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Kang, H.M.,Lee, E.K.,Song, B.M.,Heo, G.B.,Jung, J.,Jang, I.,Bae, Y.C.,Jung, S.C.,Lee, Y.J. Elsevier Scientific Pub. Co 2017 Veterinary microbiology Vol.198 No.-
<P>A highly pathogenic avian influenza (HPAI) H5N8 virus was first detected in poultry and wild birds in South Korea in January 2014. Here, we determined the pathogenicity and transmissibility of three different clades of 1-15 viruses in mandarin ducks to examine the potential for wild bird infection. H5N8 (Glade 2.3.4.4) replicated more efficiently in the upper and lower respiratory tract of mandarin ducks than two previously identified H5N1 virus clades (clades 2.2 and 2.3.2.1). However, none of the mandarin ducks infected with H5N8 and H5N1 viruses showed severe clinical signs or mortality, and gross lesions were only observed in a few tissues. Viral replication and shedding were greater in H5N8-infected ducks than in H5N1-infected ducks. Recovery of all viruses from control duck in contact with infected ducks indicated that the highly pathogenic H5 viruses spread horizontally through contact. Taken together, these results suggest that H5N8 viruses spread efficiently in mandarin ducks. Further studies of pathogenicity in wild birds are required to examine possible long-distance dissemination via migration routes. (C) 2016 Elsevier B.V. All rights reserved.</P>
H. pylori 제균 실패율과 clarithromycin 내성률의 일치성
허재형 ( J. H. Heo ),남승우 ( S. W. Nam ),노임환 ( I. H. Roe ),양미라 ( M. R. Yang ),김정택 ( J. T. Kim ),송일환 ( I. H. Song ),임창영 ( C. Y. Lim ),김정원 ( J. W. Kim ),신지현 ( J. H. Shin ) 대한소화기학회 2002 대한소화기학회 춘계학술대회 Vol.2002 No.-
<목적> H. pylori 제균 치료성적을 좌우하는 요소에는 약제와 대상 환자군의 선정, 균검사방법의 차이, 항생제 저항성 등이 중요시되고 있다. 이 중에서도 항생제 저항성은 나라간의 H. pylori 제균 성적을 다르게 하는 대표적인 원인이다. 우리나라는 제균률이 외국보다 저조하여 85%내외로 보고되고 있다. 본 연구의 목적은 H. pylori 제균 실패율과 clarithromycin 내성률을 조사하여 제균 실패 원인으로서의 clarithromycin
포스터 발표 : 위 ; Helicobacter pylori에 대한 포도주(wine)의 항세균 효과
김도형 ( D. H. Kim ),노임환 ( I. H. Roe ),허재형 ( J. H. Heo ),박상현 ( S. H. Park ),남승우 ( S. W. Nam ),임창영 ( C. Y. Lim ),송일한 ( I. H. Song ),김정원 ( J. W. Kim ),명나혜 ( N. H. Myung ),신지현 ( J. H. Shin ) 대한소화기학회 2002 대한소화기학회 춘계학술대회 Vol.2002 No.-
〈목적〉 위장질환을 일으키는 H. pylori를 억제시키는 항생제가 아닌 물질들은 새로운 대체요법으로 최근 들어와서 여러 가지 식용물질들에 대해 탐색되고 있다. 본 연구에서는 포도주의 항세균 효과를 생체내,외 실험으로 연구하였다. 〈방법〉 포도주는 적포도주(프랑스산, pH 3.9, 알코올농도 12%)와 백포도주(마주앙, pH 3.22, 알콜농도 11%)를 이용하였으며 같은 pH와 같은 알코올농도의 소주(참이슬, pH 7.87, 알코올농도 22%)로 비교
H. pylori성 위염에서 위축진행과 Myeloperoxidase(MPO) 유전자 다형성(genetic polymorphism)의 관련성
이만용 ( M. Y. Lee ),노임환 ( I. H. Roe ),양미라 ( M. R. Yang ),남승우 ( S. W. Nam ),허재형 ( J. H. Heo ),임창영 ( C. Y. Lim ),송일한 ( I. H. Song ),김정원 ( J. W. Kim ),신지현 ( J. H. Shin ) 대한소화기학회 2002 대한소화기학회 춘계학술대회 Vol.2002 No.-
<목적> H. pylori는 위 점막에서 많은 중성구들의 침윤이 특징적으로 관찰되는 활동성 위염을 일으키며 중성구들에서 나오는 많은 산소라디칼 등은 상피세포의 손상과 apoptosis을 유도하고 위축성 변화로 진전하는데 주도적인 역할을 한다. 특히 중성구의 myeloperioxidase(MPO)는 산소라디칼의 공격적인 산화적 잠재력을 중폭시키고 monochloramine을 생성하여 위세포의 손상과 위축성 변화를 야기한다고 이해되고 있다. 그러나 위축성위
