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Baoping Guo,Zhuangzhi Zhang,Xueting Zheng,Yongzhong Guo,Li Zhao,Ren Cai,Bingjie Wang,Mei Yang,Xi Shou,Wenbao Zhang,Bin Jia 대한기생충학ㆍ열대의학회 2019 The Korean Journal of Parasitology Vol.57 No.2
Echinococcus granulosus is an important zoonotic parasite globally causing cystic echinococcosis (CE) in hu- mans and animals. In this study, prevalence of CE and variation of cox1 gene sequence were analyzed with isolates E. granulosus collected from different areas in northern Xinjiang, China. The survey showed that 3.5% of sheep and 4.1% of cattle were infected with CE. Fragment of cox1 was amplified from all the positive sheep and cattle samples by PCR. In addition, 26 positive samples across the 4 areas were included. The isolates were all E. granulosus sensu stricto (s.s.) containing 15 haplotypes (Hap1-15), and clustered into 2 genotypes, G1 (90.1%, 91/101) and G3 (9.9%, 10/101). Hap1 was the most common haplotype (48.5%, 49/101). Hap9 were found in humans samples, indicating that sheep and cattle reservoir human CE. It is indicate that E. granulosus may impact on control of CE in livestock and humans in the region.
Compact Dual-Wideband Bandpass Filter with Multimode Resonator
Haiwen Liu,Shen Li,Xuehui Guan,Baoping Ren,Jiuhuai Lei,yanwang 한국전자통신연구원 2014 ETRI Journal Vol.36 No.1
A microstrip dual-wideband bandpass filter using amultimode resonator (MMR) is proposed in this letter. Theproposed MMR loaded with a T-shaped open-ended stub and ashort-ended stub exhibits triple mode characteristics, and asynthesis method is developed to illustrate the wide passbandwith independently controllable center frequencies andbandwidths. To verify this design methodology, a dualwidebandfilter with fractional bandwidths of 19.1% and27.9% is designed and fabricated. The measured results agreewith the simulations.