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장대성(Dae Sung Chang),심주현(Joo Hyun Shim),서성준(Seong Jun Seo),송계용(Kye Yong Song),홍창권(Chang Kwun Hong) 대한피부과학회 2001 대한피부과학회지 Vol.39 No.5
Lentigo maligna(LM) is a pigmented lesion that occurs on the sun-exposed skin of an older patients and may become lentigo maligna melanoma(LMM). Currently the percentage of LM type melanoma appears to be increasing, and this rise has been attributed to increasing UV radiation exposure. In addition to UV radiation, estrogen and progesterone, and nonpermanent hair dyes have been proposed as risk factors. A case is a 66-year-old female with a 3 years history of pigmented patch. She had a gradually enlarging irregular bordered brown to black mottled patch on the right temple area. Histologic examination revealed atypical melanocytes along the basal layer of atrophic epidermis, arranged in solitary units and small nests. Perilesional skin showed many scattered melanophages and regressing nevus cell nests which suggested preexisting nevus underwent regressive change. On the basis of clinicopathologic examination we diagnosed this case as lenigo maligna arising from nevocytic nevus and then we removed the lesion by wide surgical excision and could not find any recurrence until now.
장대성(Dae Sung Chang),김명남(Myeung Nam Kim),홍창권(Chang Kwun Hong),노병인(Byung In Ro) 대한피부과학회 2002 대한피부과학회지 Vol.40 No.2
Pemphigus foliaceus is a rare, relatively mild and chronic variety of pemphigus which is characterized by superficial flaccid bullae which show acantholytic changes in the upper part of the epidermis histopathologically. Present case is a 40-year-old female with a 2 month history of yellowish colored verrucous plaques on the whole scalp. 6 years ago, she had been admitted to our hospital because of nearly generalized erythematous eroded patches, crusted plaques and bullae and diagnosed as pemphigus foliaceus and treated with corticosteroid and methotrexate. 2 months ago, an additional lesion was found on the scalp, where yellowish colored, verrucous surfaced plaques were observed. Histologic examination on the verrucous plaque showed hyperkeratosis, acanthosis and papillomatosis with acantholysis in the granular layer, leading to a subcomeal blister and dyskeratotic granular keratinocytes were seen within the blister. On the basis of clinicopathologic examination we diagnosed as pemphigus foliaceus and then we treated her with prednisolone and the skin lesion had subsided 7 months later. We report a patient of pemphigus foliaceus who was presented with verrucous surfaced plaque, which clinically mimicked pemphigus vegetans.
한국 대학 교양교육에 만족을 주는 서비스 품질요인과 교육요인 및 단과대학별 만족도 분석 연구
장대성(Dae-Sung Chang),이정현(Jung-Hyun Lee),조영희(Young-Hee Cho) 한국컴퓨터정보학회 2010 韓國컴퓨터情報學會論文誌 Vol.15 No.6
본 연구는 한국 대학의 교양교육 서비스와 만족도에 관한 연구이다. 연구 분석 결과 학생들은 교수들의 공감성 및 신뢰성 그리고 모든 서비스 품질요인들에 만족을 하고 공부하고 싶은 과목과 학점취득이 쉬운 과목에 만족도가 높은 것으로 나타났다. 그러나 공부의 양과 수강생수의 규모 등 수업의 내용과 질에 영향을 줄 수 있는 교육 요인들은 만족도에 전혀 영향을 주고 있지 않다. 학생들은 좋아하는 과목을 교수들이 쉽고 편하게 자상하게 해주면서 학점을 잘 주면 만족도가 높아지는 것으로 나타났다. This study investigated the relation between the liberal arts education service and students' satisfaction. The results of the study show that students are satisfied with all of five service quality factors, students' intention of studying, full time instructors' teaching and high GPA in taking liberal arts classes. However, educational factors such as the quantity of home work, frequency of test and the size of class, which can influence the quality and contents of classes, do not impact the students' satisfaction of liberal arts education. The college students of Korea may tend to be more satisfied with the liberal arts classes which they feel easier to study and to get better grades.
장대성 ( Daisung Chang ) 한국국방기술학회 2020 한국국방기술학회 논문지 Vol.2 No.2
대표적 공공연구기관으로 국가성장을 위한 혁신성과 창출의 핵심역할을 담당하는 과학기술분야 정부출연연구기관(이하 정출연)이 최근 4차 산업혁명 기술 등 혁신적인 민간기술의 군 활용을 활성화하여 국방과학기술을 더욱더 발전시켜 나아가기 위한 협력방안을 제시하였다. As a representative public research institute, a government-funded research institute in the field of science and technology (Jung Jeon-yeon), which plays a key role in creating innovative results for national growth, recently promoted the military use of innovative private technologies such as the 4th Industrial Revolution technology to promote defense science and technology. A cooperative plan for development was suggested.
비호발 부위에 발생한 피지선암 2 예 - Muir - Torre 증후군 1 예 -
장대성(Dae Sung Chang),서성준(Seong Jun Seo),홍창권(Chang Kwun Hong) 대한피부과학회 2001 대한피부과학회지 Vol.39 No.5
Sebaceous carcinoma is a malignant tumor derived from the adnexal epithelium of sebaceous glands and is usually located on the meibomian glands of the eyelid, but may occur on the extraocular sites. We present two cases of sebaceous carcinoma developed on the unusual site. The first case was 66-year old woman, who had 2.2×3.0cm sized, yellowish, verrucous surfaced plaque on the abdomen for 20 years. The second case of 79-year old man had annular shaped erythematous greasy patch with peripherally located flat plaque on the left scapular area for 1 month. His past medical history included subtotal gastrectomy for early gastric cancer(type II a) and could not find any recurrence or metastasis for 4 years duration. The histopathologic examination revealed irregular, variable sized tumor lobules. Each lobule was composed of sebaceous and undifferentiated cells showing considerable variation in the shape and size of their nuclei and prominent nucleoli. On the basis of clinicopathologic examination we diagnosed first case as sebaceous carcinoma and second case as Muir-Torre syndrome.
한국 변호사 사무실 서비스 품질과 고객 만족에 관한 연구
장대성(Daesung Chang),황인정(Injung Hwang),김민수(Min-soo Kim) 한국컴퓨터정보학회 2006 韓國컴퓨터情報學會論文誌 Vol.11 No.3
본 연구의 분석 결과 법률 서비스를 경험한 집단과 경험하지 않은 집단 모두 변호사 사무실 서비스에 대한 기대치는 높으나 두 집단 모두 변호사 사무실 서비스는 낮은 것이라고 경험 또는 예상하고 있다. 이는 한국의 변호사 업무의 과독점성으로 인하여 서비스 품질 수준이 낮아 왔다는 것을 반영하는 것 같다. 법률서비스 고객들은 고객들의 편에 서서 자상하게 이해 해주면서 법률서비스를 수행하면 만족이 높은 것으로 나타났다. 또한 변호사 사무실의 유형적인 요소인 근로자의 단정함과 교통이 편리한 위치등도 고객만족에 영향을 주는 것으로 분석결과는 보여주고 있다. This study is the first research for the lawyers' office service quality in Korea. Several T-tests' results show that the performance of lawyers office service was perceived much lower than the expectation of customers. A causal analysis was conducted to identify which service quality factors influence customers' satisfaction of the lawyer's office in Korea. The results of the analysis show that tangible and empathy service quality factors are the most important factors for the lawyers' customers' satisfaction. Thus, lawyers' office should invest some money in selecting location and building including interiors to increase customers' satisfaction in Korea. And then, lawyers should improve the empathy quality factor which make their customers feel their law office comfortable and helpful to them.