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Optimum Design of the Interdigitated CB Structure
qiang, Yang-Hong,bi, Chen-Xing The Institute of Electronics and Information Engin 2002 Journal of semiconductor technology and science Vol.2 No.3
Some measures are provided for the optimum design of specific on-resistance $R_{on}$ and breakdown-voltage $V_B$ of interdigitated CB (Composite Buffer) MOSFET, including introducing opposite type impurity into the P region near the $N_+$contact, separating P region from N region with an oxide film, and a groove in the N region near the $P_+$ contact. The new relationship between the $R_{on}$ and $V_B$, which proved by numerical device simulation, are more exact and minute than the qualitative results before.
rs10505474 and rs7837328 at 8q24 Cumulatively Confer Risk of Prostate Cancer in Northern Han Chinese
Zhang, Lin-Lin,Sun, Liang,Zhu, Xiao-Quan,Xu, Yong,Yang, Kuo,Yang, Fan,Yang, Yi-Ge,Chen, Guo-Qiang,Fu, Ji-Cheng,Zheng, Chen-Guang,Li, Ying,Mu, Xiao-Qiu,Shi, Xiao-Hong,Zhao, Fan,Wang, Fei,Yang, Ze,Wang, Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.7
Aims: Genome-wide association studies (GWAS) have identified several risk variants for prostate cancer (pCa) mainly in Europeans, which need to be further verified in other racial groups. We selected six previously identified variants as candidates and to define the association with PCa in Northern Han Chinese. Methods: 749 subjects from Beijing and Tianjin in Northern China were included. Six variants (rs10505474, rs7837328, rs4242384, rs7813, rs486907 and rs1058205) were genotyped by high resolution melting (HRM) assays. The individual and cumulative contribution for of the risk of PCa and clinical covariates were analyzed. Results: Among the six candidate variants, onlyrs10505474, and rs7837328, both locating at 8q24 region, were associated with PCa in our population.rs10505474 (A) was associated with PCa ($OR_{recessive}=1.56$, p=0.006); and rs7837328 (A) was associated with PCa ($OR_{dominant}=1.38$, p=0.042/$OR_{recessive}=1.99$, p=0.003). Moreover, we observed a cumulative effects between them ($p_{trend}=2.58{\times}10^{-5}$). The joint population attributable risk showed the two variants might account for 71.85% of PCa risk. In addition, we found the homozygotes of rs10505474 (A) and rs7837328 (A) were associated with PCa clinical covariants (age at onset, tumor stage, respectively) ($p_{age}=0.046$, $P_{tumorstage}=0.048$). Conclusion: rs10505474 (A) and rs7387328 (A) at 8q24 are associated with PCa and cumulatively confer risk, suggesting the two variations could determine susceptibility to PCa in the Northern Chinese Han population.
The diversity, recombination and horizontal transmission of Wolbachia in spiders in China
Yang Xiao-Hui,Gong Yu-Hui,Xu Xiang,Yin Hai-Qiang,Zhu Dao-Hong 한국응용곤충학회 2021 Journal of Asia-Pacific Entomology Vol.24 No.3
Wolbachia are maternally inherited endosymbiotic bacteria. These intracellular bacteria are common in ar thropods and could manipulate host reproduction in diverse ways, such as feminization, parthenogenesis, male killing and cytoplasmic incompatibility. In spiders, infection by Wolbachia has been found in a total of 99 species belonging to 62 genera and 17 families. Furthermore, recent studies analyzed the phylogeny of Wolbachia in Hylyphantes graminicola, 2 cave spiders and Agelenopsis species using multilocus sequence typing (MLST) approach. However, the diversity of Wolbachia strains determined by MLST in spiders from China is still largely unknown. In this study, we collected 1153 spider individuals from Mangshan in China and screened for Wolbachia in 975 individuals representing 68 spider species belonging to 45 genera of 16 families. We analyzed the phylogenetic relationship between Wolbachia and their host spiders by MLST approach. We found novel infections of Wol bachia in 1 family, 9 genera and 20 species of spiders. We found 13 new Wolbachia strains and suggest that group A is more common than group B in Wolbachia that infect spiders. Our results revealed three recombination events of the concatenated multilocus sequences in Wolbachia that infect spiders. Furthermore, our results demonstrated the phylogenetic incongruence between Wolbachia and spiders, suggesting the horizontal transmission of Wol bachia in spiders. We suggest that recombination and horizontal transmission may play an important role in the diversity and evolution of Wolbachia in spiders.