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Lee, Hyojae,Lee, Yeosan,Cho, Seung Hwan American Chemical Society 2019 ORGANIC LETTERS Vol.21 No.15
<P>We describe a palladium-catalyzed chemoselective Negishi cross-coupling of a bis[(pinacolato)boryl]methylzinc halide with aryl (pseudo)halides. This reaction affords an array of benzylic 1,1-diboronate esters, which can serve as useful synthetic handles for further transformations. The developed coupling reaction is compatible with various functional groups and can be easily scaled up. The coupling of bis[(pinacolato)boryl]methylzinc halides with pharmaceuticals and the subsequent late-stage manipulations demonstrate the power of the developed protocol.</P> [FIG OMISSION]</BR>
협력학습이 한국어 자기효능감과 수업 몰입에 미치는 영향
이효재 ( Lee Hyojae ),조윤경 ( Cho Yunkyoung ) 이중언어학회 2019 이중언어학 Vol.74 No.-
The purpose of the study was to explore the effects of collaboration activities on Korean learner’s Self-efficacy and Student flow. The participants of the study were 42 students from Korean language class who belonged to two different groups : One group is with collaboration activity and the other group is with general teacher-centered class. Data analysis was completed using descriptive statistic analysis, correlation analysis, and hierarchical regression analysis with SPSS 21.0. In addition, in order to examine the mediating effects of Self-efficacy and flow Major findings from the study were as follows: First, In Self-efficacy part a collaboration activities class proved to be more effective than teacher-centered class. Self-efficacy for group work, refers to the learner’s capability to successfully perform group tasks. It is known as the variable that participation in the group learning process. Second, in Student flow part, a collaboration activities class proved to be more effective than teacher-centered class, but the average is meaningless. Flow is a sensation that people experience when they work with complete focus. Flow has been validated in numerous studies as a critical component of learning. Third, self-efficacy also had significant direct influence on student flow as well as significant indirect effect via collaboration class. The degree of effect of self-efficacy on student flow was higher than the effect of teacher-centered group. (Kosin University, Busan University Of Foreign Studies)
일하는 그리스도인들의 일상을 담아내는 교회교육 프로그램 제안
이효재(Hyojae Lee) 한국기독교교육정보학회 2017 기독교교육정보 Vol.0 No.54
이 연구의 목적은 직장생활을 하는 그리스도인들이 직장에서 하는 일상적인 일을 신앙의 관점으로 이해하고 실천할 수 있는 프로그램을 제시하는 것이다. 지금까지 교회 교육은 목회자와 신학자가 만들고 이끌어온 교리 공부 혹은 성경 공부에 치중해왔다. 이러한 교육은 복잡다단한 일상의 일들을 해석하고 적용하는 교육에 그리 효과적이지 못한 것이 사실이다. 이 때문에 그리스도인들은 일을 하나님의 소명으로 깨닫지 못해 직장에서 그리스도인으로서의 역할을 제대로 수행하지 못하는 실정이다. 그리스도인들의 일상생활을 공적 선교대상으로 삼아 교육하는 일이 시급하다. 교회 외곽의 여러 선교 단체들은 이러한 문제와 필요를 의식하고 직장인들을 위한 사역을 전개하며 여러 가지 교육 프로그램을 만들어 시행하고 있지만 탄탄한 신학적 기반과 논리적 일관성, 현실 변혁성 부족 등의 한계점들을 노출하고 있다. 필자는 그리스도인들이 직장에서 경험하는 현실 문제들을 중심으로 창조 신학과 십자가 신학을 바탕 위에 여덟 가지 주제들로 구성된 프로그램을 일하는 그리스도인들을 위한 교회 교육 프로그램으로 제안한다. 그리스도인들은 이 프로그램을 통해 직장에서 무엇을 위해 어떻게 일해야 하는지를 생각하고 직장 현실에 적용할 수 있다. This article aims to propose a church education program for Christians working in the marketplace who seeks to understand thend practice the meaning of faith and work in their work places. Many Christians simply do not know what and how to do in their works. However, everyday routines are not neutral field that is irrelevant of faith, but the ultimate target of our ministry that reflects the holy purpose and grace of God. Several para-church organizations recently have tried to provide programs for working Christians. They are helpful for Christians to practice faith in the works. However, they face some problems to apply and transform work and the culture of business, because they are not strong in their theological foundations. I will try to suggest “a marketplace theology program” that follows the basic structure of above programs but supplements their weaknesses. My program is based upon two theological foundations: creation theology and the theology of the cross of Jesus Christ. It is composed of eight subjects such as work as vocation, fall of work, salvation of work, ethical work, discernment of vocation, money issues, keeping Sabbath, church and work. These subjects are the most urgent struggles for Korean working Christians to be dealt with for the successful everyday life of working Christians.
