이광수 초기 단편소설의 모티프 양상연구

이상재 ( Sang Jae Lee ) 배달말학회 2004 배달말 Vol.34 No.-

There is no doubt that Lee, Kwang-soo is a memorial author in history of Korean literature. His early shot stories are significant that they have some features of modern novels besides they are recognized as start line of Lee`s literary achievement. However, the literati who has studied Lee`s novels has been depreciating his works and analyzing them with relating non-literary aspects, which is definitely inappropriate to study literary material. This essay will be tracing the process which the motives of Lee`s early shot stories is embodying the themes to evaluate objectively the significance of the shot stories. The concept of the motif which is selected as a method of this analysis is based on the motif theory of B. Tomashevsky. The motif of Lee`s early shot stories is divided into 3 groups. The first motive is `Marriage`. Lee, Kwang Soo kept talking about marriage in his stories written in 1910`s. The stories about marriage are `Cold-Heartedness(無情)`, `A boy`s tear (소년의 비애)` and `To my little friend(어린 벗에게)` and so on. These shout stories express how badly the antinomy of marriage out of date affect whole society. In addition, there are various characters in these stories to describe that the problems of marriage are occurring to all kind of stratums in society. They are evaluated that the quality is a little lower than his other works because there is something out of the themes which should be focused on marriage discovered. The second motif is `Sacrifice`. These works were written before Korea became a colony of Japan , and one can feel Lee`s patriotism through `A young a sacrifice (어린희생)`, `Dedicator(헌신자)`. Lee is emphasizing antagonism against Japan and education for independent development of Korea. However, these stories have some defects which the author is equating patriotism and philanthropy and making readers confused by emphasizing parts which have nothing to do with `Sacrifice`.The last motif is `Solitude`. This demonstrates Lee`s internal conflict after Korea belonged to Japan; `Kim Kyung(김경)``, `Wandering(방황)` and `Yoon, Kwang Ho(윤광호)`. The characters of these stories are straying people, and they point the importance of individualism through showing conflict between nationalism and individualism. In other words, people have to overcome loneliness first. Lee, Kwang-soo`s early works are very meaningful from a point of literary veiw because they were written with very close relation with the state of the day and make perceive the thoughts of the intellect. Moreover, there are some modern aspects discovered in Lee`s early works.

수학자 이상설이 소개한 근대자연과학: <식물학(植物學)>

박영민 ( Young Min Park ),김채식 ( Chae Sik Kim ),이상구 ( Sang Gu Lee ),이재화 ( Jae Hwa Lee ) 한국수학교육학회 2011 수학교육논문집 Vol.25 No.2

This paper deals with contents that Sang-Seol Lee contributed to the natural science in the 19th century Korea. Prof. Sung-Rae Park, the science historian, called Sang-Seol Lee Father of the Modern Mathematics education of Korea. Sang-Seol Lee wrote a manuscript Botany with a brush in late 19th century. Botany was transcribed from Science Primers: Botany (written by J. D. Hooker), which is translated into Chinese by Joseph Edkins in 1886. The existence of Sang-Seol Lee`s book Botany was not known to Korean scientists before. In this paper, we study the contents of Botany and its original text. Also we analyze people`s level of understanding Western sciences, especially botany at that time. In addition, we study authors of 16 Primers for Western Knowledge. We study the contribution of mathematician Sang-Seol Lee to science education in the 19th century Korea.

수학자 보재 이상설(李相卨)의 근대자연과학 수용 -『백승호초(百勝胡艸)』를 중심으로-

이상구 ( Sang Gu Lee ),박종윤 ( Chong Yun Park ),김채식 ( Chae Sik Kim ),이재화 ( Jae Hwa Lee ) 한국수학교육학회 2013 수학교육논문집 Vol.27 No.4

Sang-Seol Lee(1870-1917) wrote a manuscript BaekSeungHoCho(百勝胡艸) in the late 19th century. BaekSeungHo-Cho was transcribed in classical Chinese from the 1879 Japanese book Physics(物理學) by Teizo Ihimori (1851-1916). Sang-Seol Lee, a famous independence activist, is also called Father of the Modern Mathematics Education of Korea,because of his early contribution to the modern mathematics education in the 19th century. In this paper, we introduce contents of his manuscript BaekSeungHoCho for the first time and discuss the significance of this book. Also, we show his constribution on the introduction to modern physics in the late 19th century Korea.

