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발치와의 혈소판 농축 혈장과 골 이식술 시행시 골 형성에 대한 임상 및 조직병리학적 연구
전영태,정진형,이종헌,임성빈,Jeon, Young-Tae,Chung, Chin-Hyung,Lee, Chong-Heon,Lim, Sung-Bin 대한치주과학회 2001 Journal of Periodontal & Implant Science Vol.31 No.2
The socket preservation procedure was a simple and effective technique, and has better prognosis for implantation. The socket preservation usually used barrier membrane in combination with/without alloplastic bone materials. A recently study had shown that a regenerative therapy to tooth extraction utilizing growth factors made better results. Platelet-rich plasma was clinically easy method that acquired the growth factors, and is known that accelerated new bone formation and mineralization of bone graft materials. The purpose of this study was to evaluate clinical and histopathologic results which occur following socket preservations using platelet-rich plasma and bovine bone powder. Twelve patients who required extraction of one or more teeth for implantation at the department of periodontics in Dankook University Dental Hospital were selected. Extraction sockets were treated by using platelet-rich plasma and bovine bone powder. 3 months later, we observed clinical and histopathological results as follows: 1. Internal vertical measurement was an average of 7.33mm preoperatively and statistically significantly decreased to an average of 1.42mm postoperatively(p<0.05). 2. External vertical measurement was an average of 3.33mm preoperatively and decreased to an average of 2.75mm postoperatively; therefore there was no significant difference. 3. Horizontal measurement was an average of 7.75mm preoperatively and statistically decreased to an average of 6.08mm postoperatively(p<0.05). 4. Osteocyte-like cells and new bone formation connected with bovine bone grafts were observed in histopathologic examination. This study implied that platelet-rich plasma and bovine bone powder grafts were effective treatment for socket preservation and regeneration of severe bony defect made by implantation failure.
국내 기업의 리더십 유형이 직무만족과 조직몰입에 미치는 영향에 관한 연구
전영태(Jeon, Young-Tae) 국제관광산업학회 2015 국제관광산업연구 Vol.8 No.1
The most crucial component of every organization being human in order for the organizational objective to be attained each organizational will be dependent upon the individual s ability. erefore with uncertainty and complexity in radically changing modern society to meet the individual desire for change at higher level a new texible and proactive leadership style is needed. is empirical study has made an analysis on the relationship between job satisfaction and organizational commitment of transformation and transactional leadership among the subjects at small and medium-sized frms located in Kwang-Ju and South Jeolla province. e purpose of this study is to lay out an approach on the role of a leadership for the organizational objective, the impact of leadership on the relationship between leadership styles and organizational performance. Firstly, the analysis on the relationship between leadership styles and job satisfaction has shown that, for the individuals to feel job satisfaction in his workplace, the leader should have a strong conviction with his self-assuredness, faith, and moral fairness, granting each member contdence, stimulating them to achieve higher-level desire so as to have strong motivation for their loy goals. In the meanwhile, if the leaders and team players are rewarded, the higher the level of their job satisfaction and performance will become. Secondly, this also had investigated the studies on leadership styles and organizational commitment and found that the modern organization members showed lower gures in organizational commitment, moral uprightness, and aective & emotional attachment. Also it was proposed that the transactional leadership styles and it hard to have the members committed to the organization. e arts of compromise, obedience and negotiation will be key elements for this leader. erefore the leaders creative and reformative ability will have each member to have autonomy and sense of independence, leading them to develop themselves open-minded. irdly, a good leader should know how to work on individual characteristics, for each individual may have dierent impact on the performance. It was discussed that he now only has to know how to handle their vision development encouraging them to better produce rationalized and creative perspective, but to decide if they need reward intervention in-between.
‘단통법’ 제정 과정 분석: Kingdon의 다중흐름모형을 활용하여
전영태 ( Young Tae Jeon ),이용규 ( Yong Kyu Lee ) 중앙대학교 국가정책연구소 2019 국가정책연구 Vol.33 No.4
본 연구는 「단말기 유통구조 개선에 관한 법률」의 제정 과정에 대해 Kingdon이 제시한 다중 흐름 모형을 적용하여 분석하였다. 특히, 정책문제, 정책대안, 정치의 흐름이 결합하여 정책의 창이 열리고, 이것이 정책 산출물로 이어지는 동태성을 설명하고자 하였다. 그 결과, 다음과 같은 결론을 얻게 되었다. 첫째, 현재 우리나라 정부는 표면적으로는 시장에 막강한 권력을 행사하는 것으로 보이지만, 대기업이 시장뿐만 아니라 정책과정에도 커다란 영향을 미치고 있었다. 둘째, 단통법에서는 거시적 정책리더(대통령과 청와대)와 미시적 정책리더(국회의원)가 상이하였다. 그리고 이들이 추구하는 목표점도 각기 달랐다. 셋째, 단통법 제정과정에서 이통사와 제조사는 자신의 이익을 지켜냈고, 이와는 대조적으로 판매상은 도산하는 점포들이 증가하였고, 국민도 가계에서의 통신비 비중은 감소하지 않았다. 넷째, 현 단통법에 대한 개정 요구가 있으므로, 통신서비스가 5G로 획기적으로 변화하는 2020년이 단말기 보조금 정책을 개선할 시점이다. 상기와 같은 상황은 기존 이론이나 경험과 크게 배치하지 않으나, 본 연구에서는 기존의 연구에서 언급되지 않았던 거시적 정책리더, 미시적-형식적 정책리더, 미시적-실질적 정책리더가 명확히 존재하는 현상을 확인할 수 있었다. The purpose of this study is to analyze the process of enacting the "Act on Improving the Distribution Structure of the Terminal" by applying the Kingdon’s Multiple Streams Model. In particular, it is to review how the policy issues, policy alternatives, and political trends were combined to open a window of policy and produce policy output. As a result, the following conclusions were obtained: First, Korea’s government now appears to be exerting enormous power on the market, but large corporations were having a huge impact on the policy process as well as the market. Second, macro-policy leaders (president and presidential office) and micro-policy leaders (parliamentary members, government agency and large corporation) played an important role in the process of making law. And the goals they pursued were different, the first one to pass the law, and the second to gain profit. Third, mobile network operators and manufacturers protected their own interests, in contrast, numerous terminal stores closed. The proportion of telecommunications costs to households did not decrease at all. Fourth, when telecommunication services drastically change to 5G as they are now in 2019, the handset subsidy policy should change accordingly. Although the above situations do not differ significantly from existing theories or experiences, this study clearly showed that macro-policy leaders, micro-formal policy leaders, and micro-substantial policy leaders were present that were not mentioned in previous studies.