|Top Technology News -- ScienceDaily
Wed, 14 Nov 2018 17:03:02 EST
Massive impact crater from a kilometer-wide iron meteorite discovered in Greenland
Wed, 14 Nov 2018 16:00:42 EST
An international team has discovered a 31-km wide meteorite impact crater buried beneath the ice-sheet in the northern Greenland. This is the first time that a crater of any size has been found under one of Earth's continental ice sheets.
Cold Super-Earth found orbiting closest single star to Sun
Wed, 14 Nov 2018 13:20:40 EST
The nearest single star to the Sun hosts an exoplanet at least 3.2 times as massive as Earth -- a so-called super-Earth. One of the largest observing campaigns to date using data from a world-wide array of telescopes has revealed this frozen, dimly lit world. The newly discovered planet is the second-closest known exoplanet to the Earth. Barnard's star is the fastest moving star in the night sky.
Gravitational waves from a merged hyper-massive neutron star
Wed, 14 Nov 2018 10:44:08 EST
For the first time astronomers have detected gravitational waves from a merged, hyper-massive neutron star.
Nanotubes built from protein crystals: Breakthrough in biomolecular engineering
Wed, 14 Nov 2018 10:40:35 EST
Researchers at Tokyo Tech have succeeded in constructing protein nanotubes from tiny scaffolds made by cross-linking of engineered protein crystals. The achievement could accelerate the development of artificial enzymes, nano-sized carriers and delivery systems for a host of biomedical and biotechnological applications.
Optimization of alloy materials: Diffusion processes in nano particles decoded
Tue, 13 Nov 2018 15:51:56 EST
A research team discovers atomic-level processes which can provide new approaches to improving material properties.
Carbon emissions will start to dictate stock prices
Tue, 13 Nov 2018 14:42:31 EST
Companies that fail to curb their carbon output may eventually face the consequences of asset devaluation and stock price depreciation, according to a new study.
Scientists shed light on semiconductor degradation mechanism
Tue, 13 Nov 2018 11:54:46 EST
SiC-based electrical devices degrading will be improved by controlling the semiconductor material deformation with atomic level.
'Waltzing' nanoparticles could advance search for better drug delivery methods
Tue, 13 Nov 2018 11:54:27 EST
Scientists paired drug-delivering nanoparticles like dance partners to reveal that molecules attach to targets on cells differently based upon their position in time. The discovery could improve methods for screening drugs for therapeutic effectiveness.
New finding of particle physics may help to explain the absence of antimatter
Tue, 13 Nov 2018 11:04:08 EST
With the help of computer simulations, particle physics researchers may be able to explain why there is more matter than antimatter in the Universe. The simulations offer a new way of examining conditions after the Big Bang, and could provide answers to some fundamental questions in particle physics.
Moths and magnets could save lives
Tue, 13 Nov 2018 11:03:59 EST
Bioengineers have combined a virus that infects moths with magnetic nanoparticles to create a potential new therapy for inherited genetic diseases like muscular dystrophy, sickle cell, cystic fibrosis, spinal muscular atrophy and some forms of cancer.
Stealth-cap technology for light-emitting nanoparticles
Tue, 13 Nov 2018 11:03:47 EST
Scientists have succeeded in significantly increasing the stability and biocompatibility of special light-transducing nanoparticles. They have developed so-called ''upconverting'' nanoparticles that not only convert infrared light into UV-visible light, but also are water-soluble, remain stable in complex body fluids, and can be used to store medications. They have created a tool that could potentially make the fight against cancer more effective.
New scheduling system could help reduce flight delays
Tue, 13 Nov 2018 11:03:44 EST
Scheduling and coordinating air traffic can be difficult, but taking the airlines' and passengers' delay costs into account can actually save airlines money and result in fewer delays, according to a new study.
Detecting light in a 'different dimension'
Tue, 13 Nov 2018 11:03:41 EST
Scientists have dramatically improved the response of graphene to light through self-assembling wire-like nanostructures that conduct electricity.
Solution in fight against fake graphene
Tue, 13 Nov 2018 11:03:32 EST
A new study has uncovered a major problem - a lack of graphene production standards has led to many cases of poor quality products from suppliers. Such practices can impede the progress of research that depend fundamentally on the use of high-quality graphene.
Doubly-excited electrons reach new energy states
Tue, 13 Nov 2018 11:03:27 EST
Scientists have now characterized the higher energy levels reached by electrons in resonance in three-particle systems, which are too complex to be described using simple equations. This theoretical model is intended to offer guidance for experimentalists interested in observing these resonant structures in positronium ions.
Tailoring the surface of carbon may hold the key to monitoring patient blood in real-time
Tue, 13 Nov 2018 11:03:24 EST
Machine learning is increasing the pace of development of customised carbon surfaces with a wide variety of applications.
