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무들의 워크숍 모듈을 활용한 웹 기반 동료 평가 시스템
안정은(Jung-Eun Ahn) 한국멀티미디어학회 2009 한국멀티미디어학회 학술발표논문집 Vol.2009 No.2
본 연구의 목적은 무들의 워크숍 모듈을 활용하여 웹 기반 동료 평가 시스템을 개발하고 현장에 적용해 보는 것이다. 연구의 목적을 달성하기 위해 동료 평가와 웹기반 동료 평가에 대한 기존 연구를 검토하고, 공개 소프트웨어인 무들의 워크숍 모듈을 분석하여 프로그래밍 교육에 적합한 형성적 동료 평가 모형을 개발하였다. 이를 고등학교 1학년 학생을 대상으로 현장에 적용한 결과 웹 기반 동료 평가 시스템이 학생들의 프로그래밍 언어 교육에 대한 흥미증진과 학습에 도움이 되는 것을 볼 수 있었다. 이를 통해 무들의 워크숍 모듈의 교육 현장에서의 활용가능성과 웹 기반 동료 평가 시스템의 교육적 효과에 대해서 확인 해 볼 수 있었다.
임신성 고혈압 한국인 환자에서 C677T Methylenetetrahydrofolate reductase 유전자 변이 , 호모시스테인 , 지질성분의 감수성 연구
안정자(Jung Ja Ahn),윤은혜(Eun Hye Yoon),서지현(Ji Hyun Suh),김영주(Young Ju Kim),이경순(Kyung Soon Lee),하은희(Eun Hee Ha) 대한산부인과학회 2001 Obstetrics & Gynecology Science Vol.44 No.11
Objective : The purpose was to test the hypothesis that the common missense mutation of 5,10-methylenetetrahydrofolate reductase(MTHFR) is more prevalent among preeclamptic women compared with control and also was to determine whether homocysteine and other lipid profile is changed in pregnant women with preeclampsia. Methods : We measured plasma homocysteine, cholesterol, HDL, LDL, triglyceride, apoprotein B, vitamin B12, and folate in 48 pregnant women without preeclampsia and 22 women with preeclampsia. And the MTHFR genotype was determined with a polymerase chain reaction/restriction fragment length polymorphism method. Results were analyzed with aX2 contingency table and T-test. Results : The prevalence of the MTHFR C677T mutation was not significantly different between the population studied. There was no significant difference in the level of plasma homocysteine, cholesterol, HDL, LDL, triglyceride, apoprotein B, and folate between controls and preeclamptic women. Furthermore, there was a significant difference in the level of plasma vitamin B12 between the population studied. Conclusion : These data suggest that the MTHFR C677T mutation is not a risk factor for preeclampsia in this population. Plasma homocysteine, cholesterol, HDL, LDL, triglyceride, apoprotein B, and folate level are not elevated in preeclamptic women. However, the plasma vitamin B12 level is elevated in preeclamptic women. Further studies are necessary to determine why the plasma vitamin B12 level is elevated in preelamptic women although they did not have vitamin drug.
황반박리가 동반된 열공망막박리의 재유착 후 황반부의 다국소 망막전위도 소견
안정현,장무환,경성은,Jung Hyun Ahn,M,D,Moo Hwan Chang,M,D,Seong Eun Kyung,M,D 대한안과학회 2008 대한안과학회지 Vol.49 No.3
`Purpose: To assess macular function by multifocal electroretinography after reattachment of macula-off retinal detachment and to evaluate relationship between duration of macular detachment (DMD) and functional recovery. Methods: Nineteen patients (19 eyes) with macula-off rhegmatogenous retinal detachment underwent pneumatic retinopexy or scleral buckling. Retinal reattachment was obtained successfully in all patients. Duration of follow-up of all patients is at least more than 12 months. Eyes were divided into 2 groups, corresponding to the DMD : Group A (within 7 days, n=9 eyes), Group B (>7 days, n=10 eyes). The amplitudes and implicit times of N1-wave and P1-wave of mfERGs in Area 1 (Ring 1), Area 2 (Ring 1+2) were compared between Group A and B and between Group A and control group. Results: The P1 amplitudes in Area 1 and 2 were significantly different between Group A and B (P<0.05). N1 amplitudes in Area 1 were significantly different between Group A and B (P<0.05), but no significant difference of P1 amplitudes in Area 2 between Group A and B (P>0.05). There were no significant difference of all data between Group A and control in Area 1 and 2 (P>0.05) The implicit times of N1, P1 were not significantly different between Group A and B. Conclusions: The DMD plays a key role in recovery of visual function after reattachment. The mfERG is a useful tool to evaluate the recovery of macular function after reattachment of macula-off retinal detachments.`
호모시스테인 혈중치의 증가가 자간전증 발병에 미치는 영향에 관한 연구
김은성 ( Eun Sung Kim ),김영주 ( Young Ju Kim ),이보은 ( Bo Eun Lee ),박혜숙 ( Hye Sook Park ),하은희 ( Eun Hee Ha ),장남수 ( Nam Soo Chang ),안정자 ( Jung Ja Ahn ),김종일 ( Jong Il Kim ),유한기 ( Han Ki Yu ) 대한산부인과학회 2003 Obstetrics & Gynecology Science Vol.46 No.2
Objective : The purpose of this study was, at the time of delivery, to determine if an elevated plasma homocysteine level is associated with the development of preeclampsia and to investigate whether 677 (C→T) polymorphism in the 5, 10-methylenetetrahydro
두개강 및 경부의 외상성 혈관 손상: 혈관내 치료의 유용성
최은완 ( Eun Wan Choi ),문태일 ( Tae Il Moon ),이정한 ( Jeong Han Lee ),추용식 ( Yong Sik Chu ),배진건 ( Jin Kun Bae ),김옥준 ( Ok Jun Kim ),최성욱 ( Seong Wook Choi ),안정용 ( Jung Yong Ahn ),윤평호 ( Pyeong Ho Yoon ),김상흠 ( Sa 대한외상학회 2004 大韓外傷學會誌 Vol.17 No.2
