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HFCLM 추출기에 의한 Pt(IV) 이온의 분리에 관한 연구
李淮根,周昌植,黃龍一 釜山工業大學校 1993 論文集 Vol.35 No.-
The hollow fiber contained liquid membrane (HFCLM) permeator is a new device which is com-posed of a thin liquid membrane film contained in the interstices of two sets of intermingled micro-porous hollow fibers. HFCLM permeator has some concrete advantages over other conventional se-paration devices, besides two steps of the membrane separation processes, extraction and stripping, can be performed in a HFCLM permeator continuously. The separations of platinum chloide(Ⅳ) ion from hydrochloric acid soutions are carried out in the hydrophobic HFCLM permeator which contains Tri-n-octylamine(TOA) in xylene as a memb-rane liquid. The operational characteristics of a HFCLM permeator and the effects of operating pa-rameters on the separation rates were studied experimentally and some valuable results were ob-tained.
김갑득,박준석,송화식 大韓應急醫學會 1996 대한응급의학회지 Vol.7 No.1
The authors have analyzed 60 patients with severe head injury who defined as post-traumatic coma for 24 hours with Clasgow Coma Scale(GCS) score of 8 or less and admitted to emergency room of Dankook university hospital from January to June 1995 to evaluate the factors affecting GCS and autcome with initial CT findings. The results are summerized as follows; 1. The status with low GCS score was observed from ① intracranial mass, especially acute subdural hematoma(SDH) ② midline shift≥3mm ③ completely compressed mesencephalic cistern 2. The mortality was high in intracranial mass, especially in acute SDH 3. The mortality for patients with miline shift≥3mm was high regardless of a mass lesion, but there was no statistical significance. As the mesencephalic cistern was partially compressed, the midline shift≥3mm did not affect the mortalith. The outcome was good in the group of midline shift≥3mm with GCS 6-8. 4. If the mesencephalic cistern were compressed, especially in complete compression, the outcome was much more likely to be poor than cistern was normal. 5. The poor outcome was obtained from the patients with low GCS score and compression, the outcome was much more likely to be poor than cistern was normal. 6. The poor outcome was obtained from the patients with low GCS score and compressed mesencephalic cistern in initial CT findings.
The Efficacy and Safety of Long-term Oral Cyclosporine Treatment for Patients with Atopic Dermatitis
( Sik Haw ),( Min Kyung Shin ),( Choong Rim Haw ) 대한피부과학회 2010 Annals of Dermatology Vol.22 No.1
Background: Steroids are used in conventional treatment of atopic dermatitis (AD) and they are very effective for improving the symptoms, but they also have several complications. Many studies have reported that short-term use of cyclosporine (CsA) is effective for severe AD as a substitute for steroid. However, there are very few studies on the long-term use of CsA for AD in the Korean population. Objective: The purpose of this study was to investigate whether long-term CsA therapy is effective and safe for treating AD. Methods: We performed a retrospective study of the patients with AD and who were treated with CsA at Kyung Hee Medical Center between January 2001 and February 2008. Among 147 patients, 61 received CsA treatment for more than 6 months. To evaluate the efficacy of CsA treatment, the objective SCORAD was checked for all 61 patients at every visit. Extensive laboratory tests were performed every two months to assess the safety of treatment. Results: The mean duration of CsA treatment was 13.5±8.4 months and the mean initial dose of CsA was 2.7±0.9 mg/kg/day. The mean objective SCORAD values significantly decreased from 34.1±11.2 at baseline to 11.4±10.7 