The Red Sea is a deep semi-enclosed and narrow basin connected to the Indian Ocean by a narrow sill in the south and to the Suez Canal in the north. Oil industries in the Gulf of Suez, phosphate ore mining activities in Safaga-Quseir region and intensified navigation activities are non-nuclear pollution sources that could have serious radiological impacts on the marine environment and the coast...

We discuss the types of functional knowledge about an environment an agent can use in order to act effectively. We demonstrate (1) the use of structural regularities for acting efficiently, and (2) the use of physical regularities for designing effective sensors. These ideas are described in the context of an everyday task: grocery store shopping. We discuss how SHOPPER, a program, uses regular...

Widespread use of asbestos over the last century has left a terrible legacy of lung disease. Doctors knew of the health risks long ago, but almost nothing was done to protect workers and the public. Some aspects of nanotechnology may have risks similar to asbestos. Keywords—Asbestos, causation, nanotechnology.