1 Center for Advanced Molecular Imaging and Translation, Chang Gung Memorial Hospital, Linkou 333, Taiwan 2Department of Nuclear Medicine, Chang Gung Memorial Hospital, No. 5, Fu-Hsin Street, Kweishan, Linkou, Taoyuan 333, Taiwan 3 INSERM, UMR1101 LaTIM, CHRU Brest, 29609 Brest, France 4Division of Diagnostic Imaging, Department of Imaging Physics, The University of Texas MD Anderson Cancer Cen...

W.-B. Lee and C.-C. Chang (1998) proposed a very efficient group signature scheme based on the discrete logarithm problem. This scheme was subsequently improved by Y.-M. Tseng and J.-K. Jan (1999) so that the resulting group signatures are unlinkable. In this paper, we show that any obvious attempt to make unlinkable the Lee-Chang signatures would likely fail. More importantly, we show that bot...

The planthopper genus Neohemisphaerius Chen, Zhang & Chang, 2014 (Hemiptera: Fulgoroidea: Issidae) is reviewed to include 3 species: Neohemisphaerius wugangensis Chen, Zhang & Chang, 2014 (China: Hunan), Neohemisphaerius yangi Chen, Zhang & Chang, 2014 (China: Guangdong) and Neohemisphaerius guangxiensis sp. n. (China: Guangxi). A revised generic diagnosis is given. The new species is described...

Pen-Hsiu Chang , N.C. Chen, Chin-An Chang1, Hsian-Chu Peng, Chuang-Feng Shih, KuoShung Liu, Shih-Kai Lin, Kun-Ta Wu, Shang-Chia Chen, Chao-Ping Huang, Hong-Syuan Wang, Pu-Tai Yang, C.-T. Liang, Y.H. Chang and Y.F. Chen Institute of Electro-Optical Engineering, Chang Gung University, Kwei-Shan, Tao-Yuan 333, Taiwan Department of Materials Science and Engineering, National Tsing Hua University, H...

Colonic mucosal lymphoid cells, selectively enriched for intraepithelial (IEL) or lamina proprial lymphocytes (LPL), were isolated by sequential EDTA-collagenase treatment of resected human colons. Cytotoxic activities of colonic and peripheral blood lymphoid cells (PBL) were tested in three different assays, using chicken erythrocytes (CRBC) and Chang cells as targets. Antibody-dependent cell-...

In 2000, Lee and Chang proposed a user identification scheme with key distribution preserving anonymity for distributed computer networks. Recently, Wu and Hsu pointed out that there are two weaknesses in the LeeChang scheme. They further not only proposed a new scheme to remedy the security leaks of the Lee-Chang scheme, but also reduced computation complexities and communication cost as compa...

The hepatitis B virus X (HBX) protein, a regulatory protein of the hepatitis B virus (HBV), has been shown to generate reactive oxygen species (ROS) in human liver cell lines; however, the mechanism by which cells protect themselves under this oxidative stress is poorly understood. Here, we show that HBX induces the up-regulation of Forkhead box class O 4 (Foxo4) not only in Chang cells stably ...

lots of papers has been written about iran’s military strategy explain military strategy of iran is deterrence, but there is a little paper that explain why iran chose this strategy? the paper tries to answer this question. two hypotheses are presented as probable answers to the question: 1-chang of balance power in the middle east 2- intensification of u.s pressure on iran for regime change.lo...

In this paper, we discuss a paper of Chang and Teng [C.T. Chang, J.T. Teng, Retailer’s optimal ordering policy under supplier 4 credits, Mathematical Methods of Operations Research 60 (2004) 471–483], they established an inventory model for deteriorating 5 items when the supplier permits not only a cash discount but also a permissible delay. They also proved a closed-form solution 6 of the inve...

Using data from a randomized controlled trial involving door-to-door HIV education, homebased voluntary HIV counseling and testing (VCT), and facility-based VCT, the latter of which relies on conditional cash transfers, we find that both home-based VCT and facility-based VCT significantly increase HIV testing take-up, with the former being more effective in detecting HIV-positive cases. We also...