마찰교반용접한 이종간 알루미늄합금의 미세조직과 인장특성
이원준(WonJun Lee),이효재(HyoJae Lee),박원조(WonJo Park) 대한기계학회 2012 대한기계학회 춘추학술대회 Vol.2012 No.11
Friction stir welding process was conducted on 5 ㎜ thick dissimilar aluminum alloys Al 2024-T3 and Al 7075-T6. And the microstructure, Vickers hardness and tensile properties were tested. 4 zones were observed through the micro structure: base material, heat affected zone, thermal mechanically affected zone and weld zone. Static strengths in such joints typically exceed 80% of the parent of the parent strength of the weaker alloy. In this study, the results showed that the yield strength and tensile strength have exceed 92% and 88%, and the weakest part of the welded material has exceed 88% of the weaker material Al 2024-T3, while the weld zone is 12% higher than the weaker material Al 2024-T3.
[PE-0032] QTL mapping for tiller number with Korean japonica rice varieties
Dong Kyung Yoon(Dong Kyung Yoon),Chaewon Lee(Chaewon Lee),Yunji Shin(Yunji Shin),Hyoja Oh(Hyoja Oh),Inchan Choi(Inchan Choi),Gang-Seob Lee(Gang-Seob Lee),Song Lim Kim(Song Lim Kim),Jeongho Baek(Jeongh 한국육종학회 2022 한국육종학회 공동학술발표집 Vol.2022 No.-
정신분열병 환자의 자기관찰 비디오가 병식(病識)에 미치는 효과
이길자,안효자 대한간호학회정신간호학회 2002 정신간호학회지 Vol.11 No.1
The purpose of this study was to examine the effect of videotaped self-observation on developing insight among schizophrenic clients and to enhance the insight of Schizophrenic clients. Clients who are aware of their psychological condition, such as suffering from Schizophrenia, can manage their own psychopathologic problematic behaviors and show higher compliance on regular medication. A non-equivalent control group with pre-post test was utilized. The participants of the study were recruited from a Neuro-Psychiatric hospital in Daegu and the study was conducted from Nov. 15th of 2000 to Mar. 15th of 2001. A total of 44 clients were recruited for the study(experimental group=19, control group=25). In order to evaluate the effect of the videotaped self-observation on the insight of the mental disorder, the Scale th Assess Unawareness of Mental Disorder(SUMD) was utilized. The participants of the study answered the SUMD twice, initial test and post-treatment test. For experimental group, their psychopathologic problematic behaviors were videotaped and were showed to the clients themselves after 2 or 3 weeks. For control group, there was no treatment. The data were analyzed by the Chi-square test, and t-test using SPSSWIN 8.0 program. The results of this study were as follows : 1) There were no significant differences in insight of the mental disorder between experimental and control groups in the initial test. 2) There were significant differences in the levels of insight between the experimental and control groups after treatment(t=-3.80, p=.000). The sub-dimensions of the SUMD, especially consequence of mental disorder, the effect of medication, asociality, blunted affection and impaired communication were significantly different between the two groups. The results of this study highlighted the effectiveness of the videotaped self-observation on developing insight of schizophrenic clients as a therapeutic nursing intervention.
GPS Time Server Development for the RAON Superconducting Radio-Frequency Test Facility
Hyojae Jang,Changwook Son,Hyungjoo Son,Sangil Lee,Mijeong Park,Seung Hee Nam,Myung Ook Hyun 한국물리학회 2016 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.69 No.6
An ion accelerator, RAON, is going to be built in Daejeon, Korea, by the Rare Isotope Science Project (RISP) team in the Institute of Basic Science (IBS). In this accelerator, various ions, such as uranium, proton, carbon and calcium, will be accelerated and fed to researchers for experiments. To produce the ion beams and to satisfy the requirements, many devices such as accelerating structures, RF power supplies and ion sources will be installed and controlled according to the predefined control logic. For correct control of such devices, time and clock synchronization is essential. A time synchronization test bed is planned for the RAON superconducting radio-frequency (SRF) test facility, and a flexible, low-cost gps-based time server was developed for that purpose. In this paper, detailed information on the developed GPS server and the test results will be described.