Microorganisms help production
Tue, 13 Nov 2018 11:03:19 EST
Oil is still the most economically attractive resource for fuels and basic chemicals that can be used to manufacture everyday products such as plastic bottles and detergent. New biotechnological processes aim to simplify the use of renewable biomass as an alternative to the fossil raw material and make it more cost-effective.
Purple bacteria 'batteries' turn sewage into clean energy
Tue, 13 Nov 2018 08:09:03 EST
Purple phototrophic bacteria -- which can store energy from light -- when supplied with an electric current can recover near to 100 percent of carbon from any type of organic waste, while generating hydrogen gas for use as fuel.
Study opens route to ultra-low-power microchips
Mon, 12 Nov 2018 19:18:58 EST
Researchers have developed a new way of controlling magnetism in materials, which could lead to new low-power technologies for memory, computing, and sensing devices.
New framework pushes the limits of high-performance computing
Mon, 12 Nov 2018 19:17:23 EST
Researchers found a way to give high-performance computing data systems the flexibility to thrive with a first-of-its-kind framework called BespoKV, perhaps helping to one day achieve the HPC goal of performing at the exascale, or a billion billion calculations per second.
Half moons and pinch points: Same physics, different energy
Mon, 12 Nov 2018 13:16:38 EST
For the first time, physicists present a unified theory explaining two characteristic features of frustrated magnets and why they're often seen together.
Ultra-thin transparent silver films for solar cells
Mon, 12 Nov 2018 13:16:26 EST
A new fabrication process for transparent ultra-thin silver films has been developed. The material may help build highly efficient solar cells and light-emitting diodes. However, traditional chemical methods have not been able to produce ultra-thin and pure silver films.
New records in perovskite-silicon tandem solar cells through improved light management
Mon, 12 Nov 2018 13:16:21 EST
Using microstructured layers, a team has been able to increase the efficiency of perovskite-silicon tandem solar cells, achieving 25.5 %, which is the highest published value to date. At the same time, computational simulations were utilized to investigate light conversion in various device designs with different nanostructured surfaces. This enabled optimization of light management and detailed energy yield analyses.
AI capable of outlining in a single chart information from thousands of scientific papers
Mon, 12 Nov 2018 09:59:48 EST
Scientists have developed a Computer-Aided Material Design (CAMaD) system capable of extracting information related to fabrication processes and material structures and properties -- factors vital to material design -- and organizing and visualizing the relationship between them. The use of this system enables information from thousands of scientific and technical articles to be summarized in a single chart, rationalizing and expediting material design.
A two-atom quantum duet
Fri, 09 Nov 2018 15:01:27 EST
Researchers have achieved a major breakthrough in shielding the quantum properties of single atoms on a surface. The scientists used the magnetism of single atoms, known as spin, as a basic building block for quantum information processing. The researchers could show that by packing two atoms closely together they could protect their fragile quantum properties much better than for just one atom.
Graphene on the way to superconductivity
Fri, 09 Nov 2018 15:01:24 EST
Scientists have found evidence that double layers of graphene have a property that may let them conduct current completely without resistance. They probed the band structure at BESSY II with extremely high resolution ARPES and could identify a flat area at a surprising location.
New flexible, transparent, wearable biopatch, improves cellular observation, drug delivery
Fri, 09 Nov 2018 15:01:21 EST
Researchers have developed a new flexible and translucent base for silicon nanoneedle patches to deliver exact doses of biomolecules directly into cells and expand observational opportunities.
Making wind farms more efficient
Fri, 09 Nov 2018 12:26:23 EST
With energy demands rising, researchers have completed an algorithm -- or approach -- to design more efficient wind farms, helping to generate more revenue for builders and more renewable energy for their customers.
Innovative experimental scheme can create tailor-made mirror molecules
Fri, 09 Nov 2018 11:27:07 EST
Exploring the mystery of the molecular handedness in nature, scientists have proposed a new experimental scheme to create custom-made mirror molecules for analysis. The technique can make ordinary molecules spin so fast that they lose their normal symmetry and shape and instead form mirrored versions of each other.
Cellphone technology developed to detect HIV
Fri, 09 Nov 2018 11:26:42 EST
Investigators have designed a portable and affordable mobile diagnostic tool, utilizing a cellphone and nanotechnology, with the ability to detect HIV viruses and monitor its management in resource-limited regions.
Tiny pacemakers aim to make infant heart surgeries less invasive, while cutting operating costs and time
Fri, 09 Nov 2018 10:15:00 EST
A prototype for a miniature pacemaker, about the size of an almond, aims to make pacemaker procedures for infants less invasive, less painful, and more efficient, measured by shorter surgeries, faster recovery times and reduced medical costs.
