ScienceDaily: Top Science News

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• 'Superlens' extends range of wireless power transfer
• Living on islands makes animals tamer
• Researchers develop artificial bone marrow; May be used to reproduce hematopoietic stem cells
• Teen concussions increase risk for depression
• Researchers invent 'sideways' approach to 2-D hybrid materials
• Research demonstrates 'guided missile' strategy to kill hidden HIV
• Theory for metamaterials that act as an analog computer
• Lions are critically endangered in West Africa
• Quantum mechanics explains efficiency of photosynthesis
• Antarctic emperor penguins may be adapting to warmer temperatures
• Rich world of fish biofluorescence illiuminated
• Seashell loss due to tourism increase may have global impact
• Natural hybridization produced dolphin species

'Superlens' extends range of wireless power transfer Posted: 10 Jan 2014 12:32 PM PST Researchers have for the first time demonstrated the feasibility of wireless power transfer using low-frequency magnetic fields over distances much larger than the size of the transmitter and receiver.

Living on islands makes animals tamer Posted: 10 Jan 2014 07:37 AM PST Biologists have found that island lizards are "tame" compared to their mainland relatives, confirming Charles Darwin's observations of island tameness. Darwin had noted that island animals often acted tame, and presumed that they had evolved to be so after coming to inhabit islands that lacked most predators. The researchers found island lizards were more accessible the farther the islands were from the mainland.

Researchers develop artificial bone marrow; May be used to reproduce hematopoietic stem cells Posted: 10 Jan 2014 07:26 AM PST Artificial bone marrow may be used to reproduce hematopoietic stem cells. A prototype has now been developed. The porous structure possesses essential properties of natural bone marrow and can be used for the reproduction of stem cells at the laboratory. This might facilitate the treatment of leukemia in a few years.

Teen concussions increase risk for depression Posted: 09 Jan 2014 02:55 PM PST Teens with a history of concussions are more than three times as likely to suffer from depression as teens who have never had a concussion, finds a new study.

Researchers invent 'sideways' approach to 2-D hybrid materials Posted: 09 Jan 2014 02:54 PM PST Researchers have pioneered a new technique for forming a two-dimensional, single-atom sheet of two different materials with a seamless boundary.

Research demonstrates 'guided missile' strategy to kill hidden HIV Posted: 09 Jan 2014 02:54 PM PST Researchers have deployed a potential new weapon against HIV -- a combination therapy that targets HIV-infected cells that standard therapies cannot kill.

Theory for metamaterials that act as an analog computer Posted: 09 Jan 2014 11:37 AM PST A new study shows that metamaterials can be designed to do "photonic calculus" as a light wave goes through them. A light wave, when described in terms of space and time, has a profile that can be thought of as a curve on a Cartesian plane. This theoretical material can perform a specific mathematical operation on that wave's profile, such as finding its derivative, as the light wave passes through the material.

Lions are critically endangered in West Africa Posted: 09 Jan 2014 10:25 AM PST The African lion is facing extinction across the entire West African region, according to new research. The West African lion once ranged continuously from Senegal to Nigeria, but the new article reveals there are now only an estimated 250 adult lions restricted to four isolated and severely imperiled populations. Only one of those populations contains more than 50 lions.

Quantum mechanics explains efficiency of photosynthesis Posted: 09 Jan 2014 06:20 AM PST Light-gathering macromolecules in plant cells transfer energy by taking advantage of molecular vibrations whose physical descriptions have no equivalents in classical physics, according to the first unambiguous theoretical evidence of quantum effects in photosynthesis.

Antarctic emperor penguins may be adapting to warmer temperatures Posted: 08 Jan 2014 09:43 PM PST A new study of four Antarctic emperor penguin colonies suggest that unexpected breeding behavior may be a sign that the birds are adapting to environmental change. Analysis of satellite observations reveals that penguin colonies moved from their traditional breeding grounds during years when the thin layer of ice (sea ice) formed later than usual to the much thicker floating ice shelves that surround the continent.

Rich world of fish biofluorescence illiuminated Posted: 08 Jan 2014 09:42 PM PST Scientists have released the first report of widespread biofluorescence in fishes, identifying more than 180 species that glow in a wide range of colors and patterns. The research shows that biofluorescence -- a phenomenon by which organisms absorb light, transform it, and eject it as a different color -- is common and variable among marine fish species, indicating its potential use in communication and mating.

Seashell loss due to tourism increase may have global impact Posted: 08 Jan 2014 09:37 PM PST Global tourism has increased fourfold over the last 30 years, resulting in human-induced seashell loss that may harm natural habitats worldwide, according to scientists.

Natural hybridization produced dolphin species Posted: 08 Jan 2014 09:37 PM PST A new study on the clymene dolphin, a small and sleek marine mammal living in the Atlantic Ocean, shows that this species arose through natural hybridization between two closely related dolphins species.

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