Top Technology News -- ScienceDaily
Mon, 29 May 2017 10:54:02 EDT

New method improves stability of perovskite quantum dots

Mon, 29 May 2017 09:04:29 EDT
Scientists have built a new type of inorganic nanocomposite that makes perovskite quantum dot exceptionally stable against air exposure, sunlight, heat, and water.
Novel method to study quantum fluctuations in exotic phases of matter

Mon, 29 May 2017 09:00:04 EDT
We encounter phase transitions in our everyday lives when we witness water freezing or boiling. Similarly, quantum systems at a temperature of absolute zero also experience phase transitions. The pressure or magnetic field applied to such systems can be adjusted so that these systems arrive at a tipping point between two phases. At this point quantum fluctuations, rather than temperature fluctuations, drive these transitions.
Mind-controlled device helps stroke patients retrain brains to move paralyzed hands

Fri, 26 May 2017 16:59:07 EDT
Stroke patients who learned to use their minds to open and close a plastic brace fitted over their paralyzed hands gained some ability to control their own hands when they were not wearing the brace, according to a new study. The participants, all of whom had moderate to severe paralysis, showed significant improvement in grasping objects.
Where rivers meet the sea: Harnessing energy generated when freshwater meets saltwater

Fri, 26 May 2017 14:40:34 EDT
A new hybrid technology has been created that produces unprecedented amounts of electrical power where seawater and freshwater combine at the coast.
Conch shells may inspire better helmets, body armor

Fri, 26 May 2017 14:37:13 EDT
Engineers have uncovered the secret to the exceptional toughness of conch shells, and say the same principles can be used for body armor and helmets.
'Tiny clocks' crystallize understanding of meteorite crashes

Fri, 26 May 2017 14:37:10 EDT
Scientists are using new imaging techniques to measure the atomic nanostructure of ancient crystal fragments at meteorite impact sites. The end goal? To understand when impacts ended and life began.
Scientists make vanadium into a useful catalyst for hydrogenation

Fri, 26 May 2017 08:50:01 EDT
A chemist has boosted and analyzed the unprecedented catalytic activity of an element called vanadium for hydrogenation – a reaction that is used for making everything from vegetable oils to petrochemical products to vitamins.
Atomic-scale imaging improves dating of planetary events

Fri, 26 May 2017 08:49:21 EDT
A new way to improve how we measure the age of planetary evolution in our solar system has been identified by a team of researchers.
Toward mass-producible quantum computers

Fri, 26 May 2017 08:45:21 EDT
Mass-producible quantum computers are closer than ever, thanks to new research. This process for positioning quantum bits in diamond optical circuits could work at large scales, say scientists.
Fruit flies journey to International Space Station to study effects of zero gravity on the heart

Thu, 25 May 2017 19:55:36 EDT
Researchers have announced that six boxes of fruit flies (Drosophila melanogaster) will travel to the International Space Station (ISS) to study the impact of weightlessness on the heart. The fruit flies are scheduled to launch on June 1, 2017, from NASA’s Kennedy Space Center and will travel to the ISS via a SpaceX Dragon spacecraft.
Chemists synthesize molecular pretzels

Thu, 25 May 2017 19:55:06 EDT
Chemists have discovered a new class of molecules. In a new article, they outline pretzel-like molecules consisting of two molecular rings 'oppositely' coupled at a central carbon atom. The discovery is an important step towards synthesis of lasso peptides, and the new molecules have a potential use as medicines, say investigators.
The 'ideal' teacher? It's all in your mind

Thu, 25 May 2017 16:13:38 EDT
A study leverages the unvarnished opinions of Redditors to further our understanding of what makes a good educator.
'Drastically' higher resolution to your TV and smartphone

Thu, 25 May 2017 14:58:51 EDT
By developing a way to tune the color of individual pixels, researchers have eliminated the need for subpixels -- allowing a greater density of pixels and much higher resolution for video displays.
Extreme Jupiter weather and magnetic fields

Thu, 25 May 2017 14:58:44 EDT
New observations about the extreme conditions of Jupiter's weather and magnetic fields by astronomers have contributed to the revelations and insights coming from the first close passes of Jupiter by NASA's Juno mission.
Multiscale modeling reveals key events during early atherosclerotic plaque development

Thu, 25 May 2017 14:16:13 EDT
A new computational modeling technique could indicate when atherosclerotic plaques will likely undergo rapid growth, reports a new study.
US nuclear regulators greatly underestimate potential for nuclear disaster

Thu, 25 May 2017 14:15:44 EDT
The US Nuclear Regulatory Commission relied on faulty analysis to justify its refusal to adopt a critical measure for protecting Americans from nuclear-waste fires at dozens of reactor sites around the country, according to a recent article. Radioactivity from such a fire could force approximately 8 million people to relocate and result in $2 trillion in damages.
Magnetic switch turns strange quantum property on and off

