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Selective Nitration에 의한 3-Phenyl-4-(p-aminophenyl) Sydnone의 합성
안찬묵,윤병희,유학수 연세대학교 자연과학연구소 1986 學術論文集 Vol.16 No.-
3,4-Diphenylsydnone에 조건을 변화시켜가면서 니트로화반응을 시켰다. 반응은 4위치의 phenyl에서만 일어났으며, CH_3COOH-HNO_3조건하에서는 para에 그리고 H_2SO_4-HNO_3조건하에서는 ortho와 para에 진행하여 각각 니트로화합물을 얻었다. 생물학적으로 활성을 갖을 것으로 기대되는 아미노기를 갖는 sydnone유도체를 얻기 위하여, 이 니트로화합물을 Fe와 2%초산수용액에 의해 환원시켰다. 이들 생성물의 확인은 IR과 NMR로 검토하였으며 원소분석으로 확정지었다. Nitration of 3,4-diphenylsydnone was examined under various conditions. Reaction took place only at phenyl which was at 4-position of sydnone ring, and it was found that para-substituent was obtained under CH_3COOH-HNO_3 condition, whereas under H_2SO_4-HNO_3 condition ortho-and para-substituent was obtained. In order to obtain amino group containing sydnone derivative which was expected to be biologically active, this nitro compound was reduced by iron and 2% aqueous acetic acid. The products thus obtained were identified by IR and NMR spectroscopy and confirmed by elemental analysis.
김상수,원재희,안수용,김학기 강릉대학교 동해안지역연구소 2000 東海岸硏究 Vol.11 No.2
This experiment was carried out to investigate the effect of hardening materials, which were silicate complex fertilizer for the basal fertilization which contained 25percent SiO2, 45percent Ca, and 2percent Mg, Calcabon wettable powder for the foliar spray which contained 95percent calcite and 5percent surfactant, and Neo-Cal for the forliar spray which contained 17percent chelate calcium, to strengthen the stem hardness on lily(Lilium spp. 'Con Amore'). Among the treatments, the growth of the treatment of basal fertilizer on silicate complex was better than that of the other treatments. On the shear test of stem hardness, the hardness on the treatment of basal fertilizer on silicate complex was higher than that on the other treatments and the control was the lowest. And on the puncture test of stem hardness, the pattern among the treatments was He same on the shear strength. Mineral contents of leaf were higher than those of stem, and the contents of Ca and Si on the treatment of basal fertilizer on silicate complex were 1.07percent and 1.25percent, respectively, and these contents were higher than those of the other treatments.
난소절제후 Estrogen을 투여한 흰쥐 대동맥에서 Protein Kinase C-α와 Fas 발현의 변화
이왕수,이상엽,안지현,송영빈,김학진,이광재,유재격,김상욱,김태호,김치정,류왕성 중앙대학교 의과대학 의과학연구소 2001 中央醫大誌 Vol.26 No.3
Estrogen is believed to decrease coronary artery disease. Protein kinase C-α(PKCα)appear to be important in signal conduction pathways. Estrogen treatment increases catalytic activity of PKCα,and activation of PKCαcan modulate estrogen receptor levels and responsiveness. And it was reported that activation of PKC can protect cells from apoptosis induced by Fas ligation. But the beneficial effect of estrogen on PKCαwas not clearly demonstrated. The objective of this study was to evaluate the role of PKCαafter ovariectomy and estrogen therapy in rat aorta. The results were summarized as below: 1. The significant pathological changes were not observed in the rat aorta irrelevant to ovariectomy and estrogen therapy. 2. The expression of Fas was decreased in the aorta of estrogen-treated rats than that of ovariectomized rats without estrogen therapy. 3. Increased expression of PKCαwas more marked in the aprta of estrogen-treated rats than that of ovariectomized rat without estrogen therapy. In conclusion,PKCαmay be important in signal conduation pathway on the effect of estrogen. Activation of PKCαby estrogen reduced Fas expression, suggesting that PKCαactivation may play a role in protection against atherasclerosis. Further studies are needed to elucidate the role of PKCαafter estrogen therapy.
