According to Dr. Roman-Lantzy, Cortical Visual Impairment (CVI) âis the leading cause of visual impairment in children today.â CVI differs from other types of visual impairment which are due to physical problems with the eyes. CVI is a neurological disorder caused by damage to the visual centers of the brain, which interferes with communication between the brain and the eyes. The eyes are able to see, but the brain is not interpreting what is being seen.
The bulk of the privately-owned cars were the property of the âbig threeâ leasing companies, General American (GATX), Union Tank (UTLX), and Shippers Car Line (SHPX), with other lessors such as North American (NATX) far down the list.
The Duramax is a General Motors diesel engine family for light to medium duty trucks, designed by GM and Isuzu. The 6.6-liter Duramax is produced by DMAX, a joint venture between GM and Isuzu in Moraine, Ohio.The Duramax block and heads are poured at The Defiance GM Powertrain foundry in Defiance, Ohio.This engine was initially installed in 2001 model year Chevy and GMC trucks and has been an option since then in pickups, vans, and medium-duty trucks.nlike previous Duramax engines, the 4.5-liter is planned to be designed and built entirely by GM, without assistance from Isuzu. As of March 2009, a GM spokesperson stated the engine project has been put on an indefinite hold due to current economic conditions.