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Prevalence of Toxoplasma gondii Infection in Feral Cats in Seoul, Korea.
Lee, Sang-Eun,Kim, Neung-Hee,Chae, Hee-Sun,Cho, Shin-Hyeong,Nam, Ho-Woo,Lee, Won-Ja,Kim, Sun-Heung,Lee, Jung-Hark American Society of Parasitologists] 2011 The Journal of parasitology Vol.97 No.1
<P>Abstract The present study assessed the prevalence of Toxoplasma gondii infection in feral cat populations in Seoul using enzyme-linked immunosorbent assay (ELISA) and nested polymerase chain reaction (PCR). A total of 456 feral cats from 17 wards in Seoul was surveyed. The overall prevalence of T. gondii infection was 15.8% (69/456) by ELISA and 17.5% (80/456) by PCR; by gender, 17% (44/259) by ELISA and 16.2% (42/259) by PCR in males and 14.3% (28/196) by ELISA and 19.4% (38/196) by PCR in females. On a baseline of the Han River, prevalence was 15.1% (29/192) by ELISA and 15.6% (30/192) by PCR in the upper region and 16.4% (43/264) by ELISA and 18.9% (50/264) by PCR in the lower area. This suggested that toxoplasmosis is widespread throughout Seoul's feral cat population and it is critical that the city institute policies for the control of the feral cat population to reduce the risk of toxoplasmosis transmission to animals, including humans.</P>
An Integrated Neural Network Model for Domain Action Determination in Goal-Oriented Dialogues
( Hyun Jung Lee ),( Hark Soo Kim ),( Jung Yun Seo ) 한국정보처리학회 2013 Journal of information processing systems Vol.9 No.2
A speaker`s intentions can be represented by domain actions (domain-independent speech act and domain-dependent concept sequence pairs). Therefore, it is essential that domain actions be determined when implementing dialogue systems because a dialogue system should determine users` intentions from their utterances and should create counterpart intentions to the users` intentions. In this paper, a neural network model is proposed for classifying a user`s domain actions and planning a system`s domain actions. An integrated neural network model is proposed for simultaneously determining user and system domain actions using the same framework. The proposed model performed better than previous non-integrated models in an experiment using a goal-oriented dialogue corpus. This result shows that the proposed integration method contributes to improving domain action determination performance.
최효정 ( Hyo Jung Choi ),홍인석 ( In Suk Hong ),최윤화 ( Yoon Hwa Choi ),이윤희 ( Youn Hui Lee ),김창기 ( Chang Gi Kim ),이덕주 ( Duck Joo Lee ),이정학 ( Jung Hark Lee ) 한국동물위생학회 2007 한국동물위생학회지 (KOJVS) Vol.30 No.3
This study was carried out to investigate the sorts and the quantity of preservatives in 2,575 samples of 10 kind products which had been sold in the markets from 2004 to 2006. These analyses were done using HPLC. By the result of investigation, the most frequently detected preservative was sorbic acid in 222 cases. Detection rate of sorbic acid was 8.62%. Dehydroacetic acid(DHA) was detected in 8 cases among 36 butter samples and one of 278 sausage samples. Detection rate of DHA was 0.0035%. In detail, the detection rate was 71.5%(88/123) in dried meat, 22.2%(8/36) in processed butter, 17.3%(48/278) in sausage, 10.4%(17/163) in canned meat etc., 7.9%(49/619) in ham, 7.48%(19/254) in processed cheese and 4%(2/49) in bacon, respectively. The content range of sorbic acid and its average in each of the processed meat and milk products are as follows: ND~1.64g/㎏, 0.26 g/kg in dried meat, ND~1.34g/㎏, 0.114g/㎏ in sausage, ND~0.41g/㎏, 0.015g/㎏ in canned meat etc., ND~1.37g/㎏, 0.038g/㎏ in ham, ND~1.63g/㎏, 0.056g/㎏ in processed cheese, ND~0.57g/㎏, 0.022g/㎏ in bacon, respectively. Amount of detected DHA was less than 0.23 g/kg, and its average was 0.022 g/kg in processed butter.
Heung-Ryul Lee,Hye Jung An,Young Gon You,Jangha Lee,Chee Hark Harn 한국육종학회 2012 한국육종학회 심포지엄 Vol.2012 No.07
ChiVMV is one of the most destructive pepper pathogens in the East Asia. The resistant cultivar against ChiVMV is necessary to control the ChiVMV infection to pepper farm. However, the genetic source resistant ChiVMV was not fully identified yet and until now, the only recessive resistance gene has been recognized. In order to study more on the inheritance of the resistance and to establish a breeding program pertinent to ChiVMV resistance, firstly, we screened about 30 lines from several foreign countries, and found a new resistant line from several inoculation tests. Here, we report a new dominantly resistant chili pepper. Secondly, we found two AFLP fragments linked to the dominant resistance, which was located on the pepper chromosome number 6. The newly discovered dominant markers will help develop a new resistant pepper cultivar to ChiVMV.
Jung, Min,Shin, Sun-Hee,Park, Jeong-Mi,Lee, Sung-Nam,Lee, Mi-Yeon,Ryu, Ki-Hyun,Paek, Kee-Yoeup,Harn, Chee-Hark The Korean Society of Plant Biotechnology 2011 Plant biotechnology reports Vol.5 No.2
In order to establish a reliable and highly efficient method for genetic transformation of pepper, a monitoring system featuring GFP (green fluorescent protein) as a report marker was applied to Agrobacteriummediated transformation. A callus-induced transformation (CIT) system was used to transform the GFP gene. GFP expression was observed in all tissues of $T_0$, $T_1$ and $T_2$ peppers, constituting the first instance in which the whole pepper plant has exhibited GFP fluorescence. A total of 38 T0 peppers were obtained from 4,200 explants. The transformation rate ranged from 0.47 to 1.83% depending on the genotype, which was higher than that obtained by CIT without the GFP monitoring system. This technique could enhance selection power by monitoring GFP expression at the early stage of callus in vitro. The detection of GFP expression in the callus led to successful identification of the shoot that contained the transgene. Thus, this technique saved lots of time and money for conducting the genetic transformation process of pepper. In addition, a co-transformation technique was applied to the target transgene, CaCS (encoding capsaicinoid synthetase of Capsicum) along with GFP. Paprika varieties were transformed by the CaCS::GFP construct, and GFP expression in callus tissues of paprika was monitored to select the right transformant.