에듀테인먼트를 이용한 모바일 학습 컨텐츠 개발

박미정 ( Mijung Park ),안치현 ( Chi-hyun Ahn ),우종정 ( Jongjung Woo ) 한국정보처리학회 2007 한국정보처리학회 학술대회논문집 Vol.14 No.1

국내에서 통신 산업과 게임 산업은 다른 기술 산업 분야에 비해 급격하게 성장 하였으며, 현재 국내 산업 분야에서 큰 부분을 차지하고 있다. 통신과 게임 산업의 성장은 교육 분야에 새로운 학습 컨텐츠를 요구하고 있다. 그에 따라 모바일 기기를 이용한 컨텐츠 개발이 이루어 졌으나 통신비용이 높고 학습자의 흥미유발을 고려하지 않았다. 따라서 본 논문은 소켓 통신을 사용하여 요금을 절감하고, 학습자가 흥미롭게 학습 할 수 있도록 에듀테인먼트 요소를 적용한 휴대폰 기기용 학습 컨텐츠를 제안한다.

Effectiveness of canalicular laceration repair using monocanalicular intubation with Monoka tubes

Lee, Hwa,Chi, Mijung,Park, Minsoo,Baek, Sehyun Blackwell Publishing Ltd 2009 Acta ophthalmologica Vol.87 No.7

<P>Abstract.</P><P>Purpose: </P><P>This study aimed to evaluate the clinical efficacy of canalicular laceration repair using monocanalicular intubation with Monoka tubes.</P><P>Methods: </P><P>A total of 36 single lacerated canaliculi were repaired using monocanalicular intubation with Monoka tubes, without mucosal anastomosis of the canaliculi, and were retrospectively reviewed. Demographic information, injury locations, associated ocular injuries, complications and outcomes were analysed.</P><P>Results: </P><P>Mean patient age was 34 years (range 1–64 years). Tubes were removed at a mean of 4.2 months (range 3–6 months). There were 26 lower canalicular lacerations (72%) and 10 upper canalicular lacerations (28%). Overall, 34 of 36 cases (92%) showed improvement in symptoms and exhibited positivity on the dye disappearance test at 4–12 months after the procedure (mean 7.8 months). In total, 21 patients (58%) achieved complete success, 13 patients (36%) achieved partial success and two patients (6%) suffered surgical failure. Complications were seen in five cases and included two early tube protrusions, two punctal slits and one punctal granuloma.</P><P>Conclusions: </P><P>Monocanalicular intubation with Monoka tubes leads to successful outcomes without significant complications and offers an alternative to bicanalicular intubation in the treatment of monocanalicular lacerations.</P>

아포지단백 E 유전자 변이와 백내장의 관련성

지미정,임정수,백혜정,Mijung Chi,Jung Soo Im,Hae Jung Paik 대한안과학회 2011 대한안과학회지 Vol.52 No.4

Purpose: To evaluate the association of apolipoprotein E (APOE) polymorphism and cataracts in the Korean population. Methods: The present research included participants from a population-based study in Incheon, Korea. A sample of 126 adults genotyped for polymorphisms of APOE underwent a medical interview, an eye examination which included visual acuity testing, slitlamp cataract evaluation and fundus examination. The APOE polymorphism was determined using a polymerase chain reaction method. Results: Eighty-eight participants (69.8%) were diagnosed with cataracts or had undergone cataract surgery in 1 or both eyes, and 38 participants (30.2%) demonstrated no signs of cataract. The frequencies of the APOE genotypes and alleles were not significantly different from the cataract and the control group. APOE ε2 carriers were less likely to have cataracts than non-ε2 carriers with an odds ratio of 0.367 which was almost statistically significant with the multiple logistic regression analysis (p = 0.052). Conclusions: There was no significant correlation of APOE genotype and cataracts. However, a slight negative association of APOE ε2 and cataracts were found in the Korean population. J Korean Ophthalmol Soc 2011;52(4):420-428

