ScienceDaily: Top News |
- Why do some people never forget a face?
- Scalable amounts of liver and pancreas precursor cells created using new stem cell production method
- Simultaneous ice melt in Antarctic and Arctic
- A natural dye obtained from lichens may combat Alzheimer's disease
- 'Squeezed' quantum vacuum filled with atoms
- Where Antarctic predatory seabirds overwinter
- In the dragonfish's mouth: The next generation of superstars to stir up our galaxy
- Tumor-targeting compound points the way to new personalized cancer treatments
- Like humans, the paper wasp has a special talent for learning faces
- Cell surface mutation protects against common type of malaria
| Why do some people never forget a face? Posted: 02 Dec 2011 12:57 PM PST "Face recognition is an important social skill, but not all of us are equally good at it," says a cognitive psychologist. But what accounts for the difference? A new study provides the first experimental evidence that the inequality of abilities is rooted in the unique way in which the mind perceives faces.  |
| Scalable amounts of liver and pancreas precursor cells created using new stem cell production method Posted: 02 Dec 2011 12:55 PM PST Scientists in Canada have overcome a key research hurdle to developing regenerative treatments for diabetes and liver disease with a technique to produce medically useful amounts of endoderm cells from human pluripotent stem cells. The research can be transferred to other areas of stem cell research helping scientists to navigate the route to clinical use known as the "valley of death."  |
| Simultaneous ice melt in Antarctic and Arctic Posted: 02 Dec 2011 12:55 PM PST A new article shows that the two hemispheres attained their maximum ice sheet size at nearly the same time and started melting 19,000 years ago. This simultaneous melting was presumably caused by changes in the global sea level and deepwater circulation in the Atlantic Ocean.  |
| A natural dye obtained from lichens may combat Alzheimer's disease Posted: 02 Dec 2011 12:55 PM PST A red dye from lichens that has been used for centuries to color fabrics and food and a related substance appear to reduce the abundance of small toxic protein aggregates in Alzheimer's disease. Further research with animal models is needed to determine whether this new approach will be useful for therapy development.  |
| 'Squeezed' quantum vacuum filled with atoms Posted: 02 Dec 2011 12:52 PM PST Quantum theory is known for its peculiar concepts that appear to contradict the fundamental principles of traditional physics. Researchers have now succeeded in creating a special quantum state between two mesoscopic gases with approximately 500 atoms. The state is known as a "squeezed" vacuum, in which measuring one gas affects the results of the measurement on the other. To produce these results the team had to develop a novel detection technique to measure values in atomic gases that were previously unobtainable.  |
| Where Antarctic predatory seabirds overwinter Posted: 02 Dec 2011 06:10 AM PST When it comes to choosing their wintering destinations Antarctic skuas are flexible. According to a new study, a great part of the South Polar skuas spend the Antarctic winter in the Northern Atlantic. At the same time about one third of the same species overwinters in the Northern Pacific, tens of thousands of miles away.  |
| In the dragonfish's mouth: The next generation of superstars to stir up our galaxy Posted: 02 Dec 2011 06:10 AM PST Astronomers have found the most numerous batch of young, supermassive stars yet observed in our galaxy: hundreds of thousands of stars, including several hundreds of the most massive kind -blue stars dozens of times heavier than our Sun. The light these newborn stars emit is so intense it has pushed out and heated the gas that gave them birth, carving out a glowing hollow shell about a hundred light-years across.  |
| Tumor-targeting compound points the way to new personalized cancer treatments Posted: 01 Dec 2011 01:35 PM PST One major obstacle in the fight against cancer is that anticancer drugs often affect normal cells in addition to tumor cells, resulting in significant side effects. Yet research into development of less harmful treatments geared toward the targeting of specific cancer-causing mechanisms is hampered by lack of knowledge of the molecular pathways that drive cancers in individual patients.  |
| Like humans, the paper wasp has a special talent for learning faces Posted: 01 Dec 2011 11:27 AM PST Though paper wasps have brains less than a millionth the size of humans', they have evolved specialized face-learning abilities analogous to the system used by humans, according to researchers.  |
| Cell surface mutation protects against common type of malaria Posted: 01 Dec 2011 07:54 AM PST A mutation on the surface of human red blood cells provides protection against malaria caused by the parasite Plasmodium vivax, new research shows. The investigators found the change makes it harder for the parasite to lock onto the cell and gain entry.  |
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