Uses of chemicals in a research, industrial, or household setting. This does not include PHARMACOLOGIC ACTIONS.

The aggregate enterprise of manufacturing and technically producing chemicals. (From Random House Unabridged Dictionary, 2d ed)

The protection, preservation, restoration, and rational use of all resources in the total environment.

Materials or phenomena which can provide energy directly or via conversion.

Planned management, use, and preservation of energy resources.

Techniques using energy such as radio frequency, infrared light, laser light, visible light, or acoustic energy to transfer information without the use of wires, over both short and long distances.

The chemical reactions involved in the production and utilization of various forms of energy in cells.

Polymeric materials (usually organic) of large molecular weight which can be shaped by flow. Plastic usually refers to the final product with fillers, plasticizers, pigments, and stabilizers included (versus the resin, the homogeneous polymeric starting material). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)