자궁내막에 발생한 점막 연관 림프조직 (MALT) 림프종 1예

전균호,조현진,박성균,김천복,김대연,김종혁,김용만,김영탁,목정은,남주현 대한부인종양 콜포스코피학회 2003 Journal of Gynecologic Oncology Vol.14 No.4

Non-Hodgkin's 림프종의 약 40%는 결절외(extranodal) 림프종으로 대개 위장관에서 발생하며 이들 중 점막 연관 림프조직(mucosa-associated lymphoid tissue: MALT)에서 기원한 림프종은 MALT 림프종으로 분류된다. 위 외의 부위에서 원발성으로 발생하는 MALT 림프종은 매우 드물지만 실제 거의 모든 신체 장기에 발생하는 것으로 알려져 있는데, 가장 흔한 부위인 위 외에도 폐, 갑상선, 침샘, 눈물샘에 발생하고, 드물게 안구, 유방, 방광, 신장, 흉선 등에도 보고된 바 있다. MALT 림프종은 오랜 기간동안 원격 전이하지 않고 국소 병변으로 남아 있는 특징이 있어 치료 방향 또한 국소 병변의 치료에 집중되며, 예후도 림프절 기원의 림프종에 비해 양호한 것으로 알려져 있다. 본 저자 등은 자궁 내막에 원발성으로 발생한 MALT 림프종 1예를 경험하였기에 문헌 고찰과 함께 이를 보고하고자 한다. Mucosa associated lymphoid tissue (MALT) lymphoma can rarely develop primarily in extranodal sites other than stomach which is the most common site for it. Other rare primary sites are small intestine, colorectum, esophagus, lung, thyroid, salivary gland, lacrymal gland, breast and skin. MALT lymphoma represents a distinct clinicopathologic features: it is usually localized to their original site for a long time and shows much more favorable prognosis than lymphoma at other site, but some MALT lymphoma can arise simultaneously or successively in different organ or give rise to another MALT lymphoma of other organ and can be multifocally disseminated or recurred. We report a very rare case of high grade B-cell lymphoma of mucosa associated lymphoid tissue (MALT) of the uterine endometrium, which was confirmed by immunohistochemical assay.

광릉수목원 혼합림에서 복사 에너지의 계절 변화 특성

김연희,조경숙,김현탁,엄향희,최병철 한국대기환경학회 2003 한국대기환경학회지 Vol.19 No.3

The measurement of the radiation energy, trunk temperature, leaf area index(LAI), air temperature,vapor pressure, and precipitation has been conducted under a mixed forest at Kwangneung Arboretum during the period of 2001. Characteristics of the diurnal and seasonal variation of the radiative energy were investigated. The aerodynamic roughness length was determined as about 1.6m and the mean albedo was about 0.1. The downward shortwave radiation was linearly correlated with the net radiation and its correlation coefficient was about 0.96. From this linear relation, the heating coefficient was calculated and its annual mean value was about 0.21. The albedo and heating coefficient was varied with season, surface characteristics, and meteorogical conditions. The diurnal and seasonal variations of radiation energy were discussed in terms of the surface characteristics and meteorological conditions. In the daytime, during clear skies, net raditaion was cominated by the shortwave radiation. In presence of clouds and fog, the radiation energy was diminished. At night, the net radiation was entirely dominated due to the net longwave radiation. There was no distinct diurnal variation in net radiation flux during the overcast or rainy days. The net radiation was strongest in spring and weakest in winter. The seasonal development in leaf area was also reflected in a strong seasonal pattern of the radiation energy balance. The timing, duration, and maximum leaf area and trunk temperature were found to be an important control on radiation energy budget. The trunk temperature was either equal or warmer than air temperature during most of the growing season because the canopy could absorb a substantial amount of sunlight. After autumn(after the middle of October), the trunk temperature was consistently cooler than air temperature.

