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논의과정 활용 수업이 초등학생의 학습 동기와 과학태도와 미치는 영향
이하룡,남경희,문성배,김용권,이석희 한국초등과학교육학회 2005 초등과학교육 Vol.24 No.2
The purpose of this study is to examine the effects of science instruction using argumentation, with Tolumin's structure of argument, on students' learning motivation and scientific attitude. In the instruction, well-structured problems selected to be argument, in which interactions among students are stressed. The subjects were classified into two groups: One group is composed of sixty-seven students (experimental group) who were participated in solving processes of the scientific argument tasks, and the other is composed of sixty-nine students (comparative group) who were participated in the traditional teaching method. The results of this study implied that experimental group has a positive effect on students' learning motivation and scientific attitude.
Seong, Dong-Jae,Hong, Seoung-Jin,Ha, Seung-Ryong,Hong, Young-Gi,Kim, Hyo-Won The Korean Academy of Prosthodonitics 2016 The Journal of Advanced Prosthodontics Vol.8 No.5
Patients who underwent resection of maxilla due to benign or malignant tumor, or accident will have defect in palatal area. They get retention, support and stability from remaining tissues which are hardly optimal. The advantage of swing-lock attachment design is having multiple contacts on labial and lingual side of the abutment teeth by retentive strut and palatal bracing component. Because the force is distributed equally to abutment teeth, abutment teeth of poor prognosis can be benefited from it. It is also more advantageous to cover soft tissue defects which are hard to reach with conventional prosthesis. A 56-year-old female patient who had undergone a maxillectomy due to malignant melanoma complaining of loose and unstable surgical obturator. Surveyed crowns were placed on #12, 26, and 27. Teeth #11, 21, 22, and 23 had lingual rest seat and #24 had mesial rest seat to improve stability and support of the obturator. This clinical report presents the prosthetic management of a patient treated with obturator on the maxilla using swing-lock attachment to the remaining teeth.
Ha Ryong Kim,Jeong Eun Lee,Mi Ho Jeong,Seong Jin Choi,Kyuhong Lee,Kyu Hyuck Chung 환경독성보건학회 2015 환경독성보건학회지 Vol.30 No.-
Objectives: Cigarette smoking is associated with carcinogenesis owing to the mutagenic and genotoxic effects of cigarette smoke. The aim of this study was to evaluate the mutagenic and genotoxic effects of Korean cigarettes using in vitro assays. Methods: We selected 2 types of cigarettes (TL and TW) as benchmark Korean cigarettes for this study, because they represent the greatest level of nicotine and tar contents among Korean cigarettes. Mutagenic potency was expressed as the number of revertants per μg of cigarette smoke condensate (CSC) total particulate matter whereas genotoxic potency was expressed as a concentration-dependent induction factor. The CSC was prepared by the International Organization for Standardization 3308 smoking method. CHO-K1 cells were used in vitro micronucleus (MNvit) and comet assays. Two strains of Salmonella typhimurium (Salmonella enterica subsp. enterica ; TA98 and TA1537) were employed in Ames tests. Results: All CSCs showed mutagenicity in the TA98 and TA1537 strains. In addition, DNA damage and micronuclei formation were observed in the comet and MNvit assays owing to CSC exposure. The CSC from the 3R4F Kentucky reference (3R4F) cigarette produced the most severe mutagenic and genotoxic potencies, followed by the CSC from the TL cigarette, whereas the CSC from the TW cigarette produced the least severe mutagenic and genotoxic potencies. Conclusions: The results of this study suggest that the mutagenic and genotoxic potencies of the TL and TW cigarettes were weaker than those of the 3R4F cigarette. Further study on standardized concepts of toxic equivalents for cigarettes needs to be conducted for more extensive use of in vitro tests.
