|Top Technology News -- ScienceDaily
Sat, 22 Sep 2018 22:43:02 EDT
Spray-on antennas could unlock potential of smart, connected technology
Fri, 21 Sep 2018 15:14:38 EDT
Engineering researchers report a method for spraying invisibly thin antennas, made from a type of two-dimensional, metallic material called MXene, that perform as well as those being used in mobile devices, wireless routers and portable transducers.
Emissions from most diesel cars in Europe greatly exceed laboratory testing levels
Fri, 21 Sep 2018 14:01:51 EDT
A new study reports that Volkswagen is not the only auto manufacturer to make diesel cars that produce vastly more emissions on the road than in laboratory tests. The study finds that in Europe, 10 major auto manufacturers produced diesel cars, sold between 2000 and 2015, that generate up to 16 times more emissions on the road than in regulatory tests.
Neutrons produce first direct 3-D maps of water during cell membrane fusion
Thu, 20 Sep 2018 17:52:02 EDT
New 3-D maps of water distribution during cellular membrane fusion are accelerating scientific understanding of cell development, which could lead to new treatments for diseases associated with cell fusion.
To improve auto coatings, new tests do more than scratch the surface
Thu, 20 Sep 2018 17:52:00 EDT
Data from new suite of tests could eventually help your vehicle's exterior better defend itself against dings, dents, scratches and things that go bump on the highway.
Synthetic organelle shows how tiny puddle-organs in our cells work
Thu, 20 Sep 2018 17:51:57 EDT
Imagine your liver being just a big puddle. Some organelles in your cells are exactly that including prominent ones like the nucleolus. Now a synthetic organelle engineered in a lab shows how such puddle organs can carry out complex life-sustaining reaction chains.
TINY cancer detection device proves effective in Uganda testing
Thu, 20 Sep 2018 16:10:59 EDT
About half the size of a lunch box, the Tiny Isothermal Nucleic acid quantification sYstem (or TINY) has shown promise as a point-of-care detector of Kaposi sarcoma-associated herpesvirus (KSHV) in resource-limited settings such as sub-Saharan Africa.
Smart pills dumb down medical care, experts warn
Thu, 20 Sep 2018 16:10:54 EDT
Enthusiasm for an emerging digital health tool, the smart pill, is on the rise but researchers caution health care providers and policymakers to slow down when it comes to allowing this technology in patient care settings.
Plug-and-play technology automates chemical synthesis
Thu, 20 Sep 2018 16:09:57 EDT
Researchers have developed an automated chemical synthesis machine that can take over many tedious aspects of chemical experimentation, freeing chemists to spend time on the more analytical and creative aspects of their work.
Major breakthrough in controlling the 3D structure of molecules
Thu, 20 Sep 2018 16:09:21 EDT
Scientists have made a major breakthrough in chemical synthesis that now makes it possible to quickly and reliably modify the 3D structure of molecules used in drug discovery. The new method allows scientists to employ cross-coupling reactions to generate new compounds while controlling their 3D architecture.
Astrophysicists measure precise rotation pattern of sun-like stars for the first time
Thu, 20 Sep 2018 16:09:10 EDT
Scientists have measured the differential rotation on Sun-like stars for the first time, and their findings challenge current science on how stars rotate.
Reducing false positives in credit card fraud detection
Thu, 20 Sep 2018 13:15:13 EDT
Consumers' credit cards are declined surprisingly often in legitimate transactions. One cause is that fraud-detecting technologies used by a consumer's bank have incorrectly flagged the sale as suspicious. Now researchers have employed a new machine-learning technique to drastically reduce these false positives, saving banks money and easing customer frustration.
Matter falling into a black hole at 30 percent of the speed of light
Thu, 20 Sep 2018 11:55:37 EDT
Astronomers report the first detection of matter falling into a black hole at 30% of the speed of light, located in the center of the billion-light year distant galaxy PG211+143. The team used data from the European Space Agency's X-ray observatory XMM-Newton to observe the black hole.
Nerve cells in the human brain can 'count'
Thu, 20 Sep 2018 11:55:26 EDT
How do we know if we're looking at three apples or four? Researchers were able to demonstrate that some brain cells fire mainly for quantities of three, others for quantities of four and others for other quantities. A similar effect can be observed for digits: In humans, the neurons activated in response to a '2' are for instance not the same as the neurons activated for a '5'.
Researchers patent technology for smart seat cushion, adaptable prosthetics
Thu, 20 Sep 2018 11:55:23 EDT
Researchers have patented a smart seat cushion that uses changes in air pressure to redistribute body weight and help prevent the painful ulcers caused by sitting for long periods of time in a wheelchair. The same technology can be used to create prosthetic liners that adapt their shape to accommodate changes in body volume.
