Barrett's esophagus refers to an abnormal change in the cells of the lower portion of the esophagus. It is characterized by the replacement of the normal stratified squamous epithelium lining of the esophagus by simple columnar epithelium with goblet cells (which are usually found lower in the gastrointestinal tract).
U.S. Space Camp is a camp and related programs owned and operated by the Alabama Space Science Exhibit Commission's U.S. Space & Rocket Center in Huntsville, Alabama.
Camp Casey is a U.S. military base in Dongducheon, South Korea. Camp Casey is one of several U.S. Army bases in South Korea near the Korean Demilitarized Zone (DMZ) approximately 40 miles north of Seoul, South Korea. Camp Casey, Camp Red Cloud, Camp Hovey, Camp Stanley, and Camp Bonifas are the bases closest to the DMZ. Camp Casey is located within a valley, 11 miles (20 km) south of the Demilitarized Zone in the village of Tongduchon. The Kwangju Mountain Range, an offshoot of the Taebaek Mountains, extends southwest to include the mountains around Seoul.