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항생제 다제내성균 Staphylococcus aureus SA2로부터 분리한 테트라사이클린 내성 플라스미드 pKH6의 염기서열
이대운,윤성준,김우구,신철교,임성환,이백락,문경호 한국미생물생명공학회 ( 구 한국산업미생물학회 ) 1996 한국미생물·생명공학회지 Vol.24 No.4
한국에서 임산균주로부터 분리한 테트라사이클린(Tc) 내성 플라스미드 pKH6의 전체 염기서열을 결정하여 가장 대표적인 Tc 내성 플라스미드인 pT181과 비교하였다. pKH6의 전체 길이는 4439bp로 pT181과 동일하게 나타났으며 염기서열은 7개의 염기에서 차이를 보였다. 전부 다 염기쌍이 치환된 형태로 나타났으며 그 중 3개는 coding 부위에서 일어났다. coding 부위에서 일어난 경우에도 1개는 동일한 아미노산을 coding 하였기 때문에 pT181과 차이가 없었으며 RepC와 Pre 단백질에 있어 각각 1개의 아미노산에서 차이를 나타내었다. The complete nucleotide sequence of pKH6, a tetracycline-resistance (Tc^r) plasmid isolated from multi-drug resistant Staphlococcus aureus SA2, has been determined and compared with that of the staphylococcal Tc^r plasmid pT181. The nucleotide sequences of the two plasmids are in agreement except for 7 nucleotides. All differences are caused by base pair substitutions. Among 6 substitutions, 3 occurred in coding regions. However, only tow base substitutions in coding regions resulted in changes of amino acid sequences in two different ORFs of repC and Pre proteins.
허성관,신운철 대구대학교 산업기술연구소 1984 産業技術硏究 Vol.3 No.-
According to above analyses, the investment of Jewelery and Precious Metals is Valueless in Stable economy. Jewelery and Precious Metals Can not be a object of investment or speculative object, but only have nature of property to be succeeded permanently by future generations. Means are meaningless without keeping its original value. That is, Jewelery and Precious Metals have nature of property. For the sake of building up national strength and being a economically powerful country, money have to be deposited and it must be circulated for the state economy.
음낭외상시 고환파열에 대한 초음파 검사의 진단적 유용성
김경영,한동준,신대은,노준,문형윤,임동훈,김철성,박성운 朝鮮大學校 附設 醫學硏究所 2007 The Medical Journal of Chosun University Vol.32 No.3
Purpose: We determined the use of scrotal ultrasonography in the initial diagnosis and management of testicular injuries due to blunt scrotal trauma. Mateiials and Methods: We reviewed 54 patients of scrotal trauma in the last 8 years. Forty patients were evaluated by ultrasonography preoperatively. A heterogeneous echo pattern of the testicular parenchyma with loss of oval shape, contour definition was the basis for diagnosis of testicular rupture. Among them, 33 cases underwent scrotal exploration and 7 cases were managed conservatively. The remaining 14 patients were evaluated only by physical examination, 8 patients of them were explored immediately because of suspicious testicular mpture. The accuracy of ultrasonography were determined by comparing radiographic interpretations with intraoperative findings. Results: Among the 33 patients who were evaluated by ultrasonography and explored immediately, there were 26 suspected testicular ruptures on ultrasonography. Surgical exploration revealed testicular rupture in 23 and simple hematoma in 10. The testicular rupture was correctly diagnosed by ultrasonography in the 22 cases, and there were 4 false-positive and 1 false-negative diagnoses of testicular rupture. The sensivity and specificity for the diagnosis of testicular rupture are 96% and 60%, and the positive and negative predictive values are 85% and 86%, respectively, Conclusions: Scrotal ultrasonography, with the main radiographic finding of a heterogeneous echo pattern of the testicular parenchyma with loss of oval shape, contour definition, is highly sensitive on the diagnosis of testicular rupture. And it increases the salvage rate for testicular rupture with preservation of the testicular function and prevents delayed complications of chronic pain, atrophy and orchiectomy associated with missed testicular rupture.
Development of BPH Resistant Rice Variety for Environmental Friendly Cultivation
Woon-Chul Shin,Ki-Young Kim,Jong-Cheol Ko,Young-Jun Mo,Jeong-Kwon Nam,Mun-Sik Shin,Bo-Kyeong Kim,Jae-Kwon Ko 한국작물학회 2010 한국작물학회 학술발표대회 논문집 Vol.2010 No.04
BPH(Brown planthopper, Nilaparvata lugens Stål) is a major insect of rice and give a lot of damages around Korea, Japan and East-West Asia. BPH often causes heavy losses of up to 60% of rice crop yields in susceptible cultivars. Especially, increase of the environmental friendly cultivation in South Korea has caused the outbreak of BPH rapidly. But few resistant varieties in Korea have known until now. Utilization of R genes in breeding programs has been the most effective and economical strategy for controlling insect resistance. It is reported that Bph1 gene is located on a long side of chromosome 12 and linked to bph2 among reported 18 R genes. BPH resistant "Iksan529" was derived from a cross between HR22538-GHB-36-4(bph2) and Iksan471 at Department of Rice and Winter Cereal Crop, NICS, RDA. Culm length of Iksan529 is 74cm and it shows moderate resistance to blast, and wide spectrum resistance to bacterial blight pathogen(K1, K2, K3) and stripe virus. Especially, Iksan529 was identified bph2 gene using KPM2(co-dominant CAPS marker) and KPM4(resistant-associated marker). When Iksan529 seedling were infested at 2nd and 3rd instar stages of BPH nymphs(Bio-type 1), it showed resistance at one month after infest. Iksan529 will be tested local adaptability for 3 years and deveoped for environmental friendly cultivation.
