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토끼에서 근육주사시 입자 크기에 따른 amoxicillin의 비교 약물동태학
박승춘,윤효인,오태광,장범수,배순이,조준형,정상희,이내경,김민규 충남대학교 수의과대학 동물의과학연구소 1998 動物醫科學硏究誌 Vol.6 No.-
To investigate the pharmacokinetic difference between the two amoxicillin (AMX) particles in rabbits after intramuscular injection (i.m.), both of AMX-S (particle size: 10 ㎍) and AMX-L (particle size: 100 ㎍) were injected into New Zealand White rabbits (1.2±0.3 ㎏) at a dose rate of 10 ㎎/㎏ of body weight. In this study, serum AMX concentrations were detected by microbiological assay with E. coli BE 1186 which shows high antibiotic sensitivity. After i.m. administration, AMX-S and AMX-L were best fitted as 1-compartment model with the absorption and elimination phase. The biological half-life (T_1/2, _k10) of AMX-S is 4.06±1.09 h and that of AMX-L 4.76±0.69 h. The serum maximal concentration time (T_max) of AMX-S and AMX-L were 0.88±0.17 h and 0.77±0.11 h, respectively. Maximal AMX concentration (C_max) (AMX-S: 5.71±0.62 ㎍/㎖, AMX-L: 5.04±0.25 ㎍/㎖) in serum showed a significant difference (p<0.05). In terms of bioequivalance, however, there was no difference between the two AMX's after i.m. injection in the basis of C_max and AUC.
Quantitation of Formate in Plants and Its Enhancement in Response to Environmental Stresses
Kim, Jae-Kwang,Cho, Myoung-Rae,Baek, Hyung-Jin,Ryu, Tae-Hun,Kim, Jung-Bong,Kim, Jun-Heong,Kim, Myong-Jo,Yu, Chang-Yeon,Fukusaki, Ei-Ichiro,Kobayashi, Akio The Korean Society for Applied Biological Chemistr 2007 Journal of Applied Biological Chemistry (J. Appl. Vol.50 No.4
A solid-phase microextraction and gas chromatography-mass spectrometry utilizing $^{13}C$-formate as an internal standard for the determination of formate was proved to be applicable as a reliable quantitative method in several plants. We were the first to discover that trees contain larger pool sizes of formate than herbs. Our data also showed that the formate level of the leaves increased after the methanol-spraying, suggesting that methanol oxidation could convert formaldehyde into formate. In addition, drought and chilling led to the increase of endogenous formate in Arabidospsis thaliana. These results confirmed that formate is a universal stress signal in plants.
Application of Linear Goal Programming to Large Scale Nonlinear Structural Optimization
Jsng Tae Sa,Mohamed E.M.EI-Sayed,Kim Ho Ryoung 한국전산구조공학회 1992 한국전산구조공학회논문집 Vol.5 No.1
본 논문은 수식화의 특이성 때문애 구조 최적화 문제에 거의 사용되지 않고 있는 선형 goal programrrung을 대규모 비선형 구조 최적화에 용용하는 방법올 제시한다. 이 방법은 다기준 최적화의 도구로 사용 되는데 그 까닭은 goal programming 이 목적합수와 제한조건둥을 정의하는데 있어서 발생하는 난점 들올 제거해 주기 때문이다. 이 방병은 비선형 goal 최적화 문제톨의 해톨 얻기 위해서 유한요소해석, 선형 goal programming 기볍 ‘ 그리고 계속적인 선형화 기법을 이용한다. 즉, 대규모 비선형 구조 최적화 문제를 비선형 goal programming 형태로 전환시키는 일반적인 수식화 방법을 제시하고, 얻어진 비선형 goal 최적화 문제 를 풀기 위한 계속적인 선형화 방법에 대해서도 논의한다. 얼계도구로서 이 방법의 유효성올 논증하기 위하여 10‘ 25 및 200트러스의 사례를 가지고 용력채한조건들의 최소무게 구조 최적화 문제에 대한 해를 모색하며 이 쓸 다른 연구결과와 비교검토한다. This paper presents a method to apply the linear goal programming, which has rarely been used to the structural opimization problem due to its unique formulation, to large scale nonlinear structural optimization. The method can be USl:최 as a multicriteria optimization t∞1 since goal programming removes the difficulty in defining an objective function 킹ld constraints. The method u풍5 the finite element analysis, 파lear go머 pr야~amming techniques and sιcessive linearization to obtain the ∞lution for the nonlinear goal optimization problems. The general formulation of the structural optimization problem into a nonlinear goal pr'야;:-ramming form is presented. The suα- 않sive linearization method for the nonlinear goal optirnization problem is disωS않d. To demonstrate the validity of the method, as a design t。이, the minimum weight structural optirnization problems with stress constraints are solved for the ca않s of 10, 25 and 200 trus똥s and compared with the results of the other works.
암생존자의 암검진 미수검 관련 요인분석: 국민건강영양조사(2007-2012년) 자료 이용
양송이 ( Song Ei Yang ),한남경 ( Nam Kyung Han ),이선미 ( Sun Mi Lee ),김태현 ( Tae Hyun Kim ),정우진 ( Woojin Chung ) 한국보건행정학회 2015 보건행정학회지 Vol.25 No.3
Background: The aim of the current study was to investigate the factors related to the non-practice of cancer screening in cancer survivors, who are at high risk of developing second cancers. Methods: This study is a cross-sectional analysis of 1,125 cancer survivors ≥19 years old who participated in the Korean National Health and Nutrition Examination Surveys IV and V (2007-2012). A Rao-scott chi-square test and a survey logistic regression analysis were employed respectively to analyze the difference of cancer survivors in cancer screening by each characteristic and the factors related to the non-practice of cancer screening in cancer survivors. Results: Among total subjects, 33.5% did not participate in cancer screening in the last two years. Results from a fully adjusted logistic model showed that the non-practice of cancer screening in cancer survivors was significantly associated with variables such as sex, age, marital status, education level, monthly income, and drinking a alcoholic beverage Specifically, the odds ratio of non-practice of cancer screening was higher in males than in females, in the younger group than in older group, in the group with no spouse than in the group with a spouse; in a group with a low level of education than in a group with a high level of education; in a group with the lowest income level than in a group with the other levels of income; or in non-drinkers than in drinkers. Conclusion: Health policies to reduce the non-practice rate of cancer screening in cancer survivors should be designed and implemented with close attention to cancer survivors’ socio-economic characteristics such as sex, age, marital status, education, and income, along with a health behavioral characteristic as drinking.