한국인 여성에서 인터루킨-1 수용체 안타고니스트 유전자 다형성과 비만 및체질과의 관련성 연구
문성원 ( Seong Won Moon ),박종하 ( Jong Ha Park ),염승룡 ( Seung Ryong Yeom ),이수경 ( Soo Kyung Lee ),신병철 ( Byung Cheul Shin ),권영달 ( Young Dal Kwon ),송용선 ( Yung Sun Song ),최현주 ( Hyun Joo Choi ) 한방재활의학과학회 2004 한방재활의학과학회지 Vol.14 No.4
목적: Interleukin-1 receptor antagonist(IL-1ra)의 혈장 농도는 비만에서 증가되며 강한 유전적 통제를 받는다. 이에 비만과 IL-1ra 유전자 다형성 및 사상체질과의 관계를 연구하고자 하였다. 방법: 67명의 정상군, 133명의 과체중군, 61명의 비만군 대상자에서 IL-1ra 유전자의 intron 2에서의 penta-allelic 86-bp tandem repeat 빈도를 조사하였으며, IL-1ra의 유전자형은 PCR을 통해 분석하였다. 체지방량과 체지방률은 체성분분석기를 이용하였으며, 사상체질 분석은 QSCC II 프로그램을 이용하였다. 결과: 정상체중군에 비하여 과체중과 비만군에서 A1A2 carrier의 빈도가 높았으며, 대립유전자 2형 보유자의 빈도가 정상체중군에 비하여 과체중과 비만군에서 2배정도 높게 나타났으나 통계학적인 유의성은 없었다. 태음인의 빈도는 정상체중군에 비하여 과체중과 비만군에서 높게 나타났으며, 특히 IL-1ra A2- carrier인 과체중과 비만군에서의 태음인의 빈도가 높게 나타났다.결론: IL-1ra 유전자 다형성은 BMI에 대하여 중요한 영향을 주는 인자는 아닌 것으로 보이나, 본 연구는 비만과 비만 후보유전자로서의 IL-1ra 유전자의 다형성 및 사상체질과의 관계를 규명하려고 하였다는 데에서 그 의의가 있다.
Kim, Ha Ryong,Lee, Jeong Eun,Jeong, Mi Ho,Choi, Seong Jin,Lee, Kyuhong,Chung, Kyu Hyuck The Korean Society of Environmental Toxicology 2015 환경독성보건학회지 Vol.30 No.-
Objectives Cigarette smoking is associated with carcinogenesis owing to the mutagenic and genotoxic effects of cigarette smoke. The aim of this study was to evaluate the mutagenic and genotoxic effects of Korean cigarettes using in vitro assays. Methods We selected 2 types of cigarettes (TL and TW) as benchmark Korean cigarettes for this study, because they represent the greatest level of nicotine and tar contents among Korean cigarettes. Mutagenic potency was expressed as the number of revertants per ${\mu}g$ of cigarette smoke condensate (CSC) total particulate matter whereas genotoxic potency was expressed as a concentration-dependent induction factor. The CSC was prepared by the International Organization for Standardization 3308 smoking method. CHO-K1 cells were used in vitro micronucleus (MNvit) and comet assays. Two strains of Salmonella typhimurium (Salmonella enterica subsp. enterica ; TA98 and TA1537) were employed in Ames tests. Results All CSCs showed mutagenicity in the TA98 and TA1537 strains. In addition, DNA damage and micronuclei formation were observed in the comet and MNvit assays owing to CSC exposure. The CSC from the 3R4F Kentucky reference (3R4F) cigarette produced the most severe mutagenic and genotoxic potencies, followed by the CSC from the TL cigarette, whereas the CSC from the TW cigarette produced the least severe mutagenic and genotoxic potencies. Conclusions The results of this study suggest that the mutagenic and genotoxic potencies of the TL and TW cigarettes were weaker than those of the 3R4F cigarette. Further study on standardized concepts of toxic equivalents for cigarettes needs to be conducted for more extensive use of in vitro tests.
