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( Joong Keun Kim ),( Ki Uk Kim ),( Sun Mi Jang ),( Kyung Hwa Shin ),( Jung Seop Eom ),( Hae Jung Na ),( Geewon Lee ),( Ahrong Kim ),( Byeong Gu Song ),( Dong Hun Shin ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1
A 62-year-old female patient with a 10-month history of palliative chemotherapy for adenocarcinoma of the lung was diagnosed with a focal liver lesion on a follow-up CT scan. It was presumed initially to be due to metastasis. However, PET/CT scan showed no abnormal uptake, and thus histopathological confirmation was required. An ultrasound- guided biopsy was performed, and pathology revealed that the lesion was a benign tuberculosis pseudotumor. Primary hepatic tuberculosis, especially the macronodular form, remains very rare, even in a country where tuberculosis is prevalent. Hepatic tuberculosis should be included in the differential diagnosis of patients with underlying malignancies such as lung cancer, to avoid missing this rare but curable disease.
辛奉燮,南重熙 한국잠사학회 1991 한국잠사곤충학회지 Vol.33 No.2
The treatments of methacrylamide on silk fibers were studied in aqueous solution using potassium persulfate as an initiator, and suitable conditions of reaction were determined for weighing of silk fibers. The results obtained were summarized as follows; The weight of MAA-treated silk fibers increased with monomer concentration. The adequate concentration of potassium persulfate was found to be 1.7%. Maximum weight increase was shown at initial pH 3.8 of reaction liquor controlled by buffer solution.
辛奉燮,南重熙 한국잠사학회 1994 한국잠사곤충학회지 Vol.36 No.1
The effects of some sodium phosphates as auxiliary agents were studied on the blockade of hardness for silk degumming. In this work, four kinds of sodium phosphates were tested and the results were obtained yhrough masking effects of metallic ions, difference of pH values and boil-off ratio. The degumming of calcium ingredient was analyzed by means of atomic absorption spectrophotometer and degumming test of cocoon shell was performed in the presence of calcium ingredient and sodium phosphates added to soap solution. In the view of the effects of sodium phosphates on calcium hardness, tetrasodium pyrophosphate(TSPP) and sodium phosphate dibasic(SPD) masked calcium ions more than sodium phosphate monobasic(SPM) and sodium hexametaphosphate(SHP). SHP and TSPP have excellent abilities of masking ferrous ions. The pH values of TSPP solution is higher than others, but lower than soap solution. The pH values were differently measured one another among the sodium phosphates but the boil-off ratio was increased in case of sodium phosphate with high pH value.
辛奉燮,南重熙 한국잠사학회 1992 한국잠사곤충학회지 Vol.34 No.1
Treatment of vinyl monomers onto silk fiber modifies the properties of the original silk fiber considerably. This field has been the subject of investigation by many workers using chemical and radiation initiation. Many studies on the reaction conditions, polymerization mechanism, physical properties and practical performances of methacrylamide-treated silk fiber have been continued. However, the polymerization mechanism has not been clearly reveated yet and this remains ambiguously whether the grafting is formed on fiber or not. In general, it has been accepted that free radicals were formed and vinyl monomers were polymerized in silk fibroin by graft polymerization mechanism, while active sties were varied by the types of monomer and initiator as well as by the reaction conditions. On the other hand, there is another argument on polymerization mechanism, in which monomers are polymerized and impregnated in the internal side of the fiber by homopolymerization. Though a large number of analytical methods are used to examine the polymerization mechanism of methacrylamide-treated silk fiber, the results on the basis of thermal analysis are merely reported in this paper. In differential scanning calorimetry (DSC) analysis, the thermal decomposition behaviors of the methacrylamide-treated silk fibers were determined and compared to those of the controlled silk fibers. DSC curves obtained from the methacrylamide-treated silk fibers showed double peaks at around 290°C (A peak) and 320°C (B peak) which are attributed to the thermal decomposition of the methacrylamide polymer and silk fibroin fiber, respectively. The temperature of A and B peak shifted to higher value with the increase of add-on. Also, the moisture regain of the treated silk fibers increased with add-on.
KT2-962 의 우측신절제와 좌측신혈관 결찰로 유발된 급성 허혈성 신손상 흰쥐에서의 신기능에 미치는 영향
신중식,고현철,강주섭,신인철,서대규 한양대학교 의과대학 1993 한양의대 학술지 Vol.13 No.1
Thromboxane A₂has been known as an important endogenous substance which is related to impairment of renal function. In normal kidney, TXA₂can modulated renal blood flow (RBF) and glomerular filtration rate (GFR). However in various pathologic condition, especially in renal ischemia, RBF and GFR are decreased due to increase of TXA₂production by the renal cells and then renal cells are injured subsequently. KT2-962 on acute renal ischemia induced by the right nephrectomy and the ligation of left renal vessele for 40 min in 20 male rats (250-300g). Before induction of ischemia, 40mg/kg of KT2-962 was administered orally three times with interval of 12 hours. Same dose of KT--2-962 was administered at 12hours after reperfusion of renal vessels. Blood samples were taken form femoral vein before operation and two times after operation at the interval of 24 hours. BUN and serum creatinine concentration were measured by automated chemistry analyzer(SBA-300, Gilford co). The results obtained were as following. 1. In control group (n=10), BUN levels (mean±SD) at 24,48 hours after right nephrectomy and ligation of left renal vessels for 40 minutes were 142.3±15.1, 172.6±28.2mg/dl. The BUN levels in the group treated with KT2-962 (N=10) were significantly decreased to 107.0±9.9, 104.9±10.9mg/dl (p<0.05) respectively. These BUN levels were inhibited 24.8% and 39.3% compared with control group. 2. In control group (n=10), serum creatinine levels (mean±SD) at 24,48 hours 0.87, 6.90±1.25mg/dl. The serum creatinine levels in the group treated with KT2-962 were significantly decreased to 4.55±0.55, 4.47±0.64mg/dl(p<0.05) respectively. These serum creatinine levels were inhibited 16.2% and 35.2% compared with control group. In conclusion, KT2-962 inhibited the elevation of BUN and serum creatinine levels in acute renal ischemia and these results suggest that KT2-962 may be used in the prevention and treatment of severe acute renal ischemia.