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.
Originating with the Deepwater Horizon oil rig explosion, the Deepwater Horizon Oil Spill Disaster began. April 20, 2010 and released approximately 4.9. million barrels as it ran until June 13, 2010. The. effects of these events will be felt for years to. come.