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Updated: 37 min 33 sec ago

The importance of influencers on social media

Thu, 08/10/2017 - 14:48
Tracking the Twitter updates of a random sample of 300,000 active users over the course of a month reveals that this particular corner of social media and social networking is not quite as equitable and democratic as popular perception might have us believe. Indeed, the research reveals that there is a two-step flow of information through which a minority of users accounts for the majority of influence.

Drone tech offers new ways to manage climate change

Thu, 08/10/2017 - 12:24
An innovation providing key clues to how humans might manage forests and cities to cool the planet is taking flight. Researchers are using drone technology to more accurately measure surface reflectivity on the landscape, a technological advance that could offer a new way to manage climate change.

New analysis casts doubt on predicted decrease in Oklahoma earthquakes

Wed, 08/09/2017 - 19:18
Wastewater injection rates in Oklahoma have declined recently because of regulatory actions and market forces, but seismologists say that has not yet significantly reduced the risk of potentially damaging earthquakes.

Artificial intelligence uses internet searches to help create mind association magic trick

Wed, 08/09/2017 - 19:14
Scientists have created an artificial intelligence (AI) that uses internet searches to help co-design a word association magic trick.

Updated computer code improves prediction of particle motion in plasma experiments

Wed, 08/09/2017 - 18:01
A computer code used by physicists around the world to analyze and predict tokamak experiments can now approximate the behavior of highly energetic atomic nuclei, or ions, in fusion plasmas more accurately than ever.

When you're blue, so are your Instagram photos

Wed, 08/09/2017 - 12:32
Instagram photos can be examined by a computer to successfully detect depressed people, new research shows. The computer results are more reliable (70 percent) than the diagnostic success rate (42 percent) of general-practice doctors. The approach promises a new method for early screening of mental health problems through social media.

When robots help with shopping

Wed, 08/09/2017 - 11:37
Today, the desired book, toy or household appliance can be purchased by a click only -- thanks to online mail order business and smart logistics. The bottleneck in logistics, however, is the high-bay store, where many picking and detection processes cannot yet be executed automatically by robots. At the Amazon Robotics Challenge in Nagoya, Japan, a team has demonstrated how future warehousing may work.

'Robin Hood effects' on motivation in math

Wed, 08/09/2017 - 11:36
Students from families with little interest in math benefit more from a school intervention program that aims at increasing math motivation than do students whose parents regard math as important. A study indicates the intervention program has a "Robin Hood effect" which reduces the "motivational gap" between students from different family backgrounds because new information about the importance of math is made accessible to underprivileged students.

The mystery of the yellowing sugarcane

Tue, 08/08/2017 - 22:23
Since 2011, a mysterious illness known as Yellow Canopy Syndrome (YCS) has afflicted Australian sugarcane causing $40 million in losses. Researchers used supercomputers to perform large-scale investigations of the sugarcane genome. They detected signals in the data that could indicate a bacteria or stress causing YCS. They are conducting further computational studies to test their hypotheses.

No longer water under the bridge, statistics yields new data on sea levels

Tue, 08/08/2017 - 18:59
While the scientific community has long warned about rising sea levels and their destructive impact on some of the United States' most populous cities, researchers have developed a new, statistical method that more precisely calculates the rate of sea level rise, showing it's not only increasing, but accelerating.

Playing with your brain: Negative impact of some action video games

Tue, 08/08/2017 - 18:55
Human-computer interactions, such as playing video games, can have a negative impact on the brain, says a new Canadian study. For over 10 years, scientists have told us that action video game players exhibit better visual attention, motor control abilities and short-term memory. But, could these benefits come at a cost?

Machine learning could be key to producing stronger, less corrosive metals

Tue, 08/08/2017 - 18:55
Researchers have studied grain boundaries for decades and gained some insight into the types of properties grain boundaries produce, but no one has been able to nail down a universal system to predict if a certain configuration of atoms at grain boundaries will make a material stronger or more pliable. An interdisciplinary team of researchers have cracked the code by juicing a computer with an algorithm that allows it to learn the elusive 'why' behind the boundaries' qualities.

New technique to suppress sound waves from disorder to improve optical fiber communication

Mon, 08/07/2017 - 20:44
New research has revealed a new technique by which scattering of sound waves from disorder in a material can be suppressed on demand. All of this, can be simply achieved by illuminating with the appropriate color of laser light. The result could have a wide-ranging impact on sensors and communication systems.

Big data yields surprising connections between diseases

Mon, 08/07/2017 - 16:08
Using health insurance claims data from more than 480,000 people in nearly 130,000 families, researchers at the University of Chicago have created a new classification of common diseases based on how often they occur among genetically-related individuals.

IBM's Watson can improve cancer treatment through better gene targeting

Mon, 08/07/2017 - 15:04
IBM's Watson beat real-life contestants on Jeopardy. Now researchers are hoping this icon of artificial intelligence will help people with cancer win as well by providing a rapid, comprehensive report of the genetic mutations at the root of their specific disease and the therapies that target them.

'Origami organs' can potentially regenerate tissues

Mon, 08/07/2017 - 13:18
Scientists and engineers have invented a range of bioactive 'tissue papers' made of materials derived from organs that are thin and flexible enough to even fold into an origami bird. The new biomaterials can potentially be used to support natural hormone production in young cancer patients and aid wound healing.

Nanocrystalline LEDs: Red, green, yellow, blue …

Mon, 08/07/2017 - 12:23
The color of the light emitted by an LED can be tuned by altering the size of their semiconductor crystals. Researchers have now found a clever and economical way of doing just that, which lends itself to industrial-scale production.

Microbot origami can capture, transport single cells

Mon, 08/07/2017 - 01:26
Researchers have developed a way to assemble and pre-program tiny structures made from microscopic cubes -- 'microbot origami' -- to change their shape when actuated by a magnetic field and then, using the magnetic energy from their environment, perform a variety of tasks -- including capturing and transporting single cells.

New biosensor stimulates sweat even when patient is resting and cool

Sat, 08/05/2017 - 18:24
One big drawback to biosensors that measure sweat is you have to sweat. But researchers have come up with a new biosensor that can stimulate perspiration for days on just a tiny patch of skin.

Mathematical crystal ball gazes into future of prostate cancer treatment

Sat, 08/05/2017 - 18:23
Using open data from four previously conducted clinical trials, teams of international researchers designed mathematical models predicting the likelihood that a patient will discontinue docetaxel treatment due to adverse events.