Forms of energy that are constantly and rapidly renewed by natural processes such as solar, ocean wave, and wind energy. (from McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Energy transmitted from the sun in the form of electromagnetic radiation.
Planned management, use, and preservation of energy resources.
Materials or phenomena which can provide energy directly or via conversion.
The motion of air relative to the earth's surface.
Hydrocarbon-rich byproducts from the non-fossilized BIOMASS that are combusted to generate energy as opposed to fossilized hydrocarbon deposits (FOSSIL FUELS).
Any combustible hydrocarbon deposit formed from the remains of prehistoric organisms. Examples are petroleum, coal, and natural gas.
Devices that control the supply of electric current for running electrical equipment.
Total mass of all the organisms of a given type and/or in a given area. (From Concise Dictionary of Biology, 1990) It includes the yield of vegetative mass produced from any given crop.
The protection, preservation, restoration, and rational use of all resources in the total environment.
The chemical reactions involved in the production and utilization of various forms of energy in cells.
Total number of calories taken in daily whether ingested or by parenteral routes.
A quantitative measure of the frequency on average with which articles in a journal have been cited in a given period of time.
Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)
A publication issued at stated, more or less regular, intervals.
The use of statistical methods in the analysis of a body of literature to reveal the historical development of subject fields and patterns of authorship, publication, and use. Formerly called statistical bibliography. (from The ALA Glossary of Library and Information Science, 1983)
"The business or profession of the commercial production and issuance of literature" (Webster's 3d). It includes the publisher, publication processes, editing and editors. Production may be by conventional printing methods or by electronic publishing.
Remains, impressions, or traces of animals or plants of past geological times which have been preserved in the earth's crust.
The natural satellite of the planet Earth. It includes the lunar cycles or phases, the lunar month, lunar landscapes, geography, and soil.
The smallest continent and an independent country, comprising six states and two territories. Its capital is Canberra.