교사는 가족참여 방법을 변화시켜 부모가 유아의 평가와 교수를 이해하고, 능동적으로 참여하고, 지원할 수 있도록 해야 하며 이로써 교사와 부모 모두 유아의 흥미와 관심에 관한 평가를 진행하는 동반자로 자리매김해야한다. The purpose of this study is for the meaning of children’s assessment about the recognition of parents and the meaning of aspect from the participation of parents have got three major parts. In order to conduct this study participants were gathered as two teachers and six mothers who have been observed and interviewed in-depth from sarang-daycare center. Firstly, the meaning of portfolio from the participation of parents collected the data of objective and new development discovery about the growing up of early children and to compare by using the measuring instrument according to development of early children. Secondly, the reason for this study are to find the harmony of early children’s development of the reflection parents the learning of the life and the parental hope and the burden of mind. Thirdly parental attitude have shown many different type aspects as the following below.; We have known the positive of coordinate activity from between daycare center and home. Consequently, teachers will change the method of family’s participation and modify, parents have to understand that how to teach for early children for portfolio assessment. Above all, parents have to participate and support actively. And teachers and parents should have concerned about being a companion for early children’s interest and concern throughout portfolio assessment.

고전의 변주, 프레슬러의 청소년 소설 『나탄과 그의 아이들』

김명희 ( Kim Myoung-hee ) 한국뷔히너학회 2022 뷔히너와 현대문학 Vol.- No.59

『나탄과 그의 아이들』은 레싱의 『현자 나탄』을 프레슬러의 관점에서 집필한 청소년소설로, 이 두 작품을 비교하면 프레슬러 작품의 새로운 점과 작가의 의도를 파악할 수 있다. 프레슬러는 현대의 젊은 세대들이 접근하기 쉽게 계몽주의적 관용 정신이 담긴 레싱의 드라마를 소설 형식으로 썼다. 두 작품의 공통점들은 작가 프레슬러의 입장에서 이야기의 본질에 속하는 것이며, 두 작품 간의 차이점은 작가가 현대의 청소년 독자를 위해 새롭게 강조한 내용이라고 할 수 있다. 프레슬러는 레싱의 『현자 나탄』의 줄거리와 인물, 기본 모티프의 대부분을 따르나, 내용과 형식을 현대 상황에 맞게 개작하였다. 두 작품의 차이는 작품의 결말, 십자군 전쟁기의 분위기와 인물들에 대한 생생한 묘사 그리고 정체성 찾기 등 청소년들을 위한 주제의 확장을 들 수 있다. 한편 다중시점으로 된 청소년 소설로의 변화, 다양한 문체와 언어 구사, 일상어 사용, 다른 텍스트들의 수많은 인용 등 형식 면에서 차이를 보인다. 종교 간의 갈등과 반목으로 폭력적인 상황에 처해 있는 현재에도 종교적 관용과 공존은 여전히 중요하고 가치 있는 정신이라는 점에서, 프레슬러의 『나탄과 그의 아이들』은 인류의 소중한 정신을 우리 시대에 맞게 개작한 고전의 성공적인 재탄생이라고 할 수 있겠다. In dieser Arbeit wird versucht, Mirjam Presslers Jugendroman Nathan und seine Kinder und Lessings Drama Nathan der Weise als Vorlage zu vergleichen. Die Grundzüge der Handlung und auch die meisten Personen sowie die Ringparabel aus Lessings Drama behält die Autorin bei. Aber es gibt auch einige sehr markante Unterschiede. Der entscheidende Unterschied in Bezug auf die Handlung ist deren offenes ambivalentes Ende; Nathans Ermordung und die Hoffnung auf Besserung seitens der Angehörigen. Zweitens kommen anhand der Figurenkonstellation einige neue Figuren - Geschem, Abu Hassan und Elijahu - im Roman hinzu und erfahren andere im Hinblick auf ihren Charakter eine Umdeutung. Drittens werden die Themen ‘Kreuzzüge’ und ‘Identitätserfindung’ neben dem Thema von Konflikt und Koexistenz der drei abrahamitischen Religionen stärker ausgestaltet. Nathans Geschichte im Roman von Pressler wird von vielen Menschen ganz verschiedener Herkunft erzählt, so entsteht ein breites, sehr lebendiges Panorama der Zeit der Kreuzzüge. Durch zahlreiche sprachliche Bilder - hauptsächlich Vergleich, Metaphern und Personifikationen - werden Figuren und Handlung lebendig gemacht. An der Unterschieden zwischen dem Bezugstext und Presslers Roman wird deutlich, welche Akzente die Autorin besonders für jugendliche Leserschaft neu gesetzt hat. Die Gemeinsamkeiten dagegen zeigen stärker, was erhalten bleiben sollte und somit offenbar in den Augen Presslers zur Substanz der Geschichte dazugehört.

독일청소년문학에 나타난 폭력과 소외문제 -「슈바르처, 볼프, 스킨헤드 Schwarzer, Wolf, Skin」와「여기는 시카고가 아니야 Nicht Chicago. Nicht hier」를 중심으로

김명희 ( Myoung Hee Kim ) 한국독일언어문학회(구 독일언어문학연구회) 2006 독일언어문학 Vol.0 No.32

독일청소년문학의 수업모델 구상 - 미리암 프레슬러의 『나탄과 그의 아이들』을 중심으로

김명희 ( Kim Myoung-hee ) 한국독어독문학교육학회 2022 獨語敎育 Vol.85 No.85

In dieser Arbeit wird versucht, ein exemplarisches Unterrichtsmodell am Beispiel von Mirjam Presslers Jugendroman Nathan und seine Kinder, das die Vorlage von Lessings Nathan der Weise adaptiert, vorzuschlagen. Die theoretischen Grundlagen dieses Unterrichtsmodells sind die Konstruktivistische Literaturwissenschaft und die Literarische Kommunikationstheorie. In diesem Unterrichtsmodell geht es um die Erfahrungen der Kommunikation von Lernenden mit dem Text und der Kommunikation innerhalb der Lerngruppe. Die Zielsetzung des in der Arbeit entwickelten Unterrichtsmodells liegt in der Stärkung der Literaturkompetenz und der Fähigkeit des kritischen Denkens sowie in der Erweiterung des Literaturtexts zur Lebenswelt von Lernern. Dieses Unterrichtsmodell wird in drei Phasen - Lesen, Diskutieren, Schreiben - unterteilt. Beim Lesen versucht der Lerner die selbst gestellten Fragen zu beantworten und außerdem die selbst gestellten Motive und Themen des Literaturtexts ‘Nathan und seine Kinder’ zu interpretieren: individuelles Lesen und persönliche Bedeutungskonstruktion. Durch die Gruppendiskussionen erstellt der Lerner anschließend eine soziale Bedeutungskonstruktion. Beim Schreiben versucht der Lerner den Literaturtext mit seiner Lebenswelt zu verbinden. In dieser Arbeit werden die Inhalte und Methoden des Unterrichts erstellt, die in den einzelnen drei Phasen behandelt werden können.