Bei Pei

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TRF1 and TRF2 are key proteins in human telomeres, which, despite their similarities, have different behaviors upon DNA binding. Previous work has shown that unlike TRF1, TRF2 condenses telomeric, thus creating consequential negative torsion on the adjacent DNA, a property that is thought to lead to the stimulation of single-strand invasion and was proposed(More)
BACKGROUND To determine potential social, psychological, and environmental-structural factors that may result in motivating female sex workers (FSWs), who are rural-to-urban migrants, and their paying partners in Shanghai, China to promote consistent condom use (CCU). METHODS A cross-sectional study was conducted in five districts of Shanghai, including(More)
BACKGROUND China is currently facing a rapid and widespread increase in human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS). The activities of female sex workers (FSWs) have contributed to the mounting epidemic of HIV/AIDS and other sexually transmitted diseases (STDs). Therefore, this study aimed to assess the HIV/AIDS-related(More)
A major issue in telomere research is to understand how the integrity of chromosome ends is controlled. The fact that different types of nucleoprotein complexes have been described at the telomeres of different organisms raises the question of whether they have in common a structural identity that explains their role in chromosome protection. We will review(More)
Software-Defined Networking (SDN) and Network Function Virtualization (NFV) are emerging as promising innovations for future network, which make Virtual Network Service (VNS) possible to be implemented broadly. It is the common truth that VNS is realized by the collaborations of multi-providers in practical scenario, where potential risks are lying in the(More)
Distributed Denial of Service (DDoS) attack is a major threat to Internet based killer applications, such as independent news web sites, e-business and online games. Detecting and blocking such clever attacks has become difficult. Software-Defined Networks (SDN) has emerged as a future communication network architecture which decouples network control and(More)
Domain Name System (DNS) is one of the most crucial components of the Internet. However, due to the vulnerability of DNS, its security has been continuously challenged in recent years. In order to thoroughly understand the root cause of the security risks in the DNS, researches in DNS security are surveyed, and vulnerabilities in DNS and corresponding(More)
The rapid development of Internet attack has posed severe threats to information security. Therefore, it's of great interest to both the Internet security companies and researchers to develop novel methods which are capable of protecting users against new threats. However, the sources of these network attack varies. Existing malware detectors and intrusion(More)