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.
A semester system breaks an academic year into two terms of about 14 to 20 weeks each. Semester length varies from school to school within a range of one to three weeks. Some community colleges still use the K-12 schedule, which consist of two 18-week semesters. U.S. universities have two intakes during the fall and spring semesters.