Strabismus, also known as crossed eyes, is a condition in which the eyes don't look towards an object together. One of the eyes may look in or out, or turn up or down. The eye turning can occur all of the time or only sometimes, such as during stressful situations or illness. Readers Comments 1.
Transition economies. A transition economy is one that is changing from central planning to free markets. Since the collapse of communism in the late 1980s, countries of the former Soviet Union, and its satellite states, including Poland, Hungary, and Bulgaria, sought to embrace market capitalism and abandon central planning.
A token economy is based on the principles of operant conditioning and can be situated within applied behavior analysis (behaviorism). In applied settings token economies are used with children and adults; however, they have been successfully modeled with pigeons in lab settings. token economy is a system of behavior modification based on the systematic reinforcement of target behavior.