High speed and low power consumption are vital in ICs for high-speed optical communications systems. Some of the competing IC elements in this field include: Si-BJT (Silicon Bipolar Transistor), Si-CMOS (Silicon Field Effect Transistor), SiGe-BJT (Silicon Germanium Bipolar Transistor), GaAs-HBT (Gallium Arsenide Heterobipolar Transistor), GaAs-FET (Gallium Arsenide Field Effect Transistor), and...

The in vivo role of endogenous interleukin-18 (IL-18) in modulating gamma interferon (IFN-gamma)-mediated resolution of replicative Legionella pneumophila lung infection was assessed using a murine model of Legionnaires' disease. Intratracheal inoculation of A/J mice with virulent bacteria (10(6) L. pneumophila organisms per mouse) resulted in induction of IL-18 protein in bronchoalveolar lavag...

Interleukin-18 (IL-18), a recently described member of the IL-1 cytokine superfamily, is now recognized as an important regulator of innate and acquired immune responses. IL-18 is expressed at sites of chronic inflammation, in autoimmune diseases, in a variety of cancers, and in the context of numerous infectious diseases. This short review will describe the basic biology of IL-18 and thereafte...

In previous chapters we have set down, with some discrimination, the contributions to the record of structural aspects of morphogenesis in the watermolds. Only in passing have we touched upon the factors that trigger or modify the genetically dictated form these fungi may take. This and the following three chapters review the literature dealing with external and internal factors that influence ...

What are community networks? I am writing as a librarian and network user who has been involved in using telecommunications to communicate with other people and to provide information on a wide range of subjects. I have encouraged people in various towns and counties to use this technology to start and use networks that can strengthen the community. Many individuals, organizations, and institut...