ScienceDaily: Most Popular News

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• Potassium-rich foods cut stroke, death risks among older women
• Artificial cells take their first steps: Movable cytoskeleton membrane fabricated for first time
• Discrepancy in Greenland temperatures during end of last ice age resolved
• Coffee genome sheds light on the evolution of caffeine
• Life forms appeared at least 60 million years earlier than previously thought
• A new model for a cosmological enigma -- dark matter: Solving long-standing and troublesome puzzles
• How good is the fossil record? New study casts doubt on their usefulness
• Keeping upright: How much gravity is enough?
• New deep sea mushroom-shaped organisms discovered
• Maternal singing during skin-to-skin contact benefits both preterm infants, mothers

Potassium-rich foods cut stroke, death risks among older women Posted: 04 Sep 2014 03:37 PM PDT Older women who eat foods with higher amounts of potassium may be at lower risk of stroke and death than women who consume less potassium-rich foods. The health benefits from potassium-rich foods are greater among older women who do not have high blood pressure. Most older American women do not eat the recommended amounts of potassium from foods.

Artificial cells take their first steps: Movable cytoskeleton membrane fabricated for first time Posted: 04 Sep 2014 11:19 AM PDT Using only a few ingredients, a biophysicist and his team have successfully implemented a minimalistic model of the cell that can change its shape and move on its own. They describe how they turned this goal into reality in a new article.

Discrepancy in Greenland temperatures during end of last ice age resolved Posted: 04 Sep 2014 11:19 AM PDT A new study of three ice cores from Greenland documents the warming of the large ice sheet at the end of the last ice age -- resolving a long-standing paradox over when that warming occurred.

Coffee genome sheds light on the evolution of caffeine Posted: 04 Sep 2014 11:19 AM PDT An international research team has sequenced the genome of the coffee plant Coffea canephora. By comparing genes in the coffee, tea and chocolate plants, the scientists show that enzymes involved in making caffeine likely evolved independently in these three organisms. More than 8.7 million tons of coffee was produced in 2013; it is the principal agricultural product of many tropical nations.

Life forms appeared at least 60 million years earlier than previously thought Posted: 04 Sep 2014 09:12 AM PDT Geologists in Ireland have rewritten the evolutionary history books by finding that oxygen-producing life forms were present on Earth some 3 billion years ago -- a full 60 million years earlier than previously thought. These life forms were responsible for adding oxygen to our atmosphere, which laid the foundations for more complex life to evolve and proliferate.

A new model for a cosmological enigma -- dark matter: Solving long-standing and troublesome puzzles Posted: 04 Sep 2014 09:12 AM PDT Astrophysicists believe that about 80 percent of the substance of our universe is made up of mysterious "dark matter" that can't be perceived by human senses or scientific instruments.

How good is the fossil record? New study casts doubt on their usefulness Posted: 04 Sep 2014 05:46 AM PDT Do all the millions of fossils in museums around the world give a balanced view of the history of life, or is the record too incomplete to be sure? This question was first recognized by Charles Darwin and has worried scientists ever since.

Keeping upright: How much gravity is enough? Posted: 03 Sep 2014 01:35 PM PDT Keeping upright in a low-gravity environment is not easy, and NASA documents abound with examples of astronauts falling on the lunar surface. Now, a new study suggests that the reason for all these moon mishaps might be because its gravity isn't sufficient to provide astronauts with unambiguous information on which way is 'up'.

New deep sea mushroom-shaped organisms discovered Posted: 03 Sep 2014 01:26 PM PDT Scientists have discovered two new species of sea-dwelling, mushroom-shaped organisms. The new organisms are multicellular and mostly non-symmetrical, with a dense layer of gelatinous material between the outer skin cell and inner stomach cell layers.

Maternal singing during skin-to-skin contact benefits both preterm infants, mothers Posted: 04 Aug 2014 09:33 AM PDT A mother who sings to her preterm infant while providing 'kangaroo care,' or holding with direct skin-to-skin contact, may see improvements in both her child's and her own health. The finding comes from a study of 86 mother-infant pairs in a neonatal intensive care unit.

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