General science

General science

A variety of science subjects concerning the fundamental knowledge about different aspects of our world and their underlying principles.

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General science

flexible manufacturing system

Science; General science

A factory or part of a factory made up of programmable machines and devices that can communicate with one another. Materials such as parts, pallets, and tools are transported automatically within ...

abc lipid transporters

Science; General science

A family of adenosine triphosphate–binding cassette (ABC) transmembrane proteins that use energy to transport various molecules across extracellular and intracellular membranes (cytoplasmic ...

A family of elementary particles whose first three members were discovered in 1977. The upsilon mesons, Υ, are the heaviest known vector mesons, with masses greater than 10 times that of the proton. ...

endorphins

Science; General science

A family of endogenous, morphinelike peptides present within the central nervous system. The enkephalins, the first members of the endorphin family, were discovered by John Hughes and Hans Kosterlitz ...

cancrinite

Science; General science

A family of minerals, related to the scapolite family, characteristically occurring in basic rocks such as nepheline syenites and sodalite syenites. A typical specimen is shown in the illustration ...

eicosanoids

Science; General science

A family of naturally occurring, biologically active substances derived from 20 carbon polyunsaturated fatty acids such as arachidonic acid. Members of the family include prostaglandins, ...

xenacanthidae

Science; General science

A family of Paleozoic elasmobranch sharks that are characterized by teeth with large divergent lateral cusps (diplodont crowns), an elongate dorsal fin preceded by a distinctive spine, and paired ...