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CAPD 복막염환자에서 항색포도상 구균의 원발병소의 탐색
이호수,우준희,황승덕 대한내과학회 1997 대한내과학회지 Vol.52 No.4
Objectives: Peritonitis is the most important complication of CAPD, often leading to failure of the technique and recourse to hemodialysis. Staphylococci is the most common organism in bacterial peritonitis associated with CAPD. The importance of the skin as a source of peritonitis causing isolate is suggested. We investigated the importance of anterior nares, hands and catheter exit-site skin as a source of peritonitis in CAPD patients by comparing the plasmid analysis with the bacterial protein analysis. Methods: Thirty patients were suffered by peritonitis which was caused by S. aureus were studied. At presentation with an episode of S. aureus peritonitis, peritoneal dialysates, anterior nares, hands and catheter exit-site skin cultures were obtained. Antibiotics-sensitivity tests was performed and antibiogram of S. aureus which was cultured from peritoneal dialysates was compared with that from the skin. The similar antibiogram was identified in sixteen patients. The isolates were typed by rapid plasmid screen analysis and by means of visual comparison of autoradiographs of 35S-methionine staphylococcal protein analysis. Results: The same plasmid analysis pattern of S. aureus isolated from the skin as that from the peritoneal dialysate was observed in 7patients and bacterial protein analysis pattern in 3patients. In seven patients who had the same plasmid analysis patients, three patients had the same plasmid analysis pattern of S. aureus from peritoneal dialysate as that from anterior nares and four patients had the same plasmid analysis pattern as that from the isolates of the exit-site skin. Conclusion: This study confirms the epidemiological link between carriage of S. aureus and peritonitis in CAPD patients and clinical usefulness of plasmid analysis for the delineation of focus of infection.
두경부암 치료를 위한 6MV X-선 산란판의 제작과 산란분포 측정
이호수,이종걸,이병준,Lee, Ho-Soo,Lee, Jong-Keol,Lee, Byung-Jun 대한방사선치료학회 1995 大韓放射線治療技術學會誌 Vol.7 No.1
It is very useful benefits to use the megavoltage photon beams in deep site tumor radiotherapy for skin sparing effects. But, In some cases of head and mock tumors, it is often necessary to use spoiler for rapid buildup on skin region. A spoiler with tissue equivalent material to be moved between the patients and the collimator can increase or control the skin dose and buildup region due to position and thickness of the spoiler was measured. Then, the effect of spoiler on skin dose and build up region in protruded tumor of head and neck was evaluated quantitatively. The measurements were abtained with PTW 2334 chamber (Markus type) on a polystylene phantom for 6MV x-ray from an accelerator.
MUIRHEAD'S AND HOLLAND'S INEQUALITIES OF MIXED POWER MEANS FOR POSITIVE REAL NUMBERS
이호수,김세정 한국전산응용수학회 2017 Journal of applied mathematics & informatics Vol.35 No.1
We review weighted power means of positive real numbers and see their properties including the convexity and concavity for weights. We study the mixed power means of positive real numbers related to majoriza- tion of weights, which gives us an extension of Muirhead's inequality. Fur- thermore, we generalize Holland's conjecture to the power means.