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鷄胎眼球成長에 미치는 Mitomycin C의 影響에 關한 硏究
申潤澈,金武剛 충남대학교 의과대학 지역사회의학연구소 1984 충남의대잡지 Vol.11 No.1
In order to know about the effect of the mitomycin C on the eye ball growth in developing chick embryo, author injected mitomycin 8ug or 16 ug/2m ℓ/egg into the chorioallantoic membrane of 1, 000 eggs on the 6th day after initial day of the incubation. After then selected the 70 eggs per day among the incubated eggs at random from the 12th day to the 18th day with 48 hour intervals and brocked the incubated eggs in order to get the chick eye balls. The removed chick embryo eye balls were measured the weights with the Torsion balance and calculated the arithmetic mean, standard deviation, coefficient of variability, and the significant difference by the anayslis of variance. After then, analyzed the growth factor, that is, the theoretical growth quantity, growth rate, specific growth rate and the ratio of the growth quantity by the growth formula utilizing the arithmetic mean of the actually measured eye ball weigfits, and the coefficients of relative growth rates of the mitomycin C injected groups to the control group on the developing chick eye balls by the relative growth formula. The results obtained were summarized as follows; 1. Significant differences between the mean of the control group and injected groups, and between the 8 ug and 16ug injected groups were also significant at the 5 per cent level on the 12th day, and at the 0. 5 per cent level from the 14th day to the 18th day.. 2. The differences between the arithmetic means of the actually measured eye balls weights and growth quantities calculated by the growth formula were below the 0.352% error. 3. Growth rates were decreased in the control group and 16,ug injected group which was severe compare to the control group, and increased in the 8 ug injected group. 4. Specific growth rates were decreased in all three groups and the decrease rates were severe in order, control, 16u.g and 8ug. 5. Growth gradients of injected groups were larger compare to control group, and growth centers of injected groups were in the 18th day. 6. Relative growth rates of the injected groups were positive allometry (a>l) compare to the control group and the 16ug injected group was more positive allometry than 8ug injected group.
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신윤철 진주교육대학교 1996 論文集 Vol.40 No.1
The purpose of this study wart to review characteristics and changes of extra-curriculum, to establish firmly the position and role of it and to meek active operating method of it in elementary schools. The contents of this study was to search the educational significance of extra-curriculum, the position of it in the elementary school curriculum, the characteristics and features of it, and the changes of it and development course of extra-curriculum operation in elementary schools, The conclusions of this study was to find extra-curriculum to be an important educational activity operated more actively as an education for the whole man on equal and complementary cooperation with other subjects activity in elementary school curriculums. Extra-curriculum can upgrade democratic citizens' qualities, make good relationships among individuals, develop individuals' personalities and talents by providing a variety of chances for self-expression, and make good use of their spare moments by developing sound tastes and literary cultures through desirable group activities.
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신윤철,지현근 대한흉부심장혈관외과학회 1996 Journal of Chest Surgery Vol.29 No.5
69세 남자 환자가 운동성 호흡곤란으로 입원하였다. 폐관류 스캔에서 좌측폐의 완전 환류결손을 보 였고, 컴퓨터 단층 촬영 혈관조영술에서는 좌측폐동맥의 급작스러운 혈류차단의 소견이 나타났다. 환자 는 외상이나 하지의 이상 증상 그리고 색전증등의 과거력은 없었다. 원인 불명의 만성 폐색전증이라는 진단 하11 흥골 정중절개후 체외순환하에서 주폐동맥을 차단하고, 폐동맥을 절개한 후 색전재거술을 시 행하였다. 술후 폐관류 스캔과 컴퓨터 단층 촬영 혈관조영술에서 거의 정상적인 좌측 폐동맥의 환류가 관찰되 었다. 환자는 별다른 합병증 없이 술후 9일째 퇴원하였다.
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신윤철,박계현,김수현,김동중,김동진,김준성,임청 대한흉부외과학회 2015 Journal of Chest Surgery Vol.48 No.1
Background: This study aimed to investigate sternal healing over time and the incidence of poor sternal healing inpatients undergoing coronary artery bypass graft (CABG) surgery using bilateral internal thoracic arteries. Methods:This study enrolled 197 patients who underwent isolated CABG using skeletonized bilateral internal thoracic arteries(sBITA) from 2006 through 2009. Postoperative computed tomography (CT) angiography was performed on all patientsat monthly intervals for three to six months after surgery. In 108 patients, an additional CT study was performed24 to 48 months after surgery. The axial CT images were used to score sternal fusion at the manubrium,the upper sternum, and the lower sternum. These scores were added to evaluate overall healing: a score of 0 to1 reflected poor healing, a score of 2 to 4 was defined as fair healing, and a score of 5 to 6 indicated completehealing. Medical records were also retrospectively reviewed to identify perioperative variables associated with poorearly sternal healing. Results: Three to six months after surgery, the average total score of sternal healing was2.07±1.52 and 68 patients (34.5%) showed poor healing. Poor healing was most frequently found in the manubrium,which was scored as zero in 72.6% of patients. In multivariate analysis, the factors associated with poorearly healing were shorter post-surgery time, older age, diabetes mellitus, and postoperative renal dysfunction. Inlater CT images, the average sternal healing score improved to 5.88±0.38 and complete healing was observed in98.2% of patients. Conclusion: Complete sternal healing takes more than three months after a median sternotomyfor CABG using sBITA. Healing is most delayed in the manubrium.
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신윤철,임효상 한국정보과학회 2022 정보과학회 컴퓨팅의 실제 논문지 Vol.28 No.4
We propose a technique exploiting the longest common subsequence (LCS) for detecting repetitive motion where the starting position of the motion is not known. Compared to the existing techniques, which only handle predefined motions with no noise, our technique considers the situation where motions are not predefined or known in advance, and the data include noises. We focus on the fact that most repetitive exercise motions include the same start and end patterns and use LCS to detect such repetitive patterns. Through experiments with real motion data, we show that our proposed technique can detect repetitive motions with high accuracy. 최장 공통 부분 수열(Longest Common Subsequence, LCS)을 이용하여 운동 동작 동영상에서 시작점이 불분명한 반복 동작을 검출하는 방법을 제안한다. 기존에 연구들은 운동 동작이 미리 정해져 있거나 데이터에 노이즈가 없는 상황만을 고려하였다. 본 논문은 운동 동작이 미리 정의되어 있지 않고 데이터에 노이즈가 존재하는 상황을 가정한다. 이러한 상황을 다루기 위해 대부분 운동의 시작 동작과 끝 동작이 같다는 것에 착안하여 LCS를 이용하여 반복 패턴을 검출한다. 실제 데이터를 활용하여 실험을 수행하고 제안하는 방법이 반복 패턴을 높은 정확도로 검출할 수 있음을 보인다.
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