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Fabrication of gelatin microspheres with an encapsulated cell
이유남,최윤정,강병준,이형석 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.4
Manipulation of an appropriate 3D culture condition for each cell is essential in tissue engineering. Gelatin has gained an attention as a scaffold due to its high biocompatibility, adhesiveness, and deformability. Here, we developed a method to fabricate gelatin microspheres for cell culturing. Both magnetic stirring and vortexing methods with the water-in-oil emulsion technique were used to fabricate gelatin microspheres. By regulating a stirring rate, we were able to control the size of gelatin microspheres in the range of 10 μm to 40 μm. In addition, gelatin microspheres with a desired dimension were selected using a cell strainer. We also demonstrated to fabricate gelatin microspheres with an encapsulated single neural cell by mixing gelatin and cells. The fabricated gelatin microsphere itself and cell-laden microsphere can be applied for development of 3D cell scaffold, drug test system, and co-culture platform.
남경지,김윤진,이상엽,이정규,조영혜,이유현,최은정,탁영진,이동원,박성우,정동욱 대한가정의학회 2013 Korean Journal of Family Medicine Vol.34 No.4
Subclinical Cushing syndrome (SCS) is a hypothalamic-pituitary-adrenal axis abnormality characterized by autonomous cortisol secretion in patients with no typical signs or symptoms of Cushing syndrome. SCS patients may have adverse metabolic and cardiovascular effects due to slight, but continuous glucocorticoid secretion. Glucocorticoids also affect behavior, mood, neural activity, and a number of specific biochemical processes in the central nervous system. Here, we report a case of SCS due to an adrenal incidentaloma in a hypertensive diabetic patient who presented with chronic fatigue and anxiety that disappeared after the removal of the adrenal adenoma.
서울시내 일부 저소득층 학동기 아동의 신체발달 및 식습관
남경희,정효지,김영미,이고은,이유나 대한지역사회영양학회 2006 대한지역사회영양학회지 Vol.11 No.2
Since the economic crisis in 1997, the number of low income families has increased and the turmoil is likely to affect nutritional and health status of the children in low-income families. The purpose of this study was to investigate dietary behaviors and physical development of low income family children in the Seoul area. The subjects were 44 boys and 56 girls, between the ages of 7 and 12 years, from the beneficiary families of the governmental assistant program and enrolled in after school-care centers. A self-reported questionnaire, including general characteristics and dietary behaviors, was applied to the children and their parents. Skipping meal rate was higher in breakfast than in lunch or dinner, and was less frequent in parents and children families compared to that of the other types of families (p < 0.05). Most students are shown that they usually keep the dietary guideline for Korean children. There were significant differences in keeping the dietary guidelines between the parents and children family group and other groups in several items. The results imply that the nutrition education program should be more focused on the families which are not composed of parents and children. (Korean J Community Nutrition 11(2) : 172 ~ 179, 2006
효과적인 연파제어를 위한 대나무 마디 형태의 반파공 설계
남민규(Min-Kyu Nam),임태경(Tae-Kyeong Lim),서현주(Hyun-Joo Seo),박보배(Bo-Bae Park),이유지(Yoo-Ji Lee),이중우(Joong-Woo Lee) 한국마린엔지니어링학회 2008 한국마린엔지니어링학회 학술대회 논문집 Vol.2008 No.-
Coastal breakwaters and walls reflect some proportion of the incident waves energy. Today larger vertical wall structures are almost without exception built as shore protection method. It may be too costly to design structures to preclude overtopping by the largest waves. Recurved Wall (RCW) is one of the design for that purpose. However, the reflected waves by RCW with the inclined incident waves cause wave entrainment to the entrance of harbors or berthing area, which might enhance the wave heights inside the basin. Our group adopted bamboo section to the RCW that restrains wave penetration along the entrance channel, regardless of the direction of incident wave. When changed current Parapet in such form, harbor, fixed temperature of fishing ground may improve preservation function.
Pustulosis Palmaris et Plantaris 의 1 예
이유신,송종남,서정환,김동섭 대한피부과학회 1972 대한피부과학회지 Vol.10 No.1
A case of 42 years old male with pustulosis palmaris et plantaris was reported. The skin lesions were characterized by several vesicles, pustule, scaly crusts with a erythematous infiltrated base on the both palms and lateral side of the fingers. The physical examination showed dental caries on the left second molar teeth. The pus culture on the Sabouraud's media and the blood agar showed no growing organism. The gram stain of the lakes of pustules reveald many WBC but no organism. He was treated with oxytetracycline, DDS and wet dressing with potassium permanganate solution for 2 weeks and favorable effect was noted.