|Top Technology News -- ScienceDaily
Sun, 20 Aug 2017 03:34:01 EDT
New Bioimaging technique is fast and economical
Fri, 18 Aug 2017 16:24:30 EDT
A new approach to optical imaging makes it possible to quickly and economically monitor multiple molecular interactions in a large area of living tissue -- such as an organ or a small animal; technology that could have applications in medical diagnosis, guided surgery, or pre-clinical drug testing.
Astrophysicist predicts detached, eclipsing white dwarfs to merge into exotic star
Fri, 18 Aug 2017 16:24:21 EDT
Astrophysicists have discovered two detached, eclipsing double white dwarf binaries with orbital periods of 40 and 46 minutes, respectively. White dwarfs are the remnants of Sun-like stars, many of which are found in pairs, or binaries.
Eclipse research: Following in the moon's slipstream to capture high-res sunspot images
Fri, 18 Aug 2017 16:24:15 EDT
While much of the research around the eclipse on Monday will focus on the effects of the Sun's brief, daytime disappearance on Earth and its atmosphere, a group of solar physicists will be leveraging the rare event to capture a better glimpse of the star itself.
Can Twitter aid disaster response? New research examines how
Fri, 18 Aug 2017 12:35:40 EDT
With over 500 million tweets sent every single day, new research is investigating innovative ways to use that data to help communities respond during unexpected catastrophes.
Quick and easy way to shut down instabilities in fusion devices
Fri, 18 Aug 2017 12:35:34 EDT
Scientists have discovered a remarkably simple way to suppress a common instability that can halt fusion reactions and damage the walls of reactors built to create a "star in a jar."
The power of perovskite
Fri, 18 Aug 2017 10:23:25 EDT
Researchers improve perovskite-based technology in the entire energy cycle, from solar cells harnessing power to LED diodes to light the screens of future electronic devices and other lighting applications.
Artificial neural networks decode brain activity during performed and imagined movements
Fri, 18 Aug 2017 10:23:11 EDT
Filtering information for search engines, acting as an opponent during a board game or recognizing images: Artificial intelligence has far outpaced human intelligence in certain tasks. Researchers are showing how ideas from computer science could revolutionize brain research. They illustrate how a self-learning algorithm decodes human brain signals that were measured by an electroencephalogram (EEG).
Lasers used to detect risk of heart attack and stroke
Fri, 18 Aug 2017 09:36:16 EDT
Patients at risk of heart attacks and strokes may be spotted earlier thanks to a diagnosis tool that uses near-infrared light to identify high-risk arterial plaques.
Spoiler alert: Computer simulations provide preview of upcoming eclipse
Fri, 18 Aug 2017 09:21:54 EDT
Scientists have forecast the corona of the sun during the upcoming eclipse. The findings shed light on what the eclipse of the sun might look like Aug. 21 when it will be visible across much of the US, tracing a 70-mile-wide band across 14 states.
Engineering team images tiny quasicrystals as they form
Thu, 17 Aug 2017 16:20:33 EDT
What makes quasicrystals so interesting? Their unusual structure. Now scientists are actively pursuing this relatively new area of study.
Gold nanostars and immunotherapy vaccinate mice against cancer
Thu, 17 Aug 2017 16:20:23 EDT
By combining an FDA-approved cancer immunotherapy with an emerging tumor-roasting nanotechnology, researchers improved the efficacy of both therapies in a proof-of-concept study using mice. The potent combination also attacked satellite tumors and distant cancerous cells, completely curing two mice and effectively vaccinating one against the disease.
Loans Applications? New techniques to measure social bias in software
Thu, 17 Aug 2017 16:20:19 EDT
Today, banks are increasingly using software to decide who will get a loan, courts to judge who should be denied bail, and hospitals to choose treatments for patients. These uses of software make it critical that the software does not discriminate against groups or individuals, say computer science researchers.
AI implications: Engineer's model lays groundwork for machine-learning device
Thu, 17 Aug 2017 16:20:16 EDT
In what could be a small step for science potentially leading to a breakthrough, an engineer has taken steps toward using nanocrystal networks for artificial intelligence applications.