서울시 일부 대기 중 라돈농도의 분포에 관한 연구

김윤신,이철민,김현탁,이홍석,박태술 한양대학교 환경및산업의학연구소 2000 環境과 産業醫學 Vol.9 No.1

A study of atmospheric radon concentrations survey in Korea, Seoul was carried out with ERM(Electrostatic Radon Monitor) from October 1998 to September 1999. The mean of atmospheric radon concentrations 4.79Bq/㎥ at Seoul. Radon concentration were distributed 3.65-8.71Bq/㎥. The seasonal pattern seems to be relatively higher during the autumn and relatively low during the spring. The result from correlation analysis was significant obtained between atmospheric radon concentrations and meteorological factor.

지하매설 구조물에 작용하는 토압에 관한 실내 모형 실험

김문규,김현탁 동의공업대학 2001 論文集 Vol.27 No.1

Buried box structures are used for highway, railway and public utilities such as water supply, sewerage and electric works. Such use will be increased for land efficiency, traffic and environmental problems in the future. In the design method for box structure, for the vertical pressure on the top of the structure and for the lateral pressure on the wall, the Marston's and Jaky's(1944) equations are used in practice, respectively. However, the existed design methods does not consider the excavation geometry and the backfill process. Here, a model experiment was performed for the earth pressures acting on a buried box structure, which was considered both the backfill geometry and process. And the experimental data was compared with those by the existed methods. The results of comparison are as follows: (1) The vertical pressure by the model experiment was different with the self weight(γH), but depending on the geometry and relative density of backfill. (2) The calculated lateral pressure by the Silo theory agreed well with the measured one in tbackfill widthhe narrow.

오원천의 식물플랑크톤 군집에 대한 연구

주현수,김진,박종천,정원석,송현철,이용탁,이우범 國立麗水大學校 環境問題硏究所 2004 環境硏究論文集 Vol.6 No.-

We carried out a study on phytoplankton community at Owon stream, Jeollabukdo, Korea. The author have examined 83 taxa of the phytoplankton from researched area. These were composed of 5 classes, 11 orders, 21 families, 44 genera, 79 species, and 9 varieties. The composition of occurrence species were as follows: green algae are 48.2%, diatoms are 33.7%, blue green algae are 10.8% and etc(7.3%). Dominant species were Chlamydomonas angulosa, Pandorina morum, Coelastrum microporum, Scenedesmus quadricauda, Staurastrum gracile, Melosira varians, Me. italica, Synedra ulna, Sy. acus, Cocconeis placentula, and Cymbella tumida. The standing crops varied from 1,650cells/ℓ to 47,000cells/ℓ. Phytoplankton density of Owon stream were lower about 8.6 times to a 1,531 times than those of other lakes and rivers in Korea. So, to preserve the water quality in Owon stream we have to manage continuously on the nitrogen and phosphorus.

발치와의 치유과정에서 교원질 및 비교원단백질의 분포에 관한 면역조직화학적 연구

오화탁,김현수,주성숙,신제원 慶熙大學校 齒科大學 1995 慶熙齒大論文集 Vol.17 No.2

During tooth socket healing, the coagulum in the socket is replaced by fibrous connective tissue which undergoes mineralization and eventually becomes bone. Using this model, the healing process of the tooth socket and the role of type I collagen(CI), fibronectin(FN), bone sialoprotein(BSP), and osteopontin(OP) in the process were studied. Thirty Sprague-Dawley rats weighing 130-150gm were fed fi -aminopropionitcille for 5days before extraction of the first maxillary molars, and sacrified by perfusion with 4% paraformaldehyde at 1, 3, 5, 7, and 10days after tooth extraction. The socket and surrounding tissues were cut, demineralized, dehydrated and embedded in paraffin. For morphological observation, the sections were stained by Azan. Immunostaining of the ECM components was achieved by the avidin-biotin complex method. The results as follows; 1. Morphology of the tooth socket 1day after tooth extraction. The socket was filled with blood coagulum which was composed of densly aggregated red blood cells, platelets and fibrin network. 2. Morphology of the tooth socket 3days after tooth exyraction. A large portion of the coagulum was replaced by fibrous connective tissue contains a large number of fibroblasts, come from periphery of the socket. 3. At 5days, the newly formed bone demonstrated the highest proliferation activity. At 7days, the soclet was occupied with new bone. 4. Type I collagen was observed in the newly formed connective tissue and around the new bone. fiber. 5. Intensive staining for fibronectin was observed in granulation tissue, especially around blood vessels as well as inflammatory cells. 6. Strong immunostaining for bone sialoprotein and osteopontin was found in osteoblasts and new bone, while weaker staining was observed on dense connective tissue. 7. These data suggest that collagen and noncollagen proteins (FN, BSP, OP) an important role daring socket healing.

