A cochlear implant consists of several components. All cochlear implants have microphones, external speech processors, signal-transfer hardware, transmitters, receivers, and electrodes. Each plays an important part in converting sound to an electrical stimulus. The microphone simply receives and transduces sound into an electrical representation. This is done in an analog (continuous) fashion. The external speech [...]
Every pregnant woman should be tested for HIV to have a better chance of preventing transmission to her unborn child.
If a woman knows she is HIV-infected and already has children, it is recommended that all of her children be tested for HIV. Even if she has older children and they seem healthy, they could still [...]
Description of The Immune System
It is the business of the immune systemto recognize “self” (the body’s own cells) and “non-self” (an antigen – a virus, fungus, bacterium, or any other cell or piece of foreign tissue). To deal with antigens, the system manufactures specialized cells to recognize infiltrators and eliminate them.
Among the primary components of [...]