Non-toxic, lubricant-infused coatings deter mussels and prevent their attachment by disrupting their mechanosensory and adhesive systems
Thu, 17 Aug 2017 14:17:54 EDT
Mussels are one of the worst perpetrators of biofouling, or the unwanted accumulation of organisms on underwater structures. A team of scientists has demonstrated that a lubricant-infused surface effectively prevents mussels from sticking by masking the solid surface with a layer of liquid.
An unusual white dwarf may be a supernova leftover
Thu, 17 Aug 2017 14:17:39 EDT
Astronomers have identified a white dwarf star in our galaxy that may be the leftover remains of a recently discovered type of supernova.
New terahertz imaging approach could speed up skin cancer detection
Thu, 17 Aug 2017 14:17:36 EDT
Researchers have developed a new terahertz imaging approach that, for the first time, can acquire micron-scale resolution images while retaining computational approaches designed to speed up image acquisition.
Discovery could lead to new catalyst design to reduce nitrogen oxides in diesel exhaust
Thu, 17 Aug 2017 14:17:25 EDT
Researchers have discovered a new reaction mechanism that could be used to improve catalyst designs for pollution control systems to further reduce emissions of smog-causing nitrogen oxides in diesel exhaust.
Artificial womb raises hope for premature babies
Thu, 17 Aug 2017 14:17:14 EDT
Researchers hope an artificial womb used to incubate healthy baby lambs can be used in future technology for premature babies.
Older users like to snoop on Facebook, but worried others might snoop on them
Thu, 17 Aug 2017 13:11:19 EDT
Older adults are drawn to Facebook so they can check out pictures and updates from family and friends, but may resist using the site because they are worried about who will see their own content, according to a team of researchers.
Graphene-like materials printed with inkjet printer
Thu, 17 Aug 2017 11:09:07 EDT
Researchers have developed inks made of graphene-like materials for inkjet printing. New black phosphorous inks are compatible with conventional inkjet printing techniques for optoelectronics and photonics. The inkjet printing demonstration makes possible for the first time the scalable mass fabrication of black phosphorous based photonic and optoelectronic devices with long-term stability necessary for a wide range of industrial applications.
Whales turn tail at ocean mining noise
Thu, 17 Aug 2017 11:08:55 EDT
A new international study has measured the effect of loud sounds on migrating humpback whales as concern grows as oceans become noisier. Scientists have said one of the main sources of ocean noise was oil and gas exploration, due to geologists firing off loud acoustic air guns to probe the structure of the ocean floor in search of fossil fuels.
Astrophysicists predict Earth-like planet in star system only 16 light years away
Thu, 17 Aug 2017 11:08:52 EDT
Astrophysicists have predicted that an Earth-like planet may be lurking in a star system just 16 light years away. The team investigated the star system Gliese 832 for additional exoplanets residing between the two currently known alien worlds in this system. Their computations revealed that an additional Earth-like planet with a dynamically stable configuration may be residing at a distance ranging from 0.25 to 2.0 astronomical unit (AU) from the star.
Four Earth-sized planets detected orbiting the nearest sun-like star
Thu, 17 Aug 2017 09:55:49 EDT
Astronomers have discovered four Earth-sized planets orbiting the nearest sun-like star, tau Ceti, which is about 12 light years away and visible to the naked eye. These planets have masses as low as 1.7 Earth mass, making them among the smallest planets ever detected around nearby sun-like stars. Two of them are super-Earths located in the habitable zone of the star, meaning they could support liquid surface water.
Dissolvable, easy-to-use milk capsules for your coffee
Thu, 17 Aug 2017 09:28:10 EDT
Have your coffee without spilling the milk: researchers have developed a milk capsule that dissolves when placed in a hot drink. Not only does this reduce the consumption of packaging material, the capsules are easier to use than conventional plastic containers.
