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Measurement of the refractive index of the LAB-based liquid scintillator and acrylic at RENO
Yeo, I S,Jang, J H,Kim, M S,Ahn, J K,Baik, S R,Choi, E I,Choi, Seonho,Choi, Y,Jang, H I,Jang, J S,Jeon, E J,Jeong, I S,Joo, K K,Kim, B C,Kim, H S,Kim, J Y,Kim, S B,Kim, S H,Kim, W,Kim, Y D,Lee, J,Lim, Royal Swedish Academy of Sciences 2010 Physica scripta Vol.82 No.6
<P>In this paper, we describe the first measurement of the refractive index of the linear alkyl benzene (LAB)-based liquid scintillator and acrylic used at the Reactor Experiment for Neutrino Oscillation (RENO). The refractive index of a material is an important optical property and the prism spectrometer is the most common device for measuring the refractive index. Using the minimum deviation technique, which requires an exact measurement of the apex angle, we determined the refractive indices at six different wavelengths and then fitted them. We also compared the refractive index of the LAB-based liquid scintillator with the refractive indices of other liquid scintillator solvents commonly used in reactor neutrino experiments.</P>
이여주 ( Yeo Joo Lee ),초가기 ( Jia Qi Chu ),이서용 ( Seo Yong Lee ),김수미 ( Su Mi Kim ),이광녕 ( Kwang Nyeong Lee ),고영준 ( Young Joon Ko ),이향심 ( Hyang Sim Lee ),조인수 ( In Soo Cho ),남석현 ( Seok Hyun Nam ),박종현 ( Jong H 한국동물위생학회 2011 한국동물위생학회지 (KOJVS) Vol.34 No.2
Foot-and-mouth disease (FMD) is one of the most infectious diseases affecting cloven-hoofed animals including cattle, sheep, goats, and pigs. Seven serotypes of foot-and-mouth disease virus with multiple subtypes within each serotype have been identified until now. In particular, it has been demonstrated that the outbreak of the serotype Asia1 reported from China, Mongolia and North Korea since 2005 is mostly classified into genetic group V. Though it has been recommended that Asia1 Shamir strain can be used as a high priority vaccine by World References Laboratory for FMD, the complete nucleotide sequences of the strain has not yet been determined. In this study, to be prepared for Asia1 type viruses that may be brought into Korea, the complete genome sequence of this vaccine strain Asia1 Shamir including its 5` and 3` non-coding region was identified.
이여주 ( Yeo Joo Lee ),초가기 ( Jia Qi Chu ),이서용 ( Seo Yong Lee ),김수미 ( Su Mi Kim ),이광녕 ( Kwang Nyeong Lee ),고영준 ( Young Joon Ko ),이향심 ( Hyang Sim Lee ),조인수 ( In Soo Cho ),남석현 ( Seok Hyun Nam ),박종현 ( Jong H 한국동물위생학회 2011 한국동물위생학회지 (KOJVS) Vol.34 No.2
Asia1/Shamir that has been recommended by World Reference Laboratory for foot-and-mouth disease (FMD) is used as a vaccine strain, and is being prepared in many countries including Korea. Although it is assumed that vaccine strain Asia1/Shamir has a wide antigenicity, sufficient molecular biological analysis has not been accomplished yet. Complete genome sequence analysis showed that the region with the most severe variations was 1D region of structural protein-coding sequence; particularly amino acid 141~157 residues in 1D region RGD sites for binding to susceptible cells. In addition, five amino acids in 1D region were identified as characteristic sites that are different from other known Asia1 viruses. Asia1/Shamir strain was shown to be genetically similar to group VI that had occurred in the Middle East, but showed low level of genetic similarity to the group V viruses that had occurred in the Southeast Asia and China. It is considered that, if these viruses, group I and II including group V are introduced into Korea, care would be paid in case of inoculating the vaccine strain Shamir available in Korea.
