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박혜준,Park, Hye June 대한성형외과학회 2005 Archives of Plastic Surgery Vol.32 No.1
Atypical fibroxanthoma(AFX) is a tumor that occurs as a solitary and ulcerative nodule on actinically damaged or radiation damaged skin of the head and neck in the elderly. AFX is a pleomorphic spindle cell neoplasm of the dermis, which is a clinically benign reactive lesion despite of apparently malignant histologic features. We report a case of AFX which developed on the nasal root area of a 23-year-old man. This case is very unusual in terms of site(less sun-damaged area), overlying skin feature(grossly normal skin) and age(too young). This tumor was completely removed with surgical excision and remained free of recurrence for a period of about 1 year follow-up.
CONSTRUCTION OF DATABASE FOR A CUSTOMER-FRIENDLY RETRIEVAL SYSTEM OF APPAREL PRODUCTS
박혜준,( Takatera Masayuki,Shimizu Yoshio ),김형섭 한국감성과학회 2000 춘계학술대회 Vol.2000 No.-
A database was constructed for customers to find and choose and apparel product. The product information was collected from words on several kinds of advertisement, which purchasers meet in their ordinary life. The information was sorted and categorized in 8 basic mother categories (Target group, Color, Apparel type, Fabric, Size, Price, Manufacturer) to build a suitable database structure. Each mother category was arranged into subcategories. Also this study showed a demonstration version of the retrieval system. the research resulted can be used for more intensive retrieval system.
박혜준 한국유아교육학회 2007 INTERNATIONAL JOURNAL OF EARLY CHILDHOOD EDUCATION Vol.13 No.1
The purpose of this qualitative multi-case study was to examine how three immigrant Korean families of children with disabilities dealt with entry into the special education system. Through direct observations, interviews, and document analysis, each family’s transition experiences as well as cross-case analysis among the three families were described in detail. The findings indicate the salient issues of early childhood special education programs, the unique challenges faced in meeting the needs of children’s disabilities and the bilingual and cultural needs of immigrant Korean families. The stories of each family in this study provided different perspectives on Asian American families whose voices have not been heard due to the notion of Asian Americans as “model minorities” with high academic achievement in the U.S. Although the three immigrant Korean families in this study cannot represent all Asian American or minority families in the U.S., their voices and stories will contribute to an understanding of the challenges faced in dealing with entry into the special education system with limited English proficiency and a lack of cultural understanding, which many families from culturally and linguistically diverse backgrounds may share. The three immigrant Korean families in this study cannot represent all Asian American or minority families in the U.S. However their voices and stories will contribute to an understanding of the challenges faced in dealing with entry into the special education system with limited English proficiency and a lack of cultural understanding, which many families from culturally and linguistically diverse backgrounds may share.
멜라토닌이 허혈-재관류 손상에 의한 골격근의 형태학적 변화에 미치는 효과
박혜준,범진식 대한성형외과학회 2006 Archives of Plastic Surgery Vol.33 No.1
The effect of melatonin on morphological changes after ischemia-reperfusion injury was investigated in rat skeletal muscle. Dimethyl-sulfoxide(DMSO) was also tested for comparison. Muscle injury was evaluated in 4 groups as a single laparotomy group(control), ischemia- reperfusion group, DMSO group, melatonin group. Left hind limb ischemia was induced for 4 hours by vascular clamping of the common femoral artery and followed by 24 hours of reperfusion. The midportion of gastrocnemius muscle was taken for histological evaluation. In light microscopic study, ischemia-reperfusion group showed severe neutrophil infiltration, interstitial edema, and partial loss or degeneration of muscle fibers. The muscle tissue of melatonin group showed relatively normal architecture with mild inflammatory cell infiltration. In electron microscopic study, dilated cisternae of sarcoplasmic reticulum, dilated mitochondria with electron loose matrix and dilated cristae, disordered or loss of myofilament, indistinct A-band and I-band, intracytoplasmic vacuoles, and markedly decreased glycogen granules were observed in ischemia-reperfusion group. But relatively well maintained A-band, I-band, Z-line, M- line, and mildly dilated mitochondria with well preserved cristae were observed in melatonin group. The DMSO group showed intermediately attenuated ultrastructural changes. The results show that melatonin improves morphologically ischemia-reperfusion injury more effectively than DMSO. In conclusion, melatonin seems to be a promising agent that can salvage the skeletal muscle from severe ischemia-reperfusion injury.