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Updated: 1 min 43 sec ago

Can YouTube save your life?

Fri, 08/29/2014 - 14:34
Only a handful of CPR and basic life support videos available on YouTube provide instructions which are consistent with recent health guidelines, according to a new study. Only 11.5% of the analyzed videos were found to be completely compatible with 2010 CPR guidelines with regard to sequence of interviews. "Although well-designed videos can create awareness and be useful as tools in training, they can never replace hands-on instruction from a properly qualified health practitioner," said one author.

'Face time' for the diagnoses of cardiac disease

Fri, 08/29/2014 - 14:34
To the careful observer, a person's face has long provided insight into what is going on beneath the surface. Now, with the assistance of a web camera and software algorithms, the face can also reveal whether or not an individual is experiencing atrial fibrillation, a treatable but potentially dangerous heart condition.

Assortativity signatures of transcription factor networks contribute to robustness

Fri, 08/29/2014 - 14:32
The type and number of connections in transcription factor networks (TFNs) have been studied to evaluate the role assortativity plays on robustness. The study found that the assortativity signature contributes to a network’s resilience against mutations. Transcription factors (TFs) are proteins that initiate and regulate the expression of a gene. To achieve their genetic mission, TFs also regulate one another’s expression.

Breakthrough in light sources for new quantum technology

Fri, 08/29/2014 - 12:42
One of the most promising technologies for future quantum circuits are photonic circuits, i.e. circuits based on light (photons) instead of electrons (electronic circuits). First, it is necessary to create a stream of single photons and control their direction. Researchers have now succeeded in creating a steady stream of photons emitted one at a time and in a particular direction.

Cellphone addiction harming academic performance is 'an increasingly realistic possibility'

Thu, 08/28/2014 - 22:47
Women college students spend an average of 10 hours a day on their cellphones, with men college students spending nearly eight hours, according to a study on cellphone activity. "As cellphone functions increase, addictions to this seemingly indispensable piece of technology become an increasingly realistic possibility," researchers noted.

Socially-assistive robots help kids with autism learn by providing personalized prompts

Thu, 08/28/2014 - 21:00
Children with autism spectrum disorders showed improved or maintained performance in learning imitative behavior by interacting with humanoid robots that provided graded cueing, an occupational therapy technique that shapes behavior by providing increasingly specific cues to help a person learn new skills.

A new, tunable device for spintronics

Thu, 08/28/2014 - 17:53
An international team of scientists has developed a tunable spin-charge converter made of GaAs. Spin-charge converters are important devices in spintronics, an electronic which is not only based on the charge of electrons but also on their spin and the spin-related magnetism. Spin-charge converters enable the transformation of electric into magnetic signals and vice versa.

Computer games give a boost to English

Thu, 08/28/2014 - 17:53
If you want to make a mark in the world of computer games you had better have a good English vocabulary. It has now also been scientifically demonstrated that someone who is good at computer games has a larger English vocabulary.

New tool aids stem cell engineering for medical research

Thu, 08/28/2014 - 17:52
An online analytic tool that will speed up and enhance the process of re-engineering cells for biomedical investigation has been developed by researchers. CellNet is a free-use Internet platform that uses network biology methods to aid stem cell engineering.

Together, humans and computers can figure out plant world

Thu, 08/28/2014 - 15:53
Recent research applying bioinformatics and biometrics to the study of plant form and function is presented in a special issue of a journal. The methods presented in the issue include automated classification and identification, a new online pollen database with semantic search capabilities, geometric morphometrics, and skeleton networks, and present a picture of a renaissance in morphometric approaches that capitalize on recent technological advances.

Doing more with less: New technique uses fraction of measurements to efficiently find quantum wave functions

Thu, 08/28/2014 - 15:01
Just two years ago, with the advent of a technique called direct measurement, scientists discovered they could reliably determine a system’s wave function by “weakly” measuring one of its variables (e.g. position) and “strongly” measuring a complementary variable (momentum). Researchers have now taken this method one step forward by combining direct measurement with an efficient computational technique.

Avatars make the Internet sign to deaf people

Thu, 08/28/2014 - 13:12
It is challenging for deaf people to learn a sound-based language, since they are physically not able to hear those sounds. Hence, most of them struggle with written language as well as with text reading and comprehension. Therefore, most website content remains inaccessible for them. Computer scientists want to change the situation by means of a method they developed: animated online characters display content in sign language. In the long term, deaf people would be able to use the technique to communicate on online platforms via sign language.

Spot light on tailor-made multicyclic type of polymers

Thu, 08/28/2014 - 01:37
Scientists have synthesized multicyclic type of polymers for the first time offering insights for tailoring polymer properties as well as the mathematics of complex geometries.

Industrial management: Avoiding alarms

Thu, 08/28/2014 - 01:37
An intelligent system that predicts when alarms might be triggered could greatly improve the management of industrial plants.

Electronics: Magnetic memories on the right track

Thu, 08/28/2014 - 01:37
An investigation into switching characteristics provides new criteria for achieving faster switching of magnetic memories.

More accurate Twitter analysis tools developed

Wed, 08/27/2014 - 17:17
'Trending' topics on Twitter show the quantity of tweets associated with a specific event but trends only show the highest volume keywords and hashtags, and may not give information about the tweets themselves. Now, using data associated with the Super Bowl and World Series, researchers have developed and validated a software program that analyzes event-based tweets and measures the context of tweets rather than just the quantity.

Educated consumers more likely to use potentially unreliable online healthcare information

Wed, 08/27/2014 - 16:26
Consumers are increasingly turning to forums, video-sharing sites, and peer support groups to gather anecdotal health-care information and advice, which may distract them from more reliable and trustworthy sources. New research studies the characteristics of consumers who use the Internet to collect health-care information.

Big data approach identifies Europe's most dangerous human, domestic animal pathogens

Wed, 08/27/2014 - 16:26
The pathogens posing the greatest risk to Europe based upon a proxy for impact have been identified by researchers using a 'big data' approach to scientific research. The top risk for both humans and animals was E.coli and in humans this was followed by two forms of HIV, Hepatitis C and Staphylococcus aureus, a bacteria which causes food poisoning and is increasingly resistant to antibiotics.

New smartphone app can detect newborn jaundice in minutes

Wed, 08/27/2014 - 16:25
Engineers and physicians have developed a smartphone application that checks for jaundice in newborns and can deliver results to parents and pediatricians within minutes. Skin that turns yellow can be a sure sign that a newborn is jaundiced and isn't adequately eliminating the chemical bilirubin. But that discoloration is sometimes hard to see, and severe jaundice left untreated can harm a baby.

Materials other than silicon for next generation electronic devices

Wed, 08/27/2014 - 16:25
Silicon has been the most successful material of the 20th century, with major global industries and even a valley named after it. But silicon may be running out of steam for high performance/low power electronics. As silicon strains against the physical limits of performance, could a material like InGaAs provide enough of an improvement over silicon that it would be worth the expense in new equipment lines and training to make the switch worthwhile?