Ocular MALT Lymphoma : Report of Two Cases

윤영묵,장효찬,김동석,김상원,박미옥,박재복 대구효성가톨릭대학교 1998 연구논문집 Vol.57 No.2

Lymphoma arising in mucosa-associated lymphoid tissue(MALT) is extranodal marginal zone lymphoma displaying a proliferation of follicle marginal zone-type cells(centrocyte-like cells or monocytoid B-cells), often with surrounding reactive germinal centers and lympoepithelial lesions. This typically expresses pan-B-cell markers and monotypic immunoglobulin but not CD5 or CD10. Ocular MALT consists of the lacrimal gland, lcular soft tissue, orbit, conjunctiva and cornea. Lymphoma arising in thses sites is of very rare occurrence in up to 1.5% of all patients with non-Hodgkin's lymphoma. Herein we report two cases of ocular MALT lymphoma which was very rare in the dermatologic field. Case 1, 73-year-old man, developed the right upper conjunctival swelling measuring about 2.0×2.5cm for about 1 year. Histologically, the excised lesion showed follicular centers and infiltration of centrocyte-like cells of B-cell lineage in the stroma but no lymphoepithelial lesions, consistent with low-grade B-cell lymphoma. Case 2, a 66-year-old female, had a rapid course of about 1.2×1.0cm-sized, soft, wellow mass arising from lacrimal gland of the right upper eyelid for about 1 month. Hostologically, the lesion showed diffuse patterend features admixed with centrocyte-like cells and large cells such as centroblast, compatible with high-grade lymphoma. Case 2 received combined chemotherapy of m-BACOD, with a somewhat improvement.

특발성 자발성 신장 파열 1예

윤재철,김원,조규종,홍정석,이미우,장성은,오세현,임경수 대한응급의학회 2001 대한응급의학회지 Vol.12 No.4

Primary aldosteronism is a syndrome characterized by hypertension, hypokalemia, suppressed plasma renin activity, and elevated serum aldosterone levels. Conn first described it 1955 in association with adrenal cortical adenoma(Conn's syndrome). Today, it can be divided into at least six distinctive sub-groups. The diagnosis of primary aldosteronism is usually suspected when the patient presents with poorly controlled hypertension with hypokalemia. The main issues in the evaluation of primary aldosteronism are to differentiate an adenoma from hyperplasia and to localize the adenoma. Basic hormonal studies and computed tomographic(CT) scanning can be used effectively for that differentiation. An adenoma is one of a few potentially curable forms of hypertension, and it is best treated by removing the adrenal tumor. We experienced a case of a typical adrenal adenoma. The patient was a 37-year-old male who had experienced in both his legs over a period of several days a weakness due to hypokalemia. He was diagnosed using basic hormonal studies and adrenal CT scanning. After, he received laparoscopic adrenalectomy and was discharged with improved condition.

서울시민의 수돗물 불소화에 대한 인식

장재연,조수남,윤제용 대한상하수도학회 2003 상하수도학회지 Vol.17 No.2

Public perception concerning water fluoridation and influencing factors were assessed. A mailing survey was conducted in 1999 with a representative sample of the general Seoul citizen (response rate=40.1%), who consisted of 1108 adults aged between 20 and 78. The data were analyzed using the chi-square test and structural equation modeling. 48.3% favored and 11.4% opposed water fluoridation while 40.5% were not certain. The contact on information about water fluoridation was the most significantly influencing factor on the perception concerning water fluoridation while experience of marriage, income and the perception of tap water were also significant. 52.8% expect governmental health authorities to take the decisions about water fluoridation.

정신분열증과 주요 우울장애에서 Natural Killer Cell 수와 백분율 변화NK cell

윤장봉,이재우,박두병 大韓神經精神醫學會 1996 신경정신의학 Vol.35 No.5

The purpose of this study was to compare the number and percentage of natural killer cell in schizophrenic and major depressive patients with those in normal healthy subjects 15 Schizophrenic patients, 15 major depressive patients and 16 healthy subjects were included in this study There was no statistical difference in the age and sex between patients and control subjects. All of these patients were drug-free for at lest two weeks before this study. The results of this study were as follows : 1) In schizophrenic patients, the number and percentage of natural killer cell of the group with below-mean score of general psychopathology were significantly lower than those of the group with above-mean score(p<.05). The number but not the percentage of natural killer cell of the group with below-mean BPRS score was significantly lower than that of the group with above-mean BPRS score(p<.05). 2) The number of natural killer cell showed statistically negative correlation with generalpsychopathology score or BPRS score(p<0.05). In conclusion, these findings suggest that the number and percentage of natural killer cell is not significantly changed in schizophrenia and major depressive disorder, but in schizophrenic patients, severe psychopathology in the rating scales is associated with suppression of the number and percentage of natural killer cell.

Prednisolone과 Prednisone의 임상약동학적 평가

신재국,윤영란,차인준,이경훈,장인진,신상구,박찬웅 大韓臨床藥理學會 1994 臨床藥理學會誌 Vol.2 No.1

분산형 전원의 계통 연계에 따른 영향 및 시뮬레이션

심재선,박지웅,윤창대,임창민,장 현 三陟大學校 2006 論文集 Vol.39 No.-

As EG(Embedded Generation: photo- voltaic, wind, combined heat and power, fuel cell, small hydro etc.) grows fast in adopting to peak load reducing at the middle or the end of distribution system, there much has been interested in interconnection of EG. This paper discusses the various issue of a embedded generator to power system and shows the simulation of its various situation that could happen(focusing on load-flow by EG) by using a commercial software CYME(PSAF) for load-flow. With a result of above simulation, this paper shows a way of possible solution briefly.

