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Gene-modified cow makes milk rich in protein, study finds

October 2, 2012

cows

Scientists have altered the genes of a dairy cow to produce milk that’s rich in a protein used in numerous food products and lacking in a component that causes allergies in humans.

Using a process called RNA-interference that turns certain genes on or off, scientists from New Zealand produced a cow whose milk had increased casein, a protein used to make cheese and other foods, and almost no… read more

Record 100,000 entangled photons detected

October 31, 2012

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A whopping 100,000 entangled photons have been detected for the first time, beating the previous record of just 12, New Scientist reports.

The technique could be useful for safely sharing keys used in encrypted communications.

Entangled photons have linked quantum states, such that measuring the state of one photon determines the state of the others, no matter how far apart they are.

Detecting entanglement usually… read more

UCSD introduces Diego-san, a baby robot with ‘tude

Move over, Roboy, there's a new kidbot in town....
January 10, 2013

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UCSD has introduced Diego-san, a new humanoid robot who mimicks the expressions of a one-year-old child

Demonstrated at CES and in a video, the robot will be used in studies on sensory-motor and social development — how babies “learn” to control their bodies and to interact with other people.

Diego-san’s hardware was developed by two leading robot manufacturers: the head by Hansonread more

High-capacity 3D transparent memory a step closer to reality

October 4, 2012

Transparent Memory

Rice University researchers led by chemist James Tour have just written a paper in the journal Nature Communications that describes transparent, non-volatile, heat- and radiation-resistant memory chips created in Tour’s lab from silicon oxide sandwiched between electrodes of graphene, the single-atom-thick form of carbon.

More than four years ago, they discovered it was possible to make bits of computer memory from silicon and carbon, but make them much smaller and perhaps better than anything… read more

Neuroscape Lab visualizes live brain functions using dramatic images

Repurposing fitness and game technologies into targeted brain therapies
March 17, 2014

GlassBrain (credit: UCSF)

UC San Francisco neuroscientist Adam Gazzaley, MD, PhD, is hoping to paint a fuller picture of what is happening in the minds and bodies of those suffering from brain disease with his new lab, Neuroscape, which bridges the worlds of neuroscience and high-tech.

Gazzaley aims to eliminate the need to immobilize subjects inside big, noisy machines or tether them to computers — making… read more

Crowdsourcing expertise

August 16, 2012

Can a crowd be an expert? Two UVM scientists think the answer is yes. (photo: James Cridland)

Crowdsourcing — posing a question or asking for help from a large group of people — has allowed many problems to be solved, like scan for new galaxies and climate modeling, that would be impossible for experts alone..

But what if the crowd was asked to decide what questions to ask in the first place?

University of Vermont researchers Josh Bongard and Paul Hines decided to explore  that question… read more

What if quantum entanglement worked on the macroscopic level?

July 26, 2013

entangled photons

Quantum entanglement works for photons, and even molecuiles, but what about larger objects?

University of Geneva (UNIGE) researchers managed to entangle crystals in 2011, but now they have entangled two optic fibers, populated by 500 photons.

To do this, the team first created an entanglement between two fiber optics on a microscopic level before moving it to the macroscopic level. The entangled state survived… read more

The computing trend that will change everything

April 10, 2012

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The electrical efficiency of computing (the number of computations that can be completed per kilowatt-hour of electricity used) has doubled every year and a half since the dawn of the computer age.

The power needed to perform a task requiring a fixed number of computations will continue to fall by half every 1.5 years (or a factor of 100 every decade). As a result, even smaller and less power-intensive computing devices… read more

‘Hippie chimp’ genome sequenced

June 15, 2012

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Unlike their chimpanzee relatives, bonobos shun violent male dominance and instead forge bonds through food-sharing, play, and casual sex.

An 18-year-old female named Ulindi has now become the first bonobo (Pan paniscus) to have its genome sequenced. Scientists hope that the information gleaned will explain the stark behavioural differences between bonobos and common chimpanzees (Pan troglodytes) and help to identify the genetic changes that set humans apart from… read more

Obama and Romney tackle 14 top science questions

September 6, 2012

TopScienceQuestionsAnswers2012

Scientific American partnered with grassroots organization ScienceDebate.org earlier this summer to encourage the two main presidential candidates — Barack Obama and Mitt Romney — to answer 14 questions on some of the biggest scientific and technological challenges facing the nation. President Obama and Governor Romney have now answered these Top American Science Questions.

Obama or Romney? Face-reading software monitors viewers’ responses to debate

November 5, 2012

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New Scientist asked readers to take part in an online project designed to give a more fine-grained view of the public’s reactions to politics.

About 80 readers watched clips from the third and final presidential debate while face-reading software recorded subtle emotional cues via webcams. Developed by Affectiva of Waltham, Massachusetts, the software tracked six categories of expression: smiles, surprise,… read more

Cheap, easy technique to snip DNA could revolutionize gene therapy

January 8, 2013

The bacterial enzyme Cas9 is the engine of RNA-programmed genome engineering in human cells (credit: Jennifer Doudna/UC Berkeley)

A simple, precise, and inexpensive method for cutting DNA to insert genes into human cells could transform genetic medicine, making routine what now are expensive, complicated and rare procedures for replacing defective genes to fix genetic disease or even cure AIDS.

Discovered last year, two new papers published last week in the journal Science Express demonstrate that the technique also works in human cells.

“The ability… read more

Earth-sized planets in habitable zones are more common than previously thought

March 14, 2013

(Credit: Chester Harman)

The number of potentially habitable planets in our galaxy is greater than previously thought, according to a  new analysis by a Penn State researcher, and some of those planets are likely lurking around nearby stars.

“We now estimate that if we were to look at 10 of the nearest small stars we would find about four potentially habitable planets,” said Ravi Kopparapu, an Evan… read more

A fatigue detection device to help keep your eyes on the road

July 17, 2013

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An EPFL student, Peugeot Citroën, has developed a video analysis algorithm able to estimate the level of a driver’s fatigue based on the degree of eyelid closure and has built a prototype to test it in real driving conditions.

Nearly a third of highway accidents are caused by fatigue. Nowadays, there exist several attention detection systems for drivers, such as detection of loss of vehicle… read more

Proposed satellite would beam solar power to earth

April 9, 2012

Space-based energy factory, SPS-ALPHA --- the Solar Power Satellite via Arbitrarily Large PHased Array (credit: John Mankins)

A NASA-funded new approach to power-beaming solar-power satellites has been developed by John Mankins, who led the first NASA solar-power-satellite development team in the 90s.

Called the SPS-ALPHA (Solar Power Satellite via Arbitrarily Large PHased Array), this “first practical solar-power satellite concept” uses a novel “biomimetic” approach.

Mankins said that this project would make possible the construction of huge platforms from tens of thousands of small elements that can deliver… read more

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