Mathematics meets biology to uncover unexpected biorhythms
Thu, 20 Sep 2018 11:55:21 EDT
A novel mathematical approach has uncovered that some animal cells have robust 12-hour cycles of genetic activity, in addition to circadian or 24-hour cycles.
Widely used nonprofit efficiency tool doesn't work
Thu, 20 Sep 2018 10:22:01 EDT
A recent study finds that the tool most often used to assess the efficiency of nonprofit organizations isn't just inaccurate -- it is negatively correlated with efficiency.
Simulations of every woman's breast tissue address delay on enhanced MRI cancer detection
Thu, 20 Sep 2018 10:21:59 EDT
Researchers have simulated how over 20 different breast tissue ratios respond to heat given off by MRIs at higher field strengths than available in hospitals today.
Glacial engineering could limit sea-level rise, if we get our emissions under control
Thu, 20 Sep 2018 10:21:38 EDT
Targeted engineering projects to hold off glacier melting could slow down ice-sheet collapse and limit sea-level rise, according to a new study. While an intervention similar in size to existing large civil engineering projects could only have a 30 percent chance of success, a larger project would have better odds of holding off ice-sheet collapse. But the researchers caution that reducing emissions still remains key to stopping climate change and its dramatic effects.
Simpler and safer method for handling a useful but foul-smelling gas in chemical synthesis
Thu, 20 Sep 2018 10:21:12 EDT
Researchers have developed both an ingenious, as well as a safe procedure for using the 'rotten egg' smelling and flammable gas, methanethiol, in certain chemical reactions.
Hidden costs of cobalt mining in DR Congo
Thu, 20 Sep 2018 10:21:07 EDT
Cobalt mining comes at a great cost to public health in the Democratic Republic of the Congo. New research reveals that children are particularly vulnerable: their urine and blood samples contain high concentrations of cobalt and other metals.
Physicists train robotic gliders to soar like birds
Thu, 20 Sep 2018 10:16:05 EDT
Scientists know that upward currents of warm air assist birds in flight. To understand how birds find and navigate these thermal plumes, researchers used reinforcement learning to train gliders to autonomously navigate atmospheric thermals. The research highlights the role of vertical wind accelerations and roll-wise torques as viable biological cues for soaring birds. The findings also provide a navigational strategy that directly applies to the development of UAVs.
Super cheap earth element to advance new battery tech to the industry
Wed, 19 Sep 2018 15:41:46 EDT
Worldwide efforts to make sodium-ion batteries just as functional as lithium-ion batteries have long since controlled sodium's tendency to explode, but not yet resolved how to prevent sodium-ions from 'getting lost' during the first few times a battery charges and discharges. Now, researchers made a sodium powder version that fixes this problem and holds a charge properly.
'Robotic Skins' turn everyday objects into robots
Wed, 19 Sep 2018 14:49:18 EDT
When you think of robotics, you likely think of something rigid, heavy, and built for a specific purpose. New 'Robotic Skins' technology flips that notion on its head, allowing users to animate the inanimate and turn everyday objects into robots.
Quantum anomaly: Breaking a classical symmetry with ultracold atoms
Wed, 19 Sep 2018 13:39:15 EDT
A new study of ultracold atomic gases finds a quantum anomaly: strongly interacting particles breaking classical symmetry in a 2-D Fermi gas.
Can video game exercises help chronic low back pain?
Wed, 19 Sep 2018 13:39:00 EDT
Home-based video-game exercises can reduce chronic low back pain in older people by 27 percent, which is comparable to benefits gained under programs supervised by a physiotherapist, new research has found.
Commercially relevant bismuth-based thin film processing
Wed, 19 Sep 2018 13:36:23 EDT
Researchers prepared 2D layered, visible-light-absorbing bismuth sulfide semiconductors using a two-step process. The resulting film exhibited morphology that supported excellent semiconductor performance. The simplicity and versatility of the processing method, which uses non-toxic, abundant materials, makes bismuth sulfide a viable alternative to commercially available photoresponsive devices.
Lighting it up: A new non-toxic, cheap, and stable blue photoluminescent material
Wed, 19 Sep 2018 13:33:17 EDT
Scientists have designed a novel photoluminescent material that is cheap to fabricate, does not use toxic starting materials, and is very stable, enhancing our understanding of the quantic nature of photoluminescence.
How long does a quantum jump take?
Wed, 19 Sep 2018 13:33:04 EDT
Quantum jumps are usually regarded to be instantaneous. However, new measurement methods are so precise that it has now become possible to observe such a process and to measure its duration precisely -- for example the famous 'photoelectric effect', first described by Albert Einstein.
