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융모성질환에 있어서 혈청 α-FP 및 β-hCG에 관한 연구
오성택,윤영돈 대한산부인과학회 1990 Obstetrics & Gynecology Science Vol.33 No.2
전남대학교 의과대학부속병원 산부인과에서 내원한 임신 519주사이의 정상임부 80명과 무월경 주수가 정확한 융모성질환 38예의 각 주수별 혈청 α-FP, β-hCG 및 β-hCG/α-FP치를 비교한 결과 다음과 같은 결론을 얻었다. 1. 혈청 α-FP치에서는 융모성질환이 정상임부보다 8주이후에서 통계학적으로 의의있게 낮았다(p $lt; 0.01). 2. 혈청 β-hCG치는 융모성질환이 정상임부보다 임신 8~11주에서는 통계학적으로 유의한 차가없고, 6주,7주 및 12주이후에서 의의있게 높았다(P$lt;0.05). 3. β-hCG/α-FP치는 융모성질환이 정상임부보다 임신 6주이후에서 통계학적으로 의의있게 높았다(P$lt;0.05). 이와같은 결과로 임신 6주이후 혈청 α-FP을 혈청 β-hCG와 같이 측정하므로써 융모성질환의 진단에 도움을 줄수있을 것으로 사료되었다. This study was performed for the early diagnosis of trophoblastic disease (TRD) by the measurement of serum -fetoprotein (α-FP) and -human chorionic gonadotropin (β-hCG). Serum α-FP, β-hCG levels were respectively measured by enzyne immunoassay (EIA), radioimmunoassay (RIA). The 38 cases with TRD were compared with 80 cases in normal pregnancy at 5- to 19 weeks of gestational period by measurement of α-FP, β-hCG and β-hCG/α-FP. The following results were obtained: Serum α-FP levels of cases with TRD were significantly lower than those of normal pregnancy at 8- to 19 weeks of gestational period (p $lt; 0.01). Serum β-hCG levels of cases with TRD were significantly higher than those of normal pregnancy at 6th, 7th and after 12th gestational week, while not at 8- to 11 weeks of gestational period (p $lt; 0.05). β-hCG/α-FP ratio of cases with TRD were significantly higher than those of normal pregnancy after the 6th gestational week (p $lt; 0.05). In conclusion, it is suggested that the measurement of serum α-FP and β-hCG after 6th gestational week may be valuable for the early diagnosis of TRD.
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오성택 중앙선거관리위원회 2018 『選擧硏究』 Vol.1 No.9
The turnouts of the 19th National Assembly election and the 18th presidential election were 2.52% and 7.07%, respectively. Since then, the overseas turnouts for the 20th National Assembly election and the 19th presidential election have been low at 2.58% and 8.31% respectively. Since the adoption of the overseas elections, the turnouts in all four elections were recorded in only single digits. As a result, it has been pointed out that the purpose of introducing the overseas election system has been less meaningful, and some who were disappointed with high cost of election expenditure and low turnout argued over uselessness of it. According to the current Public Official Election Act, overseas Koreans have to visit foreign diplomatic missions in order to vote, contributing to poor voter turnout. At the time of enrollment of overseas voters, legal and institutional improvements were made to allow enrollments by family by proxy, by e-mails, and in Koreandominated areas. However, there was a limit to improving the participation rate. Therefore, the institutional strategies to be introduced in order to improve the participation rate in overseas elections are as follows. First, as a measure to improve the turnout rate of overseas elections, it is necessary to introduce an online voting system based on a block chain and postal voting system and to provide voting rights for regional assembly members, transportation convenience, and voting convenience for voters who return to home country. Second, as a measure to increase the application․registration rate of overseas voters, it is necessary to allow for the extension of proxy acceptance and the introduction of fax reception. 제19대 국회의원선거와 제18대 대통령선거의 재외선거 투표율은 각각 2.52%, 7.07%를 기록했다. 그 이후 치러진 제20대 국회의원선거와 제19대 대통령선거의 재외선거 투표율은 각각2.58%, 8.31%로 저조했다. 재외선거가 도입된 이후 치른 전체 4번의 선거에서 모두 한자리수에 불과한 투표율을 기록하였다. 이로 인해 재외선거제도 도입의 취지가 퇴색되었다는 지적이끊이지 아니하고 낮은 투표율과 고비용의 선거비용 지출에 실망하여 재외선거 무용론이 제기되기도 하였다. 현행 『공직선거법』에 따르면 재외국민은 직접 재외공관을 방문해야만 투표를 할 수 있도록함에 따라 저조한 투표율 기록에 기여했다. 재외선거인 등록신청 시에는 가족 대리 신청, 전자우편과 한인 밀집 지역 출장 접수 등을허용하는 법적 ․ 제도적 개선을 하였지만 저조한 참여율 개선에는 한계가 있었다. 따라서 재외선거 참여율 제고를 위하여 우선적으로 도입할 제도적 장치로는 다음과 같다. 첫째, 재외선거 투표율 제고 방안으로서 블록체인에 기반을 둔 온라인 투표시스템 도입, 지역구국회의원선거의 투표권 부여, 교통편의의 제공, 우편투표의 도입, 귀국투표자의 투표편의를제공화하여야 할 것이다. 둘째, 재외선거인의 신청 ․ 신고 등록률 제고 방안으로 대리접수 확장과 팩스접수 도입을 허용하여야 할 것이다.
