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C-NMR 스펙트럼상에 나타난 벤젠의 치환기효과에 관한 양자화학적 해석
具廣謨,金海原,金明哲 慶一大學校 1993 論文集 Vol.9 No.1
Effect of Substituents on ??C-NMR Spectrum was investigated by quantumchemical calculation. The CNDO/2 calcutions have been applied on molecular models for the monosubstituted benzens. The chemical shifts on NMR spectrum was found to be related primarily to the formal charge density of carbon in benzene. Total energy and dipolemoment were secondary factors affect chemical shift. The calculated formal charge densites have been changed remarkable according to the kind of substituent.
이윤희,안준모,김태성,박은희,정집광,이석민,이해혁 순천향의학연구소 2002 Journal of Soonchunhyang Medical Science Vol.8 No.1
Object: To compare pregnancy outcome between term pregnancy and postterm pregnancy. Method: A clinical observation has been made on 60 cases of postterm pregnancies out of 64 cases delivered at the Dept. of Obstetrics & Gynecology, Soonchunhyang University from January 1, 1997 to May 31, 2002. 100 cases of full term deliveries of 37 to 42 gestational weeks conducted in same period were used as the control group for this study. We analyzed their cesarean section rate, fetal weight, placental weight, meconium stain, perinatal morbidity. The statistical significance was defined as P<0.05. Result: The following results were obtained 1. The incidence of postterm pregnancy was 1.34%. 2. The cesarean delivery rate in postterm group(51.7%) was significantly higher than control group(26%). 3. The incidence of large fetus (weight over 4,000gm) in the postterm group(21.7%) was higher than control group(2%). 4. The weight of placenta was 757g and 706g in the postterm group and control group respectively. 5. 1, 5 minute Apgar score lower in the postterm group than control group. Conclusion : To decrease perinatal morbidity and cesarean rate at 42 or more weeks gestation, appropriate labor induction and twice weekly biophysical profile and USF(AI, Doppler) may be indicated.
점증적 최대운동이 항산화 효소의 혈중 농도에 미치는 영향
강신범,이상우,김상권,서해근,김준모 東亞大學校附設스포츠科學硏究所 1999 스포츠科學硏究論文集 Vol.17 No.-
The purpose of this study is to examine how exercise stimulus effects on the boold concentration of antioxidant enzymes. And then, the results of analysing the boold concentration of antioxidant enzymes before and after graded maximal exercise based on high school's 7 males, are as follows: 1. The blood concentration of SOD is found to have a significant increase before and after graded maximal exercise. 2. The blood concentration of CAT is found to have a significant increase before and after graded maximal exercise. 3. The blood concentration of CAT is found to have a significant change. As the above results, the severe exercise of short time is found to increase the blood concentration of SOD as well as CAT. And then, the blood concentration of GPX is found not to have a significant exchange. To examine the mechanism of the above results manifestly, it is considered that the deep study based on exercise style, duration time and exercise intensity, should be continued.
광조사 시간에 따른 복합레진과 Ormocer의 중합수축에 관한 연구
정연정,민경산,이해형,조경모,조용범 大韓齒科保存學會 2003 Restorative Dentistry & Endodontics Vol.28 No.4
Ormocer has organic-inorganic compound polymers. One of advantages of ormocer is reduced polymerization shrinkage. The purpose of this study was to compare the amount of contraction shrinkage of composite resins and ormocers. Additionally, the time of each material when there is no further change of contraction shrinkage was analysed. Four brands of composite resins (P-60, Surefil, Z-250 and Denfil) and two brands of ormocers (Definite and Admira) were used. 20 seconds, 40 seconds and 60 seconds of curing times were given. Contraction shrinkage of them were measured using a linometer for 80 seconds. The effect of material and curing time to contraction shrinkage at the time of 80 seconds was analysed by two-way ANOVA. The effect of time to contraction shrinkage was analysed by one-way ANOVA, and the time when there was no further change of the contraction shrinkage was analysed. The results are as follows : 1. P-60, Dfinite, Z-250 and Denfil had no further change of contraction shrinkage from the time of 20 seconds, and Surefil and Admira had no further change of contraction shrinkage from the time of 10 seconds. 2. Statistical analysis revealed volumetric shrinkage varied among material (p<0.05). No significant difference of contraction shrinkage among different curing times was found, and there was no effect of interaction between materials and curing times to contraction shrinkage. 3. Dfinite and Admira showed the statistically same contraction shrinkage with those of Z-250 and P-60, which is higher than that of Surefil and lower than that of Denfil (p<0.05).