Gaia hints at our Galaxy’s turbulent life
Wed, 19 Sep 2018 13:30:35 EDT
Our Milky Way galaxy is still enduring the effects of a near collision that set millions of stars moving like ripples on a pond, the Gaia star mapping mission has shown.
New nanoparticle superstructures made from pyramid-shaped building blocks
Wed, 19 Sep 2018 13:30:32 EDT
In research that may help bridge the divide between the nano and the macro, chemists have used pyramid-shaped nanoparticles to create what might be the most complex macroscale superstructure ever assembled.
Diverse forests are stronger against drought
Wed, 19 Sep 2018 13:30:28 EDT
Researchers report that forests with trees that employ a high diversity of traits related to water use suffer less of an impact from drought. The results, which expand on previous work that looked at individual tree species' resilience based on hydraulic traits, lead to new research directions on forest resilience and inform forest managers working to rebuild forests after logging or wildfire.
Microbubble scrubber destroys dangerous biofilms
Wed, 19 Sep 2018 13:30:15 EDT
Stiff microbial films often coat medical devices, household items and infrastructure such as the inside of water supply pipes, and can lead to dangerous infections. Researchers have developed a system that harnesses the power of bubbles to propel tiny particles through the surfaces of these tough films and deliver an antiseptic deathblow to the microbes living inside.
Engineers develop first method for controlling nanomotors
Wed, 19 Sep 2018 11:59:07 EDT
Engineers have developed the world's first method for controlling the motion of nanomotors with simple visible light as the stimulus.
Fiber optic sensor measures tiny magnetic fields
Wed, 19 Sep 2018 11:59:04 EDT
Researchers have developed a light-based technique for measuring very weak magnetic fields, such as those produced when neurons fire in the brain.
New insights into the way the brain combines memories to solve problems
Wed, 19 Sep 2018 11:15:27 EDT
Current theories do not easily explain how people can use their episodic memories to arrive at novel insights. New research provides a window into the way the human brain connects individual episodic memories to solve problems.
'Hoppy' beer without exploding bottles and too much alcohol
Wed, 19 Sep 2018 11:15:04 EDT
'Dry-hopping' beer enhances flavor but sometimes has undesirable side effects, such as an unexpectedly high alcohol content and high pressures. Now, new research explains the biochemical basis of these unintended consequences, which could help brewers create better 'hoppy' beverages.
What your cell phone camera tells you about your brain
Wed, 19 Sep 2018 11:15:02 EDT
Your brain is structured to make the best possible decision given its limited resources, according to new research that unites cognitive science and information theory -- the branch of mathematics that underlies modern communications technology.
Origami inspires highly efficient solar steam generator
Wed, 19 Sep 2018 11:14:59 EDT
Water covers most of the globe, yet many regions still suffer from a lack of clean drinking water. If scientists could efficiently and sustainably turn seawater into clean water, a looming global water crisis might be averted. Now, inspired by origami, the Japanese art of paper folding, researchers have devised a solar steam generator that approaches 100 percent efficiency for the production of clean water.
Multi-directional activity control of cellular processes as a new tool
Wed, 19 Sep 2018 10:10:19 EDT
The spatial and temporal dynamics of proteins or organelles plays a crucial role in controlling various cellular processes and in development of diseases. Yet, acute control of activity at distinct locations within a cell cannot be achieved. Scientists now present a new chemo-optogenetic method that enables tunable, reversible, and rapid control of activity at multiple subcellular compartments within a living cell.
Light provides spin
Wed, 19 Sep 2018 10:10:06 EDT
Physicists have proven that incoming light causes the electrons in warm perovskites to rotate thus influencing the direction of the flow of electrical current. They have thus found the key to an important characteristic of these crystals, which could play an important role in the development of new solar cells.
Looking back in time to watch for a different kind of black hole
Wed, 19 Sep 2018 10:10:01 EDT
A simulation has suggested what astronomers should look for if they search the skies for a direct collapse black hole in its early stages.
New micro-platform reveals cancer cells' natural behavior
Wed, 19 Sep 2018 10:09:52 EDT
A new cell culture platform allows researchers to observe never-before-seen behaviors of live cancer cells under the microscope, leading to explanations of long-known cancer characteristics.
College students have unequal access to reliable technology, study finds
Wed, 19 Sep 2018 10:09:50 EDT
Smartphones and laptops seem ubiquitous at US universities, but there is still a 'digital divide,' with some students less likely than others to have consistent access to reliable technology, according to a new study.
Two quantum dots are better than one: Using one dot to sense changes in another
Wed, 19 Sep 2018 10:09:44 EDT
Researchers developed the first device that can detect single-electron events in a self-assembled quantum dot in real time. The device detects the single-electron tunneling events of one quantum dot as changes in the current produced by a second quantum dot in close proximity. This device allows single-electron events in quantum dots to be investigated, which is beneficial for the development of photonic devices and quantum computing.
