Synaptic Transmission. In a chemical synapse, the pre and post synaptic membranes are separated by a synaptic cleft, a fluid filled space. The chemical event is involved in the transmission of the impulse via release, diffusion, receptor binding of neurotransmitter molecules and unidirectional communication between neurons. The neurotransmitter termination can occur in three ways - reuptake, enzymatic degradation in the cleft and diffusion.
Pride in Accomplishment: The Interstate H-3 Project. Hawaii, America's 50th state, is known around the world for gentle trade winds and tropical beauty. While Hawaii takes pride in these natural wonders, we are also proud of our human achievements. One truly spectacular accomplishment is the completion of the Interstate H-3 freeway on the island of Oahu. H-3, 37 years in the making, was officially opened on Dec.12, 1997.
The American Tunnel was constructed from 1959-61, extending beyond the Gold King property to the Sunnyside Mine workings. The disastrous Lake Emma flood in 1978 forced the closure of the mine. A treatment plant was commissioned for water discharges from the tunnel in the fall of 1978 and that plant was redesigned and upgraded in the late 1980s. In 1996 a bulkhead was installed at the American Tunnel portal.