Leticia Alves Prudente

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Electric Stimulation To Spine Gets Paralyzed Patients Moving Again

Four men who had been paralyzed for two years or more were able to move their legs, knees, ankles and toes.<p>After you've injured your spinal cord, getting a "motor complete" diagnosis means you're unable to move your legs—or anything on your body, below the injury—under your own volition. Stay …

Ancient Virus DNA Gives Stem Cells the Power to Transform

Embryonic stem cells can become any type of cell, thanks to an ancient virus, scientists say.<p>A virus that invaded the genomes of humanity's ancestors millions of years ago now plays a critical role in the embryonic stem cells from which all cells in the human body derive, new research shows.<p>The …

Simple Invention For Sealing Gunshot Wounds Gets FDA Approval

The XStat syringe stops bleeding in 15 seconds using tiny sponges.<p>The pocket-sized XStat, a hemorrhage-stopping invention we wrote about in February, yesterday received approval from the U.S. Food and Drug Administration as a first-of-its-kind medical dressing. This means that the U.S. Army, which …

E=mc2: Einstein's equation that gave birth to the atom bomb

Albert Einstein's famous equation E=mc2 for the first time connected the mass of an object with its energy and heralded a new world of physics<p>This is the most famous equation in the history of equations. It has been printed on countless T-shirts and posters, starred in films and, even if you've …