360°로 발생한 결막의 출혈림프관확장증

박수진(Su Jin Park),지미정(Mijung Chi) 대한안과학회 2020 대한안과학회지 Vol.61 No.3

목적: 결막의 출혈림프관확장증이 360°로 연결된 원주형으로 발생하였다가 저절로 회복된 환자 1예를 보고하고자 한다. 증례요약: 44세 여자 환자가 내원 1일 전에 발생한 우안의 충혈을 주소로 내원하였다. 특별한 전신 질환 기왕력 및 외상력은 없었고, 내원 전 약 3회에 걸쳐 호전과 재발이 반복되었다. 시력저하, 통증 등의 동반 증상은 없었고 혈액검사 및 안와 전산화단층촬영, 혈관조영검사상 특이 소견은 없었다. 세극등현미경검사상 우안 각막윤부로부터 약 6 mm 떨어진 위치의 안구결막하에 360°로 연결된 원주형의 림프관확장이 관찰되었고, 림프관 내 출혈이 동반되었다. 또한 좌안의 4시, 8시 방향 안구결막하에 불규칙한 국소 림프관확장이 관찰되었다. 약 2주 후 출혈이 호전되었으나 투명한 확장된 림프관은 세극등현미경검사 및 전안부 빛간섭단층촬영을 통해 여전히 관찰할 수 있었다. 결론: 구결막 림프관의 해부학적 구조를 따라 360°에 걸쳐 발생한 출혈림프관확장증을 국내 최초로 보고하는 바이다. Purpose: We report a case of hemorrhagic lymphangiectasia of the conjunctiva with a 360° connected circumference, which recovered spontaneously. Case summary: A 44-year-old female patient presented with congestion of the right eye 1 day prior to her visit. There was no history of any systemic disease or trauma, but she had experienced relapses of the same episode three times before the visit. There were no accompanying symptoms such as decreased vision or pain. Blood analysis, orbital computed tomography, and angiographic findings showed no remarkable finding. Slit lamp examination showed circumferential lymphatic dilatation extending 360° under the conjunctiva of the eye at a distance of about 6 mm behind the limbus of the right eye, which was accompanied by intralymphatic bleeding. Irregular local lymphatic dilatations were observed on the bulbar conjunctiva at 4 and 8 o clock of the left eye. The bleeding spontaneously resolved in about 2 weeks, but the translucent enlarged lymphatic vessels were still observed on slit lamp examination and anterior segment optical coherence tomography. Conclusions: This is the first reported case of hemorrhagic lymphangiectasia involving 360° of the bulbar conjunctiva in Republic of Korea.

눈꺼풀에 발생한 발진성 연모 낭종 1예

이종환,지미정.Jong Hwan Lee. MD. Mijung Chi. MD. PhD 대한안과학회 2014 대한안과학회지 Vol.55 No.1

Purpose: Eruptive vellus hair cysts (EVHC) are benign lesions that affect the pediatric population and are rarely seen congenitally or in young adults. EVHCs are small, cystic papules that usually occur on the chest and proximal extremities. EVHCs of the eyelids have been reported infrequently. We experienced a case of solitary EVHC that developed on the eyelid in a middle-aged male. Herein, we present our case with a brief review of the literature. Case summary: A 44-year-old male presented with a history of an asymptomatic, palpable mass in the right upper eyelid that had been slowly growing for 2 years. Physical examination revealed non-tender, firm and round mass in right upper eyelid. Computed tomography scan of the orbit showed a 7.0 × 9.0 × 9.5 mm-sized focal bulging contour in the right upper eyelid. The patient underwent sub-brow incision and excisional biopsy of the eyelid mass. Histopathological examination revealed a 7.0 × 6.0 × 4.0 mm-sized cystic structure lined by squamous epithelium containing laminated keratinous materials and multiple vellus hair shafts. There was no local recurrence during the postoperative follow-up. Conclusions: We experienced a rare case of EVHC that developed on the eyelid. Based on our experience, EVHC should be considered when determining an eyelid mass, especially around hair follicles. J Korean Ophthalmol Soc 2014;55(1):119-123

급성 부비동염 및 안와 연조직염 소견을 보인 안와, 부비동 미만성 거대 B세포 림프종 1예

안종호(Jong Ho Ahn),지미정(Mijung Chi) 대한검안학회 2017 Annals of optometry and contact lens Vol.16 No.4

Purpose: To report a case of paranasal diffuse large B-cell lymphoma with orbital invasion that presented with acute sinusitis and orbital cellulitis. Case summary: A 78-year-old man presented with right periorbital swelling that stated 2 days after after gingival abscess treatment 2 weeks ago. Under suspicion of acute sinusitis and orbital cellulitis, systemic antibiotics and anti-inflammatory medication was started but the symptoms worsened. We performed incisional biopsy of orbital lesion via transcaruncular approach. Based on histopathological examination, the orbital mass was diagnosed as diffuse large B-cell lymphoma. Conclusions: We report the case of paranasal lymphoma with orbital extension presenting with acute sinusitis and orbital cellulitis from gingival abscess history and acute onset. This condition should be considered for patients with acute sinusitis and orbital cellulitis that aggravates for a short period of time.

