Senin, 24 Oktober 2016

ScienceDaily: Top Science News

ScienceDaily: Top Science News

Unusual quantum liquid on crystal surface could inspire future electronics

Posted: 21 Oct 2016 12:56 PM PDT

For the first time, an experiment has directly imaged electron orbits in a high-magnetic field, illuminating an unusual collective behavior in electrons and suggesting new ways of manipulating the charged particles.

'Mean girl' meerkats can make twice as much testosterone as males

Posted: 20 Oct 2016 01:49 PM PDT

Testosterone. It's often lauded as the hormone that makes males bigger, bolder, stronger. Now a pair of studies has identified one group of animals, the meerkats of the southern tip of Africa, in which females can produce even more testosterone than males.

Prey-foraging: The collective search or lone-wolf approach?

Posted: 20 Oct 2016 11:30 AM PDT

Wolves in Canada, lions in the Serengeti or fishermen in the Southern Ocean, either hunt alone keeping the spoils to themselves or in packs sharing the bounty with others. Deciding whether to tell fellow predators about some tasty prey is not an easy decision and requires the predator to weigh up many pros and cons.

Ancient human history more complex than previously thought, researchers say

Posted: 20 Oct 2016 11:26 AM PDT

Relationships between the ancestors of modern humans and other archaic populations such as Neanderthals and Denisovans were likely more complex than previously thought, involving interbreeding within and outside Africa, according to a new estimator developed by geneticists.
READ MORE - ScienceDaily: Top Science News


Minggu, 23 Oktober 2016

ScienceDaily: Top Science News

ScienceDaily: Top Science News

Climate change impairs survival instincts of fish and can make them swim towards predators

Posted: 21 Oct 2016 10:57 AM PDT

Fish farms may hold the key to studying the impact of rising carbon dioxide on marine life, and help researchers understand if fish could adapt to climate change.

The universe is expanding at an accelerating rate, or is it?

Posted: 21 Oct 2016 09:32 AM PDT

Five years ago, the Nobel Prize in Physics was awarded to three astronomers for their discovery that the universe is expanding at an accelerating pace. This led to the widespread acceptance of the idea that the universe is dominated by a mysterious substance named 'dark energy' that drives this accelerating expansion. Now, a team of scientists has cast doubt on this standard cosmological concept. The evidence for acceleration may be flimsier than previously thought, they say, with the data being consistent with a constant rate of expansion.

New evolutionary finding: Species take different genetic paths to reach same trait

Posted: 20 Oct 2016 01:51 PM PDT

Biologists have been contemplating evolutionary change since Charles Darwin first explained it. Using modern molecular tools and fieldwork, biologists have demonstrated for the first time that different species can take different genetic paths to develop the same trait.

Engineers design ultralow power transistors that could function for years without a battery

Posted: 20 Oct 2016 11:08 AM PDT

A newly-developed form of transistor opens up a range of new electronic applications including wearable or implantable devices by drastically reducing the amount of power used. Devices based on this type of ultralow power transistor could function for months or even years without a battery by 'scavenging' energy from their environment. 

Link found between selfie viewing, decreased self-esteem

Posted: 19 Oct 2016 11:18 AM PDT

Frequent viewing of selfies through social network sites like Facebook is linked to a decrease in self-esteem and life satisfaction, according to researchers. Viewing behavior is also called "lurking" -- when a person does not participate in posting or liking social content, but is just an observer. This form of participation in social media may sound like it should have little effect on how humans view themselves, but the study has revealed the exact opposite.

Vast carbon residue of ocean life

Posted: 18 Oct 2016 04:41 PM PDT

The oceans hold a vast reservoir -- 700 billion tons -- of carbon, dissolved in seawater as organic matter, often surviving for thousands of years after being produced by ocean life. Yet, little is known about how it is produced, or how it's being impacted by the many changes happening in the ocean.
READ MORE - ScienceDaily: Top Science News


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