서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)

김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1

In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.

처분장근처에서 침식에 의한 Sr 화학종의 평형

조윤정,김성현,이인화,김시욱,고문주,박성규,이범규 조선대학교 환경공해연구소 2000 環境公害硏究 Vol.16 No.1

Leaching and adsorption equilibria of Sr Chemical Species from the near field of a repository has been studied in solidified cement with Fe and oxidized Fe. The absorption percent, Ads %, and distribution coefficient, K_(d) were calculated using equilibrium concentration to predict the extent of leaching and adsorption. In the mixed aqueous solutions the Ads % increase as Cement(C)/Water(W) ratios increase and K_(d) was decreased for Sr. These behaviors were discussed by adsorption and equilibrium of spiked ions. Oxides Fe promoted the adsorption of spiked ions, but pure Fe had no effect. E_(h) values were also estimated and discussed to elucidate oxidation-reduction environment of experimental system.

처분장근처에서 침식에의한 Sr 화학종의 평형

조윤정,김성현,이인화,김시욱,고문주,박성규,이범규 조선대학교 환경연구소 2000 環境硏究 Vol.16 No.1

Leaching and adsorption equilibria of Sr Chemical Species from the near field of a repository has been studied in solidified cement with Fe and oxidized Fe. The absorption percent, Ads %, and distribution coefficient, K_d were calculated using equilibrium concentration to predict the extent of leaching and adsorption. In the mixed aqueous solutions the Ads % increase as Cement(C)/Water(W) ratios increase and K_d was decreased for Sr. These behaviors were discussed by adsorption and equilibrium of spiked ions. Oxides Fe promoted adsorption of spiked ions, but pure Fe had no effect. E_h values were also estimated and discussed to elucidate oxidation-reduction environment of experimental system.

복령(茯笭)의 지방산 조성 및 항미생물 활성

조덕봉,마상조,최춘순,이송주,최옥범 광주보건대학 1997 論文集 Vol.22 No.-

The various components and antimicrobial activities of Pona cocos were studied to obtain the basic data as giving many applications. In the results of analysis of fatty acids compositions, it consist of stearic acid as saturated fatty acid, and oleic acid, linoleic acid as unsaturated one. The Pona cocos was extracted with methanoi and its extracts were determined to be antimicrobial activities against bacteria and yeast. Methanoi extracts of the Poria cocos showed stronger antimicrobial activities on Staphylococcus aureus, Staphylococcus epidermidis. Bacillus subtilis, Micrococcus luteus, Leuconostoc mesenteroides, Escherichia coli, Salmonella typhimurium, and Pseudomonas aeruginosa than control, benzoic acid. In conclusion, Poria cocos extracts showed antimicrobial activities and will be required to isolate and identify substance with antimicrobial activity as functional materials.

하악골에 발생된 Low grade 골육종:증례보고

조현이,정종철,김호성,최재욱,성대경,서지훈,김성범,이계혁 大韓顎顔面成形再建外科學會 2000 Maxillofacial Plastic Reconstructive Surgery Vol.22 No.1

Osteosarcoma is a primary malignant tumor arising most often in the long bone, but rare in jaw bone. Especially osteogenic sarcoma of the mandible is a rare tumor, comprising less than 0.5% of all head and neck tumors. Osteosarcoma occurs cheifly in young persons, and presenting very survival rates. Histopathologically this tumor can be classified three types, osteoblastic, fibroblastic, chondroblastic and classified from low grade to high grade by anaplasia or mitosis of the tumor cells. Sometimes, the exact diagnosis of osteosarcoma is difficult especially in low grade osteosarcoma, even if clinical or radiographical findings suggest to osteosarcoma. So suspcious to malignant bone tumor in clinical or radiological findings, biopsy should be taked from deep portion and multiple area, and sharing the patient history and radiographs with pathologist will assist in the development of the diagnosis. We report a case of low grade osteosarcoma on the mandible initially difficulty in accurate diagnosis. The patient visited our hospital for routine dental treatment but radiographic findings displayed ill-defined radiolucency with osteoid formation on the mandible. Final diagnosis was difficulty in initial biopsy but subsequent biopsy taked from deep portion presented infiltrative growth and mitosis of the tumor cell in some area with small osteoid bone formation, so we could reach final diagnosis as low grade sarcoma. We treated this patient with bloc resection of the mandible and immediate reconstruction with iliac corticocancellous block.