저장기간에 따른 3개 수종의 종자 및 발아 특성 변화

한심희,김찬수,장석성,이현주,탁우식 한국농림기상학회 2004 한국농림기상학회지 Vol.6 No.3

This study was conducted to examine the changes in the seed physical characters and germinative properties of three tree species at three different storage times in order to determine the most suitable storage time and condition. Seed physical characters and germinative properties were examined from seeds of Fraxinus rhynchophylla, Zanthoxylum schinifolium and Staphylea bumalda that were stored at -18C for 1, 3 and 10 years, and the growth performance and physiological characters of their seedlings were analyzed. Seed physical characters and germinative properties showed significant differences between three storage times as well as three tree species. Seed moisture content of F. rhynchophylla and S. bumalda and seed fresh weight of Z. schinifolium decreased with increase of storage time. Storage time represented negative correlation with moisture content and fresh weight (r = -0.822, p < 0.01). Seed percent germination of Z. schinifolium and S. bumalda stored for 3 and 10 years decreased less than 15% and 10.7% respectively. Mean germination times for seed of F. rhynchophylla, Z. schinifolium and S. bumalda were delayed 11.9, 5.7 and 9.7 days after a storage time of 10 years, respectively. However the growth and viability of seedlings didn't show a special pattern for storage time and tree species.

1980年代 學生運動의 變化와 指導方案

羅東晋,金鉉俊,權仁鐸 全北大學校 學生生活硏究所 1988 學生生活硏究 Vol.16 No.-

집적화된 실리콘 압력센서의 출력전압 보상파라미터 추출 및 그 특성

이보나,김건년,박효덕,신상모,이경탁,김찬,권혁채,이상조,박현주 경북대학교 센서기술연구소 1998 센서技術學術大會論文集 Vol.9 No.1

An integrated silicon pressure sensor has been designed, fabricated and tested. The signal conditioning circuits were designed to include calibration and temperature compensation of output voltage through trimming of diffusion and ion-implanted resistors. Before trimming of resistors, the compensation parameters such as pressure sensitivity, temperature coefficient of pressure sensitivity, temperature coefficient of piezoresistors and pressure sensitivity of piezoresistors were measured. Then offset voltage, span, and temperature coefficients of offset voltage and span were calibrated by trimming of resistors. The measured output voltage met our design specification and simulation value above room temperature. But, the measured output voltage at -30°C deviated from our design specification and simulation value because the offset voltages were found to vary randomly as a function of temperature.

Carboxymethyl chitosan의 항균성과 항곰팡이성

선우양일,박현숙,탁연수,최윤정,김광 동아대학교 환경문제연구소 1997 硏究報告 Vol.20 No.1

Chitin was converted to chitosan by deacetylation, and then carboxymethyl chitosan(CM-chitosan)was obtained by carboxymethlation of chitosan. The antibacterial activity was estimated using the miminum inhibitory concentration (MICwt%) assay. MICwt% of Bacillus subtilis, Escherichia coli, Pseudomonas aeruginosa, candida albican and Staphylococcus aureus were 0.5, 0.5, 0.25, 0.25, 0.75 respectively. CM-chitosan was tested for antifungal antivity which is measured the inhibition of hyphal extension of the fungi. MIC_(50)wt% of CM-chitosan was shown half growth of the experimental over control group. MIC_(50)wt% of Penicillium citrinum, Myrothecium verrucaria and Verticillium albo-atrum were 0.5, and Gliocladium virens was 0.75, respectively. These results showed that CM-chitosan had the high inhibitory effect on the growth of the bacteria and fungi.