Correlation Between Primary Si and Silicide Refinement Induced by Ultrasonic Treatment of Multicomponent Al–Si Alloy Containing Ti, Zr, V, and P

Jae‑Gil Jung,Young‑Hee Cho,Tae‑Young Ahn,Jae‑Hee Yoon,Sang‑Hwa Lee,Jung‑Moo Lee 대한금속·재료학회 2019 METALS AND MATERIALS International Vol.25 No.5

The correlation between primary Si and silicide refinement induced by ultrasonic treatment (UST) of multicomponent Al–Sialloy containing Ti, Zr, V, and P was investigated. UST significantly refined the primary Si phase owing to cavitation-inducedwetting and deagglomeration of MgAl2O4particles. Lowering the UST finish temperature caused deterioration of the degreeof primary Si refinement, instead leading to silicide refinement. Cavitation-induced silicide nucleation on wetted MgAl2O4consumed the MgAl2O4particles, particularly in the case of primary Si nucleation. Similarly, the formation of an AlP phaseon the silicide phase reduced the nucleation efficiency of the AlP phase. Poisoning of the MgAl2O4and AlP phases by thesilicide phase was responsible for the deterioration in primary Si refinement. Room-temperature tensile strength and hightemperatureelongation were increased by UST and were dependent on the size of primary Si.

Ganglioside GM1 influences the proliferation rate of mouse induced pluripotent stem cells

( Jae-sung Ryu ),( Kyu-tae Chang ),( Ju-taek Lee ),( Malg-um Lim ),( Hyun-ki Min ),( Yoon-ju Na ),( Su-bin Lee ),( Gislain Moussavou ),( Sun-uk Kim ),( Ji-su Kim ),( Kinarm Ko ),( Kisung Ko ),( Kyung- 생화학분자생물학회 2017 BMB Reports Vol.50 No.6

The ACKNOWLEDGEMENTS should be corrected as follows, This research was supported by a grant (Code# PJ0074922012) from the Korean Rural Development Administration, and has been supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education Science and Technology (2010-0022316 and KCG5401011), and the KRIBB/KRCF Research Initiative Program (NAP), Korea. The published article in this journal was a part of the 2013 Doctoral thesis of Jae-Sung Ryu submitted to Wonkwang University, Korea. and not This research was supported by a grant (Code# PJ0074922012) from the Korean Rural Development Administration, and has been supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education Science and Technology (2010-0022316 and KCG5401011), and the KRIBB/KRCF Research Initiative Program (NAP), Korea.

한국 근대수학교육의 아버지 이상설(李相卨)이 쓴 19세기 근대화학 강의록 『화학계몽초(化學啓蒙抄)』

Son, Yongkeun,Kim, Chae Sik,Lee, Sang-Gu,Lee, Jae Hwa 강원경기수학회 2012 한국수학논문집 Vol.20 No.4

본 원고는 한국 근대 수학교육의 아버지 이상설(李相卨, 1870-1917)이 자연과학-화학-에 기여한 내용을 다루고 있다. 이상설은 "수리(數理)"를 쓴 시기를 전후하여, 같은 시기에 붓으로 총 46쪽에 달하는 "화학계몽초(化學啓蒙抄)"를 필사하였다. 분석해 본 결과 그 원전은 영국인 H. E. Roscoe(羅斯科, 1833-1915)가 1876년 발간한 Science Primers: Chemistry를 영국인 선교사 Joseph Edkins(艾約瑟, 1823-1905)가 번역하여 1886년에 간행한 "화학계몽(化學啓蒙)"으로 "서학계몽(西學啓蒙)" 16종 가운데 하나이다.

