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.
Figure 2: NOAA trajectory map for surface oil resulting from the Deepwater Horizon Oil Spill. The reduction in the amount of visible surface oil. can be attributed to natural and anthropogenic clean-up efforts as well as increasing amounts of oil settling below the surface.