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E.g., 07/29/2015
E.g., 07/29/2015
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  • Scicurious

    How trans fats oozed into our diet and out again

    On June 16 the Food and Drug Administration made the final call: Trans fats are no longer “generally recognized as safe” for use in food. That means that food manufacturers have three years to ooze these cheap and useful fats out of their processed foods.

    In fact, most of them already have. Trans fat —a...

    07/29/2015 - 14:24 Nutrition, Science & Society
  • News

    Resveratrol’s anticancer benefits show up in low doses

    Less can be more.

    Low doses of resveratrol, a chemical found in red grapes and some other foods, were better than higher ones at stimulating cancer-fighting processes, researchers report July 29 in Science Translational Medicine. Mice with a genetic predisposition for colon cancer also developed...

    07/29/2015 - 14:00 Biomedicine, Cancer, Physiology
  • First

    Distant star has northern lights–like display

    Shimmering auroras are common over the poles of Earth and have been spotted around other planets. Now astronomers have seen an aurora of a star about 18 light-years away. A northern lights–like display, the first seen on a star, dances over a faint orb named LSR J1835 + 3259, researchers report in the July 30 Nature....

    07/29/2015 - 13:00 Astronomy
  • News

    Remains of Jamestown leaders discovered

    View the video

    In an answer to archaeologists’ prayers, excavations at the site of the first English church in what is now the United States have cast light on the lives and deaths of four key players at Virginia’s Jamestown colony more than 400 years ago.

    Archaeologists discovered the site of the church, which was used from 1608 to 1617 and hosted Pocahontas’...

    07/28/2015 - 18:36 Anthropology, Archaeology
  • Feature

    Brain activity in unconscious patients offers new views of awareness

    The average brain weighs about 1.3 kilograms and consumes 20 percent of the body’s energy budget. Much of that energy powers the brain’s 86 billion nerve cells, or neurons, which conduct tiny electrical currents that can travel close to 120 meters per second. A typical neuron transmits its signals to about 7,000 neighboring cells and to cells beyond. These neurons assemble into structures...

    07/28/2015 - 17:47 Neuroscience
  • Science Visualized

    Encased algae create kaleidoscope of color

    Under a microscope, carefully arranged diatoms form a dazzling display.

    Diatoms are single-celled algae (in the stramenopile supergroup) that live in sunny, wet habitats. The organisms come in many shapes and sport natural pigments of green, gold and brown. To complete their look, diatoms extract silica, a mineral used in glass, from the water and erect intricate outer skeletons. The...

    07/28/2015 - 17:14 Ecology, Oceans
  • Wild Things

    On the importance of elephant poop

    In the last century or so, Asian elephants have lost some 95 percent of their habitat and 90 percent of their population, and there are now fewer than 50,000 Elphas maximus elephants. One consequence of the loss is that some plant species are losing a key seed disperser. Elephants eat the plant’s fruit and defecate the seeds,...

    07/28/2015 - 16:57 Animals, Plants
  • It's Alive

    Baby seahorses’ toddler phase

    Newborn seahorses look like their parents. They already have the power for beyond-fast strikes at prey. And their tails end with a miniature up-curl like a grown-up’s prehensile marvel. But they’re babies, and they bumble.

    That’s the impression of evolutionary morphologist Dominique Adriaens, who has watched several Hippocampus species born in his lab at Ghent University in...

    07/28/2015 - 14:14 Animals, Biophysics, Evolution
  • News

    Age affects brain’s response to anesthesia

    Anesthesia elicits different patterns of brain waves in the very young and very old, scientists have found. Understanding these distinctions may ultimately lead to brain monitors that could make surgery safer for these vulnerable patient populations. 

    These findings are groundbreaking, says neuroanesthesiologist Stacie Deiner of Icahn School of Medicine at Mount Sinai in New York City....

    07/28/2015 - 11:47 Neuroscience
  • Screentime

    Help ornithologists develop bird photo ID tool

    If you have a terrific picture of a Tennessee warbler, you can help the Cornell Lab of Ornithology improve its Merlin Bird Photo ID program. Upload your picture and put dots on the beak, eye and tail tip. Then, using patterns in the data, Merlin attempts to identify the bird. The aim is to help Cornell create a mobile device tool for...

    07/28/2015 - 07:00 Animals, Technology