Word: cellsã
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Sandel first explained that a week-old embryo, or blastocyst, is killed when stem cells??embryonic cells that can be developed into any kind of tissue—are extracted from...
...cause of arthritis is unknown, but the researchers found that mast cells??immune cells traditionally known to trigger allergic inflammation—may release inflammatory chemicals in response to arthritis-associated signals...
...proper decision. The budget for Iraq’s Atomic Energy Commission had increased dramatically from $5 million to $70 million per year in 1976 (a year after the Osirak reactor was purchased). Even more troubling, in 1980 the Italian government had sold Hussein three “hot cells??—nuclear laboratories that are shielded by lead and specifically designed for handling radioactive materials—which, when combined with reprocessing technology, would’ve enabled Iraq to make its own plutonium. That same year, former International Atomic Energy Agency inspector Roger Richter...
...scientists, which include researchers from Harvard and University of Pennsylvania, have identified a form of ribonucleic acid called “short interfering RNA” (siRNA) that inhibits viruses from replicating and entering healthy cells??a finding they said could lead to advances in fighting HIV and possibly other viral infections...
First, Novina said, the nine researchers introduced siRNA into two different kinds of cells??healthy cells...