Abstract: The present invention provides a method for the treatment and/or prevention of bacterial infection caused by klebsiella pneumoniae and other gram-negative bacteria in central nervous system and/or peripheral blood circulation in a mammal by administering effective amount of outer membrane protein A (OmpA) or its derivatives to a mammal. Also provided are a method for vaccinating a mammal to produce an antibody against bacterial infection caused by Enterobacteriaceae family in central nervous system and/or peripheral blood circulation and a method of detecting or diagnosing bacterial infections caused by Enterobacteriaceae family in central nervous system and/or peripheral blood circulation in a mammal.

Abstract: The present invention provides a method for the treatment and/or prevention of bacterial infection in central nervous system and/or peripheral blood circulation in a mammal by administering effective amount of outer membrane protein A (OmpA) or its derivatives to a mammal. Also provided is an antibody binding to OmpA that can assay OmpA levels in a biological sample and detect or diagnose bacterial infection in central nervous system and/or peripheral blood circulation.

Abstract: A communication system includes a microprocessor, a WiFi device, a WiMAX device, common antennas, and switching devices. The common antennas are for receiving a WiFi signal and a WiMAX signal. Each of the switching devices has an input terminal coupled to the corresponding common antenna, a first output terminal coupled to the WiFi device and a second output terminal coupled to the WiMAX device. When the communication system is applied to a WiFi system, the microprocessor controls the switching devices to isolate the WiMAX signal and transmit the WiFi signal via the first output terminals to the WiFi device; when the communication system is applied to a WiMAX system, the microprocessor controls the switching devices to isolate the WiFi signal and transmit the WiMAX signal via the second output terminals to the WiMAX device.

Abstract: The present invention provides a personal gateway comprising a controller, a voice port chip for VOIP (voice over Internet Protocols) application coupled to said controller and a pair of connectors comprising a Foreign exchange Subscriber (or Foreign exchange Station; FXS) and a Foreign exchange Office (FXO). A status detector is coupled between said controller and said FXO and a relay is coupled between said voice port chip and said pair of connectors. The gateway further comprises an antenna and a wireless (RF) module coupled to said antenna to communicate with said controller for wireless LAN function.