For this, a time-resolved study was performed in the transient state created by suddenly removing oxygen during the combustion of char.
These results indicate that cancer cells may switch into a more stem-like status when meeting with hypoxic stress, and develop more aggressive phenotype in a manner of selection in a suddenly higher oxygen environment, such as when tumor cells penetrate into blood stream or when the "dormant" metastatic solid tumor cells are mobilized out of bone marrow by till now un-clarified mechanisms.
As I just typed the three w's followed by the instruction to the copy editor "unitalics," the letters turned blue, as if suddenly deprived of oxygen.
Even if respiration were suddenly to cease, oxygen produced by photosynthesis, or any oxidant in the atmosphere, would be consumed if oxidizable materials were present.
Suddenly, we had oxygen in our lungs again -- and it was actually reaching our brains!
Then, suddenly, there is different oxygen.
A while back, I talked to a prominent physicist who carefully explained that although the odds against all the oxygen molecules suddenly racing over to clump on one side of the room were really, really, really high, it could happen.
A study published in 1968 in The Journal of Applied Physiology found that if primates breathing pure oxygen were suddenly exposed to a near vacuum for up to 210 seconds but then given oxygen at a fairly high pressure for 4 to 24 hours, they could recover and survive for years.
It's more like seeking oxygen because suddenly your air supply has been taken away.
More than 50 stingrays in a popular exhibit at a Chicago zoo died on Friday after oxygen levels suddenly dropped in the tank where the animals lived.