Heo, J.E.,Yoon, S.,Lee, D.S.,Kong, I.t.,Lee, S.H.,van Putten, M.H.P.M.,Della Valle, M. Elsevier 2016 New astronomy Vol.42 No.-
<P>Gravitational wave bursts in the formation of neutron stars and black holes in energetic core-collapse supernovae (CC-SNe) are of potential interest to LIGO-Virgo and KAGRA. Events nearby are readily discovered using moderately sized telescopes. CC-SNe are competitive with mergers of neutron stars and black holes, if the fraction producing an energetic output in gravitational waves exceeds about 1%. This opportunity motivates the design of a novel Sejong University Core-CollapsE Supernova Survey (SUCCESS), to provide triggers for follow-up searches for gravitational waves. It is based on the 76 cm Sejong university telescope (SUT) for weekly monitoring of nearby star-forming galaxies, i.e., M51, M81-M82 and blue dwarf galaxies from the unified nearby galaxy catalog with an expected yield of a few hundred per year. Optical light curves will be resolved for the true time-of-onset for probes of gravitational waves by broadband time-sliced matched filtering. (C) 2015 Elsevier B.V. All rights reserved.</P>
대학생의 인터넷중독 및 스마트폰 중독 정도와 미술 치료 인식에 대한 조사 연구
박혜원,송승윤,윤하영,이경현,이소영,이지원,진예은,최시온,허은서,황다빈,신주현,이인영 이화여자대학교 간호학회 2018 이화간호학회지 Vol.- No.52
Purpose: Investigate the level of Internet and smart phone addiction of college students and difference of their perception on the art therapy. Method: Data was collected using 4 categories of questionnaires. Participants of this study were 383 college students who are currently attending universities located in seoul, Kyung-Ki and Incheon. The Chi-square test, One-way Analysis of Variance, Scheffé test were performed using IBM SPSS Statistics 23.0 Result: First, the study has established that the status of attending universities, grade, people who living with, age affected the level of Internet addiction of college students. In terms of the level of smart phone addiction of college students, the status of attending universities, gender, age were the affective factors. Second, there was a significant difference on the perception of the advantages of the art therapy and the level of acknowledging it, depending on the level of Internet addiction. Finally, depending on the level of smartphone addiction, there was a significant difference in the level of perception of the art therapy, expectation toward the art therapy and the helpfulness of art therapy. The more the participants are close to the addicted level, the more they want to experience the art therapy. Conclusion: These results suggest. First, it is necessary to use bigger group of participants. Second, it is necessary to improve the research methods for college students. Third, nurse should offer holistic care toward the patients regarding their general characteristics by adapting this study. Finally, it is necessary to improve the art therapy programs for the college students who are addicted to the Internet and smartphone and to develop researches proving the effectiveness of these programs.
