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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.
해조류 에탄올 농도별 추출물의 항돌연변이원성 및 항균성
박제석,오명철,오창경,현재석,김봉오,김수현 濟州大學校工科大學産業技術硏究所 1996 尖端技術硏究所論文集 Vol.7 No.2
톳. 미역 및 다시마의 에탄올 농도별 추출물이 MMS. ICR191 및 sodium azide에 의해 유도되는 돌연변이원성의 억제효과 및 E. coli, B. subtilis 및 S. serevisiae에 대한 항균효과를 검정하였다. 톳의 90% 에탄올 추출물은 MMS와 ICR191에 대한 항돌연변이 원성이 각각 70 및 95% 이상으로 매우 높았으나, sodium azide에 대한 항돌연변이원성은 없었다. 미역의 에탄올 농도별 추출물은 30∼90% 에탄올 추출물에서 50% 이상의 항돌연변이 효과를 보았으나 MMS와 sodium azide에 대한 항돌연변이 효과는 없었다. 다시마의 30∼90% 에탄올 추출물의 ICR191에 대한 항돌연변이 효과는 70% 이상이었으나, MMS와 sodium azide에 대한 효과는 없었다. 에탄올 농도별 톳의 추출물들에 대한 항균성 검색 결과 70과 90% 추출물들이 E. coli와 B. subtilis에 대하여 뚜렷한 항균효과는 미역 추출물 보다 다시마의 추출물이 더욱 요과적이었다. 미역 추출물은 50% 추출물만이 S. cerevisiae에 대한 성장저지효과를 나타낸 반면, 다시마 추출물은 90% 에탄올 추출물에서는 시험된 모든 공시균주에 대하여, 그리고 70% 에탄올 추출물에서는 E. coli와 B. sutilis에 대하여 높은 성장저지효과를 나타내었다. Desmutagenic against MMS-, ICR191- and sodium azide-induced mutations, and antimicrobial effects against Escherichia coli, Bacillus subtilis and Saccharomyces cerevisiae by the extracts from Hizikia fusiforme. Laminaria japonica and Undaria pinnatifida with ethanol of a different concentrations were investigated. Desmutagenic effects against MMS and ICR191 of 90% ethanol extracts from Hizikia fusiforme were up 70 and 95%. respectively. no against sodium azide. Desmutagenic effects against ICR191 of 30∼90% ethanol extracts from Undaria pinnatifida and Laminaria japonica were up to 50 and 70%. respectively. but no against sodium azide and MMS. Antimicrobial effect of 70 and 90% ethanol extracts from Hizikia fusiforme had potent antimicrobial activities against E. coli and B. subtilis. Ethanol extracts from Laminaria japonica showed more effective antimicrobial effects than those from Undaria pinnatifida. Only 50% ethanol extract from Undaria pinnatifida showed growth inhibition effect against S. cerevisiae. Seventy percent ethanol extract from Laminaria japonica showed growth inhibition effect against all strains tested. while 90% ethanol extract showed against E. coli and B. subtilis.
朴秀峰,金在珥 東新大學校 1995 論文集 Vol.7 No.-
In the learning of the neural network, Learning rate largely depends on the algorithm of network implementation, and is closely related to the weight length and computing speed. In this paper, we propose an algorithm to design digital logic systems and hardware using weighted control neural network with neuro-fuzzy architecture. The network for weight-control based on the mathmetical proposition has been proposed. The proposition use AT MOST n, AT LEAST n. The proposed algorithm has been applied to design JK flip-flop and ROM. The simulations shows that the proposed algorithm can simplify design of hardware, improve processing speed of system and implement synapse with good learning in the large neural network.
기약 Tensor연산자와 Wigner-Eckart정리에 대하여
박봉두,고재걸 慶北大學校 1970 論文集 Vol.14 No.-
The commutation relations of irreducible tensor operators with the total angular monentum, which are equivalent to the definition with the rotational transformation formula, have been derived. By these commuation relations we have surveyed simple properties of the irreducible tensor operators and Wigner-Eckart theorem. Also the analogy between the irreducible tensor algebra and the vector addition of the total angular momenta, to some extent, has been tried. Lastly, we have found that certain atomic physics problems could be attacked with this tensor method with the aid of Clebsch-Gordan coefficients.
수영이 정신지체인의 체력요인과 도파민 농도에 미치는 영향
박봉섭,변재종,이창규 한국특수체육학회 2004 한국특수체육학회지 Vol.12 No.2
The purpose of this study was to find out the effects of swimming exercise programs on muscular function, cardiorespiratory function, agility, flexibility, balance, and dopamine concentration in the mentally retarded. The subjects were 5 mentally retarded students of high school for special education. The physical fitness factor and dopamine concentration were measured before and after 22-week swimming exercise(2 times/week, 60minutes/session). The statistical procedures used to the analysis were paired t-test. The results were as follows; First, the increase of physical fitness factors was shown in the cardiorespiratory function and flexibility. Second, the increase of dopamine concentration was shown. It could be concluded in this study that swimming exercise program had significant effects on the improvement of physical fitness and dopamine concentration of the mentally retarded.