NASA Protects its super heroes from space weather
Thu, 17 Aug 2017 09:27:38 EDT
When astronauts travel in space they can't see or even feel radiation. However, NASA's Human Research Program (HRP) is studying the effects radiation plays on the human body and developing ways to monitor and protect against this silent hazard.
Computer approaches human skill for first time in mapping brain
Thu, 17 Aug 2017 09:27:26 EDT
Scientist, for the first time, have developed a computer algorithm that is nearly as accurate as people are at mapping brain neural networks -- a breakthrough that could speed up the image analysis that researchers use to understand brain circuitry.
Looking to the future of bone replacements
Thu, 17 Aug 2017 09:27:24 EDT
A new artificial bone design has been developed that can be customized and made with a 3-D printer for stronger, safer and more effective bone replacements, explains a new report.
Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene
Wed, 16 Aug 2017 16:26:00 EDT
As graphene's popularity grows as an advanced 'wonder' material, the speed and quality at which it can be manufactured will be paramount. With that in mind, the research group has developed a cleaner and more environmentally friendly method to isolate graphene using carbon dioxide in the form of carbonic acid as the electrolyte solution.
Telemedicine as effective as in-person care for Parkinson's disease
Wed, 16 Aug 2017 16:06:39 EDT
Telemedicine can successfully deliver quality care, new findings from a nationwide program that links neurologists with patients with Parkinson's disease in their homes via video conferencing shows. The study points to a new way to improve care for people who suffer from the disease, but may have not have access to a neurologist.
Comparing the jaws of porcupine fish reveals three new species
Wed, 16 Aug 2017 16:06:15 EDT
Researchers compared fossil porcupine fish jaws and tooth plates collected on expeditions to Panama, Colombia, Venezuela and Brazil with those from museum specimens and modern porcupine fish, revealing three new species.
Lithium-air batteries: Mystery about proposed battery material clarified
Wed, 16 Aug 2017 14:18:35 EDT
A compound called lithium iodide (LiI) has been considered a leading material for lithium-air batteries, which could deliver more energy per pound compared to today's leading batteries. A new study helps explain previous, conflicting findings about the material's usefulness for this task.
Spray-on electric rainbows: Making safer electrochromic inks
Wed, 16 Aug 2017 14:18:32 EDT
A flick of a switch, and electrochromic films change their colors. Now they can be applied more safely and more commonly thanks to an innovative chemical process that makes them water soluble. They can be sprayed and printed, instead of being confined behind safety implements to handle volatile solvents and their toxic fumes.
Boron nitride foam soaks up carbon dioxide
Wed, 16 Aug 2017 14:18:30 EDT
Researchers have created a reusable hexagonal-boron nitride foam that soaks up more than three times its weight in carbon dioxide.
Superconductivity research reveals potential new state of matter
Wed, 16 Aug 2017 13:47:36 EDT
A potential new state of matter is being reported with research showing that among superconducting materials in high magnetic fields, the phenomenon of electronic symmetry breaking is common. The ability to find similarities and differences among classes of materials with phenomena such as this helps researchers establish the essential ingredients that cause novel functionalities such as superconductivity.
Smart fabric neutralizes nerve gas
Wed, 16 Aug 2017 13:47:33 EDT
A groundbreaking development has the potential to thwart chemical warfare agents: smart textiles with the ability to rapidly detect and neutralize nerve gas.
Scientists use magnetic fields to remotely stimulate brain -- and control body movements
Wed, 16 Aug 2017 13:46:58 EDT
Scientists have used magnetism to activate tiny groups of cells in the brain, inducing bodily movements that include running, rotating and losing control of the extremities -- an achievement that could lead to advances in studying and treating neurological disease.
Supermassive black holes feed on cosmic jellyfish
Wed, 16 Aug 2017 13:46:43 EDT
Observations of 'Jellyfish galaxies' with ESO's Very Large Telescope have revealed a previously unknown way to fuel supermassive black holes. It seems the mechanism that produces the tentacles of gas and newborn stars that give these galaxies their nickname also makes it possible for the gas to reach the central regions of the galaxies, feeding the black hole that lurks in each of them and causing it to shine brilliantly.
