ScienceDaily: Top Science News |
- Flatworm flouts fundamental rule of biology: Worm regenerates without centrosome, a structure long thought necessary for cell division
- World’s first primate chimeric offspring produced: Research demonstrates not all embryonic stem cells are equal
- Down to the wire for silicon: Researchers create a wire four atoms wide, one atom tall
- Men and women have major personality differences: New report suggests previous measurements have underestimated variation between the sexes
- Bat brains parse sounds for multitasking
- New bandage spurs, guides blood vessel growth
| Posted: 05 Jan 2012 02:42 PM PST A tiny, freshwater flatworm found in ponds and rivers around the world that has long intrigued scientists for its remarkable ability to regenerate has now added a new wrinkle to biology. |
| Posted: 05 Jan 2012 01:47 PM PST Scientists have shed new light on how early embryonic stem cells develop and take part in formation of the primate species. The research has also resulted in the first successful birth of chimeric monkeys -- monkeys developed from stem cells taken from two separate embryos. |
| Down to the wire for silicon: Researchers create a wire four atoms wide, one atom tall Posted: 05 Jan 2012 01:18 PM PST The smallest wires ever developed in silicon -- just one atom tall and four atoms wide -- have been shown by a team of researchers to have the same current-carrying capability as copper wires. |
| Posted: 04 Jan 2012 02:48 PM PST Men and women have large differences in personality, according to a new study. The existence of such differences, and their extent, has been a subject of much debate, but the authors of the new report describe a new method for measuring and analyzing personality differences that they argue is more accurate than previous methods. |
| Bat brains parse sounds for multitasking Posted: 03 Jan 2012 10:55 AM PST Imagine listening to music while carrying on a conversation with friends. This type of multi-tasking is fairly easy to do, right? That's because our brains efficiently and effectively separate the auditory signals -- music to the right side; Conversation to the left. But what researchers have not been able to do in humans or animals is to see a parsing of duties at the single neuron level -- until now. |
| New bandage spurs, guides blood vessel growth Posted: 15 Dec 2011 10:58 AM PST Researchers have developed a bandage that stimulates and directs blood vessel growth on the surface of a wound. The bandage, called a "microvascular stamp," contains living cells that deliver growth factors to damaged tissues in a defined pattern. After a week, the pattern of the stamp "is written in blood vessels," the researchers report. |
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