소수성 NaY Zeolite의 합성과 탈알루미나의 특성
서동남,하종필,구상모,이해진,김익진 호서대학교 반도체제조장비국산화연구센터 2000 학술대회 자료집 Vol.2000 No.1
NaY형 Zeolite는 현재 그들의 촉매적 특성과 흡착성 그리고 이온 교환성들을 이용하여 산업에 중요하게 사용되어지고 있다. 본 실험은 고온 스팀을 이용한 방법과 산처리에 의한 방법으로 탈알루미나의 효과를 확인하는 실험을 하였다. 먼저 SiO_2/Al_2O_3 몰비가 4∼6인 합성 NaY zeolite를 분위기 소성로에 넣고 증기발생 장치를 이용하여 500℃에서 고온 스팀을 분위기 소성로에서 일정하게 주입하였다. 에에 따른 결과는 탈알루미나 처리 후의 XRF와 BET의 결과로 탈알루미나 처리에 따라서 SiO_2/Al_2O_3의 몰비가 20.6에서 21까지 증가한 것을 알 수 있으며 또한 BET의 결과에서 탈알루미나 처리에 의해서 비표면적이 증가한 것을 확인할 수 있으며 특히 meso pore area의 증가는 탈알루미나에 의해서 zeolite의 골격구조가 일부 파괴되었음을 알 수 있다.
일측성 질폐쇄 및 동측 신장 무발생을 동반한 중복자궁 2예
윤일영,여소진,김형문,김정식,김태희,이해혁,남계현,이권해,김준모,김민의 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2
Uterus didelphys with unilateral obstructed hemivagina and ipsilateral renal agenesis usually presents after menarch with progressive abdominal pain during menses secondary to hematocolpos, and indeed a very rare congenital anomaly due to Mullerian duct malformation. An accurate and prompt diagnosis is of importance to permit treatment and to assure the future fertility of the patient. Pelvic ultrasound, physical examination and pelvic MRI established a diagnosis of hematometracolpos secondary to uterus didelphys with unilateral imperforate hemivagina. An incision in the vaginal septum allowed drainage of the hematocolpos, providing relief of the patients symptoms. We report two case of uterus didelphys with obstructed hemivagina with brief review of the literature.
국내에서 유행하는 HIV의 전파 경로에 따른 Subtype 분포
이주실,남정구,김성순,강춘,최병선,김옥진,박미선,성봉모,서순덕,전수경,변승옥,신영오,조해월 대한감염학회 2001 감염 Vol.33 No.5
Background : Previous data have been reported that subtype B is prevalent in South Korea, but neither the extent nor the proportion of subtypes could be evaluated. This study was designed to analyze the distribution of HIV-1 subtypes, temporal instructions and transmission dynamics between epidemiological groups. Methods : 1,280 Koreans had been diagnosed as HIV seropositive during the period 1985 to 2000. Among them, 134 individuals were selected for this molecular epidemiological study. 134 DNAs were isolated from uncultured or cultured peripheral blood mononuclear cells. V3-V5 (0.7 kb) fragment of HIV-1 env gene was amplified by nested polymerase chain reaction and was sequenced. Results : HIV-1 isolates from thirty-seven homosexuals were all subtype B (100%). On the other hand, 66 isolates from 94 heterosexuals were subtype B (70%) and 28 were non B subtypes (30% : 13 A, 4 C, 2 D, 8 E , 1 G). Only subtype B strains were isolated from 73 males who were infected with HIV inside Korea while 16 B and 20 non B subtype strains were isolated from 36 males who were HIV infected outside of Korea. However, B and non B strains were isolated half and half from females who were infected inside Korea except one. Conclusion : The HIV-1 subtype B strains are prevalent in Korea from the early HIV infection until present in both homo and heterosexuals. Non B strains have been transmitted from men who were infected outside Korea to their spouses and casual partners. So, we need further study to monitor subtype B and non B HIV transmission in epidemiological groups of Korea, (Korean J Infect Dis 33:311∼318, 2001)
Squalene Adjuvant를 이용한 단백질 항원의 세포성 면역반응 유도
도현주,김성열,안종성,하영주,이승찬,오재택,장명호,정홍석,문홍모,박해준 大韓免疫學會 1996 大韓免疫學會誌 Vol.18 No.3
To investigate the role of adjuvant for cytotoxic T lymphocytes (CTL) induction, squalene-based adjuvant was studied its capability eliciting to the induction of cellular immunity as well as humoral immunity to exogeneous proteins. Ovalbumin (OVA) was used as model proteins. It was demonstrated that antigen formulation consisted of metabolizable oil squalene mixed with Tween 80 and pluronic L121 (S/TJ121) could induced the antigen specific CTL responses and antibodies irrespective of immunization routes in mice. We also demonstrated that this antigen formulation was a inducer of CD8+, major histocompatibility complex(MHC) class I-restricted, and antigen-specific C;1'Ls. These data suggest that the squalene-based emulsion system is a potent adjuvant inducing cellular immunity as well as humoral immunity.