Thu, 25 May 2017 14:15:41 EDT
A research team has developed the first switch that turns on and off a quantum behavior called the Berry phase. The discovery promises to provide new insight into the fundamentals of quantum theory and may lead to new quantum electronic devices.
Juno mission to Jupiter delivers first science results

Thu, 25 May 2017 14:15:38 EDT
NASA's Juno mission is rewriting what scientists thought they knew about Jupiter specifically, and gas giants in general, according to a pair of Science papers released today. The Juno spacecraft has been in orbit around Jupiter since July 2016, passing within 3,000 miles of the equatorial cloudtops.
The big star that couldn't become a supernova

Thu, 25 May 2017 14:15:32 EDT
For the first time in history, astronomers have been able to watch as a dying star was reborn as a black hole. It went out with a whimper instead of a bang.
Water forms 'spine of hydration' around DNA, group finds

Thu, 25 May 2017 14:15:30 EDT
How water relates to and interacts with biological systems -- like DNA, the building block of all living things -- is of critical importance, and a research group has used a relatively new form of spectroscopy to observe a previously unknown characteristic of water.
Concrete for taller wind turbine towers passes tests, could help expand wind energy nationwide

Thu, 25 May 2017 13:12:45 EDT
An 18-month, $1 million study of concrete technology for taller wind turbine towers has just wrapped up, with results indicating that the taller towers could enable wind energy production in all 50 states.
Solving the riddle of the snow globe

Thu, 25 May 2017 10:38:13 EDT
A new study finds the sedimentation of asymmetric objects in liquid is very different from that of symmetrical objects like spheres. The research may have practical applications in improving water treatment and industrial processes.
Unveiling the quantum necklace

Thu, 25 May 2017 10:03:11 EDT
The quantum world is both elegant and mysterious. It is a sphere of existence where the laws of physics experienced in everyday life are broken -- particles can exist in two places at once, they can react to each other over vast distances, and they themselves seem confused over whether they are particles or waves. For those not involved in the field, this world may seem trifling, but recently, researchers have theoretically described two quantum states that are extraordinary in both the physics that define them and their visual appeal: a complex quantum system that simulates classical physics and a spellbinding necklace-like state.
Controlling 3-D behavior of biological cells using laser holographic techniques

Thu, 25 May 2017 10:03:07 EDT
Scientists have developed an optical manipulation technique that can freely control the position, orientation, and shape of microscopic samples having complex shapes.
New way to control light with electric fields

Thu, 25 May 2017 10:02:59 EDT
Researchers have discovered a technique for controlling light with electric fields.
Sheets of food transform into 3-D shapes when dunked in water

Thu, 25 May 2017 10:02:33 EDT
Researchers have concocted something akin to edible origami, in the form of flat sheets of gelatin and starch that, when submerged in water, instantly sprout into three-dimensional structures, including common pasta shapes such as macaroni and rotini.
Study uncovers large-scale volatility index (VIX) manipulation

Thu, 25 May 2017 08:54:45 EDT
Newly examined aggregate evidence points to large-scale potential manipulation of the CBOE’s Volatility Index (VIX), according to a study.
Scientists borrow from electronics to build circuits in living cells

Thu, 25 May 2017 08:51:23 EDT
Synthetic biology researchers have demonstrated a new method for digital information processing in living cells, analogous to the logic gates used in electric circuits. The circuits are the largest ever published to date in eurkaryotic cells and a key step in harnessing the potential of cells as living computers that can respond to disease, efficiently produce biofuels or develop plant-based chemicals.
High pressure key to lighter, stronger metal alloys, scientists find

Thu, 25 May 2017 08:51:20 EDT
Subjecting complex metal mixtures called high-entropy alloys to extremely high pressures could lead to finer control over the arrangement of their atoms, which in turn can result in more desirable properties.
Fighting forgery with paper fingerprints

Wed, 24 May 2017 19:16:12 EDT
A cyber team has found a simple new way to prevent forgery of official documents such as certificates and passports. Fingerprinting official documents could provide a cost-effective way to prevent forgery, they say.
From blue and black dresses to turbine blades, here's the science of 'fake fake' photographs

Wed, 24 May 2017 19:16:09 EDT
A new study reveals the science behind a 'trick of the light' that made high-profile photographs of a major piece of public art appear 'faked' despite the pictures being entirely genuine. Vision science researchers found images of the 75-meter long wind turbine appeared super-imposed because of a visual illusion caused by light reflections playing on preconceived notions about how objects are lit in natural settings, altering the object's shape to the human eye.
Patients in rural hospitals can save thousands of dollars if local hospital is part of tele-emergency room network

