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성인 코눈물관 부분폐쇄에서 실리콘관 삽입술 후 마이토마이신 점안의 효과
정진구,안민,Jin Gu Jeong,Min Ahn 대한안과학회 2012 대한안과학회지 Vol.53 No.9
Purpose: To compare the result of mitomycin C (MMC) instillation after silicone intubation in partial nasolacrimal duct obstruction in adults according to duration of instillation. Methods: An instillation of 0.04% MMC eyedrops was performed on 61 eyes of 38 patients diagnosed with partial nasolacrimal duct obstruction. The clinical result of patient groups, classified according to duration of MMC eyedrops instillation, was analyzed prospectively. The patients groups was as follows: no MMC eyedrop instillation (group A), 1 week of MMC instillation (group B), 2 weeks of MMC instillation (group C), and 3 weeks of MMC instillation (group D). Results: Among all patients, 50 eyes (81.9%) showed improved symptoms. Fifteen eyes (71.4%) in group A, 8 eyes (72.7%) in group B, 13 eyes (86.7%) in group C and 14 eyes (100.0%) in group D had a successful outcome. The success rate was observed in groups D, C, B, and A, in descending order, which was statistically significant (p = 0.025). Conclusions: Silicone intubation is an effective treatment option for partial nasolacrimal duct obstruction in adults and MMC eyedrop instillation may improve silicone intubation results. J Korean Ophthalmol Soc 2012;53(9):1231-1235
코눈물관 부분 폐쇄에서 실리콘관 삽입술 전후의 눈물주머니조영술 비교
정진구,안민.Jin Gu Jeong. MD. Min Ahn. MD 대한안과학회 2011 대한안과학회지 Vol.52 No.1
Purpose: To compare the dacryocystographic results before and after silicone tube intubation in partial nasolacrimal duct obstruction. Methods: Dacryocystography was performed on 33 eyes of 17 patients diagnosed with partial nasolacrimal duct obstruction. The anteroposterior (AP) diameters and the mediolateral diameters of the nasolacrimal ducts intubated at the operation were measured by dacryocystography, before the operation and after silicone tube removal. Results: The mean AP, mediolateral diameter and length of nasolacrimal duct in the group who demonstrated improvement after the operation was 2.32 mm, 1.39 mm, and 17.14 mm before the operation, and 2.40 mm, 1.77 mm, and 17.38 mm after the operation, respectively. The mean AP, mediolateral diameter and length of nasolacrimal duct in the group who demonstrated no symptomatic improvement was 2.06 mm, 1.28 mm, and 17.42 mm before the operation, and 2.75 mm, 1.99 mm, and 18.03 mm after the operation, respectively. The alteration of the nasolacrimal duct size in the group with successful postoperative results compared with unsuccessful postoperative results showed no significant difference. Conclusions: The nasolacrimal duct showed expansion in size based on dacryocystographic results after silicone tube intubation in partial nasolacrimal duct obstruction. However, the operation results and the alteration of the nasolacrimal duct size based on dacryocystographic results demonstrated no accordance. J Korean Ophthalmol Soc 2011;52(1):1-6
메티실린 감수성 표피포도알균(MSSE) 각막염과 메티실린 내성 표피포도알균(MRSE) 각막염의 비교 연구
정진구,권의용,조남천,유인천,Jin Gu Jeong,Eui Young Kweon,Nam Chun Cho,In Chon You 대한안과학회 2011 대한안과학회지 Vol.52 No.8
Purpose: To investigate the clinical features and treatment outcomes between methicillin-sensitive Staphylococcus epidermidis (MSSE) and methicillin-resistant Staphylococcus epidermidis (MRSE) keratitis groups. Methods: A retrospective analysis of case series was conducted of all patients with keratitis caused only by Staphylococcus epidermidis from January 1997 through December 2008. Sex, age, history of trauma, systemic disease, previous ocular history, antibiotic sensitivity test results, and treatment outcomes were evaluated. Patients were categorized into two groups as MSSE and MRSE according to methicillin-sensitivity result, and a comparative analysis was performed. Results: There were no significant differences in clinical features, such as risk factors or size or location of keratitis between the two groups. All MSSE and MRSE isolates were sensitive to vancomycin, moxifloxacin, and levofloxacin. All MSSE and 17%, 50%, 52%, and 57% of MRSE isolates were sensitive to cephalothin, norfloxacin, ciprofloxacin, and erythromycin, respectively (p < 0.05). There was no significant difference in visual acuity between the two groups. Conclusions: All MSSE and MRSE isolates were sensitive to vancomycin and to third- or fourth-generation fluoroquinolones In addition, approximately 50% of MRSE isolates were sensitive to norfloxacin and ciprofloxacin. There were no significant differences in clinical features of keratitis caused by MSSE versus those of MRSE isolates. Both keratitis groups had relatively good visual prognoses. J Korean Ophthalmol Soc 2011;52(8):930-935
정진구 ( Jin Goo Jeong ) 대진대학교 독서문화연구소 2009 독서문화연구 Vol.8 No.-
독서경영은 개인 독서 학습이 조직에 확산되고, 공유되어 조직의 변화와 혁신을 가져오는 경영관리 방식이다. 본 연구에서 기업 경영의 전략의 하나로 도입하여 활용하고 있는 독서경영의 사례를 조사하고 분석한 결과 독서경영이 기업문화에 미치는 영향은 다음과 같다. 첫째, 구성원의 자기 주도적 학습문화가 형성된다. 둘째, 구성원의 지식과 아이디어가 공유된다. 셋째, 구성원 개인과 조직의 경쟁력이 향상된다. 넷째, 기업의 실적이 향상된다. Reading management is a way of management by which personal reading needs are extended to and shared by organization, thereby bringing change and innovation to the organization. In this study, the cases for employing reading management as one of the business management strategies are studied. The influence of reading management on corporate culture can be summarized as follows. First, self-directed learning culture is formed among members. Second, the members can share their knowledge and ideas with each other. Third, each member and organization can have improved competitive power. Forth, the company can have an increase in its achievements.
무인 이동 개체의 경로 생성을 위한 레이저 스캐너와 비전 시스템의 데이터 융합을 통한 장애물 감지
鄭珍久(JinGu Jeong),洪錫敎(Sukkyo Hong),左東京(Dongkyoung Chwa) 대한전기학회 2008 전기학회논문지 Vol.57 No.7
This paper proposes object detection algorithm using laser scanner and vision system for the path planning of autonomous mobile agents. As the scanner-based method can observe the obstacles in only two dimensions, it is hard to detect the shape and the number of obstacles. On the other hand, vision-based method is sensitive to the environment and has its difficulty in the accurate distance measurement. Thus, we combine these two methods based on K-means algorithm such that the obstacle avoidance and optimal path planning of autonomous mobile agents can be achieved.