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D-Amino Acid Aminotransferase 활성보유 고온성미생물의 탐색 및 분류학적 특성 연구
곽미선,이승구,정상철,서승현,이재흥,전영중,김영호,성문희 충남대학교 약학대학 의약품개발연구소 1999 藥學論文集 Vol.15 No.-
To acquire an industrially useful biocatalyst for the enzymatic synthesis and production of various D-amino acids, 1,300 thermophiles isolated from the soil of Korea were analyzed for D-amino acid aminotransferase (D-AAT) activity. The enzyme activity was found from 110 strains of isolated thermophiles revealing its wide occurrence in thermophiles. Enzyme activity and thermal stability of the D-AAT producers were compared. Finally we have selected four thermophiles as producers of potent biocatalysts for the D-amino acid production; two therrnophiles, Bacillus sp. LK-I and LK-2, having higher specific activity and two thermophiles, B. stearothermophilus KL-01 and Bacillus sp. KLS-0l, having higher thermal stability than the D-AAT producers. Taxonomic and physiological characteristics of the four isolated thermophiles were described herein.
Sodium Trans-Bis(methyliminodiacetato)Chromate(Ⅲ)의 두가지 다른 空間群 P1 ̄와 A2/n間의 相互 變換
李珍昊,宋柱昊,崔成山,郭相姬,吳美蘭,박성진,李揆旺,徐廷善,徐日煥 충남대학교 1996 忠南科學硏究誌 Vol.23 No.1
The structure of sodium trans-bis(methyliminodiacetato) chromate(Ⅲ), C_10H_14O_8N_2CrNa, has been elucidated with two space groups P 1-; a=8.9856(6), b=13.308(1), c=6.261(1)Å, α=76.38(1), β=110.361(9), r=107.394(6)˚, V=662(2)Å^3, Z=2, μ=0.47mn^(-1), d=1.831Mg/㎥, R=0.0295 for 1901 independent reflections with F^2>2σ(F^2), and A2/n; a=13.65(5), b=6.261(1), c=16.85(6)Å, β=113.05(1)˚, V=1324(7)Å^3, Z=4, R=0.0287 for 1013 independent reflections with F^2>2σ(F^2). There are two different asymmetric half molecules in triclinic system and one asymmetric half molecule in monoclinic system. The structures of three different molecules are very similar in conformations. The four carboxyl O atoms and the two imino N atoms in each molecule produce a distorted octahedral coordination geometry around the Cr atom. The average distances of Cr-O(carboxyl) and Cr-N(imino) are 1.956 and 2.061Å respectively. Molecules are held together by ionic forces. In this paper, it has been also shown that the cell constants, Miller indices, atomic coordinates, lattice directions and reciprocal lattices of the two space groups can be mutually transformed.
단기 산전 배우자지지 강화교육프로그램이 분만과정 중 배우자 참여 효과와 지지에 미치는 효과에 관한 연구
곽인자,박광희,이미영,김미라,이희선,홍영미,윤선진,박현정 임상간호사회 2004 임상간호연구 Vol.10 No.1
Purpose: This study was designed to verify the effect of spouse participation during labor and the degree of support that pregnant women in labor perceived after the one session spouse s support reinforcement prenatal education program. Method: For this study, a nonequivalent control group non-synchronized design was used. In order to set up the objectives, this researcher developed the support reinforcement education program of spouse for one session. The experimental group was educated couples before labor and control group was not educated couples before labor in clinic. The subjects for this study were 87primiparas and 86spouses of primiparas who had vaginal deliveries in pregnancy from 37weeks in pregnancy to 42 weeks without postpartum complications. The research material was used to self answered questionnaires papers consisted of 51 items on general characteristics, prenatal information and the request of participation during labor, the participation effect of spouses and support degree to pregnant woman and data about neonate state were collected from medical record. SASv8.12 was used for the analysis of the data, In this analysis, &test and t-test were conducted. Result: There was a significant difference in the participation effect that pregnant women had perceived between experimental group and control group. There was not a significant difference in support degree of spouse that pregnant women had perceived. There was a significant difference in the participation effect of spouse and the support degree to pregnant women that spouses had perceived between experimental group and control group. Conclusion: The participation effect and support degree of spouse to pregnant women during labor was higher in experimental group than in control group. Therefore, we suggest that this one session spouse support reinforcement prenatal education in clinic is very helpful to couples that could not receive long-term prenatal childbirth education. Thus nurses in maternal care part are encouraged to provide pregnant women support reinforcement education program for spouse before labor pain onset and should be developed continually in clinic.