Woon-Chul Shin,So-Hyeon Baek,Chun-Sun Seo,Ki-Young Kim,Jong-Cheol Ko,Young-Jun Mo,Jeong-Kwon Nam,Bo-Kyeong Kim,Jae-Kwon Ko 한국작물학회 2010 한국작물학회 학술발표대회 논문집 Vol.2010 No.04
Resveratrol (3,5,4'-trihydroxystilbene) is a naturally occurring antioxidant found in grapes, grape products such as wine, and some other botanical sources, like peanuts. In grapes, resveratrol occurs both as free resveratrol and piceid, which is 3-β-mono-D-glucoside of resveratrol. In recent years, research on resveratrol has discovered several beneficial biological effects of this compound to human health. These include anticancer activity, cardioprotection, antioxidant activity, inhibition of platelet aggregation, and antiinflammatory activity. So, we conducted this study to develop transgenic rice plants an enhanced phytochemicals associated with reduced cancer risk by overexpression of a peanut RS gene and selected 2 lines, 'Iksan 515' and 'Iksan 526', according to agronomic traits of rice plant and resveratrol contents in rice grain. Resveratrol content of Iksan 515 was increased by 2.3 times until 5 days after seedling and decreased at 7 days after seedling. Expression level of RS gene according to seedling days by Real-time PCR increased until 5 days, but decreased by half at 7 days. Now, we are planning to analyze medicinal function of these high resveratrol rices and development of cultivation technology to increase resveratrol content. Therefore, transgenic rices producing high resveratrol can be used to develop new rices with a cancer chemopreventive role in human medicine.
신운철(Woon-Chul Shin),김우재(Woo-Jae Kim),박현수(Hyun-Su Park),김보경(Bo-Kyeong Kim),강위금(Ui-Gum Kang),남민희(Min-Hee Nam),곽도연(Do-Yeon Kwak),남정권(Jeong-Kwon Nam),하기용(Ki-Yong Ha),백만기(Man-Kee Baek),김기영(Ki-Young Kim),김대 한국육종학회 2015 한국육종학회지 Vol.47 No.4
‘Ondami’, a japonica rice cultivar developed from a cross between Hitomebore having a high grain quality and Sangju27 adaptable to southern mid-mountainous area was developed by the rice breeding team of Sangju Substation, NICS, RDA in 2013. The heading date of ‘Ondami’ is july 27 which is same with ‘Odae’ in Southern mid-mountainous area, mid mountainous, southern alpine area and north-east coastal area of South Korea. ‘Ondami’ has 70cm culm length, 19cm panicle length which is 2cm shorter than those of ‘Odae’ and 78 spikelets per panicle. In reaction to biotic and abiotic stresses, it shows strong resistance to blast, but is susceptible to bacterial blight, virus diseases, and insect pests. The milled rice of ‘Ondami’ exhibits translucent and, relatively clear non-glutinous endosperm, and medium short grain shape. This variety has a higher head rice milling recovery ratio(73.1%) and lower amylose content(18.8%) than that of ‘Odae’. The milled rice yield performance of this variety was about 5.29 MT/ha in ordinary cultivation of local adaptability test for three years. ‘Ondami’ could be adaptable to Southern mid-mountainous area, mid mountainous, southern alpine area and north-east coastal area of South Korea.
Park, Chul-Min,Ahn, Won-Ju,Jo, Woong-Kyu,Song, Jin-Hun,Oh, Chang-Yeop,Jeong, Young-Shin,Chung, Min-Chul,Park, Kwon-Pil,Kim, Ki-Joong,Jeong, Woon-Jo,Sohn, Bo-Kyun,Jung, Sang-Chul,Lee, Do-Jin,Ahn, Byeon American Scientific Publishers 2015 Journal of Nanoscience and Nanotechnology Vol.15 No.1
<P>The greenhouse effect of carbon dioxide (CO2) has been recognized as one of the most serious problems in the world. Conversion of CO2 to methyl alcohol (CH3OH) was studied using catalytic chemical methods. Honeycomb-typed monolith used as catalyst support was 400 cell/inch2. Pretreatment of the monolith surface was carried out by thermal treatment and acid treatment. Monolith-supported nanosized CuO-ZnO catalysts were prepared by wash-coat method. The prepared catalysts were characterized by using SEM, TEM, and XRD. The catalytic activity for CO2 hydrogenation to CH3OH was investigated using a flow-type reactor with varying reaction temperature, reaction pressure and contact time. Conversion of CO2 was increased with increasing reaction temperature, but selectivity to CH3OH was decreased. Optimum reaction temperature was about 250 degrees C under 20 atm. Because of the reverse water gas shift reaction.</P>