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서현주 ( Hyun Ju Suh ) 한국지식경영학회 2014 지식경영연구 Vol.15 No.1
Absorptive capacity is an ability to acquire, assimilate, transform, and apply external knowledge. Since the objectives of communities of practice(CoPs) are to share task-related knowledge and to apply it to operations, individual absorptive capacities of CoP members are one of the most important success factors of CoPs. The study examined the structural relationship among three groups; antecedents of absorptive capacity, absorptive capacity, and the performance of CoPs. The findings are as follows; Goal interdependence, reciprocal altruism, coordination mechanism and socialization mechanism had significant and positive effects on absorptive capacity. In addition absorptive capacity had significant and positive effects on goal attainment and knowledge application of CoP.
Leptospermum Scoparium 수증기 추출물인 마누카 기름의 항균효과
이계주(Gye Ju Rhee),정경수(Kyeong Soo Chung),김은희(Eun Hee Kim),서현주(Hyun Joo Suh),홍남두(Nam Doo Hong) 대한약학회 1997 약학회지 Vol.41 No.1
The antimicrobial activity of Manuka oil, a steam distillate from Leptospermum scoparium, was investigated, and it''s MIC against ten kinds of microorganisms was determined. MICs against bacteria and fungi were measured by means of both two-fold dliution method and agar plate two-fold dilution method, respectively. MICs of Manuka oil against Staphylococcus aureus KCTC 1916 and Micrococcus luteus KCTC 1915, gram-positive microrganisms, were identical as 3.05 mcg/ml, while it''s antibacterial activity against gram-negative microrganisms such as Pseudomonas aeruginosa KCTC 2513, Escherichia coli KCFC 1682, Klebsiella pneunioniae KCTC 2001 or Proteus vulgaris KCTC 2433 was negligible(MIC: > or = 1000 mcg/ml), suggesting a high susceptibility of gram-positive bacteria to Manuka oil. In addition, MIC against Aspergillus niger KCTC 6077 was 24 mcg/ml. and that against the other fungi, Tricophyton mentagrophytes KCTC 1374 and Candida albicans KCTC 1940 was > or + 1000 mcg/ml. When Manuka oil ointment was used in combination with other drugs. i.e.. gentamycin sulfate, chlotrimazol and hydrocortisone acetate, and diphenhydramine HCl and hydrocortisone acetate. it''s antibacterial activity against Staphylococcus aureus KCTC 1916 was higher than Manuka oil ointment or other drugs alone. In conclusion, Manuka oil possesses a selective antibacterial activity against Staphylococcus aureus KCTC 1916, and can be used as a potent antibacterial agent against it.
이계주(Gye Ju Rhee),서현주(Hyun Joo Suh),이덕금(Duck Geun Lee),박종범(Jong Bum Park),신광현(Kwang Hyun Shin),황성주(Sung Joo Hwang) 대한약학회 1998 약학회지 Vol.42 No.2
In order to ameliorate disadvantages of buccal ointments and mucoadhesive tablets used for the treatment of aphthosis, a thin mucoadhesive patch containing triamcinolone acetonide was designed and evaluated for the pharmaceutical properties. The adhesive gel layer consisting of Noveon AA-1, hydroxypropylcellulose-M and ethylcellulose N 100, and the protective gel layer of ethylcellulose N 100, Eudragit RSPO and castor oil have been formulated and various properties such as viscosity of drug gel layer, thickness, in vitro adhesion time, adhesive strength, surface pH, content uniformity and drug release are tested. The mean viscosity of drug-containing gel layer was found to increase with increasing amount of Noveon OAA-1 or hydroxypropylcellulose-M. The optimum formulation showed the thickness of 171 mcm, surface pH of 4.6, in vitro adhesion time of 8 hours and adhesive strength of 272.7g/sheet. The drug content of each patch was relatively homogeneous with the value of 273+/-6.77g. Drug release study showed that compared to mucoadhesive tablet, the patch showed a faster drug release. Drug release was delayed by hydroxypropylcellulose-M, but not by ethylcellulose N 100. The patches prepared were nonirritant and the muco adhesion was better than the commercial product (AftachR) on the market. Based on these results, this mucoadhesive patch is expected to be an effective dosage form for the treatment of aphthosis.