Gram staining. Gram staining or Gram stain, also called Gram's method, is a method of staining used to differentiate bacterial species into two large groups (gram-positive and gram-negative). The name comes from the Danish bacteriologist Hans Christian Gram, who developed the technique.
Horizon Oil Sands. Horizon Oil Sands The Horizon Oil Sands project (or Horizon) is an oil sands mining and upgrading project. Horizon is 100% owned and operated by Canadian Natural Resources Limited.
Over 125 million gallons of oil spewed into the Gulf after an explosion at the Deepwater Horizon oil rig in 2010. The settlement is the largest paid by a single company in US history . The Deepwater Horizon oil spill was one of the worst environmental disasters in US history and claimed the lives of 11 people. In December the US Supreme Court rejected the oil giant's legal challenge over an original compensation deal agreed in 2012.