환경조건에 따른 끌어당김 성형품의 성능 평가

이재식,이재욱,이상백 濟州大學校工科大學産業技術硏究所 1996 尖端技術硏究所論文集 Vol.7 No.1

The effects of environmental conditions upon performance of composite materials, pultruded from a glass fiber reinforced isophthalic unsaturated polyester system. Water absorption curve of composite immersed into 50℃ water was constructed to observe water uptake behavior. Changes in tensile modulus and strength, flexural modulus and strength, impact strength and dynamic mechanical properties of dry and wet composites exposed to water, NaCl and NaOH solutions were measured. The ultraviolet resistance of composites was also studied. The moist environments had a detrimental effect on impact strength. Other properties were not significantly affected by environments.

8-hydroxyguanine이 전립선비대증 발생에 미치는 효과

이재원,이석영,이형래,이상철,김용태,김원재 충북대학교 의학연구소 2002 忠北醫大學術誌 Vol.12 No.2

연구목적: 전립선비대증은 노화현상에 의해 발생하는 질환으로서 임상적으로 주로 50세 이상에서 증상이 나타난다. 산소 라디칼은 DNA의 염기에 다양한 손상을 미칠 수 있다. 산소 라디칼에 의한 DNA의 변화에는 여러 가지 형태가 있으며 이러한 변화들 가운데서 guanine이 8-oxoguanine (8-hydroxyguanine, oh8Gua)으로의 수산화(hydroxylation) 반응은 가장 흔히 관찰되는 형태로서 노화 및 만성 퇴행성 질환, 기타 여러 질환의 중요한 병인으로 인식되고 있다. 세포에 유해한 영향을 주는 oh8Gua의 생성으로부터 유전자를 보호하는 수복효소 중 8-oxoguanine-DNA glycosylase (OGG1)가 주된 역할을 하는 것으로 알려져 있는데 이 효소를 생산하는 유전자인 hOGG1은 사람마다 유전자형이 다르다. 따라서 본 연구에서는 전립선비대증이 노화와 관련된 hOGG1 유전자형에 따라서 발생에 차이가 있는지를 조사하였다. 대상 및 방법: 충북대학교 병원에서 전립선비대증으로 진단 받고 입원하여 경요도전립선절제술을 받은 환자로 병리 조직학적으로 전립선비대증이 확인된 81명을 환자군으로 하였으며, 충청북도내 10개 군에서 50세 이상의 건강한 성인 남자 764명을 대상으로 실시한 전립선 무료검진에서 경직장 초음파 검사상 전립선 크기 20 gm 이하, 국제 전립선 증상 점수(IPSS) 7점 이하, 요속 10 ㎖/s 이상, 전립선 특이 항원(PSA) 4.0 ng/㎖ 이하인 81명을 대조군으로 설정하였다. 이들에서 채취한 혈액에서 genomic DNA를 얻은 후 PCR-SSCP (polymerase chain reaction-single stranded conformation polymorphism), 직접 염기서열분석(direct DNA sequencing) 및 RFLP (restriction fragment length polymorphism)를 통해서 두 군 사이의 hOGG1 유전자의 다형성을 분석하였다. 결과: 대조군에서 codon 326형은 Ser326Ser형이 12례(14.8%), Ser326Cys형이 51례(63.0%), Cys326Cys형이 18례(22.2%)였으며 전립선비대증 환자군에서는 Ser326Ser형이 15례(18.5%), Ser326Cys형이 34례(42.0%), Cys326Cys형이 32례(39.5%)로 두 군 사이에 통계적인 유의성이 관찰되었다(p=0.022). 또한 Cys326Cys형과 나머지(Ser326Ser, Ser326Cys)형으로 나누어 시행한 통계 분석에서도 대조군에서는 각각 18례(22.2%), 63례(77.8%)였으며 전립선비대증 환자군에서는 32례(39.5%), 49례(60.5%)로 통계적인 유의성이 관찰되었다(p=0.017, OR=2.286, 95% CI=1.149-4.546). 결론: hOGG1 유전자의 형태와 전립선비대증의 발생과는 밀접한 관련이 있었다. 즉 hOGG1 Cys326Cys형을 가진 사람에서 전립선비대증이 발생한 가능성이 높을 것으로 사료된다. Purpose: 8-oxoguanine DNA glycosylase (OSS1) rapairs DNA by removing 8-oxoguanine (oh8Gua), a highly mutagenic oxidative DNA adduct. Recently, the human gene for OGG1 (hOGG1) was cloned and several genotypes have been reported. However, the implications of such genotypes in benign prostatic lyperplasia have not been demonstrated. To assess the involvement of hOGG1 associated with the aging process on the developing of BPH, we analyzed the genetic polymorphisms of hOGG1. Materials and Methods: We studied the hOGG1 gene polymorphisms in 81 cases of BPH and 81 cases of normal controls. We performed the SSCP, PCR-based restriction fragment length polymorphism (RFLP) and direct sequencing to characterize the genetic polymorphisms of hOGG1 in both BPH patients and controls. Results: We found two polymorphic sites. A serine326/cysteine polymorphism at codon 326 (1a type) in exon 7 was associated with an exchange of amino acid. Another polymorphic site at codon 324 (1b type) in exon 6 was silent. We found that the distribution of hOGG1 genotypes in BPH patients (Ser326Ser type 18.5%, Ser326Cys type 42.0% and Cys326Cys type 39.5%) was significantly different from that in controls (14.8%, 63.0% and 22.2%, respectively) (p=0.022). Homozygosity for the Cys326Cys genotype significantly increased the risk of developing BPH, with the odds ratio (OR) being 2.286 (95% confidence interval [CI]=1.149-4.546) Conclusion: Our results suggest that the hOGG1 Cys326Cys genotype might play a important role in the development of BPH.

