Packet loss in mobile IPv6 is a huge problem during mobile node handover, especially for real-time packets. When the mobile node moves from one subnet to another, it cannot receive packets that the correspondent node sent to it. This unreachable problem remains until the mobile node gets new address and sends its binding updates to inform the correspondent node about its new address. In real-ti...

The world of human immunodeficiency virus (HIV) vaccines has suffered a baffling setback. The first trial of a vaccine designed to elicit strong cellular immunity has shown no protection against infection. More alarmingly, the vaccine appeared to increase the rate of HIV infection in individuals with prior immunity against the adenovirus vector used in the vaccine. A new study in this issue sug...