In the operant conditioning paradigm, extinction refers to the process of no longer providing the reinforcement that has been maintaining a behavior. Operant extinction differs from forgetting in that the latter refers to a decrease in the strength of a behavior over time when it has not been emitted.
Gel medium is an acrylic product. It comes in Heavy, Soft, and Regular and has a variety of finishes, Matte, Gloss and Semi-gloss. The basic use for these is to build texture in paintings by mixing them with acrylic paint. If you add a small bit of it to your paint it will also extend the drying time. The Soft gel is the medium that is most often used by paper artists. It can be used as a glue for collage and it is also used to make photocopy transfers.
Gelato (Italian pronunciation: [dÊeËlaËto]; plural: gelati [dÊeËlaËti]) is the Italian word for ice cream, commonly used in English for ice cream made in an Italian style. Gelato is made with a base of milk, cream, and sugar, and flavored with fruit and nut purees and other flavorings. It is generally lower in fat, but higher in sugar, than other styles of ice cream. Gelato typically contains less air and more flavoring than other kinds of frozen desserts, giving it a density and richness that distinguishes it from other ice creams.