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3 차원 회로 장치 제작을 위한 FDM 기반의 통합 시스템 개발
오성택,이인환,김호찬,조해용 대한기계학회 2014 大韓機械學會論文集A Vol.38 No.8
It is possible to fabricate a three-dimensional (3D) shape using the solid freeform fabrication (SFF) technology. However, there are several problems in applying conventional SFF technologies to the direct manufacturing of a product. Hence, multimaterial SFF is gaining attention. Moreover, a 3D circuit device that is different from a conventional two- dimensional PCB can also be fabricated using multimaterial SFF. In this study, a hybrid system using fused deposition modeling and direct writing was designed for 3D circuit device fabrication. 임의형상 제작기술을 이용하면 원하는 형상을 빠르게 제작할 수 있다. 하지만 임의형상 제작기술을 직접 제품을 생산하기 위한 제조기술에 적용하기 위해서는 문제점들이 있다. 이에, 하나의 대안으로써 다중재료 임의형상 제작기술이 주목 받고 있다. 특히 다중재료 임의형상 제작기술을 이용하면 기존의 2 차원 PCB 와는 다른, 회로 소자의 배열 및 외부 형상의 제약이 적은 3 차원 회로 장치를 제작 할 수 있다. 본 연구에서는 3 차원 회로 장치 제작을 위하여 FDM 방식과 직접주사 방식을 통합한 장치를 설계하고, 이 장치를 이용하여 3 차원 회로장치를 제작하였다. 즉, LED 와 조도센서를 이용한 3 차원 회로 장치를 제작하여 작동을 확인하였으며, 자동화된 3 차원 회로 장치의 제작을 위한 임의형상 제작 기술과 직접주사 기술이 통합된 시스템 개발에 대한 기초연구를 수행하였다.
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6 cm 이상의 난소 유피낭종절제술에 있어서 골반경수술법과 개복수술의 비교 고찰
오성택,이지영,김은미 대한산부인과학회 1998 Obstetrics & Gynecology Science Vol.41 No.1
Traditionally laparotomic cystectomy has been performed for large ovarian dermoid cyst, because the spillage of content was inevitable and the complete removal of spilled material in pelvic cavity was difficult. Therefore the method of pelviscopic cystectomy was modified to minimize the spillage of content for dermoid cyst over 6 cm in our hospital. The purpose of this study is to evaluate the efficacy of this pelviscopic cystectomy compared with traditional laparotomic cystectomy. Dermoid cysts over 6 cm were diagnosed by ultrasonography, MRI, CT and diagnostic laparoscopy. The duration of operation, postoperative recovery time and duration of hospital stays in 45 patients treated by modified pelviscopic cystectomy were compared with those in 27 patients treated by laparotomic cystectomy. The mean duration of operations was 1.37 ± 0.7 hours in laparotomy and 1.59 ± 0.4 hours in pelviscopy, so any significant difference was not found between these two groups. Postoperative complication due to spillage of content was not noticed in either laparotomy or pelviscopy. Recovery of gastrointestinal peristalsis was observed at postoperative 1.9 ± 0.8 days in laparotomy and 1.0 ± 0.5 days in pelviscopy. Therefore peristalsis of gastrointestinal tract was more rapidly recovered in pelviscopy than in laparotomy(p<0.01). Dis-appearance of major postoperative pain was observed on 2.7 ± 0.8 days after operation in laparotomy and 1.3 ± 0.4 days in pelviscopy, so postoperative pain was disappeared more rapidly in pelviscopy(p<0.01). The mean duration of hospital stay was 4.2 ± 0.4 days in pelviscopy, and it was significantly shorter than 5.5 ± 0.7 days in laparotomy(p<0.01). Therefore it was suggested that pelviscopic cystectomy, if it is modified to minimize peritoneal spillage of contents, was better than laparotomy even in dermoid cyst over 6 cm.
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