Theoretically, in vitro fertilisation could be performed by collecting the contents from a woman's fallopian tubes or uterus after natural ovulation, mixing it with sperm, and reinserting the fertilised ova into the uterus.
Upstream operations deal primarily with the exploration stages of the oil and gas industry, with upstream firms taking the first steps to first locate, test and drill for oil and gas. Later, once reserves are proven, upstream firms will extract any oil and gas from the reserve.
Upstream Downstream Definition. Upstream direction is the end of the waterway from where the flow of water originates. Where the flow ends, at the opposite end of the waterway, is downstream.For exemple, from Kingston to Toronto you are heading upstream, the water emptying from a river back into the ocean.Kingston to Cornwall is âdownstreamâ. When going in the upstream direction, you keep all the red buoys on the starboard side and the green buoys on port side.or exemple, from Kingston to Toronto you are heading upstream, the water emptying from a river back into the ocean. Kingston to Cornwall is âdownstreamâ. When going in the upstream direction, you keep all the red buoys on the starboard side and the green buoys on port side.