전승룡 ( Seong Ryong Jeun ),이재문 ( Jae Moon Lee ),오하령 ( Ha Ryoung Oh ) 한국정보처리학회 2007 한국정보처리학회 학술대회논문집 Vol.14 No.2
본 논문은 연관규칙탐사 기술에서 사용되는 빈발항목집합과 동일한 개념으로 문서분류의 문서에서 빈발단어집합을 정의하고, 이를 사용하여 문서분류 방법으로 잘 알려진 kNN에 적용하였다. 이를 위하여 하나의 문서는 여러 개의 문단으로 나뉘어졌으며, 각 문단에 나타나는 단어들의 집합을 트랜잭션화하여 빈발단어집합을 찾을 수 있도록 하였다. 제안한 방법은 AI::Categorizer 프레임워크에서 구현되었으며 로이터-21578 데이터를 사용하여 학습문서의 크기에 따라 그 정확도가 측정되었다. 정확도의 측정된 결과로 부터 제안된 방법이 기존의 방법에 비하여 정확도를 개선한다는 사실을 알 수 있었다.
Lee, Seong Ryong,Lee, Joong Ha,Jhun, Chul Gyu,Kwon, Soon-Bum,Yoon, Tae-Hoon,Kim, Jae Chang American Institute of Physics 2009 JOURNAL OF APPLIED PHYSICS - Vol.105 No.7
<P>We propose a dual mode liquid crystal display (LCD), which can realize dynamic and memory operating LCD modes in a display panel. Horizontal switching and bistable chiral splay nematic LCD modes are used for the dynamic and memory operations, respectively. As the horizontal switching is applied to the dynamic operation, it is possible to use the same LC texture of splay for realizing dark states of both the dynamic and memory operations. Because, for each operation, pixel division is not required in the proposed dual mode LCD, there is no decrease in aperture ratio and resolution. In order to obtain superior display performance for both operations, a wideband half-wave configuration is employed to the proposed dual mode LCD. Due to the wideband configuration, very low light leakages at the dark state and good dispersion characteristics for the entire visible range are obtained. As a result, the proposed dual mode LCD shows a high contrast ratio of over 100: 1 for both the dynamic and memory operations. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3103769]</P>
Seung-Ryong Ha,Sung-Hun Kim,Seung-Il Song,Seong-Tae Hong,Gy-Young Kim 대한치과보철학회 2012 The Journal of Advanced Prosthodontics Vol.4 No.4
Implant-supported overdenture is a reliable treatment option for the patients with edentulous mandible when they have difficulty in using complete dentures. Several options have been used for implant-supported overdenture attachments. Among these, bar attachment system has greater retention and better maintainability than others. SFI-Bar(R) is prefabricated and can be adjustable at chairside. Therefore, laboratory procedures such as soldering and welding are unnecessary, which leads to fewer errors and lower costs. A 67-year-old female patient presented, complaining of mobility of lower anterior teeth with old denture. She had been wearing complete denture in the maxilla and removable partial denture in the mandible with severe bone loss. After extracting the teeth, two implants were placed in front of mental foramen, and SFI-Bar(R) was connected. A tube bar was seated to two adapters through large ball joints and fixation screws, connecting each implant. The length of the tube bar was adjusted according to inter-implant distance. Then, a female part was attached to the bar beneath the new denture. This clinical report describes two-implant-supported overdenture using the SFI-Bar(R) system in a mandibular edentulous patient.
체외수정 및 배아의 자궁내 이식후 발생된 병합 임신 1례
김성혜,박윤정,이두룡,박종하 啓明大學校 醫科大學 1991 계명의대학술지 Vol.10 No.4
The simultaneous ocurrence of tubal and intrauterine pregnancy, a kind of abnormal pregnancy, is believed to result from the implantation of dizygotic embryos at widely separated sites. Serveral studies reported an incidence of 1 in 30,000 spontaneous pregnancies, but recently assited reproductive technology such as in vitro fertilization (IVF) or gamete intrafallopian transfer (GIFT) increase the incidence of this type of pergnancy up to 1%. We experienced a case of combined intrauterine and right tubal pregnancy occurred after in vitro fetilization and embryo transfer. Therefore, we presented this case with a brief review of the literatures.