Wed, 24 May 2017 16:26:21 EDT
Patients in small towns can save thousands of dollars in health care costs by avoiding transfer to a larger facility if their local rural hospital is part of a tele-emergency room network, according to a new study.
Printed, flexible and rechargeable battery can power wearable sensors

Wed, 24 May 2017 15:26:44 EDT
Nanoengineers have developed the first printed battery that is flexible, stretchable and rechargeable. The zinc batteries could be used to power everything from wearable sensors to solar cells and other kinds of electronics.
New online database has answers on mitochondrial disorders

Wed, 24 May 2017 15:26:31 EDT
Providing answers - or at least more information - to the most difficult medical questions is the aim of medical scientists. And how research findings are translated and made available can be as important as the discoveries themselves.
New brain mapping tool produces higher resolution data during brain surgery

Wed, 24 May 2017 15:26:20 EDT
Researchers have developed a new device to map the brain during surgery and distinguish between healthy and diseased tissues. The device provides higher resolution neural readings than existing tools used in the clinic and could enable doctors to perform safer, more precise brain surgeries.
Nanoalloys ten times as effective as pure platinum in fuel cells

Wed, 24 May 2017 14:07:31 EDT
A new type of nanocatalyst can result in the long-awaited commercial breakthrough for fuel cell cars. Research results show that it is possible to significantly reduce the need for platinum, a precious and rare metal, by creating a nanoalloy using a new production technique. The technology is also well suited for mass production.
Shedding light on how humans walk, with robots

Wed, 24 May 2017 14:07:19 EDT
Patients walking in clinical robotic suits do not modify their gait in response to forces that are meant to alter the height of their steps, though they do respond to alterations in step length, providing insight into how the human brain executes walking and improving rehabilitative robot design, researchers have discovered.
New modified toy car designs offer children with disabilities more options

Wed, 24 May 2017 14:07:13 EDT
Researchers have developed two new modified toy car designs for children with disabilities in an effort to encourage them to further explore, play, and engage in physical and social activities.
Your mobile phone can reveal whether you have been exposed to radiation

Wed, 24 May 2017 14:03:24 EDT
In accidents or terror attacks which are suspected to involve radioactive substances, it can be difficult to determine whether people nearby have been exposed to radiation. But by analysing mobile phones and other objects which come in close contact with the body, it is possible to retrieve important information on radiation exposure.
Just after the Big Bang: Galaxies created stars a hundred times faster now

Wed, 24 May 2017 13:11:49 EDT
A team of astronomers has discovered a new kind of galaxy which, although extremely old -- formed less than a billion years after the Big Bang -- creates stars more than a hundred times faster than our own Milky Way.
System piggybacks on Bitcoin to prevent identity theft

Wed, 24 May 2017 13:11:31 EDT
Researchers have developed a new system that uses Bitcoin's security machinery to defend against online identity theft.
Paper test strip could help heart failure patients monitor their condition at home

Wed, 24 May 2017 11:00:21 EDT
Contrary to the condition's name, heart failure doesn't mean the heart has stopped pumping -- it's just not working at full strength. It can often be managed with medications and lifestyle changes, but its progression needs to be monitored closely. Now scientists have developed a new test strip that could potentially allow patients to do this at home for the first time.
Neutrons provide the first nanoscale look at a living cell membrane

Wed, 24 May 2017 11:00:14 EDT
A research team has performed the first-ever direct nanoscale examination of a living cell membrane. In doing so, it also resolved a long-standing debate by identifying tiny groupings of lipid molecules that are likely key to the cell's functioning.
How most antimatter in the Milky Way forms: Mystery solved

Wed, 24 May 2017 10:45:51 EDT
Astrophysicists have now shown how most of the antimatter in the Milky Way forms.
Volunteers help find star that exploded 970 million years ago, predating the dinosaurs

Wed, 24 May 2017 10:15:22 EDT
Online volunteers have helped astronomers find a star that exploded 970 million years ago, predating the dinosaurs' time on Earth.
One-dimensional crystals for low-temperature thermoelectric cooling

Wed, 24 May 2017 10:15:16 EDT
Researchers studied the thermal and electrical properties of one-dimensional crystals composed of tantalum, silicon and tellurium for thermoelectric cooling at temperatures below 250 K (-23°C). The thermoelectric characteristics of these crystals were varied at temperatures ranging from the cryogenic level of 50 K up to room temperature by doping with molybdenum and antimony. The crystals' thermoelectric power factors greatly exceeded those of conventional materials around room temperature, indicating their suitability for low-temperature applications.
Measured for the first time: Direction of light waves changed by quantum effect

Wed, 24 May 2017 10:15:10 EDT
Certain materials can be used to rotate the direction in which the light is oscillating. This is known as a 'magneto-optical' effect. One variant of this type of effect has now been demonstrated for the first time. Rather than switching the direction of the light wave continually, special materials called 'topological insulators' do so in quantum steps. This could give us a new method to measure fundamental constants of nature.
Can parents' tech obsessions contribute to a child's bad behavior?