Background: The diagnosis and management of traumatic craniocervical vessel injuries in emergency department continue to be controversial. Direct surgical repair with parent artery preservation may be still difficult. The purpose of this report is to determine the safety and efficacy of endovascular therapy in the management of craniocervical vascular injuries. Methods: Fifteen patients with traumatic carotid and vertebral lesions were treated using therapeutic endovascular methods. Endovascular therapy was accomplished by implanting the balloons, porous or polytetrafluoroethylene (PTFE)-covered stent, and/or embolic materials including coils or glue. Results: All fistulas and pseudoaneurysms were successfully embolized with coils, glue, or stents. The parent arteries of all patients except two patients were preserved. The reasons of the parent artery sacrifice are that thrombus formation due to coil migration into the parent artery and the existing transection of the parent artery, respectively. No additional surgical procedures for vascular lesions were required. There were no delayed neurological or vascular complications and no lesions recurred during follow-up periods (mean 26.9 months). Conclusion: The goal of endovascular therapy is the selective elimination of the vascular pathology with the normal patency of the cerebral arteries. The author`s experience demonstrates that endovascular therapy using stents, balloons, and coils is both feasible and safe in treatment of the traumatic vascular injuries. Long-term follow-up review of these repairs will be necessary to provide a full evaluation of the safety and efficacy of these devices.
선행 제왕절개술 후 질식 분만의 성공인자 및 분만 진행 시간에 관한 연구
강은지 ( Eun Ji Kang ),이경아 ( Kyung A Lee ),박미혜 ( Mi Hye Park ),김영주 ( Young Ju Kim ),전선희 ( Sun Hee Chun ),안정자 ( Jung Ja Ahn ) 대한산부인과학회 2007 Obstetrics & Gynecology Science Vol.50 No.12
Objective: The purpose of this study was to determine which factors influence the likelihood of successful trial of labor, to evaluate the risks of VBAC and to evaluate the criteria of dystocia and the safety of VBAC. Methods: This retrospective study was peformed based on 61 pregnant women who succeeded VBAC, 37 VBAC failure women, 100 nulliparas and 100 multiparas. Results: In clinical characteristics, the parity, the number of previous cesarean section, gestational age, estimated fetal body weight by ultrasonography, and neonatal body weight had notable differences between the success and the failure group. In obstetric and historical factors, cervical effacement, dilation, and Bishop score at admission, spontaneous labor and method of induction of labor had differences. Among these factors, estimated fetal body weight by ultrasonography, cervical effacement and augmentation of labor using oxytocin were the most prognostic factors affecting the success of VBAC. In VBAC group, the duration of active-phase, second phase and total duration of labor were 313.5, 36.4 and 350.2 minutes, which were significantly shorter than nulliparas, but longer than multiparas. Conclusion: The trial of labor after cesarean section will decrease repeat operation, if it is performed under exact understanding of successful prognostic factors and the unique time length of labor. It will contribute to increase advantages for mother and economic benefits.
이명원,안정현,경성은,이동초,Myung Won Lee,Jung Hyun Ahn,Sung Eun Kyung,Dong Cho Lee 대한안과학회 2007 대한안과학회지 Vol.48 No.9
Purpose: The purpose of this case report is to describe accompanying ocular findings, especially optic neuropathy, in a patient with MELAS syndrome. Methods: A 10-year-old male patient who had lactic acidosis and neurological symptoms (loss of consciousness, vomiting, epilepsy, decreased vision, and constricted visual field), underwent a brain magnetic resonance imaging (MRI) scan and a molecular genetic analysis. Results: A diagnosis of cerebral infarction due to occlusion in the right posterior cerebral artery was made and confirmed by MRI scan. The diagnosis of MELAS syndrome was confirmed by performing molecular genetic analysis demonstrating the transformation of the mitochondrial tRNAleu(UUR) gene (MTTL1) A to G(3243). According to the ocular examinations, the patient??s left eye showed decreased vision, hemianopsia, relative afferent pupillary defects, mild swelling of optic nerve, and decreased amplitude on visual evoked potential exam. Conclusions: We encountered a case of MELAS syndrome involving optic neuropathy, which can (although rarely) occur with this syndrome. Therefore, in patients with an optic neuropathy of uncertain etiology, clinicians should consider performing comprehensive ocular exams and molecular genetic exams to rule out the possibility of genetic diseases.