Sealed amalgam restoration의 미세누출에 관한 연구

이상헌,이상훈,이재천 大韓小兒齒科學會 2000 대한소아치과학회지 Vol.27 No.1

아말감은 널리 사용되어 온 대표적 치과재료이지만 치질과의 접착서이 없어 와동의 형태에 의해 유지되는 단점을 가진다. 아말감 수복물은 산화물에 의한 변연봉쇄가 일어나기 전까지 초기에 큰 미세누출을 보이며 수복초기에 이를 적절하게 예방하지 않으면 타액이나 미생물이 와동 내에 침투하게 되고 이로 인해 수복 후의 과민반응, 충전물의 용해 및 파괴, 변연 변색과 2차 우식이 유발되어, 결과적으로 수복물의 수명이 단축되며 치수 병변이 발생될 수도 있다. 최근 기존 아말감 수복의 장점을 그대로 유지하면서 치질삭제를 줄이고 변연을 봉쇄하며 소와열구에 예방적 처치를 함께 할 수 있는 수복법이 제안되었는데 이를 이른바 sealed amalgam이라 한다. 이 술식은 예방적 확대 없이 병소만을 제거한 뒤 수복물 변연과 인접 소와열구에 치면열구전색재를 도포함으로서 소와열구의 예방적 충전은 물론 수복물 변연과 치질사이의 틈을 봉쇄하여 미세누출을 감소시킬 수 있다고 하였다. 이에 저자는 아말감 수복 후 수복물의 마무리 처리와 전색재 적용시점을 달리하여 sealed amalgam 수복과 기존의 아말감 수복과의 미세누출의 차이를 비교하고자 30개의 상, 하악 소구치를 준비하여 Ⅴ급 와동을 소구치의 협, 설측에 형성하고 통상적 아말감 수복을 시행한 후 다음의 각 군으로 나누어 처리하였다. 제 1군 : 24시간 후 연마 (대조군) 제 2군 : 연마하지 않음, 즉시 전색재 적용 제 3군 : 연마하지 않음, 열순환(thermocycling)500회 후 전색재 적용 위의 처리 후 각 군을 5℃와 55℃의 온도변화를 30초씩 번갈아 주며 총 500회의 열순환을 실시한 후 1% methylene blue 용액에 침윤시켜서 100% 습도가 유지된 37℃ 항온기에 24시간 보관하였다. 치아를 레진에 매몰한 후 협설측으로 치아 장축에 평행하게 절단하여 stereomicroscope를 사용해 색소침투도를 관찰하여 다음과 같은 결론을 얻었다. 1. 평균 미세누출은 연마하지 않고 바로 치면열구전색재를 도포한 2군이 가장 낮았고, 연마만 시행한 1군이 가장 높았다. 2. 실험군 간의 미세누출 비교에서 연마만 시행한 1군은 2군에 비해 미세누출이 컸으며 통계적으로 유의성있는 차이를 보였다(p<0.05). 3군은 1군보다 평균 미세누출이 작았으나 통계적으로 유의한 차이가 없었다(p>0.05). 2군은 3군보다 평균 미세누출이 작았으나 통계적으로 유의한 차이가 없었다.(p>0.05) Amalgam, though a widely used dental material, does not bond to the tooth substrate. Therefore, retentive preparation of the cavity is necessary. Such amalgam restorations, until corrosion products form and plug the margin, will show significant marginal leakage. Unless this is prevented early on, saliva and bacteria may enter the cavity, causing postoperative hypersensitivity,dissolution and collapse of the restoration, discoloration of the margin and secondary caries, leading to shortened life-span of the restoration and pulpal pathosis. Recently, a method of restoration has been introduced whereby tooth material can be preserved, cavity margin can be sealed and preventive treatment of pit and fissure can be administered while retaining all the advantages of conventional amaogam restorations. Such sealed amalgams involve removing the carious lesion without extending the cavity for prevention and using pit and fissure sealants to seal cavity margins and pit and fissures to reduce microleakage. In this study, finishing of the amalgam and sealant application were performed after different intervals following of amalgam restoration to compare the