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노승재,박성찬,최재희,이준상,Dong Woon Lee,홍창원,한경수,박형철,손대경,오재환 대한대장항문학회 2020 Annals of Coloproctolgy Vol.36 No.1
Purpose: This study aimed to assess the evaluation of clinical outcomes and consequences of complications after cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) for the peritoneal carcinomatosis (PC) from colorectal cancer. Methods: A total 26 patients underwent CRS and HIPEC for PC from colorectal cancer between March 2009 and April 2018. All the patients underwent CRS with the purpose of complete or near-complete cytoreduction. Intraoperative HIPEC was performed simultaneously after the CRS. Mitomycin C was used as chemotherapeutic agent for HIPEC. Results: Median disease-free survival was 27.8 months (range, 13.4–42.2 months). Median overall survival was 56.0 months (range, 28.6–83.5 months). The mean peritoneal cancer index (PCI) was 8.73 ± 5.54. The distributions thereof were as follows: PCI <10, 69.23%; PCI 10–19, 23.08%; and PCI ≥20, 7.69%. The completeness of cytoreduction was 96.2% of patients showed CC-0, with 3.8% achieved CC-1. The mean operation time was 8.5 hours, and the mean postoperative hospital stay was 21.6 days. The overall rate of early postoperative complications was 88.5%; the rate of late complications was 34.6%. In the early period, most complications were grades I–II complications (65.4%), compared to grades III–V (23.1%). All late complications, occurring in 7.7% of patients, were grades III–V. There was no treatment-related mortality. Conclusion: Although the complication rate was approximately 88%, but the rate of severe complication rate was low. In selective patients with peritoneal recurrence, more aggressive strategies for management, such as CRS with HIPEC, were able to be considered under the acceptable general condition and life-expectancy.
사외이사 임면이 기업지배구조와 주가에 미치는 영향에 관한 연구
노승재 한국지식정보기술학회 2012 한국지식정보기술학회 논문지 Vol.7 No.6
This study examines the effects of corporate governance on Korean firm values. In particular, with regard to the quality of corporate governance structure, I look into the stock price impacts of the appointment or dismissal of outside directors. I used event study and t-test methods were used for the empirical tests on the effects of the announcement effects of the appointment and dismissal of outside directors. As for the announcement effect of the appointment or dismissal of outside directors, I found that the stock price reaction depended on the quality of corporate governance structure, and further that the dismissal of outside directors, especially for firms with inferior corporate governance structure has a negative impact on stock prices, possibly due to the information asymmetry problem.
국내외 기관투자가의 투자지분 증가가 주가에 미치는 영향 : 기업지배구조 등급별 연구를 중심으로
노승재,김홍배 한국산업경제학회 2012 산업경제연구 Vol.25 No.1
본 연구는 국내외 기관투자가들의 투자지분 확대가 주가에 미치는 영향을 기업지배구조를 4등급으로 분류하여 살펴보았다. 사건연구방법론(event study)을 이용하여 지분확대 공시에 따른 주가반응의 차이를 분석하였고 실증분석 방법으로 기업지배구조 그룹별 CAR분석과, T-test분석을 사용하였다. 연구결과 국내 기관투자가들이 상대적인 정보의 우위를 바탕으로 투자지분 확대공시에 대해 주가의 비정상수익률이 외국인 기관투자가들에 비하여 높다는 사실과 국내 기관투자가, 외국인 기관투자가들은 정보비대칭성 문제를 줄이기 위하여 기업지배구조가 좋은 기업에 투자를 하며 기업지배구조가 좋은 기업들은 투자지분 확대에 대하여 높은 비정상수익률을 나타낸다는 것을 밝혀냈다. 이러한 연구결과는 정보 불균형 문제가 외국인 기관투자가 뿐 아니라 국내 기관투자가에게도 적용될 수 있다는 것을 의미한다. 국내외 기관투자가들은 기업지배구조의 개선을 추구하기 보다는 좋은 기업지배구조를 가지고 있는 기업에 투자를 한다는 사실은 기업지배구조 연구에 시사점을 제공할 것으로 본다. This study examines the effects of equity ownership increase by institutional investors’ on corporate governance and stock price In particular, with regard to the quality of corporate governance structure, I looked into the stock price impacts of domestic and foreign institutional investors’ the equity ownership changes. The event study and t-test methods were used for the empirical tests. This study found that increase in Korean domestic institutional equity ownership has higher CARs than foreign equity ownership increase, partly attributable to an information advantage of domestic investors. In addition, it was found that firms with better corporate governance, CARs are more positive with regard to equity ownership increases by both domestic and foreign investors. We can extend the research. Both domestic and foreign investors’ behavioral pattern difference can be studied depending on corporate governance structures.
노승재(Sung-Jae Rowe),전영선(Young-Sun Jeon) 한국관세학회 2007 관세학회지 Vol.8 No.2
Besides its seeming purport as a tour business in itself, North Korea tourism has a significance as a channel of reconciliation and cooperation between South and North Korea. The reason for the turnover in North Korea's negative perception of the tour business is that the project is the most practical choice for North Korea in its internationally isolated status. Its perceptional change began to be sensed in the fact that North Korea made various efforts in developing a diversity of products and inducing tourists in the 2002 Arirang Festival. A series of events since that such as Arirang tour in 2005, pilot tours to Gaeseong and Mount Baekdu, business expansion in the tour zone of Mount Ceumgang are brightening prospects of exchange between South and North Korea through tour business. Revitalizing the tour projects between South and North further, however, definitely requires political stability in the Korean Peninsula and also needs cutting down of travel costs, developing various tour packages, and improving tour infrastructures such as lodging and human resources.
외국인 기관투자가 지분변동 공시가 기업지배구조와 주가에 미치는 영향에 관한 연구
노승재(Sung-Jae Rowe),이갑수(Gap-Soo Lee) 한국관세학회 2011 관세학회지 Vol.12 No.3
This study examines the effects of corporate governance and stock price reaction by foreign institutional investors’ equity ownership change. In particular, with regard to the quality of corporate governance structure, I looked into the stock price impacts of foreign institutional investors’ the equity ownership changes. The event study and t-test methods were used for the empirical tests on the effects of foreign institutional investors’ public announcement on equity ownership changes. I found that firms with better corporate governance, the CARs are more positive with regard to equity ownership increases by foreign investors, partly attributable to an information asymmetry. We can extend the research. For example, we can examine in depth any difference in information advantage between domestic and foreign investors. Both investors’ behavioral pattern difference can be studied depending on corporate governance structures.
EU 회원국 근로자들의 근무강도 및 작업환경이 직무만족에 미치는 영향
노승재(Sung-jae, Rowe),최향석(Hang-sok, Choi),임효창(Hyo-chang, Lim) 한국통상정보학회 2006 통상정보연구 Vol.8 No.4
The present Study investigated on effect of working time and physical work environment on job satisfaction, and is based on a representative survey carried out in the 15 European Union Member States in 2,000 on behalf of the European Foundation for the Improvement of Living and Working Conditions by Infratest Burke Sozialforschung and a consortium of national fieldwork institutes. In the course of the survey, a total of 21,703 people drawn from the economically active populations in the 15 countries were questioned about their working time, overtime, weekend work, physical work environment, social support of supervisor and co-worker and job satisfaction. Regression analysis and subgroup analysis were employed to examine the hypotheses. It was found that weekend work, overtime and physical work environment associate negatively with job satisfaction. Social support of supervisor and co-worker moderated only relation between working time and job satisfaction. The results provide support for prior quantitative studies partly. Based on these significant research findings, theoretical implications were discussed.