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Updated: 47 min 51 sec ago

Researchers can trace dust samples using fungal DNA

Wed, 04/15/2015 - 15:40
Researchers have developed a statistical model that allows them to tell where a dust sample came from within the continental United States based on the DNA of fungi found in the sample. The work offers a new forensic biology tool for law enforcement and archaeologists.

New mathematical method enhances hydrology simulations

Wed, 04/15/2015 - 14:29
A team applied sophisticated mathematical solutions to fine tune water and energy exchange parameters, numerical stand-ins for complex processes, to more accurately simulate water and energy fluxes in an important model under different conditions.

Quantum cryptography at the speed of light: Researchers design first all-photonic repeaters

Wed, 04/15/2015 - 13:28
Engineers bring perfectly secure information exchanges one step to reality. They have now designed the first all-photonic quantum repeaters -- protocols that ensure data can be carried reliably and securely across longer distances when using quantum cryptography.

Method for printing write-once-read-many (WORM) memories developed

Wed, 04/15/2015 - 13:13
A method for printing memory circuits directly, e.g. onto consumer packaging, has been developed by researchers. Because the required production technology is quite simple, no major investments are required, they say. The write-once-read-many (WORM) memories can be fabricated directly on the product or packaging using flexographic or inkjet printing machines, common in the packaging industry.

Are health apps beneficial for healthy people?

Wed, 04/15/2015 - 01:24
Health apps have the potential to make a broad impact on the health of the general population, argues one expert. But another explains that there is not enough evidence to support such claims and suggests that health apps may even be harmful.

Facebook use can worsen, as well as improve, mental health conditions

Wed, 04/15/2015 - 01:24
Facebook can help people recover from mental health problems but it needs to be used cautiously and strategically as it can also make symptoms worse, new research shows.

New DNA dataset is potent, accessible tool

Tue, 04/14/2015 - 20:07
Scientists focused on producing biofuels more efficiently have a new powerful dataset to help them study the DNA of microbes that fuel bioconversion and other processes.

Interactivity tools can boost persuasiveness of websites

Tue, 04/14/2015 - 17:04
Messages conveyed on websites may be more persuasive if theses websites are interactive, according to researchers.

Violent video games not linked to aggression in adults with autism

Tue, 04/14/2015 - 17:04
Following the 2012 shooting in Newtown, Connecticut, some in the media and the public speculated a link existed between autism spectrum disorder and violence and, in particular, that violent video games may cause gamers with autism to act violently. Now, a study has found evidence to contradict this speculation. It is the first study to test the effects of violent video games on aggression in adults with autism spectrum disorder.

Increase seen in data breaches of health information

Tue, 04/14/2015 - 16:58
Between 2010 and 2013, data breaches of protected health information reported by HIPAA-covered entities increased and involved approximately 29 million records, with most data breaches resulting from overt criminal activity, according to a study.

UV light robot to clean hospital rooms could help stop spread of ‘superbugs’

Tue, 04/14/2015 - 16:57
Can a robot clean a hospital room just as well as a person? A researcher is studying the effectiveness of a germ-zapping robot to clean hospital rooms, which could hold the key to preventing the spread of "superbugs" -- in turn, saving lives.

Ecological properties of nature reserve areas can now be analyzed by laser scanning from a plane

Tue, 04/14/2015 - 14:09
Monitoring Europe's vast nature protection areas used to be extremely difficult. Thanks to new computer algorithms this can now be done using aircraft and laser technology.

Personalized computer feedback can mitigate problem gambling behaviors

Tue, 04/14/2015 - 13:41
More than 1.6 million college-aged adults meet the criteria for problem gambling. This can lead to difficulties at work, school or home, and with relationships, personal finances, and mental and physical health. Counseling for problem gamblers can be expensive and time consuming; a new study has found that college-aged adults who were diagnosed as problem gamblers significantly changed their behaviors after receiving personalized feedback from computers.

Quantum Hall effect: Quantization of 'surface Dirac states' could lead to exotic applications

Tue, 04/14/2015 - 12:53
Researchers have uncovered the first evidence of an unusual quantum phenomenon -- the integer quantum Hall effect -- in a new type of film, called a 3-D topological insulator. This discovery could help move science forward toward the goal of dissipationless electronics -- electronic devices that can operate without producing the vast amounts of heat generated by current silicon-based semiconductors.

Ebola analysis finds virus hasn't become deadlier, yet

Tue, 04/14/2015 - 01:31
Research using cutting edge computer analysis reveals that despite mutating, Ebola hasn't evolved to become deadlier since the first outbreak 40 years ago. The surprising results demonstrate that whilst a high number of genetic changes have been recorded in the virus, it hasn't changed at a functional level to become more or less virulent.

Smartphone-based device could provide rapid, low-cost molecular tumor diagnosis

Mon, 04/13/2015 - 20:15
A new device may bring rapid, accurate molecular diagnosis of tumors and other diseases to locations lacking the latest medical technology. The devise is a smartphone-based device that uses the kind of technology used to make holograms to collect detailed microscopic images for digital analysis of the molecular composition of cells and tissues.

On the road to spin-orbitronics: New way to manipulate magnetic domain walls

Mon, 04/13/2015 - 20:13
Researchers have discovered a new way of manipulating the magnetic domain walls in ultrathin magnets that could one day revolutionize the electronics industry through a technology called “spin-orbitronics.”

Network 'hubs' in brain attract information, much like airport system

Mon, 04/13/2015 - 18:08
"Hubs" in the brain -- highly connected regions that like hubs of the airport system -- act as critical destinations where information is received and integrated, scientists report. "Understanding how information transfer occurs in the brain is critical, especially if network hubs are taken off line by anesthesia, tumor or stroke," says the senior study author.

Putting clinicians in charge of computer-based decision support

Mon, 04/13/2015 - 17:08
Rule Authoring and Validation Environment, a powerful new distributed approach to clinician decision support rule authoring 'personalized' to patient population, location and time, has been developed by clinician-researchers and tested at Eskenazi Health, one of the nation's largest safety net hospital systems.

Shape changing display could spell the end for the 2-D graph

Mon, 04/13/2015 - 17:05
Imagine your computer screen could change shape. Imagine if that screen could spring to life at the touch of a fingertip, translating numbers and trends into shapes and gradients you can reach out and touch.