A number of theories have been proposed to explain the development of hepatic encephalopathy in patients with cirrhosis. Some investigators contend that hepatic encephalopathy is a disorder of astrocyte function. Astrocytes account for about one third of the cortical volume.
Mar 10, 2015. College semesters are about 15 weeks long. Most fall semesters begin in September and end in December. Spring semester begins in January and ends in April. This means that in the ânormalâ academic year, students are in classes for approximately six months.
The summer semester, which is usually six or seven weeks term usually offers a reduced range of classes to choose from. UMass Bostonâs summer sessions are summer semesters. With the trimester system, the academic school year is broken into three terms, each about twelve or thirteen weeks long. Proponents of the trimester system usually offer terms during the fall, winter and spring.