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Yong Feng He,Qiong Ying Tang,Jian Wei Wang,Huan Zhang Liu,De Qing Tan 한국유전학회 2008 Genes & Genomics Vol.30 No.3
Procypris rabaudi (Tchang) is a cyprinid fish endemic to middle and upper reaches of the Yangtze River. Besides in main stream and large tributaries, there exists an early matured, small-sized ecological type in a small tributary, Tang River. In this study, mitochondrial DNA cytochrome b (cyt b) gene sequence analysis and randomly amplified polymorphic DNA (RAPD) analysis were performed to investigate the differentiation of the Tang River population from the Mudong reach population of the Yangtze River, with the purpose of conservation and exploitation of this fish. In the 1140 bps of cyt b gene sequence surveyed, 20 sites were found polymorphic, which defined 23 haplotypes. Among them, four haplotypes accounted for 54.4% of all individuals, while population-specific haplotypes occurred in low frequencies. Analysis of molecular variation on cyt b data revealed no significant partition existing between Tang River population and Mudong reach population. Analyses of 132 RAPD loci suggested that genetic variation between populations was significant, though values of different FST were not very high. The results revealed low genetic diversity and the beginning of population differentiation, suggesting that Tang River population should be designated as a separate Management Unit.
( Yong Feng He ),( Hang Gun Kim ),( Tae Yong Ryu ),( Kwang Youl Lee ),( Won Seok Choi ),( Kyeong Man Kim ),( Mei Zheng ),( Yechan Joh ),( Jae Hyuk Lee ),( Dong Deuk Kwon ),( Qun Lu ),( Kwonseop Kim ) 전남대학교 약품개발연구소 2014 약품개발연구지 Vol.23 No.-
&-catenin was first considered as a brain spedfic protein, strong evidence of&-catenin overexpression in various cancers, including prostate cancer, has been accumulated. Phosphorylation of a-catenin by Akt and GSK313 has been studied in various cell lines. However, tyrosine phosphorylation of &-catenin in prostate cancer cells remains unknown. In the current study, we demonstrated that Src kinase itself phosphorylates &-catenin on its tyrosine residues in prostate cancer cells and further illustrated that Yl073, Yll12 and Yl176 of &-catenin are predominant sites responsible for tyrosine phosphorylation mediated by c-Src. Apart from c-Src, other Src family kinases, including Fgr, Fyn and Lyn, can also phosphorylate a-catenin. We also found that c-Src-mediated Tyr-phosphorylation of &-catenin increases its stability via decreasing its affinity to GSK313 and enhances its ability of indudng nuclear distribution of j3-catenin through interrupting the integrity of the E-cadherin. Taken together, these results indicate that c-Src can enhance the oncogenic function of&-catenin in prostate cancer cells. ⓒ 2013 Elsevier B.V. All rights reserved.
He, Xin-Feng,Xu, Yong-Chun,He, Zhen The Youngnam Mathematical Society Korea 2008 East Asian mathematical journal Vol.24 No.1
The approximate solvability of a generalized system for non-linear variational inequality in Hilbert spaces was studied, based on the convergence of projection methods. But little research was done in Banach space. The primary reason was that projection mapping lacked preferably property in Banach space. In this paper, we introduced the generalized projection methods. By using these methods, the results presented in this paper extended the main results of S. S. Chang [3] from Hilbert spaces to Banach space.
He, Xin-Feng,Xu, Yong-Chun,He, Zhen The Youngnam Mathematical Society 2011 East Asian mathematical journal Vol.27 No.1
In this paper, we consider an iterative scheme for finding a common element of the set of fixed points of a asymptotically quasi nonexpansive mapping and the set of solutions of the variational inequality for an inverse strongly monotone mapping in a Hilbert space. Then we show that the sequence converges strongly to a common element of two sets. Using this result, we consider the problem of finding a common fixed point of a asymptotically quasi-nonexpansive mapping and strictly pseudocontractive mapping and the problem of finding a common element of the set of fixed points of a asymptotically quasi-nonexpansive mapping and the set of zeros of an inverse-strongly monotone mapping.
Xin-feng He,Yong-chun Xu,Zhen He 영남수학회 2011 East Asian mathematical journal Vol.27 No.1
In this paper, we consider an iterative scheme for finding a common element of the set of fixed points of a asymptotically quasi-nonexpansive mapping and the set of solutions of the variational inequality for an inverse strongly monotone mapping in a Hilbert space. Then we show that the sequence converges strongly to a common element of two sets. Using this result, we consider the problem of finding a common fixed point of a asymptotically quasi-nonexpansive mapping and a strictly pseudocontractive mapping and the problem of finding a common element of the set of fixed points of a asymptotically quasi-nonexpansive mapping and the set of zeros of an inverse-strongly monotone mapping.