Ni을 含有하는 Hadfiel 鋼의 炭化物 析出에 관하여(Ⅱ) : 微量에 依한 炭化物 析出

成章鉉,孟允在,金文一 연세대학 산업기술연구소 1977 논문집 Vol.7 No.1

0.15% V was added to the modified Hadfield steel containing 3.2% Ni and after solution treatment, the steel was isothermally heated in the range 300℃ to 980℃. The precipitation of carbide and pearlitic constituent were tudied by means of microscopys and hardness test. The results obtained were as follows. (1) Carbide is more rapidly precipitated in the range of 600-800℃ and formed in the range of 350-910℃ with increasing heating time. (2) The precipitation of P.C. is more rapid at 700℃ and occurs in the range of 500-700℃ with increasing heating time. (3) The higher the heating temperature is the shorter the length of the acicular carbides becomes. (4) lncreased hardness is mainly caused by acicular carbide. The shape and the distribution of precipitates also bring about the hardness change.

인공 해수분위기에서 저탄소강의 부식특성에 미치는 합금원소 Cr, Co 및 W의 효과

심재주,유승재,최윤석,김정구,유장용 대한금속재료학회 2003 대한금속·재료학회지 Vol.41 No.12

The aqueous corrosion characteristics of 1% Cr-steel alloyed with small amounts of Co and W, in synthetic seawater was studied by using immersion weight-loss tests, electrochemical corrosion tests (potentiodynamic test and electrochemical impedance spectroscopy (EIS) measurements) and analytical techniques. 1% Cr steels containing Co or W from 0.2 to 0.4 wt.% showed higher corrosion resistance than the 1% Cr steel in the immersion and potentiodynamic tests. EIS measurements showed that the Nyquist plot presented one time constant. Furthermore, the Co- and W-bearing steels present higher Rp values than the 1% Cr steel through all the test period. The better corrosion resistance of the Co-and W-bearing steels is attributed to protectiveness of the surface layer. The corrosion products were examined using electron probe microanalysis (EPMA) and X-ray photoelectron spectroscopy (XPS). The results of EPMA indicated that Cr was concentrated in the inner region of the rust layer, while Co and W were distributed all over the rust layer. XPS results showed that Co existed as a trivalent oxide in the rust layer and W in the rust appeared in the form of a WO₄ compound.

침대평판형 전극에서 자계가 정극성 직류 코로나방전에 미치는 영향

박재윤,김익균,정장근,김정달,박상현 慶南大學校 附設 工業技術硏究所 1999 硏究論文集 Vol.17 No.-

본 연구실에서 실시한 자계가 인가된 다중 침대평판형 플라즈마 반응기에서 연소가스(NOx,SO₂)의 제거 효율에 관한 실험의 결과에서 자계를 인가한 경우의 제거 효율이 자계를 인가하지 않았을 때 보다 높은 것으로 나타났다. 따라서, 본 연구에서는 이와 같은 실험결과를 바탕으로 자계가 코로나 방전에 미치는 영향을 근본적으로 조사하기 위해 침대평판형 전극을 구성하여 정극성 직류전압을 인가하고 이때 형성된 전계방향과 직각방향으로 자재를 인가한 경우와 인가하지 않은 경우의 코로나방전 특성을 측정하고 분석하였다. 실험결과, 자계를 인가한 경우가 인가하지 않은 경우보다 파괴전압이 높고, 방전전류가 작으며, 방전영역이 넓은 것으로 나타났다. 또한 자속밀도가 증가함에 따라 절연파괴전압이 선형적으로 증가하였다. The effect of magnetic field on NOx and SO₂ removal characteristics from a combustion flue gas has been experimentally investigated for a DC corona discharge reactor with a multipoint-plate geometry. NOx and SO₂ removal efficiency by plasma reactor with magnetic field was much higher than that of plasma reactor without magnetic field. In this Paper, one needle-plate geometry discharge system with magnetic field at a right angle to the electric field was made. The corona discharge characteristics for this system was investigated and compared with the corona characteristics for the corona discharge system without magnetic field. As a results, breakdown voltage for the electric-magnetic hybrid system was higher than that for only electric field system and corona current with magnetic field was lower than that without magnetic field. Corona discharge zone with magnetic field was wider than that without magnetic field. Breakdown Voltage increased with increasing the magnetic field density.

알레르기 피부 반응 검사시 판독 시간에 따른 팽진의 크기 변화

박장규,윤소영,이웅재,서기범,이증훈 충남대학교 의과대학 지역사회의학연구소 1996 충남의대잡지 Vol.23 No.2

There have been several positive criteria for skin prick test, which has been most commonly used in the diagnosis of allergic diseases. Among them, comparing wheal size induced by allergen to that induced by histamine is logical for criteria of skin prick test positivity. We measured the wheal sizes induced by histamine and various causative allergens with five minutes interval, from 5 minutes to 40 minutes, and compared of the time which the wheal size of both reached at peak. The followings were the summary of the findings. 1. Maximal sizes of wheals induced by histamine reached at 12 minutes in average. 2. Maximal sizes of wheals induced by allergens reached at 15 minutes in average. 3. There was no statistical difference between the time of maximal size of wheal induced by histamine and causative allergen.