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Potential of Umbilical Cord Blood Stem Cells in Regenerative Medicine27 Jun, 2007 06:08 pm Stem cells have the potential to become all the cells and tissues in the human body. These cells have been described as embryonic stem cells (ESCs) and...The nature of dark energy: the big challenge in the physics new era30 Mar, 2006 03:36 pm The universe is dominated by a mysterious dark energy acting as a repulsive force on the universe scale, causing its cosmic acceleration... |