Detection of Quantitative Trait Loci for Growth and Carcass Traits on BTA6 in a Hanwoo Population
Lee, Y.-M.,Lee, Y.S.,Han, C.-M.,Lee, J.-H.,Yeo, J.S.,Kim, Jong-Joo Asian Australasian Association of Animal Productio 2010 Animal Bioscience Vol.23 No.3
The purpose of this study was to detect quantitative trait loci (QTL) for growth and carcass quality traits on BTA6 in a population of Hanwoo cattle. Three hundred and sixty one steers were produced from 39 sires that were sired by 17 grandsires in the two Hanwoo farming branches of the National Livestock Research Institute of Korea, between Spring 2000 and Fall 2002. DNA samples were collected for all of the steers, sires and grandsires, and the phenotypes for six growth and carcass quality traits were measured at 24 months of age. Twelve microsatellite markers were chosen on BTA6 and a linkage map was constructed by using seven of the twelve markers. Then, a chromosome-wide QTL scan was performed by applying an Animal Model, in which effects of QTL alleles within the grand sires were fitted as a random term. Three QTL were detected at the 5% chromosome-wise level for backfat thickness, average daily gain, and final weight. The most likely positions for the QTL were in the proximal region, i.e. 0 cM, 35 cM, and 63 cM, respectively. Also, another QTL for longissimus dorsi muscle area was detected at the 10% chromosome-wise level at 67 cM. These results were, in general, consistent with our previous report, in which candidate gene analyses showed that a SNP near ILSTS035 flanked by BM4621 (62.5 cM) and BMS2460 (81.3 cM) was associated with final weight, carcass weight, average daily gain, and longissimus dorsi muscle area in the same Hanwoo population.
혈관조영상 잠재혈관기형에 대한 선형가속기형 정위방사선수술의 임상경험
김대용(Dae Yong Kim),안용찬(Yong Chan Ahn),이정일(Jung Il Lee),남도현(Do-Hyun Nam),임도훈(Do Hoon Lim),이정은(Jeong Eun Lee),여인환(Inhwan J Yeo),허승재(Seung Jae Huh),노영주(Young Joo Noh),신성수(Seong Soo Shin),홍승철(Seung-Chyul H 대한방사선종양학회 2001 Radiation Oncology Journal Vol.19 No.1
목 적 :혈관조영상 잠재혈관기형(angiographically occult vascular malformation, AOVM)의 치료에 정위방사선수술을 적용하여 병변의 영상학적 반응과 임상 경과, 치료에 대한 부작용을 분석하여 AOVM의 치료 시 정위방사선수술의 역할을 정립하고자 한다. 대상 및 방법 : 1995년 2월부터 1999년 12월까지 AOVM으로 진단 받은 11명(12병변)의 환자에 대하여 선형가속기를 이용한 정위방사선수술을 시행하였다. 모든 병변은 자기공명영상에서 병변의 중심부에는 이질적인 고신호를 보이며, 저신호의 테두리로 둘러 쌓여 경계가 분명한 혈관기형 소견을 보였다. 정위방사선수술 시 처방선량은 회전중심점 선량 기준으로 67∼80% (중앙값 80%) 등선량곡면에 13∼25 Gy (중앙값 16 Gy)이었으며, 모두 단일 회전중심점을 이용하였고, 8∼20 mm (중앙값 14 mm) 크기의 원형 콜리메이터를 사용하였다. 결 과 :추적관찰 기간은 12∼56개월(중앙값 42개월)이었다. 재출혈이 일어난 경우는 3예로 치료 후 5, 6, 12개월 때 각 1차례씩 발생하였고 이후 추가적인 재출혈은 없었다. 정위방사선수술로 인한 조직괴사는 2예에서 발생하였으며, 모두 영구적인 신경학적 후유증을 초래하였다. 임상증세를 동반하지 않은 채 T2 강조영상에서 병변 주위의 부종이 관찰된 경우도 1예 발생하였다. 결 론 :정위방사선수술을 이용한 AOVM의 치료는 재출혈을 효과적으로 방지할 수 있는 치료방법으로 생각된다. 그러나 동정맥기형에 비하여 신경학적 후유증이 발생할 확률이 높기 때문에 치료 환자의 선택과 처방선량의 결정 시에는 보다 신중한 고려가 필요하다 Purpose :To establish the role of stereotactic radiosurgery (SRS) for the treatment of patients with angiographically occult vascular malformation (AOVM). Materials and Methods : Eleven patients (12 lesions) with AOVM were treated with linear acceleratorbased SRS between February 1995 and December 1999. A magnetic resonance imaging of each patients showed well- circumscribed vascula r lesion with reticulated core of heterogeneous signal intensity and peripheral rim of low signal intensity. SRS were performed with the median peripheral dose of 16 Gy (range 13∼25). A single isocenter was used with median collimator size of 14 mm (range 8∼20) diameter. Results :With a median follow- up period of 42 months (range 12∼56), rebleeding occurred in 3 AOVMs at 5, 6 and 12 months after SRS but no further bleeding did. Two patients experienced radiation- induced necrosis associated with permanent neurologic deficit and one patient showed transient edema of increased T2 signal intensity. Conclusion : SRS may be effective for the prevention of rebleeding in AOVM located in surgically inaccessible region of the brain. Careful consideration should be needed in the decision of case selection and dose prescription because the incidence of radiation- induced complications is too high to be accepted.