Also called carotid artery disease, carotid stenosis is caused by a buildup of plaque inside the artery wall that reduces blood flow to the brain. The process of plaque buildup is called atherosclerosis. Carotid stenosis is a major risk factor for stroke and can lead to brain damage.
Most shipbuilders in the United States are privately owned, the largest being Huntington Ingalls Industries, a multibillion-dollar defense contractor, and the oldest family owned shipyard being Colonna's Shipyard in Norfolk, VA.
Now, the world's largest 'floating facility', which is longer than the height of the Empire State Building, has taken to the water for the first time. South Korean shipbuilder Samsung Heavy Industries floated the partially built tanker-shaped vessel - named Prelude - at its southern shipyard in Geoje on November 30.