Big data used to predict the future
Fri, 09 Nov 2018 10:14:44 EST
Technology is taking giant leaps and bounds, and with it, the information with which society operates daily. Nevertheless, the volume of data needs to be organized, analyzed and crossed to predict certain patterns. This is one of the main functions of what is known as 'Big Data', the 21st century crystal ball capable of predicting the response to a specific medical treatment, the workings of a smart building and even the behavior of the Sun based on certain variables.
Scientists capture the 'sound' of sunrise on Mars
Fri, 09 Nov 2018 10:14:22 EST
Scientists have created the soundtrack of the 5,000th Mars sunrise captured by the robotic exploration rover, Opportunity, using data sonification techniques to create a two-minute piece of music.
Solar power: largest study to date discovers 25 percent power loss across UK
Fri, 09 Nov 2018 10:14:16 EST
Regional 'hot spots' account for the power slump and these are more prevalent in the North of England than in the south.
Fully identified: The pathway of protons
Fri, 09 Nov 2018 10:14:14 EST
The question how certain algal enzymes accomplish the high proton transfer rate for hydrogen production had in the past been subject to speculation. Researchers traced the pathway of protons all the way into the active center of [FeFe]-hydrogenases. Their findings might enable scientists to create stable chemical reproductions of such efficient, yet fragile biocatalysts.
Artificial intelligence may fall short when analyzing data across multiple health systems
Fri, 09 Nov 2018 10:14:11 EST
A new study shows deep learning models must be carefully tested across multiple environments before being put into clinical practice.
Making steps toward improved data storage
Fri, 09 Nov 2018 10:14:09 EST
Researchers created the world's most powerful electromagnetic pulses to control a data-storage material's physical form, leading to a potential way to scale down memory devices and revolutionize how computers handle information.
Nano-scale process may speed arrival of cheaper hi-tech products
Fri, 09 Nov 2018 07:30:50 EST
Researchers have developed an inexpensive way to make products incorporating nanoparticles -- such as high-performance energy devices or sophisticated diagnostic tests -- which could speed the commercial development of devices, materials and technologies.
Intense tests reveal elusive, complex form of nitrogen
Fri, 09 Nov 2018 07:30:47 EST
Scientists have used high pressure and high temperature experiments to recreate an unusually complex form of nitrogen in the lab for the first time.
Tiny structures' construction, drip by drip
Thu, 08 Nov 2018 20:53:34 EST
Researchers explore methods of using carefully controlled droplets as a way to make soft, biomimetic structures. The trick comes in controlling the droplets, which form under competing influences like gravity and surface tension. A new study explains how a deeper understanding of these highly dynamic forces can be harnessed to cheaply and quickly fabricate objects that normally require a more expensive and time-consuming process.
Social media use increases depression and loneliness, study finds
Thu, 08 Nov 2018 16:43:16 EST
Facebook, Snapchat, and Instagram may not be great for personal well-being. The first experimental study examining use of multiple platforms shows a causal link between time spent on these social media and increased depression and loneliness.
Creating better devices: The etch stops here
Thu, 08 Nov 2018 16:43:11 EST
Researchers have discovered a new, more precise method to create nanoscale-size electromechanical devices.
Materials scientist creates fabric alternative to batteries for wearable devices
Thu, 08 Nov 2018 16:42:57 EST
A major factor holding back development of wearable biosensors for health monitoring is the lack of a lightweight, long-lasting power supply. Now scientists report that they have developed a method for making a charge-storing system that is easily integrated into clothing for 'embroidering a charge-storing pattern onto any garment.'
Do kitchen items shed antimicrobial nanoparticles after use?
Thu, 08 Nov 2018 14:24:51 EST
Scientists describe how they simulated knife motion, washing and scratching on bacteria-fighting, nanosilver-infused cutting boards to see if consumer use affects nanoparticle release. The test should help regulatory bodies identify if any safety or health risks exist from silver nanoparticles in kitchenware now being sold overseas, and if so, find ways to deal with them before the items are approved for sale in the United States.
Harvesting renewable energy from the sun and outer space at the same time
Thu, 08 Nov 2018 14:24:18 EST
Scientists have demonstrated for the first time that heat from the sun and coldness from outer space can be collected simultaneously with a single device. Their research suggests that devices for harvesting solar and space energy will not compete for land space and can actually help each other function more efficiently.
Watch a 3D-engineered human heart tissue beat
Thu, 08 Nov 2018 14:24:16 EST
Researchers have developed a way to grow human heart tissue that can serve as a model for the upper chambers of the heart, known as the atria. The tissue, derived from human induced pluripotent stem cells (hiPCSs), beats, expresses genes, and responds to drugs in a manner similar to a real human atrium. The model may be useful for evaluating disease mechanisms and drugs for atrial fibrillation -- the most common type of arrhythmia.