안와에 발생한 고립성 편평세포암종 1예

한대헌,지미정,Dae Heon Han,MD,Mijung Chi,MD,PhD 대한안과학회 2011 대한안과학회지 Vol.52 No.6

Purpose: To report a case of isolated squamous cell carcinoma of the orbit. Case summary: A 75-year-old man with over a 50 pack-year history of smoking presented discomfort and visual disturbance of the left eye for several months. His best-corrected visual acuity was 0.3, intraocular pressure was 9 mm Hg, and extraocular movements were normal. Slit-lamp examinations revealed no specific findings in the anterior segment in the left eye. However, retinal exams showed an oval-shaped, juxtapapillary mass-like lesion associated with retinal folding in the left eye. A huge, distorted echoic mass with an initial prominent spike and low-to-medium internal reflectivity with diminishing amplitude was observed on ocular ultrasonography. Enhanced CT revealed a highly-intense, irregular-circumscribed heterogeneous mass (2.0 × 2.0 × 1.5) in the superomedial quadrant of the left eye. Metastatic workups, including bone scan and CT of the head, neck, chest, and abdomen, were unremarkable. One week after the initial visit, the patient experienced pain and reduced visual acuity (light perception) in the left eye. Following the diagnosis, enucleation with tumor resection and hydroxyapatite implantation was performed. Histopathologic examination revealed a moderated-differentiated squamous cell carcinoma invading the sclera. The patient subsequently underwent radiation treatment and no evidence of recurrence was reported 6 months after surgery. J Korean Ophthalmol Soc 2011;52(6):738-741

Transition-Metal-Free Synthesis of 2-Substituted Methyl Benzo[<i>b</i>]furan-3-carboxylates

Kang, Byungsoo,Lee, Min Hyung,Kim, Mijung,Hwang, Jungwoon,Kim, Hyeong Baik,Chi, Dae Yoon American Chemical Society 2015 Journal of organic chemistry Vol.80 No.16

<P>A concise and highly efficient synthetic pathway was developed for 2-substituted methyl benzo[<I>b</I>]furan-3-carboxylates. This method provides convenient and cost-effective access for 2-substituted methyl benzo[<I>b</I>]furan-3-carboxylates without the use of a transition metal catalyst for synthesis. Furthermore, in most cases, this method gives excellent yields and conventional flash column chromatography is not needed for purification.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/joceah/2015/joceah.2015.80.issue-16/acs.joc.5b01311/production/images/medium/jo-2015-01311s_0013.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/jo5b01311'>ACS Electronic Supporting Info</A></P>

눈꺼풀의 통증과 발적성 부종을 주소로 내원한 다발성 고립성 형질세포종 1예

김유정(Yu Jeong Kim),지미정(Mijung Chi) 대한안과학회 2017 대한안과학회지 Vol.58 No.2

Purpose: To report a case of multiple solitary plasmacytomas that presented with painful erythematous swelling of the upper eyelid. The patient was diagnosed with extramedullary plasmacytoma, and was later found to have multiple metastases of the bone and soft tissue during follow up. Case summary: A 55-year-old female patient presented with painful erythematous swelling of the left upper eyelid that persisted for 1 month prior to examination. Under suspicion of lacrimal gland inflammation, anti-inflammatory medication was started but the symptoms worsened. Orbital computed tomography showed that a mass infiltrated the left lacrimal gland. We performed incisional biopsy of the mass via eyelid crease incision. Based on histopathological examination, the mass was diagnosed as extramedullary plasmacytoma and the patient was treated with radiation. After a 10-month follow-up period, multiple metastases on the left parotid gland, thoracic spine, lumbar spine and pelvic bone were observed. Finally, we diagnosed the patient with multiple solitary plasmacytomas. Conclusions: We report the first case of multiple solitary plasmacytomas presenting with upper eyelid painful erythematous swelling. This condition should be considered for patients presenting with eyelid inflammation. In addition, long term follow up should be conducted to detect metastasis or recurrence.

안검에 발생한 호산구 증가증을 동반한 혈관림프증식증 1예

윤제환,지미정,Je Hwan Yoon,Mijung Chi 대한안과학회 2012 대한안과학회지 Vol.53 No.5

Purpose: The authors of the present study describe a rare case of angiolymphoid hyperplasia with eosinophilia (ALHE) of the eyelid. Case summary: A 63-year-old male who was diagnosed with ALHE based on biopsy of an inguinal mass presented with an eyelid mass of 1 month duration. A light brown, solitary, 1.0 × 0.5 cm-sized mass involved the right upper eyelid. There was no lymphadenopathy, but eosinophilia was present. An excisional biopsy of the mass was performed for diagnosis and management. Macroscopic examination of the excised mass revealed a well-defined, smooth, firm, yellowish-red colored lesion measuring 1.0 × 0.6 × 0.5 cm. Histopathology showed the proliferation of small blood vessels, many of which were lined by enlarged endothelial cells with uniform ovoid nuclei and intracytoplasmic vacuoles. The distinctive endothelial cells were described as having a cobblestone appearance. In addition, a perivascular and interstitial infiltrate composed primarily of lymphocytes and eosinophils was present. ALHE was finally confirmed with clinical and microscopic examination. Conclusions: The authors of the present study report a rare case of ALHE of the eyelid and suggest that a differential diagnosis should be considered. J Korean Ophthalmol Soc 2012;53(5):712-715