Computer scientists use music to covertly track body movements, activity
Wed, 16 Aug 2017 13:46:35 EDT
Researchers have demonstrated how it is possible to transform a smart device into a surveillance tool that can collect information about the body position and movements of the user, as well as other people in the device's immediate vicinity.
Making surgery safer by helping doctors see nerves
Wed, 16 Aug 2017 12:24:01 EDT
A new noninvasive approach that uses polarized light to make nerves stand out from other tissue could help surgeons avoid accidentally injuring nerves or assist them in identifying nerves in need of repair.
Tough, self-healing rubber developed
Wed, 16 Aug 2017 12:23:42 EDT
Imagine a tire that could heal after being punctured or a rubber band that never snapped. Researchers have developed a new type of rubber that is as tough as natural rubber but can also self-heal.
Mars 2020 mission to use smart methods to seek signs of past life
Wed, 16 Aug 2017 11:27:15 EDT
NASA's Mars 2020 mission, which will look for signs of past life on Mars, will use smart methods originally developed to find the oldest life on Earth, according the mission's Deputy Project Scientist. The 2020 mission will make coordinated measurements that could detect signs of ancient life - or biosignatures - in their original spatial context. These techniques, known as 'spatially resolved biosignature analysis' derive from geochemical analysis of early life on Earth.
Gold shines through properties of nano biosensors
Wed, 16 Aug 2017 11:27:09 EDT
With their remarkable electrical and optical properties, along with biocompatibility, photostability and chemical stability, gold nanoclusters are gaining a foothold in a number of research areas, particularly in biosensing and biolabeling. An international research team has now shown that the fluorescence is an intrinsic property of the gold nanoparticles themselves. The researchers used Au20, gold nanoparticles with a tetrahedral structure.
Study: Playing smartphone app aids concussion recovery in teens
Wed, 16 Aug 2017 11:01:33 EDT
Generally, after suffering a concussion, patients are encouraged to avoid reading, watching TV and using mobile devices to help their brains heal. But new research shows that teenagers who used a mobile health app once a day in conjunction with medical care improved concussion symptoms and optimism more than with standard medical treatment alone.
Multicolor MRIs could aid disease detection
Wed, 16 Aug 2017 11:01:24 EDT
Researchers have developed a method that could make magnetic resonance imaging -- MRI -- multicolor. Current MRI techniques rely on a single contrast agent injected into a patient's veins to vivify images. The new method uses two at once, which could allow doctors to map multiple characteristics of a patient's internal organs in a single MRI. The strategy could serve as a research tool and even aid disease diagnosis.
Radioactive 129I waste used to track ocean currents for 15,000 km after discharge from nuclear plants
Wed, 16 Aug 2017 10:03:23 EDT
Radioactive 129I has traveled the equivalent of a third of the way round the globe, since being released from nuclear fuel reprocessing plants in the UK and France. The iodine's 15,000 km journey begins in the nuclear plants at Sellafield and La Hague and continues via the Arctic Ocean and then southward via the Grand Banks towards Bermuda, where it is found at very low concentrations about 20 years later.
NASA, ESA spacecraft track solar storm through space
Wed, 16 Aug 2017 10:03:18 EDT
Using seven spacecraft, along with computer models, scientists have pieced together the journey of a coronal mass ejection from the Sun outward to Mars, Comet 67P, Jupiter and even the New Horizons spacecraft now beyond Pluto.
Trying to resist the urge to splurge? Ditch the smartphone
Wed, 16 Aug 2017 10:02:40 EDT
You are more likely to indulge in guilty pleasures when shopping online with a touchscreen versus a desktop computer, according to research.
Smart electrical grids more vulnerable to cyber attacks
Wed, 16 Aug 2017 10:02:30 EDT
Electricity distribution systems in the USA are gradually being modernized and transposed to smart grids, which make use of two-way communication and computer processing. This is making them increasingly vulnerable to cyber attacks.
