A new mathematical model of cellular movement

A mathematical model that describes how cells change their shape during movement suggests that the movement is mainly driven by the contraction of the skeletal proteins, called "myosin." The new model developed at Penn State ...

Where were Herod the Great's royal alabaster bathtubs quarried?

From the Middle Bronze Age, Egypt played a crucial role in the appearance of calcite-alabaster artifacts in Israel, and the development of the local gypsum-alabaster industry. The absence of ancient calcite-alabaster quarries ...

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