microleakage of sealed and conventional amalgam restorations. Thirty bicuspids were prepared with Class V cavity preparations on the buccal and lingual surfaces. After amalgam placement, they were divided into the following groups and treated accordingly. Group 1 : Polishing after 24 hours Group 2 : Immediate sealant application without polishing Group 3 : No polishing, but sealant applied after thermocycling 500 times After treatment, the samples were thermocycled 500 times between 5℃ and 55℃ with a dwell time of 30 seconds. After thermocycling, the snmples were dipped into 1% methylene blue kept in a 37℃ incubator at 100% humidity for 24 hours. The teeth were then embedded in resin and cut bucco-lingually along the tooth axis and observed with a stereomicroscope to determine the degree of microleakage. The following results were obtained: 1. Group 2 showed the least microleakeage, while grorp 1 showed the greatest. 2. Group 1 showed significantly greater microleakage conpared to group 2 (P<0.05). However, no significant differences were found between group 1 and 3 (p>0.05). No significant differences on microleakage were also found between group 2 and 3 (p<0.05).

무작위 대조 이중맹검 시험을 통한 봉독 약침의 류마티스 관절염 치료 효과 연구

이상훈,홍승재,김수영,양형인,이재동,최도영,이두익,이윤호 WHO COLLABORATING CENTRE FOR TRADITIONAL MEDICINE 2003 東西醫學硏究所 論文集 Vol.2003 No.-

Objective : This study was performed in order to evaluate the effect of bee venom therapy on rheumatoid arthritis by randomized controlled double blind method. Method : RA patients were recruited and divided into an experiment group and a control group by random selection. As a double blind test, the experiment group was treated with bee venom injection on acupoints, and the control group was treated with normal saline injection on acupoints twice a week for 8 weeks. Tender joint count, swollen joint count, morning stiffness, pain, health assessment questionnaire, ESR. and CRP were estimated and analyzed at baseline, and at 1 month and 2 months after bee venom therapy Results : Compared to the control group, the experiment group showed significant decrease in tender joint count swollen joint count, morning stiffness, and health assessment questionnaire after 2 months. Pain, ESR and CRP showed significant decrease in the experiment group after 1 & 2 months. Conclusions : These results suggests that bee venom therapy could be an effective method in the treatment of patients with rheumatoid arthritis.