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RISS 인기검색어
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- 저자 : 나성윤(Seong Yoon Na) (검색결과 3 건)
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무기인산염과 탈단백우골의 혼합사용이 골재생에 미치는 효과
나성윤,권영혁,박준봉,허익,정종혁,Na, Seong-Yoon,Kwon, Young-Hyuk,Park, Joon-Bong,Herr, Yeek,Chung, Jong-Hyuk 대한치주과학회 2007 Journal of Periodontal & Implant Science Vol.37 No.1
This study was performed to evaluate the effect of deproteinized bovine bone mineral soaked in inorganic polyphosphate on bone regeneration in the calvaria of rabbit in the procedure of guided bone regeneration with titanium reinforced expanded polytetrafluoroethylene(TR-ePTFE) membrane. The rabbits were divided into four groups. Control group used TR-ePTFE membrane filled with de-proteinized bovine bone mineral, experimental group I used TR-ePTFE membrane and deproteinized bovine bone mineral soaked in 4% inorganic polyphosphate, experimental group II and III used TR-ePTFE membrane and deproteinized bovine bone mineral soaked in 8% or 16% inorganic poly-phosphate respectively. After decortication in the calvaria, GBR procedure was performed on 8 rabbits with only TR-ePTFE membrane or titanium reinforced ePTFE membrane filled with deproteinized bovine bone mineral soaked in inorganic polyphosphate. The animals were sacrificed at 4 weeks, and 8 weeks af-ter the surgery. Non-decalcified specimens were processed for histologic analysis, and new bone for-mation was assessed by histomorphometric as well as statical analysis. 1. Both control group and experirrental group dermnstrated increasing of new bone formation until 8weeks. 2. At 8 weeks, experimental group I and group II showed the significant difference compared to control group in new bone formation. Especially experimental group II showed the most in-creasing of new bone formation. 3. The higher concentration of inorganic polyphosphate filled, the more volume of bone formation pro-moted, but experimental group III did not reveal significant difference compared to contol group. 4. Deproteinized bovine bone mineral did not resorbed at all until 8 weeks. These results suggest that inorganic polyphosphate has a promoting effect on bone regeneration. possibly by enhancing osteoconductivity of the carrier and by increasing osteoinductivity of the defected alveolar bone tissue, but not as we respect.
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행인 추출물이 고포도당 상태의 치은섬유아세포 및 치주인대세포에 미치는 영향
나성윤,권영혁,박준봉,허익,김성진,Na, Seong-Yoon,Kwon, Young-Hyuk,Park, Joon-Bong,Heer, Yeek,Kim, Sung-Jin 대한치주과학회 2000 Journal of Periodontal & Implant Science Vol.30 No.1
The purpose of this study was performed to evaluate the effect of Armeniacae Semen extracts on human gingival fibroblasts and periodontal ligament cells in vitro. A experiment was done to evaluate the effect of Armeniacae Semen extracts in high glucose media. $400mg/d{\ell}$ glucose was added to the culture media of all groups. In control group, the cells($4.5{\times}10^4cells/ml$) were cultured with Dulbecco's Modified Eagle's Medium contained with 10% fetal bovine serum. In experimental groups, Armeniacae Semen extracts was added to the above culture media at the final concentrations of $1{\mu}g/m{\ell}$(Test group 1) and $l0{\mu}g/m{\ell}$(Test group 2). Then each group was tested for the rate of cell proliferation at 1, 2, 5 days, protein levels at 2, 5 days, and alkaline phosphatase activity at 2, 5 days. The results were as follows ; 1. Under the high glucose condition 1)As centration of Armeniacae Semen extracts increased, the rate of cell proliferation decreased significantly in test group 2 at 5 days in human gingival fibroblasts, but increased significantly in test group 2 at 5 days in human periodontal ligament cells(P<0.05). 2)In human gingival fibroblasts, test group 2 showed significantly decreased protein levels as compared to control group at 5 days. In periodontal ligament cells, test group 1 and 2 showed not significantly increased protein levels as compared to control group at 2, 5 days(P<0.05). 3)Alkaline phosphatase activity of human periodontal ligament cells increased as concentration of Armeniacae Semen extracts increased. The test group 1and 2 showed significant increase as compared to control group at 5 days(P<0.05). From the above results, Armeniacae Semen extracts appeared to enhance cellular activities including the rate of cell proliferation, protein levels and alkaline phosphatase activity of selectively human periodontal ligament cells in high glucose media. This study suggests that Armeniacae Semen extracts seem to be able to subside the inflammation of periodontal tissue and regenerate the destructed periodontal tissue.
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부동산중개소 선택기준이 고객만족, 신뢰, 애호도에 미치는 영향에 관한 연구
박영근(Park Yeung Kurn),김판준(Pan Jun Kim),나성윤(Seong Yoon Na) 한국마케팅과학회 2006 한국마케팅과학회 학술대회 발표 논문집 Vol.- No.-
부동산시장의 개방과 전산정보화, 증권화, 다양화는 부동산중개업계에서도 생존과 고객 욕구를 충족시키기 위한 새로운 변화를 요구 받고 있다.<BR> 본 연구는 부동산 중개시장의 경영환경변화의 대응전략의 일환으로 중개소의 선택기준을 발굴하고 이러한 선택기준이 고객만족, 신뢰 및 애호도에 미치는 영향을 분석하여 향후 부동산중개소의 경쟁력 강화를 위한 마케팅전략 및 시사점을 제시함에 그 목적이 있다.<BR> 부동산중개서비스가 필요한 고객은 부동산중개소를 선택하기 위하여 무엇을 고려하고 평가하는지의 선택기준과 서비스품질의 만족도 관리 및 신뢰형성을 위한 고객관계관리는 부동산중개소 관리자가 중개소의 경쟁력 제고와 지속적인 성과를 발생시키기 위한 차별화 된 마케팅 전략을 수립하는데 매우 중요한 요소이기 때문이다.<BR> 연구 결과는 요약하면 다음과 같다. 부동산중개소 선택기준은 고객만족과 신뢰에 직접적인 영향을 주는 것은 나타났으며, 고객만족과 신뢰가 높으면 재이용의도와 구전효과가 높다는 것을 밝혔다. 결론적으로 부동산중개소의 경쟁력 제고와 성장을 위한 요건으로 부동산중개소가 선택받기 위한 중개소의 우호적인 이미지 제고와 지속적인 거래관계 유지를 위한 고객관계관리라 할 수 있겠다. The real estate brokerage business is required to adopt itself to the new environment in order to satisfy the customers" needs because of the opening of the real estate market and its computerization, and diversification.<BR> The purpose of this research is to suggest the marketing strategy and suggestions for strengthening the competitive power of the future real estate agency after finding the standard the choice and analyzing how this standard of the choice affect customer satisfaction, trust, and loyalty as a part of correspondence strategy for the change of the real estate business environment.<BR> It is important for the customers who need the real estate brokerage service to know the standard of the real estate agency choice criteria for choosing the real estate agency and customer relationship management for managing the level of the service quality satisfaction. And, it is very important factor for the real estate agency managers to establish discriminative marketing strategy for improving the competitive power and continuous outcome.<BR> The summary of this research is fellowing.<BR> It is founded that the real estate agency choice criteria affect customer satisfaction and trust directly and, the intention of the reuse and the effect of information by word of mouth are high when the customer satisfaction and trust are high. In conclusion, the important matter for improving the competitive power of the real estate agency is the favorable image promotion of the agency to be selected as the real estate agency and the customer relationships management for continuing the transaction relationships maintenance.
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