정형외과 영역의 Ceftriaxone(Rocephin^(�)) 임상효과

김남현,이재철 최신의학사 1987 最新醫學 Vol.30 No.8

중도절단모형이 지수분포의 척도모수추정에 미치는 영향

김남현,Kim, Namhyun 한국데이터정보과학회 2014 한국데이터정보과학회지 Vol.25 No.2

수명시간 분석에서 자주 이용되는 분포 중 하나는 지수분포이다. 본 논문에서는 임의중도절단 자료의 분석에서 중도절단모형이 지수분포의 모수추정에 어떤 영향을 주는지에 대해서 알아보았다. 고려한 중도절단모형은 Koziol-Green 모형과 일반화 지수분포 모형으로 이들은 의미상 매우 다른 모형이다. 모의실험을 통해서 살펴본 결과 중도절단모형이 모수의 평균적인 추정값에는 크게 영향을 주지 않는다고 보이나 가정한 모형이 실제의 모형과 차이가 심하게 나는 경우 추정량의 MSE가 커지는 경향을 보였다. The simplest and the most important distribution in survival analysis is the exponential distribution. In this paper, we investigate the influence of the random censorship model on the estimation of the scale parameter of the exponential distribution. The considered random censorship models are Koziol-Green model and the generalized exponential distribution model. Two models have different meanings. Through the simulation study, the averages of the estimated values of the parameter do not show big differences, however the MSE of the estimator tends to be bigger when the supposed model is significantly different from the true model.

동결 건조된 동종골(Tutoplast)의 혼합이식을 이용한 요추 후외방 유합술의 유용성

김남현,이환모,석경수 대한척추외과학회 1998 대한척추외과학회지 Vol.5 No.2

Study Design : A retrospective study was made of patients undergoing posterolateral fusion of the lumbar spine. Objectives : To compare the clinical outcomes of the patients who underwent posterolateral fusion of the lumbar spine with commercially available allogeneic bone graft with those patients in a similar consecutive control group who underwent posterolateral fusion of the lumbar spine with autogenic bone graft and to determine whether the commercially available allogeneic bone is useful for posterolateral fusion of the lumbar spine. Summary of Literature Riview : Major differences exist in the ability of an allogeneic bone graft to regenerate a viable cellular network as compared to an autogenic bone graft. This is related to the immunologic response of the host to the foreign bone. The fusion rate of deep freezing allogeneic bone graft was reported as 80-100%. Materials and Methods : Seventy-nine patients with spondylolisthesis treated with decompression, fixation with pedicle screws and posterolateral fusion were retrospectively reviewed. Nineteen patients (group 1) were treated with commercially available allogeneic bone (Tutoplast) graft mixed with autogenic bone and the remaining 60 patients (group 2) were treated with autogenic bone graft. Operating time, amount of transfusion, duration of hospital stay, symptom improvement, fusion rate, duration of fusion, and complications were studied. Results : There were no significant differences between the two groups in terms of duration of hospital stay, amount of transfusion, symptom improvement, and complications. However, there were significant differences between the allogeneic and autogenic groups in terms of operating time (212.3 versus 230.9 minutes), fusion rate (36.8% versus 98.3%), and duration of fusion (10.2 versus 6.4 months), respectively. Conclusions : Commercially available allogeneic bone is less useful for posterolateral fusion of the lumbar spine