接木한 배나무의 樹齡에 따르는 燐酸의 消長에 대한 硏究
金晙敎,元世鎬,安鶴洙,鄭熙敦 건국대학교 1968 學術誌 Vol.9 No.1
It is very essential problem that the study on the translocation of nutritious substances between the scion and the stock when the seedlings were grafted. So the present experiments was carried out to investigate the behavior of phosphorous in the leaves, stems, new shoots and roots of scion and stock for the different age of tree after the pear-tree was grafted. For the study the seedlings were raised in the green-house of Agr. and Indus. college of Kon-kuk University. The results obtained from this work may be summarized as follows. ① The Phosphosrous contents in leaves, 2 to 3 year grafted-pear was slightly increased as compare with the same year-old stock. ② The phosphorous contents in the new shoots, one year grafted-pear was markedly decreased as compare with the same year-old stock. However 2 year-old galled-pear was gently increased. ③ The phosphorous contents in the stem and roots, there is no different between the grafted-pear (scion) and stock without relation to the age of tree.
정신보건법의 주요 쟁점 조항에 대한 선진국과의 사례 비교
홍진표,황순찬,박수빈,서동우,정은기,김진학,박종익,안주연,김수정,장홍석 大韓神經精神醫學會 2009 신경정신의학 Vol.48 No.2
Objectives The Mental Health Act is an initiative aimed at changing and shaping mental health services and protecting human rights of persons with mental disorders. Since the Mental Health Act was legislated in 1995, four amendments have been made according to the issues that arose from public concerns. However, there are still many debates about the human rights protection of the mentally iII. This study aimed to provide information regarding major aspects of the Mental Health Act by comparing them among several developed countries. Methods Current Mental Health Acts of the state of Michigan in the United States, Scotland in England, the state of Victoria in Australia, and Japan were reviewed. Issues regarding the Korean Mental Health Act were collected from seminar materials, news media contents, and mental health professionals Results The definition of subjects in Korean Mental Health Act was more inclusive than other countries and was derived from a medical classification of mental illness. Family members or guardians were granted important responsibilities for deciding the involuntary admission of mentally ill patients in Korea and Japan. In Western countries, Mental Health Review Tribunals or courts have the primary responsibility for important decisions about mentally ill patients. The regulation of immediate dis- charge after request by voluntarily admitted patients was not enacted in all countries except Korea. The mandatory procedure for involuntary admission in Western countries includes an individual case review with personal interview by a Mental Health Review Tribunal or court. Conclusion The Korean Mental Health Act appears to meet the basic standards of Guidelines from international organizations. Our traditional culture and inherent health systems seem to influence the legal regulation of mental health service and might be related to the problems of human rights protection of mentally ill patients in Korea.
Characteristics of HVPE Double Heterostructure Grown on the R-plane Sapphire Substrate
Hyung Soo Ahn,Sang Hyun Hong,Sun Lyeong Hwang,Hun Soo Jeon,Chung Hyun Lee,In Hye Heo,Eun Joo Kim,Young Hun Han,Kyung Hwa Kim,Min Yang,Suk Whan Kim,In Sung Cho,Won Taek Lim,Jae Hak Lee,Sang Kee Shee 한국표면공학회 2008 한국표면공학회 학술발표회 초록집 Vol.2008 No.-
Characteristics of Non-phosphor White-LED Grown by Mixed-source HVPE
Hyung Soo Ahn,Hun Soo Jeon,Sun Lyeong Hwang,Chung Hyun Lee,Sang Huyn Hong,In Hye Heo,Eun Joo Kim,Young Hun Han,Kyung Hwa Kim,Min Yang,Suck Whan Kim,In Sung Cho,Won Taek Lim,Jae Hak Lee,Sang Kee Shee 한국표면공학회 2008 한국표면공학회 학술발표회 초록집 Vol.2008 No.-
Lim, Soo,Shin, Hayley,Kim, Min Ju,Ahn, Hwa Young,Kang, Seon Mee,Yoon, Ji Won,Choi, Sung Hee,Kim, Ki Woong,Song, Jung Han,Choi, Sang Il,Chun, Eun Ju,Shin, Chan Soo,Park, Kyong Soo,Jang, Hak Chul Issued for the Endocrine Society by the Williams W 2012 The Journal of clinical endocrinology & metabolism Vol.97 No.1
<P>Recent studies suggest an association between vitamin D activity and cardiometabolic risk.</P>
Structural Phase Variation of InGaN Micro-structures Grown by Mixed-source HVPE
Hyung Soo Ahn,Chung Hyun Lee,Sun Lyeong Hwang,Hun Soo Jeon,Sang Hyun Hong,In Hye Heo,Eun Joo Kim,Young Hun Han,Min Yang,Kyung Hwa Kim,Suk Whan Kim,In Sung Cho,Jae Hak Lee,Sang Kee Shee 한국표면공학회 2008 한국표면공학회 학술발표회 초록집 Vol.2008 No.-