Sensitivity of Ba2WO5 to NOx gas at Elevated Temperature
Kwak, Mi-Sun,Lee, Joo-Hyeon,Hwang, Jeong-Sug,Park, Chong-Ook The Korean Ceramic Society 1999 The Korean journal of ceramics Vol.5 No.2
NOx sensing properties of $Ba_2WO_5$ were investigated by varying the sintering temperature in an effort to study the effects of the neck-width on gas sensitivity. $Ba_2WO_5$ sintered at $800^{\circ}C$, which exhibits neck-controlled conduction provides highest sensitivity of 47 and 29 at $500^{\circ}C$ to NO and $NO_2$, respectively. The samples sintered beyond $800^{\circ}C$ show sintering temperature-independent gas sensitivity. This may be because the grain boundary control is dominant at lower sintering temperatures and open neck control is dominant at higher sintering temperatures than $800{\circ}C$. The NOx sensing mechanism of $Ba_2WO_5$ was briefly discussed.
허균의 <東征賦> 연구 : 정철의 <관동별곡>과 김창협의 <동정부>와의 관련성을 중심으로
곽미선 (Kwak, Mi-sun) 洌上古典硏究會 2008 열상고전연구 Vol.27 No.-
이 논문은 허균의 금강산 기행체험을 형상화한 <동정부>를 중심으로 정철의 <관동별곡>, 김창협의 <동정부> 등 세 작품의 관련성을 고찰한 글이다. 辭賦와 歌辭는 수사적인 운용면에서 유사성을 지니는데 敷衍性, 對偶, 그리고 用事를 들 수 있다. 논문의 연구대상으로 설정한 정철의 가사작품과 허균, 김창협의 賦작품은 양식상의 차이를 뛰어넘어 금강산 유람이라는 동일한 주제를 다루고 있기에 비교고찰이 가능한 작품이다. 허균은 친구인 권필과 이안눌을 통하여 당파를 서로 달리 했던 정철의 <관동별곡>을 입수할 수 있었다. 허균의 <동정부>는 정철의 <관동별곡>과 비슷한 양상을 보이는데, 주관적 감흥의 표출, 자연친화의 의지, 주제를 드러내는 방식 면에서 구체화되어 드러난다. 허균의 <동정부>는 賦라는 문체적 특성을 잘 살리면서 遊山의 흥취를 장편의 편폭 속에 담아 잘 드러나게 하고 있는데, 와유록에 수록되어 훗날 금강산여행을 떠나는 문인들에게 여행지침서로 되었다. 김창협은 21세의 나이에 금강산으로 떠날 때, 와유록을 가지고 올라 와유록에 수록된 허균의 <동정부>에 깊은 공감을 느끼고, 허균과 같은 제목으로 <동정부>를 지었는데, 이 작품은 김창협에게 기행체험을 적기 위한 참고문헌의 역할을 하였다. This article considers the relevance of three works such as Heo-Gyun's "Dongjungbu", Jung-Chul's "Gwandongbyulgok" and Kim,ChangHyup's "Dongjungbu(東征賦)". Sabu and Kasa have similarity on the rhetoric using, there are amplification, contraposition and quotation of classics. Because Jung-Chul's Kasa and Heo-Gyun, Kim,Chang-hyup's Bu handle the same subject―Geumgangsan tour, comparison of the three works is possible. Heo-Gyun acquired Jung-Chul's "Gwandongbyulgok" form his friends Gwon-Pil and Lee,An-nul. Heo-Gyun's "Dongjungbu" is similar to Jung-Chul's "Gwandongbyulgok" in style. It appears on expression of one's fun, will of natural affinity and the way of showing the subject. Heo-Gyun's "Dongjungbu" was collected in "Wayurok" and it became a trip indicator book to the writers who went to Geumgangsan. Kim,Chang-hyup felt deep sympathy in Heo-Gyun's "Dongjungbu" when he was 21 years old and made a composition in the same title. This work did the role of references to write a book of travel experience.
Choi, Yong-Woo;Kim, Sun-Mi;Jin, Xiong-Jie;Kwak, Ji-Yeong;Jung, Ju-Yang;Mun, Jun-II;Lim, Hong-Seok 중앙대학교 의과대학 의과학연구소 2012 中央醫大誌 Vol.37 No.1/2
The use of drug eluting stent (DES) has been increased in recent years because of its ability to inhibit neointimal proliferation. However, it may affect the normal healing process of the vessel wall after vascular injury and may be associated with coronary artery aneurysm formation in rare cases. We report a case of angiographic spontaneous resolution of coronary aneurysm developed after implantation of sirolimus-eluting coronary stent at the left anterior descending artery, diagonal branch, and left circumflex artery. But, there was discrepancy between intravascular ultrasound (IVUS) and coronary angiographic findings. IVUS demonstrated no significant shrinkage of maximal external elastic membrane (EEM) compared to earlier examination but echogenic tissue was filled in the free space between the stent and EEM at the stented segments where the angiographic resolution of the aneurysm occurred. We found out that an angiographic resolution of coronary aneurysm does not always guarantee real shrinkage of vessel wall, and fill-up of aneurismal space with thrombus or tissue could be an important mechanism of spontaneous resolution of DES related coronary aneurysm. Optimal treatment could be decided based on longer-term follow-up of patients which provide more accurate characterization of the consequences of DES-related aneurysm.