Wave-particle interactions allow collision-free energy transfer in space plasma
Wed, 19 Sep 2018 10:08:57 EDT
A team finds evidence of collisionless energy transfer occurring in the plasma of Earth's magnetosphere.
Nucleation a boon to sustainable nanomanufacturing
Wed, 19 Sep 2018 08:35:05 EDT
Scientists have measured the activation energy and kinetic factors of calcium carbonate's nucleation.
Searching for new bridge forms that can span further
Wed, 19 Sep 2018 08:34:40 EDT
Newly identified bridge forms could enable significantly longer bridge spans to be achieved in the future, potentially making a crossing over the Strait of Gibraltar, from the Iberian Peninsula to Morocco, feasible. The new bridge forms -- identified by a team of researchers from the University of Sheffield and Brunel University London, working with long span bridge expert Ian Firth of engineering consultants COWI -- use a new mathematical modelling technique to identify optimal forms for very long-span bridges.
Creating 3-D-printed 'motion sculptures' from 2-D videos
Wed, 19 Sep 2018 08:33:29 EDT
A new system uses an algorithm that can take 2-D videos and turn them into 3-D printed 'motion sculptures' that show how a human body moves through space.
First particle tracks seen in prototype for international neutrino experiment
Tue, 18 Sep 2018 18:05:07 EDT
The largest liquid-argon neutrino detector in the world has just recorded its first particle tracks, signaling the start of a new chapter in the story of the international Deep Underground Neutrino Experiment (DUNE).
AI improves doctors' ability to correctly interpret tests and diagnose lung disease
Tue, 18 Sep 2018 18:05:01 EDT
Artificial intelligence (AI) can be an invaluable aid to help lung doctors interpret respiratory symptoms accurately and make a correct diagnosis, according to new research.
How slick water and black shale in fracking combine to produce radioactive waste
Tue, 18 Sep 2018 15:48:31 EDT
Study explains how radioactive radium transfers to wastewater in the widely-used method to extract oil and gas.
Cash, carbon, crude: How to make oil fields bury emissions
Tue, 18 Sep 2018 15:48:14 EDT
A new analysis looks at what it would take for oil companies to start pumping millions of tons of carbon dioxide into their wells to boost crude production -- and what it would mean for the climate.
Machine-learning system tackles speech and object recognition, all at once
Tue, 18 Sep 2018 14:08:37 EDT
Computer scientists have developed a system that learns to identify objects within an image, based on a spoken description of the image. Given an image and an audio caption, the model will highlight in real-time the relevant regions of the image being described.
Capitalizing on sleep-wake cycle can drastically increase digital ad profits from social media
Tue, 18 Sep 2018 13:17:11 EDT
New research shows digital content platforms can increase traffic to their websites from social media and boost digital ad profits by at least 8 percent, simply by aligning their posting schedules with target audiences' sleep-wake cycles.
Searching for errors in the quantum world
Tue, 18 Sep 2018 11:44:38 EDT
The theory of quantum mechanics is well supported by experiments. Now, however, a thought experiment by physicists yields unexpected contradictions. These findings raise some fundamental questions -- and they're polarising experts.
Electrochemistry: Greater than the sum of its parts
Tue, 18 Sep 2018 11:09:58 EDT
Scientists have developed a new model that merges basic electrochemical theory with theories used in different contexts, such as the study of photoelectrochemistry and semiconductor physics, to describe phenomena that occur in any electrode.
Chemists create circular fluorescent dyes for biological imaging
Tue, 18 Sep 2018 11:09:42 EDT
Chemists have created a new class of fluorescent dyes that function in water and emit colors based solely on the diameter of circular nanotubes made of carbon and hydrogen.
Transparent loudspeakers and MICs that let your skin play music
Tue, 18 Sep 2018 11:09:39 EDT
An international team of researchers has presented an innovative wearable technology that will turn your skin into a loudspeaker.
Is email evil? Bosses are getting boxed in by their inbox
Tue, 18 Sep 2018 11:09:31 EDT
New research shows that bosses struggle, like the rest of us, to keep up with email demands. What makes managers unique is that email traffic prevents them from being effective leaders and threatens employee performance.
Engineered E. coli using formic acid and CO2 as a C1-refinery platform strain
Tue, 18 Sep 2018 11:09:25 EDT
A research group has developed an engineered E. coli strain that converts formic acid and CO2 to pyruvate and produces cellular energy from formic acid through reconstructed one-carbon pathways. The strategy described in this study provides a new platform for producing value-added chemicals from one-carbon sources.