Optimal operation of hybrid-SITs under a SBO accident
Jeon, I.S.,Heo, S.,Kang, H.G. North-Holland Pub. Co 2016 Nuclear engineering and design Vol.297 No.-
A hybrid safety injection tank (H-SIT) is designed to enhance the capability of pressurized water reactors against high-pressure accidents which might be caused by the combined accidents accompanied by station blackout (SBO), and is suggested as a useful alternative to electricity-driven motor injection pumps. The main purpose of the H-SIT is to provide coolant to the core so that core safety can be maintained for a longer period. As H-SITs have a limited inventory, their efficient use in cooling down the core is paramount to maximize the available time for long-term cooling component restoration. Therefore, an optimum operation strategy must be developed to support the operators for the most efficient H-SIT use. In this study, the main factors which have to be carefully treated in the development of an operation strategy are first identified. Then the optimal value of each main factor is investigated analytically, a process useful to get the basis of the global optimum points. Based on these analytical optimum points, a thermal-hydraulic analysis using MARS code is performed to get more accurate values and to verify the results of the analytical study. The available time for long-term cooling component restoration is also estimated. Finally, an integrated optimum operation strategy for H-SITs in SBO is suggested.
Multiple novel H5N6 highly pathogenic avian influenza viruses, South Korea, 2016
Lee, E.K.,Song, B.M.,Lee, Y.N.,Heo, G.B.,Bae, Y.C.,Joh, S.J.,Park, S.C.,Choi, K.S.,Lee, H.J.,Jang, I.,Kang, M.S.,Jeong, O.M.,Choi, B.K.,Lee, S.M.,Jeong, S.C.,Park, B.K.,Lee, H.S.,Lee, Y.J. Elsevier Science 2017 INFECTION GENETICS AND EVOLUTION Vol.51 No.-
<P>We report the identification of novel highly pathogenic avian influenza viruses of subtype H5N6, Glade 23.4.4, that presumably originated from China. In addition, reassortant strains with Eurasian lineage low pathogenic avian influenza viruses were isolated in wild birds and poultry in South Korea. The emergence of these novel H5N6 viruses and their circulation among bird populations are of great concern because of the potential for virus dissemination with intercontinental wild bird migration. (C) 2017 Elsevier B.V. All rights reserved.</P>
허순,김원일,왕덕현,이윤경 한국공작기계학회 2000 한국공작기계학회 추계학술대회논문집 Vol.2000 No.-
A use of Titanium alloy as a structural material is increasing lately. Among those titanium alloys, Ti-6A1-4V alloy is the most popular one with taking 2/3 of it's market. Also, Ti-6AI-4V alloy can get the stability of organization and product measure, and the evaluation of the cutting ability and the mechanical characteristics. The point in titanium alloy work is on how treat the heat generated during grinding. Because the heat conductivity of titanium alloy is unnegligibly low, the grinding heat is accumulated in workpiece, and it cause the increasing of grinding grits' wear and the rough grinding surface. So, these characteristics in grinding of titanium alloy will change the mechanical characteristics of the titanium alloy. From this study, the mechanical characteristics of annealed Ti-6A1-4V alloy after grinding was concerned with checking out the bending strength values, and the factor of the change and the difference was analyzed after analyzing the surface roughness and the image from SEM.
Heo, Y.,Kim, E.H.,Kobatake, E.,Nah, J.W.,Ito, Y.,Son, T.I. Korean Society of Industrial and Engineering Chemi 2016 Journal of industrial and engineering chemistry Vol.36 No.-
<P>Gelatin derivative was prepared to coating titanium surface and photo-immobilize rhBMP-2 for improved osteoinduction and function. The conjugation was confirmed by P-31 and H-1 NMR. Photo immobilization of the azide-phosphonate-gelatin (Az-P-Gel) was evaluated by micropatterning. The rate of recombinant human bone morphogenetic protein (rhBMP-2) release was evaluated for performance of Az-P-Gel as a carrier. The water contact angle was determined to characterize Ti surface coated with Az-P-Gel. Ability to induce osteogenesis of Az-P-Gel was evaluated using alkaline phosphatase (ALP) activity assay, Alizarin Red S staining, and calcium colorimetric assay. Our results demonstrate that Ti modified with Az-P-Gel and rhBMP-2 facilitates bone regeneration. (C) 2016 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.</P>