Messaging through

A number of very important natural and synthetic biochemicals belong to the phenylethylamine family. Two of these compounds, dopamine and epinephrine (adrenaline), are neurotransmitters, substances that carry chemical messages through the nervous system of humans and other animals. A third phenylethylamine, tyrosine, is an essential amino acid. And a familiar phenylethylamine found in plants is mescaline, whose chemical name is 2-(3,4,5-trimethoxy-phenyl)ethylamine. The primary natural sources of mescaline are four varieties of cactus two peyote species (Lophophora wiUiamsii and Lophophora diffusa), the San Pedro cactus (Trichocereus pacha-noi), and the Peruvian Torch cactus (Trichocereus peruvianus). 

Optical fiber A thin strand of glass through which light passes the light carries a message, much as an electric current carries a message through a telephone wire. 

Parallel computers can be divided into two classes, based on whether the processors in the system have their own private memory or share a common memory. In a distributed memory system, the processors communicate with each other by sending and receiving messages through a communication network connecting all the processors. The problem to be solved must be explicitly partitioned by the programmer onto the various processors in such a way that load balancing is maintained and communication between processors is minimized and well ordered. For some problems it may not be easy or even... 

Doubly ionized calcium (Ca2+) delivers information about the stars, about processes in Earths oceans, and even about how the human brain sends messages through the central nervous system. Because the ions carry excess charge, they move in response to changing voltages. When a neuron fires in the brain, it instantaneously changes the electric poten-... 

Tissues vary in their ability to respond to a message through changes in receptor activity or number. Many receptors contain intracellular phosphorylation sites that alter their ability to transmit signals. Receptor number is also varied through... 

Fragrances that contain vomeropherins — pheromones that simulate or send messages through the human vomeronasal organ ... 

Influences of other messages through same channel... 

Reports are a two-edged sword - they can be used to get a message through to the recipient (manager) or be a means whereby the recipient finds things out about what is going on. 

Distribute your message through different channels and stimulate and encourage feedback as much as possible. 

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