Posted By News On January 23, 2015 - 7:59pm
Scientists using ice-penetrating radar data collected by NASA's Operation IceBridge and earlier airborne campaigns have built the first comprehensive map of layers deep inside the Greenland Ice Sheet, opening a window on past climate conditions and the ice sheet's potentially perilous future.
This new map allows scientists to determine the age of large swaths of the second largest mass of ice on Earth, an area containing enough water to raise ocean levels by about 20 feet.
Posted By News On January 23, 2015 - 7:46pm
An international team of scientists has taken a new path in the research into causes of epilepsy: The researchers determined the networks of the active genes and, like a dragnet, looked for the "main perpetrators" using a computer model. In doing so, they discovered the molecule sestrin-3 as a central switch. In animal models, the scientists were able to demonstrate that inhibition of sestrin-3 leads to a reduction in seizures.
Posted By News On January 23, 2015 - 7:14pm
People have a distinctive way of talking to babies and small children: We speak more slowly, using a sing-song voice, and tend to use cutesy words like "tummy". While we might be inclined to think that we talk this way because it is easier for children to understand, new research published in Psychological Science suggests that, surprisingly, mothers may actually speak less clearly to their infants than they do to adults.
Posted By News On January 23, 2015 - 6:47pm
Lorentz invariance (LI) is a cornerstone of modern physics, and strongly supported by observations.
In fact, all the experiments carried out so far are consistent with it, and no evidence to show that such a symmetry needs to be broken at a certain energy scale. Nevertheless, there are various reasons to construct gravitational theories with broken LI. In particular, our understanding of space-times at Plank scale is still highly limited, and the renomalizability and unitarity of gravity often lead to the violation of LI.
Posted By News On January 23, 2015 - 6:43pm
To control one's dreams and to live out there what is impossible in real life - a truly tempting idea. Some persons - so-called lucid dreamers -can do this. Researchers from the Max Planck Institute for Human Development in Berlin and the Max Planck Institute of Psychiatry in Munich have discovered that the brain area which enables self-reflection is larger in lucid dreamers. Thus, lucid dreamers are possibly also more self-reflecting when being awake.
Posted By News On January 23, 2015 - 6:06pm
The weather impacts not only upon our mood but also our voice. An international research team including scientists from the Max Planck Institutes for Psycholinguistics, Evolutionary Anthropology and Mathematics in the Sciences has analyzed the influence of humidity on the evolution of languages. Their study has revealed that languages with a wide range of tone pitches are more prevalent in regions with high humidity levels. In contrast, languages with simpler tone pitches are mainly found in drier regions.
Posted By News On January 23, 2015 - 6:02pm
Five genetic variants that influence the size of structures within the human brain have been discovered by an international team that included a Georgia State University researcher.
Posted By News On January 23, 2015 - 5:06pm
Want to ace that test tomorrow? Here's a tip: Put down the coffee and hit the sack.
Scientists have long known that sleep, memory and learning are deeply connected. Most animals, from flies to humans, have trouble remembering when sleep deprived, and studies have shown that sleep is critical in converting short-term into long-term memory, a process known as memory consolidation.
But just how that process works has remained a mystery.