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Updated: 11 hours 43 min ago

In wake of uproar over Facebook’s emotional manipulation study, bioethics scholars say new rules are 'moral imperative'

Mon, 09/15/2014 - 18:09
Using the recent debate over the Facebook-Cornell "emotional contagion" study as a starting point, an international team of research ethics scholars begin mapping the ethics terrain of large-scale social computing research in a new article.

Habitual Facebook users: Suckers for social media scams?

Mon, 09/15/2014 - 16:08
A new study finds that habitual use of Facebook makes individuals susceptible to social media phishing attacks by criminals, likely because they automatically respond to requests without considering how they are connected with those sending the requests, how long they have known them, or who else is connected with them.

Run, cheetah, run: New algorithm enables cheetah robot to run and jump, untethered, across grass

Mon, 09/15/2014 - 15:45
Speed and agility are hallmarks of the cheetah: The big predator is the fastest land animal on Earth, able to accelerate to 60 mph in just a few seconds. As it ramps up to top speed, a cheetah pumps its legs in tandem, bounding until it reaches a full gallop.

New math and quantum mechanics: Fluid mechanics suggests alternative to quantum orthodoxy

Fri, 09/12/2014 - 16:06
The central mystery of quantum mechanics is that small chunks of matter sometimes seem to behave like particles, sometimes like waves. For most of the past century, the prevailing explanation of this conundrum has been what's called the "Copenhagen interpretation" -- which holds that, in some sense, a single particle really is a wave, smeared out across the universe, that collapses into a determinate location only when observed. But some founders of quantum physics -- notably Louis de Broglie -- championed an alternative interpretation, known as "pilot-wave theory," which posits that quantum particles are borne along on some type of wave. According to pilot-wave theory, the particles have definite trajectories, but because of the pilot wave's influence, they still exhibit wavelike statistics. Now a professor of applied mathematics believes that pilot-wave theory deserves a second look.

Moving silicon atoms in graphene with atomic precision

Fri, 09/12/2014 - 15:24
In recent years, it has become possible to see directly individual atoms using electron microscopy -- especially in graphene, the one-atom-thick sheet of carbon. Scientists have now shown how an electron beam can move silicon atoms through the graphene lattice without causing damage. The research combines advanced electron microscopy with demanding computer simulations.

New family of materials for energy-efficient information storage and processing

Fri, 09/12/2014 - 15:24
Hexagonal rare earth ferrites have been demonstrated to exhibit both spontaneous electric and magnetic dipole moments (as a rare case), which may enable couplings of the static electric and magnetic fields in these materials, suggesting application in energy-efficient information storage and processing.

Cutting the cloud computing carbon cost

Fri, 09/12/2014 - 15:24
Researchers have investigated how cloud computing systems might be optimized for energy use and to reduce their carbon footprint.

Scientists fabricate single-photon sources in solid matter

Fri, 09/12/2014 - 01:09
A breakthrough in quantum information processing was achieved using state-of-the-art diamond growth technology. A research group has successfully fabricated for the first time in the world single-photon sources of SiV (silicon vacancy) centers – one of the color centers in diamond during the growth of thin film diamond, which have high purity and crystalline quality – by introducing them at extremely low concentrations.

Cutting the cord on soft robots: Machine walks through snow, flames and can be run over by cars

Thu, 09/11/2014 - 22:07
Engineers have developed the world's first untethered soft robot -- and demonstrated that the quadruped, which can literally stand up and walk away from its designers, can walk through snow, fire and even be run over by a car. The hope is that such robots might one day serve as a search and rescue tool following disasters.

New ICD-10 coding system may cloud hospital safety

Thu, 09/11/2014 - 20:31
Changes in how medical diagnoses are coded under the latest international disease classification system – better known as the ICD-10 codes – may complicate the assessment of hospital safety, say researchers.

New species of electrons can lead to better computing

Thu, 09/11/2014 - 17:54
Electrons that break the rules and move perpendicular to the applied electric field could be the key to delivering next generation, low-energy computers.

Facebook posts reveal personality traits, but recent changes could make it harder to do so

Thu, 09/11/2014 - 17:00
People can accurately detect the personality traits of strangers through Facebook activity; however, changes to the social media site in the past three years could be making it harder to do so.

Euro creates unified pricing across countries, study finds

Thu, 09/11/2014 - 16:42
New research finds that for many goods, the most important factor in pricing is whether the countries use different currencies.

The quantum revolution is a step closer: New way to run a quantum algorithm

Thu, 09/11/2014 - 14:30
A new way to run a quantum algorithm using much simpler methods than previously thought has been discovered. These findings could dramatically bring forward the development of a 'quantum computer' capable of beating a conventional computer.

World's largest DNA origami created

Thu, 09/11/2014 - 13:47
Researchers have created the world's largest DNA origami, which are nanoscale constructions with applications ranging from biomedical research to nanoelectronics. DNA origami are self-assembling biochemical structures that are made up of two types of DNA.

Teachers risk role confusion on Facebook

Thu, 09/11/2014 - 13:29
Using Facebook for class discussions sounds like a great idea, but before teachers mix with their students on social media, they must make sure the roles in a group are clear. A new book features research on how role confusion can create problems – and what can be done to avoid it.

Experts making maps through Google Earth to predict malaria

Wed, 09/10/2014 - 22:59
Experts are working to create an online platform that health workers around the world can use to predict where malaria is likely to be transmitted using data on Google Earth Engine. The goal is to enable resource poor countries to wage more targeted and effective campaigns against the mosquito-borne disease, which kills 600,000 people a year, most of them children.

Electronics that need very little energy? Nanotechnology used to help cool electrons with no external sources

Wed, 09/10/2014 - 17:25
A team of researchers has discovered a way to cool electrons to minus 228 degrees Celsius without external means and at room temperature, an advancement that could enable electronic devices to function with very little energy.

Cyberbullying increases as students age, study finds

Wed, 09/10/2014 - 17:25
As students' age they are verbally and physically bullied less but cyberbullied more, non-native English speakers are not bullied more often than native English speakers and bullying increases as students' transition from elementary to middle school. Those are among the findings of a wide-ranging paper just released.

Algorithms reveal forecasting power of tweets, predicts individual's behavior

Wed, 09/10/2014 - 17:24
Researchers used 500 million tweets to develop algorithms that not only paint a picture of everyday human dynamics, but can predict an individual's behavior hours in advance.