Xin-Feng He,Yong-Chun Xu,Zhen He 영남수학회 2008 East Asian mathematical journal Vol.24 No.1
The approximate solvability of a generalized system for nonlinear variational inequality in Hilbert spaces was studied, based on the convergence of projection methods. But little research was done in Banach space. The primary reason was that projection mapping lacked preferably property in Banach space. In this paper, we introduced the generalized projection methods. By using these methods, the results presented in this paper extended the main results of S. S. Chang [3] from Hilbert spaces to Banach space.
Multi-owner RFID Tag Ownership Transfer Protocol based on the Chinese Remainder Theorem
Yong Gan,YunQian Xu,Lei He,Feng Xue 보안공학연구지원센터 2016 International Journal of Grid and Distributed Comp Vol.9 No.11
For the security issue of the single tag ownership transfer, this paper proposes a multi-owner RFID Tag ownership transfer protocol based on the Chinese remainder theorem. By using secret sharing scheme, this protocol divides the sharing key into n parts, which then are distributed to n owners. Only when t owners cooperate together, the sharing key will be recovered. Thus, it ensures the tag’s security during the authentication and transformation of the ownership. Under the Linux environment, this protocol was achieved through simulationtest and the experiment data about the calculate time of the tag was got. Then with the number of owners increasing gradually, different results were compared. The result shows that in the protocol, when increasing the owners’ number, the calculate time of tag is in the acceptable range, which is also apply to the low cost tag.
Association of TNF-α-308 and -238 Polymorphisms with Risk of Cervical Cancer: A Meta-analysis
Pan, Feng,Tian, Jing,Ji, Chu-Shu,He, Yi-Fu,Han, Xing-Hua,Wang, Yong,Du, Jian-Ping,Jiang, Feng-Shou,Zhang, Ying,Pan, Yue-Yin,Hu, Bing Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.11
Published data on the associations between tumor necrosis factor-alpha (TNF-${\alpha}$) promoter -308G>A and -238G>A polymorphisms and cervical cancer risk are inconclusive. To derive a more precise estimation of the relationship, a meta-analysis was performed. Data were collected from MEDLINE and PubMed databases. Crude odds ratios (ORs) with 95% confidence intervals (CIs) were calculated in a fixed/random effect model. 13 separate studies including 3294 cases and 3468 controls were involved in the meta-analysis. We found no association between TNF-${\alpha}$-308G>A polymorphism and cervical cancer in overall population. In subgroup analysis, significantly elevated risks were found in Caucasian population (A vs. G: OR = 1.43, 95% CI = 1.00-2.03; AA vs. GG: OR = 2.09, 95% CI = 1.34-3.25; Recessive model: OR = 2.09, 95% CI = 1.35-3.25) and African population (GA vs. GG: OR = 1.53, 95% CI = 1.02-2.30). An association of TNF-${\alpha}$-238G>A polymorphism with cervical cancer was found (A vs. G: OR = 0.61, 95% CI = 0.47-0.78; GA vs. GG: OR = 0.59, 95% CI = 0.45-0.77; Dominant model: OR = 0.59, 95% CI = 0.46-0.77). When stratified by ethnicity, similar association was observed in Caucasian population (A vs. G: OR = 0.62, 95% CI = 0.46-0.84; GA vs. GG: OR = 0.59, 95% CI = 0.43-0.82; Dominant model: OR = 0.60, 95% CI = 0.44-0.83). In summary, this meta-analysis suggests that TNF-${\alpha}$-238A allele significantly decreased the cervical cancer risk, and the TNF-${\alpha}$-308G>A polymorphism is associated with the susceptibility to cervical cancer in Caucasian and African population.
Jiawang Yong,Feng Gao,Nenggen Ding,Yuping He 한국자동차공학회 2017 International journal of automotive technology Vol.18 No.4
This paper presents a novel electric booster (E-booster) that exibits superior performance advantages over traditional vacuum boosters. The proposed E-booster, consisting of an electric motor and a ball screw assembly, is designed for electro-hydraulic brake (EHB) systems to meet relevant requirements for electric vehicles and active safety technologies. A mathematical model for an EHB system is generated to determine the desired values of the parameters for the E-booster prototype using numerical simulation in MATLAB. Simulation results of the EHB system with the virtual E-booster demonstrate the feasibility and effectiveness of the innovative technique. Built upon the results derived from the numerical simualtions, an integrated algorithm based on the Kalman filter and a sliding mode control technique is designed to control the E-booster motor and to implement the brake booster function. A hardware-in-the-loop (HIL) real-time simulation system equipped with the E-booster prototype is developed. HIL real-time simulations are conducted to evaluate the proposed algorithm. The HIL real-time simulation results demonstrate that the proposed algorithm generates booster brake forces fast, and forces the ball nut to track the push rod well to ensure comfortable brake pedal feel.