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Friday, October 18, 2019

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For millions of Americans with heart disease and failure, a breakthrough development could save their lives. More than half a million people die in the United States from heart failure each year, thousands of them while awaiting a transplant. But with the release of a new scientific paper comes a potential solution to the deficiency: growing new ones.

Growing_a_New_Heart

That's exactly what a team of researchers at Massachusetts General Hospital's Center for Regenerative Medicine (CRM) set out to do. Their work, published this week in the journal Circulation Research, proves the idea has the potential to be a game changer. Using skin cells reprogrammed into stem cells, the researchers were able to generate functional heart tissue.

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Newly discovered letters once again reveal that Darwin was a passionate and loving family man. Even so, every aspect of his personal life was devoted to his understanding of the natural world.

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Charles and William Darwin, 1842

When William Erasmus Darwin was born in December 1839, his father Charles began to meticulously record observations of his firstborn in a notebook. Now housed at Cambridge University Library, it reads more like a research document than like that of a new parent blissfully observing his son's behaviour, as the opening comments reveal: "During first week, yawned, streatched [sic] himself just like old person – chiefly upper extremities – hiccupped – sneezes sucked...."

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sandstormlightning410

Sandstorms Lightning Displays

By unlocking the secrets of how sparks come to fly in these storms as researchers are now doing, scientists could help grapple with all kinds of problems, from charged particle clouds that can cause devastating explosions in the food, drug and coal industries to charged dust that could obscure vital solar panels on missions to the moon or Mars. Sand is an insulator, so seeing sandstorms generate lightning would be somewhat like watching electricity emerge from a storm full of rubber balls. It has been an enigma for more than 150 years as to how sand grains can transfer the huge amounts of electrical charge needed for lightning to happen.

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This blood sucker might not be your best friend, but it loves you.

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The mosquito, Aedes aegypti, is causing widespread fear in Brazil where it is spreading the Zika virus that has been linked to thousands of babies being born with birth defects. The Zika Virus has already being identified in 30 US States and/or Territories. The recent Zika Surge in Wynwood, a Miami trendy neighborhood prompts travel warning from Federal Health Officials, especially for pregnant woman.

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Have you ever had a "gut-wrenching" experience? Do certain situations make you "feel nauseous"? Have you ever felt "butterflies" in your stomach? We use these expressions for a reason. The gastrointestinal tract is sensitive to emotion. Anger, anxiety, sadness, elation — all of these feelings can trigger symptoms in the gut.

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Technically known as the enteric nervous system, the second brain consists of sheaths of neurons embedded in the walls of the long tube of our gut, or alimentary canal, which measures about nine meters end to end from the esophagus to the anus. The second brain contains some 100 million neurons, more than in either the spinal cord or the peripheral nervous system.