Word: oxygenate
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...good cholesterol" you hope will turn up in your blood test has that name for a reason. More properly known as high-density lipoprotein (HDL), it can prevent the damage done by its evil twin, low-density lipoprotein (LDL). The latter clogs blood vessels by combining with oxygen to form a substance that sets off alarms in the immune system. White blood cells rush to attack it, and the whole mess forms into sticky globs called plaques that cling to vessel walls like mineral deposits in a water pipe. When these deposits break off and blood clots around them...
...good because it keeps LDL from combining with oxygen in the first place. But doctors at UCLA studying HDL in mice have found that when the immune system is under stress--after surgery, for example, or during a major infection--HDL stops producing an enzyme called paraoxynase and thus loses its antioxidant properties. When good cholesterol goes bad, moreover, it goes really bad. Not only does it stop protecting the body against LDL, but it also seems to goad the immune system into forming plaques even more quickly...
...program of tax credits for companies that invest in energy-saving technology, and government spending on energy research. He pointed out that many fuel-saving technologies, such as compact fluorescent light bulbs, already exist, and other breakthroughs, like practical fuel cells that generate clean energy by combining hydrogen and oxygen, are being put to greater use all the time. The government has already begun to jump start the alternative-energy industry by purchasing products like solar cells in bulk...
...mishap last summer was the most troubling incident in a troubling year for the geriatric Mir. Already the 11-year-old ship had experienced a breakdown in its oxygen system, a series of leaks in its cooling system and an onboard fire. In the months following the collision, there were power blackouts, repeated failures in the ship's flickering computer and even an alarming irregularity in Tsibliyev's heartbeat...
...crew had to find a way to replace the air that had been lost. While Foale remained behind in the transfer node to make sure the bolts holding the sphere together hadn't been damaged by the collision, Lazutkin unstowed a large tank of pure oxygen, wrestled it into the main module and, with Tsibliyev's help, opened its nozzle. Instantly, a loud, sibilant hiss echoed through the ship. Off in the node, Foale heard the noise and, knowing the difference between the sound of air entering a spacecraft and the sound of air leaving it, heaved a relieved sigh...