급성 근골격질환에서 Piroxicam의 비경구투여에 대한 임상적 고찰 : An Open Non Comparative Trial

김남현,한수봉,오국환 최신의학사 1987 最新醫學 Vol.30 No.7

리더-구성원 교환관계, 조직몰입, 조직시민행동의 관계

김남현,김종우,이지우 한국산업경영학회 2002 한국산업경영학회 발표논문집 Vol.2002 No.4

NiCuZn 페라이트계를 이용한 SoP의 이종접합에 관한연구

김남현,김경남 한국표면공학회 2012 한국표면공학회 학술발표회 초록집 Vol.2012 No.5

골관절염 및 류마치스 관절염의 약물요법에 있어서 Trilisate^(�)의 임상효과

김남현,권순원,조순호 최신의학사 1983 最新醫學 Vol.26 No.5

초기 중국이민의 교섭과 조약의 체결 -Burlingame조약과 1880년 중미조약을 중심으로-

김남현 한국세계문화사학회 2011 세계 역사와 문화 연구 Vol.0 No.25

The demand for labor, on the heels of the discovery of a gold mine in 1848 and the transpacific railway construction in 1865, led to the increase in the number of Chinese immigrants. The Burlingame Treaty in 1868 was hailed by the American government as the demand for labor and trade soared. In 1870's, however, the soaring unemployment rate and the wage cut, fueled by the drastic increase in the number of Chinese immigrants and the sluggish economy, had been a major issue As a result, Californians started to shift the blame to Chinese Immigration, tying to discriminate, restrict and oppose their immigration. The Burlingame Treaty resulted in the unexpected boost in Chinese immigration and other related problems, therefore flustering the American government. Since they were clearly aware that The Burlingame Treaty was a stumbling block to a number of regulations that were meant to discriminate, restrict and oppose the immigration, the working-class population in the West coast insisted that the treaty be either abolished or revised. This eventually led to a newly revised Burlingame Treaty mediated by the Angell Committee in 1880. Unlike other treaties and agreements, the 1868 Burlingame Treaty was based on reciprocity, however, this agreement also implied a contradicting American policy on China. When the treaty was initially signed, it assured China of free trade and unrestricted Chinese immigration. However, as the agreement turned out to be a major factor creating a number of problems, they eventually passed a bill restricting the immigration like other immigration related regulations in America. Thus, Californians, with the help of the local ordinance, tried to solve the problems caused by Chinese immigration. These attempts were first witnessed at a mining district and they were accepted as a legitimate regulation both by the city and the state. They started to handle this Chinese immigration by levying a poll tax, a mine worker tax, a fisherman tax and a washerman license tax, not to mention the toughened regulations on Chinese immigrants' business activities. The State of California even tried to legislate to prohibit further Chinese immigration. The local movements to regulate Chinese immigration were seen through the mass protests, reports and riots, however, the federal government found them all unconstitutional, preventing their official attempts from taking into effect. As these local attempts to discriminate, regulate and restrict the immigration failed, the opposing Californians then appealed to the federal government. This Burlinegame Treaty was not only a major obstacle in controlling the Chinese immigration, but the Chinese workers' right to be treated equally in America. However, the opposing groups were guaranteed a full support from the ever-growing labor associations and took advantage of the political turmoil in between the Senate and the House in the late 19th century. As this situation turned the West coast states into a favorable voting constituency, the politicians started to defend the regulations to control the Chinese immigration. Therefore, the opposing groups demanded that the Burlingame Treaty be either abolished or revised and continued their attempts to prohibit Chinese immigration. The Congress then filed a report on this issue and later legislated based on the report. The president of the US initially rejected this bill, but the Republican Party considering various issues sent Angell Committee to China in 1880 in order to revise the agreement, a new treaty between American and China in 1880. The newly revised treaty enabled America to restrict Chinese immigration for a certain period of time on condition that Chinese immigration is clearly against the nation's interest and the public order. Based on this treaty, America places a ban on Chinese immigration in 1882. The Burlingame Treaty managed to serve its purpose of reciprocity in immigration and commerce, however, it was eventually revi...

집단유능성, 집단동태성 및 집단성과간의 관계

김남현,박봉규,류태모,정동섭,송경수 한국인사조직학회 2001 한국인사ㆍ조직학회 발표논문집 Vol.12 No.-

영주 힐링관광도시 개발 방안

김남현 한국관광서비스학회 2014 한국관광서비스학회 학술대회 Vol.- No.24