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- Decades-old amber collection offers new views of a lost world: Tiny grasshopper encased in amber
- A blood test for suicide risk? Alterations to a single gene could predict risk of suicide attempt
- Weighing the Milky Way: Researchers devise precise method for calculating the mass of galaxies
- Vision-correcting display makes reading glasses so yesterday
- The Quantum Cheshire Cat: Can neutrons be located at a different place than their own spin?
- Social origins of intelligence in the brain
- Diet affects males' and females' gut microbes differently
- Healthy lifestyle may buffer against stress-related cell aging
- Running reduces risk of death regardless of duration, speed
- Learning the smell of fear: Mothers teach babies their own fears via odor, animal study shows
- Fist bumping beats germ-spreading handshake
| Decades-old amber collection offers new views of a lost world: Tiny grasshopper encased in amber Posted: 30 Jul 2014 07:41 AM PDT Scientists are searching through a massive collection of 20-million-year-old amber found in the Dominican Republic more than 50 years ago, and the effort is yielding fresh insights into ancient tropical insects and the world they inhabited. Perhaps the most striking discovery thus far is that of a pygmy locust, a tiny grasshopper the size of a rose thorn that lived 18- to 20-million years ago and fed on moss, algae and fungi. |
| A blood test for suicide risk? Alterations to a single gene could predict risk of suicide attempt Posted: 30 Jul 2014 01:34 AM PDT Researchers say they have discovered a chemical alteration in a single human gene linked to stress reactions that, if confirmed in larger studies, could give doctors a simple blood test to reliably predict a person's risk of attempting suicide. |
| Weighing the Milky Way: Researchers devise precise method for calculating the mass of galaxies Posted: 29 Jul 2014 07:49 PM PDT Does the Milky Way look fat in this picture? Has Andromeda been taking skinny selfies? Using a new, more accurate method for measuring the mass of galaxies, and international group of researchers has shown that the Milky Way has half the Mass of the Andromeda Galaxy. |
| Vision-correcting display makes reading glasses so yesterday Posted: 29 Jul 2014 12:29 PM PDT Researchers are developing vision-correcting displays that can compensate for a viewer's visual impairments to create sharp images without the need for glasses or contact lenses. The technology could potentially help those who currently need corrective lenses to use their smartphones, tablets and computers, and could one day aid people with more complex visual problems. |
| The Quantum Cheshire Cat: Can neutrons be located at a different place than their own spin? Posted: 29 Jul 2014 09:38 AM PDT Can neutrons be located at a different place than their own spin? A quantum experiment demonstrates a new kind of quantum paradox. The Cheshire Cat featured in Lewis Caroll's novel "Alice in Wonderland" is a remarkable creature: it disappears, leaving its grin behind. Can an object be separated from its properties? It is possible in the quantum world. In an experiment, neutrons travel along a different path than one of their properties -- their magnetic moment. This "Quantum Cheshire Cat" could be used to make high precision measurements less sensitive to external perturbations. |
| Social origins of intelligence in the brain Posted: 29 Jul 2014 08:54 AM PDT By studying the injuries and aptitudes of Vietnam War veterans who suffered penetrating head wounds during the war, scientists are tackling -- and beginning to answer -- longstanding questions about how the brain works. The researchers found that brain regions that contribute to optimal social functioning also are vital to general intelligence and to emotional intelligence. This finding bolsters the view that general intelligence emerges from the emotional and social context of one's life. |
| Diet affects males' and females' gut microbes differently Posted: 29 Jul 2014 08:54 AM PDT The microbes living in the guts of males and females react differently to diet, even when the diets are identical, according to a new study. These results suggest that therapies designed to improve human health and treat diseases through nutrition might need to be tailored for each sex. |
| Healthy lifestyle may buffer against stress-related cell aging Posted: 29 Jul 2014 04:35 AM PDT A new study shows that while the impact of life's stressors accumulate overtime and accelerate cellular aging, these negative effects may be reduced by maintaining a healthy diet, exercising and sleeping well. |
| Running reduces risk of death regardless of duration, speed Posted: 28 Jul 2014 01:23 PM PDT Running for only a few minutes a day or at slow speeds may significantly reduce a person's risk of death from cardiovascular disease compared to someone who does not run, according to a new study. |
| Learning the smell of fear: Mothers teach babies their own fears via odor, animal study shows Posted: 28 Jul 2014 12:36 PM PDT Babies can learn what to fear in the first days of life just by smelling the odor of their distressed mothers', new research suggests. And not just "natural" fears: If a mother experienced something before pregnancy that made her fear something specific, her baby will quickly learn to fear it too -- through her odor when she feels fear. |
| Fist bumping beats germ-spreading handshake Posted: 28 Jul 2014 09:37 AM PDT "Fist bumping" transmits significantly fewer bacteria than either handshaking or high-fiving, while still addressing the cultural expectation of hand-to-hand contact between patients and clinicians, according to a new study. |
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