after 6-month of CsA treatment (p<0.05). A significant decline of the SCORAD score was observed starting from 1-month of CsA treatment. The mean duration of remission was 4.5±2.9 months. A total of 13 adverse events in 10 patients were recorded during the study period. One patient dropped out due to renal dysfunction. Elevation of peripheral blood pressure was noted in 8 patients. Three patients complained of gastrointestinal troubles, and one patient had hypertrichosis, but the problems of these 4 patients were mild and easily treated. Conclusion: We suggest that long-term, low-dose CsA treatment is safe and effective for patients who suffer from AD. (Ann Dermatol 22(1) 9∼15, 2010)
Broad Band Ultraviolet B 조사에 의해 유도된 피부 종양에 대한 Poly-gamma Glutamic Acid의 효과
허식 ( Sik Haw ),이진우 ( Jin Woo Lee ),신민경 ( Min Kyung Shin ),김낙인 ( Nack In Kim ) 대한피부과학회 2009 대한피부과학회지 Vol.47 No.9
Background: Poly-gamma glutamic acid (γ-PGA) is a natural polymer that is synthesized by Bacillus subtilis. Because of the reported anti-tumor effect, γ-PGA and its derivatives have attracted enormous interest in the past few years. Objective: The anti-tumor effects of γ-PGA against ultraviolet B (UVB) were evaluated by irradiating hairless mice with UVB. Methods: The experimental animals were 12-week-old male Albino hairless Skh:HR-1 mice. Thirty-two mice were divided into 4 groups: a chronologic aging (control); irradiation with UVB without γ-PGA administration (T1); irradiation with UVB and 2,000 kDa γ-PGA orally (T2); and irradiation with UVB and 5,000 kDa γ-PGA orally (T3). The irradiation period was 12 weeks. The anti-tumor effect of γ-PGA was evaluated with photographs and skin biopsy. A 51Cr release assay was performed to determine nutural killer cell (NK cell) activity. Results: After 20 weeks of UVB irradiation, seborrheic keratosis, actinic keratosis, Bowen`s disease, squamous cell carcinoma, and basal cell carcinoma were observed on the backs of mice. The most common skin lesion was seborrheic keratosis. γ-PGA showed inhibitory effects on the total number of skin tumors and the premalignant and malignant skin lesions induced by UVB. The NK cell activities showed a tendency to increase based on the molecular weight of γ-PGA. Conclusion: We suggest that γ-PGA shows anti-tumor effects that inhibit the tumor generation induced by UVB, and the antitumor effects are related to the molecular weight of γ-PGA. (Korean J Dermatol 2009;47(9):1012∼1018)
급격한 진행 양상을 보인 비특이적 말초 T-세포 림프종
허식 ( Sik Haw ),유박린 ( Bark Lynn Lew ),심우영 ( Woo Young Sim ) 대한피부과학회 2009 대한피부과학회지 Vol.47 No.2
Peripheral T-cell lymphoma, unspecified (PTCL-U) is an infrequent type of non-Hodgkin`s lymphoma (NHLs), which occurs mainly in adults. The common predilection sites is the peripheral lymph node; however, other sites, such as bone marrow, liver, spleen, and skin, may also be affected. PTCL-U and other types of PTCLs are the most aggressive types of the NHLs. Response to treatment is poor and the overall 5-year survival rates do not surpass 20%. A 57-year-old female presented with a 1-week-history of multiple and painful subcutaneous nodules. The shape and distribution of the nodules were similar to those of erythema nodosum. The histopathologic findings of the skin lesion fitted that described for PTCL-U. In spite of chemotherapy, she expired in 1 month after diagnosis. (Korean J Dermatol 2009;47(2):212∼216)
Jong-Haw Kim,Ok-Kyun Oh,Seungjoo Haam,Chang-Ha Lee,Woo-Sik K 한국탄소학회 2001 Carbon Letters Vol.2 No.1
산업현장에서 취급되고 있는 화학물질 중 휘발성 유기용제는 공업용 원자재로 사용될 뿐만 아니라 신나, 도료,잉크 등 혼합용체, 금속면의 표면처리 재료로도 널리 이용되고 있어 작업자가 접하게될 기회가 아주 높은 물질이다[1]. 이러한 휘발성 유기용제의 대기 확산 문제뿐만 아니라, 페인트 산업 등의 산업폐수에서도 자주 휘발성 유기용제가 발견되며, 가솔린 저장탱크로부터 누출되어 만들어진 오염된 지하수로부터 발견되기도 한다[2].