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.
Gelatin is a protein food additive obtained by hydrolysis of collagen, the most common animal protein. Hydrolysis refers to any process using chemical denaturing through the use of water. The gelatin is traditionally used in dishes such as the French pot-au-feu, or the Portuguese cozido.To produce gelatin industrially, bones and skin from pork or beef are mainly used although there is also fish gelatin.elatin is also a thickening and a foaming agent. It allows the retention of water, stabilizes emulsions, or can form protective films. The main property of gelatin is to form a thermo-reversible gel.