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鄭德震,徐榮培 대한본초학회 2001 大韓本草學會誌 Vol.16 No.1
In order to investigate the haematopoietic effects of Rehmanniae Radix Preparat various experiments about hematopoiesis were studied. The results were obtained as follows. 1. In the proliferous effect of bone marrow cells, water extracts of Rehmanniae Radix Preparat played an important role on the proliferating bone marrow cells compared with control group at low density (1 ㎍/㎖). 2. The water extracts of Rehmanniae Radix Preparat activated the bone marrow cells. 3. The water extracts of Rehmanniae Radix Preparat promoted the proliferation of the bone marrow cells into cluster, BFU-E, CFU-GEMM. Particularly, into cluster and CFU-GEMM. 4. In the bone marrow cells treated with CTX, the water extracts of Rehmanniae Radix Preparat promoted the SCF, IL-4, GM-CSF gene expression, but gene expression of its receptors, c-kit, EPO-R, TRO, c-mpl, EKLF, GATA-1 were not promoted significantly. According to the above results, water extracts of Rehmanniae Radix Preparat promoted not only the differentiation of the bone marrow cells into CFU-GEMM which were mother cell of erythrocytes, thrombocytes, monocytes and macrophages, but also the differentiation of the bone marrow cells into BFU-E. On the other hand, in the gene expression that have a lot of haematopoietic effects in the early differentiation of haematopoietic stem cells by promoting the gene expression of SCF, IL-4, GM-CSF and so forth, Above results also demonstrates that the water extracts of Rehmanniae Radix Preparat have somewhat meaningful effects in hematogenesis but not sufficient to explain its mechanisms about hematogenesis, therefore further deep studies shoud be accomplished about its mechanisms.
액체질소하에서 CMOS 소자의 SPICE modeling
정덕진 한국전기전자재료학회 1993 電氣電子材料學會誌 Vol.6 No.5
액체질소하에서의 물리적인 현상 및 실험결과를 통하여 캐리어 냉동현상, 좁은 폭 및 숏트 채널효과를 포함한 문턱전압 모델, Surface Roughness Scattering 및 Ioniaed Impurity Scattering을 포함한 이동도 모델과 적합한 기판 전류모델이 제안되었으며 이 모델들은 모의실험 프로그램인 BSIM과 SPICE에 이식되었다. 제작된 링 오실레이터와 리플 가산기에 적용한 결과 측정한 데이타와 잘 부합되었다.
생활지원사가 인식한 노인맞춤돌봄서비스 만족도 결정요인에 대한 연구 - 충청남도 수행기관을 중심으로
정덕진,이용재 한국장기요양학회 2023 장기요양연구 Vol.11 No.1
The purpose of this study is to identify the determinants of satisfaction with customized care services for older adults. To this end, based on the theoretical background of good care, the influence of demographic and social characteristics, working environment, and service component factors was examined, and urban and rural areas were compared and analyzed considering the characteristics of the Chungcheongnam-do region. Frequency analysis, descriptive statistical analysis, independent sample t-test and multiple regression analysis were conducted using data from a survey of 951 care supporter in the Chungnam region in 2020. As a result of the hierarchical regression analysis for the entire population, the major research results showed that the higher the service months of the care supporter, the higher the service satisfaction in terms of demographic and social characteristics. The more integrated services were provided, the more appropriate the amount and time of services for the general care group, and the higher the satisfaction with manpower allocation, the higher the service satisfaction. These results were the same in the case of rural areas. In the case of cities, the age of the care supporter, the appropriateness of target selection, the provision of integrated services tailored to the needs of the elderly, the appropriateness of the amount and time of service for the general care group, and the satisfaction with the relationship with service users was found to have a positive effect.