ScienceDaily: Top Science News |
- Deep sleep may act as fountain of youth in old age
- X-ray study reveals long-sought insights into potential drug target
- Powers of attraction could decimate deadly starfish
- Fruits and vegetables' latest superpower? Lowering blood pressure
- Call to phase out lead bullets at shooting ranges
- SuperAger brains shrink more slowly than peers' brains
- Melting snow contains a toxic cocktail of pollutants
- 10,000 years of genetic continuity in northwest North America, study reveals
- Neptune's journey during early planet formation was 'smooth and calm'
- Skeletons developed as chemistry of oceans changed
- The dynamic surface tension of water
| Deep sleep may act as fountain of youth in old age Posted: 05 Apr 2017 11:44 AM PDT As we grow old, our nights are frequently plagued by bouts of wakefulness, bathroom trips and other nuisances as we lose our ability to generate the deep, restorative slumber we enjoyed in youth. But that does not mean the elderly need less sleep, according to neuroscientists.       |
| X-ray study reveals long-sought insights into potential drug target Posted: 05 Apr 2017 10:10 AM PDT Researchers hope to design a new generation of drugs against an array of deadly diseases. One of the key challenges is understanding a particular class of proteins adorning cell surfaces, which are the targets of the majority of pharmaceutical drugs. Scientists have now examined one promising drug target in luminous detail, using a device known as an X-ray free electron laser, or XFEL.  |
| Powers of attraction could decimate deadly starfish Posted: 05 Apr 2017 10:10 AM PDT Scientists studying the Great Barrier Reef have made a breakthrough discovery that could protect one of the Seven Natural Wonders. Biologists believe they can use the powers of attraction to decimate one of the reef's fiercest enemies.  |
| Fruits and vegetables' latest superpower? Lowering blood pressure Posted: 05 Apr 2017 10:09 AM PDT A new study links increased dietary potassium with lower blood pressure.  |
| Call to phase out lead bullets at shooting ranges Posted: 05 Apr 2017 07:19 AM PDT While there is no safe level of lead exposure, US health bodies regard 5 micrograms per deciliter of blood as the level that is cause for concern. This research finds that people using shooting ranges can record blood-lead levels as high as 40 micrograms.  |
| SuperAger brains shrink more slowly than peers' brains Posted: 04 Apr 2017 01:01 PM PDT The brains of SuperAgers (those 80 years old and older whose memories are as sharp as healthy people in their 50s and 60s) shrink much slower than their age-matched peers, resulting in a greater resistance to 'typical' memory loss and dementia, a new path-breaking study that shows.  |
| Melting snow contains a toxic cocktail of pollutants Posted: 04 Apr 2017 01:00 PM PDT With spring finally here and warmer temperatures just around the corner, snow will slowly melt away, releasing us from the clutches of winter. However, that's not the only thing that the melting snow will release. Researchers have found that urban snow accumulates a toxic cocktail from car emissions -- pollutants that are in turn unleashed into the environment as the weather warms up.  |
| 10,000 years of genetic continuity in northwest North America, study reveals Posted: 04 Apr 2017 01:00 PM PDT A study of the DNA in ancient skeletal remains adds to the evidence that indigenous groups living today in southern Alaska and the western coast of British Columbia are descendants of the first humans to make their home in northwest North America more than 10,000 years ago.  |
| Neptune's journey during early planet formation was 'smooth and calm' Posted: 04 Apr 2017 07:48 AM PDT A major discovery has been made on the formation of icy bodies within the Kuiper Belt, unlocking unique evidence that Neptune's movement during early planet formation was a 'smooth and calm' journey.  |
| Skeletons developed as chemistry of oceans changed Posted: 04 Apr 2017 07:47 AM PDT Skeletons and shells first came into being 550 million years ago as the chemical make-up of seawater changed, a study suggests.  |
| The dynamic surface tension of water Posted: 03 Apr 2017 11:02 AM PDT The surface tension of a liquid is a measure of the cohesive forces that hold the molecules together. It is responsible for a water drop assuming a spherical shape and for the effects of surfactants to produce bubbles and foams. The value of the surface tension of water at room temperature is known accurately to four significant figures and is recommended as a standard for the calibration of other devices. New research shows that this value is not as universal as previously believed.  |
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