Extending the life of low-cost, compact, lightweight batteries
Thu, 08 Nov 2018 14:24:02 EST
A new method can greatly extend the life of inexpensive, compact, lightweight metal-air batteries.
See-through film rejects 70 percent of incoming solar heat
Thu, 08 Nov 2018 14:23:54 EST
Engineers have developed a heat-rejecting film that could be applied to a building's windows to reflect up to 70 percent of the sun's incoming heat. The film is able to remain highly transparent below 32 degrees Celsius, or 89 degrees Fahrenheit. They estimate that if every exterior-facing window in a building were covered in this film, the building's air conditioning and energy costs could drop by 10 percent.
Healing kidneys with nanotechnology
Thu, 08 Nov 2018 14:23:15 EST
Researchers have developed a new method for treating and preventing acute kidney injury. Their technique involves the use of tiny, self-assembling forms measuring just billionths of a meter in diameter.
A burst of 'synchronous' light
Thu, 08 Nov 2018 14:22:31 EST
Excited photo-emitters can cooperate and radiate simultaneously, a phenomenon called superfluorescence. Researchers have recently been able to create this effect with long-range ordered nanocrystal superlattices. This discovery could enable future developments in LED lighting, quantum sensing, quantum communication and future quantum computing.
Self-assembling protein filaments designed and built from scratch
Thu, 08 Nov 2018 14:22:19 EST
For the first time, scientists have created, from scratch, self-assembling protein filaments built from identical protein subunits that snap together spontaneously to form long, helical, thread-like configurations. Protein filaments are essential components of several structural and moving parts in living cells, as well as many body tissues. Being able to design and build protein filaments could allow for engineering novel materials for nano-electronics or scaffolds for new diagnostic tests.
Unlocking the secrets of metal-insulator transitions
Thu, 08 Nov 2018 13:41:43 EST
Using an X-ray technique, scientists found that the metal-insulator transition in the correlated material magnetite is a two-step process.
Aging a flock of stars in the Wild Duck Cluster
Thu, 08 Nov 2018 13:41:28 EST
The way they move belies the true ages of the almost 3,000 stars populating one of the richest star clusters known. Astronomers recently discovered the stars all were born in the same generation, solving a long-standing puzzle about how stars evolve.
Transforming carbon dioxide into industrial fuels
Thu, 08 Nov 2018 13:05:33 EST
One day in the not-too-distant future, the gases coming from power plants and heavy industry, rather than spewing into the atmosphere, could be captured and chemically transformed from greenhouse gases like carbon dioxide into industrial fuels or chemicals thanks to a new system that can use renewable electricity to reduce carbon dioxide into carbon monoxide -- a key commodity used in a number of industrial processes.
Pilot study suggests pedal desks could address health risks of sedentary workplace
Thu, 08 Nov 2018 13:05:11 EST
A recent pilot study by kinesiologists found that pedaling while conducting work tasks improved insulin responses to a test meal. Investigators found that insulin levels following the meal were lower when sedentary workers used a pedal desk compared to a standard desk. In addition, work skills were not decreased in the pedaling condition.
Powerful method probes small-molecule structures
Thu, 08 Nov 2018 13:05:06 EST
Small molecules -- from naturally occurring metabolites and hormones to synthetic medicines and pesticides -- can have big effects on living things. But for scientists to understand how the molecules work and how to design beneficial ones, they need to know the precise arrangement of atoms and chemical bonds. Now researchers have found a faster, simpler and potentially more reliable way to solve the structures of small molecules.
Factors affecting turbulence scaling
Thu, 08 Nov 2018 11:17:48 EST
A new study focuses on hydrodynamic effects of external disturbances on fluids at critical points, including inconsistent turbulence in all directions, or anisotropy, and varying degrees of compressibility.
Pore size alone does not matter when biological nanopores act as sugar chain biosensors
Thu, 08 Nov 2018 11:17:45 EST
The effectiveness of nanopore biosensors capable of identifying sugar chains from biological molecules involved in key biological processes also depends on the nanopore's electrical charge and inner pore design.
Scientists opening up access to science through DIY equipment
Thu, 08 Nov 2018 11:00:34 EST
Scientists have developed a piece of hardware to demonstrate how our brains function, as part of a growing range of equipment which uses DIY and 3D printable models to open up access to science education.
Metallic nanocatalysts imitate the structure of enzymes
Thu, 08 Nov 2018 11:00:29 EST
An international team of researchers has transferred certain structural characteristics of natural enzymes, which ensure particularly high catalytic activity, to metallic nanoparticles. The desired chemical reaction thus did not take place at the particle surface as usual, but in channels inside the metal particles -- and with three times higher catalytic activity.