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Technology News

Wearable device measures cortisol in sweat
Posted on Friday July 20, 2018

By drawing in a bit of sweat, a patch can reveal how much cortisol a person is producing. Cortisol is known as the stress hormone but is involved in many important physiological functions.

Parakeet pecking orders, basketball match-ups, and the tenure-track
Posted on Friday July 20, 2018

Researchers describe a new algorithm called SpringRank that uses wins and losses to quickly find rankings lurking in large networks. When tested on a wide range of synthetic and real-world datasets, ranging from teams in an NCAA college basketball tournament to the social behavior of animals, SpringRank outperformed other ranking algorithms in predicting outcomes and in efficiency.

Eagle-eyed machine learning algorithm outdoes human experts
Posted on Friday July 20, 2018

Researchers have trained computers to quickly and consistently detect and analyze microscopic radiation damage to materials under consideration for nuclear reactors. And the computers bested humans in this arduous task.

How to weigh stars with gravitational lensing
Posted on Friday July 20, 2018

Astronomers have published the predictions of the passages of foreground stars in front of background stars. A team of astronomers, using ultra-precise measurements from the Gaia satellite, have accurately forecast two passages in the next months. Each event will produce shifts in the background star's position due to the deflection of light by gravity, and will allow the measurement of the mass of the foreground star, which is extremely difficult to determine by other means.

Speed up solving complex problems: Be lazy and only work crucial tasks
Posted on Friday July 20, 2018

A new improvement to a programming technique called 'lazy grounding' could solve hard-set and complex issues in freight logistics, routing and power grids by drastically reducing computation times.

World's fastest human-made spinning object could help study quantum mechanics
Posted on Friday July 20, 2018

Researchers have created the fastest human-made spinning object in the world, which they believe will help them study material science, quantum mechanics and the properties of vacuum.

New material: Two faces offer limitless possibilities
Posted on Friday July 20, 2018

Named for the mythical god with two faces, Janus membranes -- double-sided membranes that serve as gatekeepers between two substances -- have emerged as a material with potential industrial uses.

New study shows certain video games can improve health in children with obesity
Posted on Friday July 20, 2018

A new study showed for the first time that video games, in combination with fitness coaching and a step tracker, helped overweight children lose weight, lower their blood pressure and cholesterol and increase their physical activity.

Protecting autonomous grids from potentially crippling GPS spoofing attacks
Posted on Thursday July 19, 2018

Not long ago, getting a virus was about the worst thing computer users could expect in terms of system vulnerability. But in our current age of hyper-connectedness and the emerging Internet of Things, that's no longer the case. With connectivity, a new principle has emerged, one of universal concern to those who work in the area of systems control. That law says, essentially, that the more complex and connected a system is, the more susceptible it is to disruptive cyber-attacks.

New solar sailing technology for NASA
Posted on Thursday July 19, 2018

Researchers is taking solar sailing to the next level with advanced photonic materials. This new class of materials could be used to steer reflected or transmitted photons and enable near-Earth, interplanetary and interstellar space travel.

Traveling to the sun: Why won't Parker Solar Probe melt?
Posted on Thursday July 19, 2018

This summer, NASA's Parker Solar Probe will launch to travel closer to the Sun, deeper into the solar atmosphere, than any mission before it. Cutting-edge technology and engineering will help it beat the heat.

Physics treasure hidden in a wallpaper pattern
Posted on Thursday July 19, 2018

An international team of scientists has discovered a new, exotic form of insulating material with a metallic surface that could enable more efficient electronics or even quantum computing. The researchers developed a new method for analyzing existing chemical compounds that relies on the mathematical properties like symmetry that govern the repeating patterns seen in everyday wallpaper.

Relaxor ferroelectrics: Relax, just break it
Posted on Thursday July 19, 2018

Scientists are helping to answer long-held questions about a technologically important class of materials called relaxor ferroelectrics.

New battery could store wind and solar electricity affordably and at room temperature
Posted on Thursday July 19, 2018

A new type of flow battery that involves a liquid metal more than doubled the maximum voltage of conventional flow batteries and could lead to affordable storage of renewable power.

Mobile phone radiation may affect memory performance in adolescents, study finds
Posted on Thursday July 19, 2018

Radiofrequency electromagnetic fields may have adverse effects on the development of memory performance of specific brain regions exposed during mobile phone use, suggests a recent study involving nearly 700 adolescents in Switzerland.

Targeting headaches and tumors with nano-submarines
Posted on Thursday July 19, 2018

Scientists have developed a new method to enable miniature drug-filled nanocarriers to dock on to immune cells, which in turn attack tumors.

Deepwater Horizon oil spill: Oil biodegradation inhibited in deep-sea sediments
Posted on Thursday July 19, 2018

Degradation rates of oil were slower in the dark and cold waters of the depths of the Gulf of Mexico than at surface conditions, according to an international team of geoscientists trying to understand where the oil went during the Deepwater Horizon oil spill.

Scientists use satellites to measure vital underground water resources
Posted on Thursday July 19, 2018

With the hope of providing water resource managers with better tools to help keep aquifers healthy, a team of scientists are using the latest space technology to look underneath Earth's surface to measure this precious natural resource.

Moving closer to completely optical artificial neural network
Posted on Thursday July 19, 2018

Researchers have shown that it is possible to train artificial neural networks directly on an optical chip.

Methods to quantify the yips and golfer's cramp
Posted on Thursday July 19, 2018

Almost every golfer knows the feeling. Minutes after a picture-perfect drive down the fairway, a cascade of inexplicable missed putts leads to a disappointing triple bogey.

 



 

 

 

 


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