Candy cane supercapacitor could enable fast charging of mobile phones
Wed, 16 Aug 2017 10:02:26 EDT
Supercapacitors promise recharging of phones and other devices in seconds and minutes as opposed to hours for batteries. But current technologies are not usually flexible, have insufficient capacities, and for many their performance quickly degrades with charging cycles. Researchers have found a way to improve all three problems in one stroke.
Going 'green' with plant-based resins
Wed, 16 Aug 2017 10:02:11 EDT
Airplanes, electronics and solar cells are all in demand, but the materials holding these items together -- epoxy thermosets -- are not environmentally friendly. Now, a group reports that they have created a plant-based thermoset that could make devices 'greener.'
Antifreeze to improve airplanes, ice cream and organ transplants
Wed, 16 Aug 2017 08:59:37 EDT
The design of airplane wings and storing organs for transplant could both become safer and more effective, thanks to a synthetic antifreeze which prevents the growth of ice crystals.
How friction evolves during an earthquake
Wed, 16 Aug 2017 08:49:35 EDT
Using high-speed photography and digital image correlation techniques, engineers show that friction along a faultline has a complex evolution during an earthquake that is dictated, in part, by slip velocity: the sliding of the two sides of the fault against one another.
Supervolcanoes: A key to America's electric future?
Wed, 16 Aug 2017 08:49:29 EDT
Researchers show that lake sediments preserved within ancient supervolcanoes can host large lithium-rich clay deposits. A domestic source of lithium would help meet the rising demand for this valuable metal, which is critical for modern technology.
Drug-delivering micromotors treat their first bacterial infection in the stomach
Wed, 16 Aug 2017 08:49:18 EDT
Nanoengineers have demonstrated, for the first time, using micromotors to treat a bacterial infection in the stomach. These tiny vehicles, each about half the width of a human hair, swim rapidly throughout the stomach while neutralizing gastric acid and then release their cargo of antibiotics at the desired pH.
Print no evil: Three-layer technique helps secure additive manufacturing
Wed, 16 Aug 2017 08:49:10 EDT
Researchers have developed a three-layer system to verify that components produced using additive manufacturing have not been compromised by malicious activity or quality issues.
Cassini says goodbye to a true Titan
Tue, 15 Aug 2017 15:02:05 EDT
Mere weeks away from its dramatic, mission-ending plunge into Saturn, NASA's Cassini spacecraft has a hectic schedule, orbiting the planet every week in its Grand Finale. On a few orbits, Saturn's largest moon, Titan, has been near enough to tweak Cassini's orbit, causing the spacecraft to approach Saturn a bit closer or a bit farther away. A couple of those distant passes even pushed Cassini into the inner fringes of Saturn's rings.
Cosmic magnifying lens reveals inner jets of black holes
Tue, 15 Aug 2017 13:38:49 EDT
Jet material ejected from a black hole is magnified in new observations from Caltech's Owens Valley Radio Observatory. This discovery provides the best view yet of blobs of hot gas that shoot out from supermassive black holes.
Detecting a concealed weapon or threat is not easy, even for experienced police officers
Tue, 15 Aug 2017 12:14:53 EDT
Terrorist attacks and bombings at concerts, sporting events and airports underscore the need for accurate and reliable threat detection. However, the likelihood of a police officer identifying someone concealing a gun or bomb is only slightly better than chance, according to new research.
High-quality online video with less rebuffering
Tue, 15 Aug 2017 12:05:39 EDT
In experiments, Pensieve could stream video with 10 to 30 percent less rebuffering than other approaches, and at levels that users rated 10 to 25 percent higher on key 'quality of experience' metrics.
New thruster design increases efficiency for future spaceflight
Tue, 15 Aug 2017 12:05:08 EDT
Hall thrusters are used in earth-orbiting satellites and show promise to propel robotic spacecraft long distances, and the plasma ejected from the exhaust end of the thruster can deliver great speeds. Cylindrical Hall thrusters lend themselves to miniaturization and have a smaller surface-to-volume ratio that prevents erosion of the thruster channel.