공공건설프로젝트에서 효율적인 건설분쟁처리에 대한 연구

이상범,조영준,김정길 동의대학교 산업기술개발연구소 2005 産業技術硏究誌 Vol.19 No.-

A In Korea when change order was occurred, contract amount may be adjusted according to Government Contract Act. If the requirement of privy is fully accepted, conflict can't arise. Because of a misunderstanding and misappropriation of contract, a difference between the contract condition and job site, an errors & omissions of the design document, the contract disputes has been increased since the Seoul 2nd Metro Project claims alleged by 6 Contractors at Feb. 1998. To mitigate and to resolve effectively construction dispute, training of construction participants, introduction of coercive arbitration clause in public construction, adaption of the lowest bidding system, participation of construction engineer in arbitration process were suggested in this paper.

당뇨병환자에서 뇨증 Fibronectin농도의 증가에 관한 연구

한승범,조준승,손건영,서성문,박근용,조성래,박규영,박정모,이인규,여준기 啓明大學校 醫科大學 1994 계명의대학술지 Vol.13 No.4

Plasma fibronectin is an α₂-glyoprotein, which is produced by vascular endothelial cells. Raised level of plasma fibronectin has been observed in diabetic patients particularly in the presence of microvascular complications. However, no available data exist about urine level of this glycoprotein in diabetic patients. We measured urine fibronectin level by ELISA methods in 54 diabetic patients who have microvascular comlications or not. The following results were obtained. 1) Urine fibronectin level(㎍/g creatinine) in diabetic group(1740.0±678.0) is increased compaired with those in normal control group(471.0±59.0). but this results were not significantly different among two groups(P>0.05). 2) Urine fibronectin level(㎍/g creatinine) was significantly increased in patients with nephropathy (6188.0±3144.0) compared with those in normal control group(471.0±59.0) and patients without nephropathy(645.0±251.0)(P<0.001). 3) There were a significant correlation between BUN, creatinine, creatinine clearance, 24hr urine total protein and urine fibronectin level in diabetic patients. Our data suggest that urine fibronectin excretion level might be used as a sensitive guide for diabectic nephropathy.

Kohonen의 자율 학습 신경망칩을 위한 OTA 곱셈기와 수정된 Gilbert 곱셈기의 비교

이상범,조용범 건국대학교 1995 學術誌 Vol.39 No.2

This paper compares characteristics of OTA multiplier and the modified Gilbert multiplier for neural chips of Kohonen's SOM algorithm. To design neural chip, it is necessary to reduce the size of circuits because a massive number of imterconnectlons between neurons are used. For the comparision, the performance of two multipliers was tested by SPICE circuit simulations. OTA multiplier has approximately a half size of the modified Gilbert multiplier. OTA multiplier also has wider operation range from -4.8V to 4.8V compared with the modified Gilbert multiplier ranging from -0.5V to 0.5V. Test spice cells for OTA multiplier-based neural processor and the modified Gilbert multiplier-based neural processor were also desgined and tested for comparisons. The entire operation speed of test slice cells was that OTA multiplier - based neural processor had 27ns rising time and 55ns failing time, and the modified Gilbert multiplier-based neural processor had 53ns rising time and 60ns falling time. The proposed OTA multiplier can be used for highspeed and high integrated applications.

微生物에 의한 n-alkanes의 資化와 乳化

마상조,김동필,조덕봉,최옥범 광주보건대학 1996 論文集 Vol.21 No.-

A long-chain n-alkane-using microorganism was isolated from a soil sample, and was identified to belong to genus Acinetobactor. This strain Ma-1 grew on n-alkanes ranging in carbon length from C_(13) to C_(44) as a sole carbon source. This strain could grow on the solid hydrocarbons without addition of any detergents. The growth and the hydrocarbon use were enhanced by the addition of a surface active agent, Plysurf A210G. A strain Ma-I culture isolated in our laboratory has been shown to produce an extracellular biopolymer with emulsifying properties when grown on a mixture of linear hydrocarbons. The substrates supporting good growth gave good polymer production. The polymers recovered from the substrates were found to be complex molecules or mixtures with a protein, a lipid, and a carbohydrate moiety.

Lutembacher 증후군 환자 증례 보고

김성범,서정주,곽철훈,김상민,이보라,민선경,황은구,김용인,조욱현,최석구 인제대학교 2008 仁濟醫學 Vol.29 No.-

Lutembacher's syndrome is rare combination of mitral stenosis (MS) and atrial septal defect (ASD). The hemodynamic interplay between the MS and ASD leads to wide variation of clinical presentation. Here we describe a 43-year-old female with Lutembacher's syndrome and tricuspid regurgitation with pulmonary hypertension, who underwent direct closure of ASD and tricuspid valvuloplasty successfully. We also reviewed other literatures in an effort to increase awareness of this condition.