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University of California, Berkeley scientist Mark Dayel is first author on work that used computer simulation to study actin in eukaryotic cells. To understand how cells move, he and his team created an Accumulative Particle-Spring model that builds on a previous model. "The APS model explains observed transitions between smooth and pulsatile motion as well as subtle variations in network architecture caused by differences in geometry and conditions," says the abstract.

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NPR reports that researchers have developed chimeric embryos as part of work toward growing human organs in animals for organ transplants.

According to the Washington Post, the Biden Administration is set to make changes to federal restrictions on fetal tissue research.

In Science this week: approach to isolated trace DNA from archaic humans from sediments, and more.

Texas Monthly looks into the DNA Zoo being collected by Baylor College of Medicine researchers.