Wed, 24 May 2017 10:15:01 EDT
About half of parents reported that technology interrupted time with their children three or more times on a typical day. Even in low amounts, interruptions to parent-child time caused by digital technology are associated with greater child behavior problems, a new study suggests.
Precise insight into the depths of cells

Wed, 24 May 2017 10:14:58 EDT
Is it possible to watch at the level of single cells how fish embryos become trout, carp or salmon? Researchers have successfully combined two very advanced fluorescence microscopy techniques. The new high-resolution light microscope permits fascinating insights into a cell's interior.
Three-dimensional graphene: Experiment at BESSY II shows that optical properties are tuneable

Wed, 24 May 2017 10:14:56 EDT
An international research team has for the first time investigated the optical properties of three-dimensional nanoporous graphene at the IRIS infrared beamline of the BESSY II electron storage ring. The experiments show that the plasmonic excitations (oscillations of the charge density) in this new material can be precisely controlled by the pore size and by introducing atomic impurities. This could facilitate the manufacture of highly sensitive chemical sensors.
Mathematical modeling can identify ways to limit aggressive tumor cell growth

Wed, 24 May 2017 10:06:20 EDT
Mathematical models can be used to predict how different tumor cell populations interact with each other and respond to a changing environment, research suggests.
Machine learning may help in early identification of severe sepsis

Wed, 24 May 2017 10:06:16 EDT
A machine-learning algorithm has the capability to identify hospitalized patients at risk for severe sepsis and septic shock using data from electronic health records (EHRs), according to a new study. Sepsis is an extreme systemic response to infection, which can be life-threatening in its advanced stages of severe sepsis and septic shock, if left untreated.
Physicists discover mechanism behind granular capillary effect

Wed, 24 May 2017 08:55:26 EDT
Dipping a tube into a container filled with water will make the water rise in the tube. This phenomenon is called liquid capillarity. It is responsible for many natural and technical processes, for example the water absorption of trees, ink rising in a fountain pen, and sponges absorbing dishwater. But what happens if the tube is dipped into a container filled not with water but with sand? The answer is – nothing.
Natural gas facilities with no carbon dioxide emissions

Wed, 24 May 2017 08:46:48 EDT
How can we burn natural gas without releasing carbon dioxide (CO2) into the air? This feat is achieved using a special combustion method: chemical looping combustion (CLC). In this process, CO2 can be isolated during combustion without having to use any additional energy, which means it can then go on to be stored. This prevents it from being released into the atmosphere.
Biggest ever simulations help uncover the history of the galaxy

Wed, 24 May 2017 08:46:06 EDT
Thousands of processors, terabytes of data, and months of computing time have helped a group of researchers in Germany create some of the largest and highest resolution simulations ever made of galaxies like our Milky Way.
Fuel from the air technology provides a path to new business for OPEC countries

Wed, 24 May 2017 08:46:04 EDT
Pioneering technology makes OPEC countries prime regions to produce synthetic fuels. This could be a key asset in phasing out fossil fuels after the Paris Agreement, while also keeping some of the existing oil industry value chain intact.
Palm-size device for quick, effective treatment of common hearing disorder

Wed, 24 May 2017 08:46:00 EDT
A novel handheld device, known as CLiKX, has been developed for the treatment of a condition called Otitis Media with Effusion (OME), or ‘glue ear’, which is the leading cause of hearing loss and visits to the doctors among children worldwide. The invention, which is sensor-guided and easy to use, could significantly improve current surgical treatment of the condition.
Switching to off-peak delivery times reduced city congestion

Wed, 24 May 2017 08:45:09 EDT
In some businesses – like supermarkets and restaurants – local restrictions on nighttime deliveries leave distributors no choice but to dispatch trucks during morning rush hours. But lifting these rules could reduce peak traffic volumes and increase transport efficiency, according to a recent study.
Nanoalloys ten times as effective as pure platinum in fuel cells

Wed, 24 May 2017 08:45:07 EDT
A new type of nanocatalyst can result in the long-awaited commercial breakthrough for fuel cell cars. Research results show that it is possible to significantly reduce the need for platinum, a precious and rare metal, by creating a nanoalloy using a new production technique. The technology is also well suited for mass production.
Feather-light metal cathodes for stable lithium-oxygen batteries

Wed, 24 May 2017 08:44:11 EDT
Lithium-oxygen systems could someday outperform today's lithium-ion batteries because of their potential for high energy density. However, a number of important issues, such as their poor electrochemical stability must be addressed before these systems can successfully compete with current rechargeable batteries. Now, researchers report a new type of cathode, which could make lithium-oxygen batteries a practical option.