ScienceDaily: Most Popular News |
- Patients with schizophrenia have impaired ability to imitate, brain mapping confirms
- Nanoscale optical switch breaks miniaturization barrier
- Timid jumping spider uses ant as bodyguard
- Volcanoes helped species survive ice ages
- Maternal separation stresses the baby, research finds
| Patients with schizophrenia have impaired ability to imitate, brain mapping confirms Posted: 14 Mar 2014 06:35 AM PDT A brain-mapping study of patients with schizophrenia has found that areas associated with the ability to imitate are impaired, providing new support for the theory that deficits in this basic cognitive skill may underlie the profound difficulty with social interactions that characterize the disorder. According to psychologists, imitation is something that we all do whenever we learn a new skill, whether it is dancing or how to behave in specific social situations. |
| Nanoscale optical switch breaks miniaturization barrier Posted: 13 Mar 2014 02:29 PM PDT An ultra-fast and ultra-small optical switch has been invented that could advance the day when photons replace electrons in the innards of consumer products ranging from cell phones to automobiles. The new optical device can turn on and off trillions of times per second. It consists of individual switches that are only one five-hundredths the width of a human hair (200 nanometers) in diameter. This size is much smaller than the current generation of optical switches and it easily breaks one of the major technical barriers to the spread of electronic devices that detect and control light: miniaturizing the size of ultrafast optical switches. |
| Timid jumping spider uses ant as bodyguard Posted: 11 Mar 2014 07:06 AM PDT Ants are the unlikely guardians of jumping spiders in their battle against aggressive spitting spiders. A timid jumping spider uses the scent of ants as a secret weapon to save itself from becoming the somewhat soggy prey of the predatory spitting spider. The downside to this plan is that jumping spiders are also a favorite snack of its very own saviors. To overcome this additional hazard, the spider has made yet another plan in the form of an ant-proof nest. |
| Volcanoes helped species survive ice ages Posted: 10 Mar 2014 12:21 PM PDT Researchers have found evidence that the steam and heat from volcanoes and heated rocks allowed many species of plants and animals to survive past ice ages, helping scientists understand how species respond to climate change. |
| Maternal separation stresses the baby, research finds Posted: 02 Nov 2011 09:49 AM PDT A woman goes into labor, and gives birth. The newborn is swaddled and placed to sleep in a nearby bassinet, or taken to the hospital nursery so that the mother can rest. Despite common practice, new research provides new evidence that separating infants from their mothers is stressful to the baby. |
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