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Comment Re:So what happens (Score 1) 388

by Fraggy_the_undead (#28784087) Attached to: Laser Ignition May Replace the Spark Plug

Even a very efficient gas burning engine pumps fuel out the tail pipe, which is the reason catalytic converters are required on vehicles in the US.

No, catalytic converters mainly reduce Carbon Monoxide and NOx emissions. It is true, that they also reduce the emission of unburnt hydrocarbons, but to a much lesser extend. In fact, if too much unburnt fuel gets to the catalytic converter, it will break very quickly.
Biotech

Doctors Will Test Gene Editing On HIV Patients 263

Posted by kdawson from the importing-mercenaries dept.
Soychemist writes "Some people have a mutation that makes them highly resistant to HIV, and scientists think that they can give that immunity to anyone with a new type of gene therapy. The first human trials will start at the University of Pennsylvania this week. Researchers will draw blood from people with drug-resistant HIV, clip the CCR5 gene out of their T-cells with a nuclease enzyme, grow the modified cells in a dish, and then return 10 billion of them to the patient's bloodstream. Those cells will be immune to the virus, and they will keep the patient's T-cell count up even if the rest are destroyed. 'We will see if it is safe and if those cells inhibit HIV replication in vivo,' said the lead researcher. 'We know they do in the test tube.'"

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