|Top Technology News -- ScienceDaily
Fri, 21 Jul 2017 06:34:02 EDT
Sunny, rainy, or cloudy: New study shows how weather impacts response to mobile ads
Thu, 20 Jul 2017 15:53:20 EDT
Among the many factors that impact digital marketing and online advertising strategy, a new study provides insight to a growing trend among firms and big brands: weather-based advertising. According to the study, certain weather conditions are more amenable for consumer responses to mobile marketing efforts, while the tone of your ad content can either help or hurt such response depending on the current local weather.
NASA looks to solar eclipse to help understand Earth's energy system
Thu, 20 Jul 2017 15:53:17 EDT
It was midafternoon, but it was dark in an area in Boulder, Colorado on Aug. 3, 1998. A thick cloud appeared overhead and dimmed the land below for more than 30 minutes. Well-calibrated radiometers showed that there were very low levels of light reaching the ground, sufficiently low that researchers decided to simulate this interesting event with computer models. Now in 2017, inspired by the event in Boulder, NASA scientists will explore the moon's eclipse of the sun to learn more about Earth's energy system.
Pulses of electrons manipulate nanomagnets and store information
Thu, 20 Jul 2017 15:53:03 EDT
Skyrmions are a kind of nanomagnet, composed of a spin-correlated ensemble of electrons acting as a topological magnet on certain microscopic surfaces. The precise properties, like spin orientation, of such nanomagnets can store information. But how might you go about moving or manipulating these nanomagnets at will to store the data you want? New research demonstrates such read/write ability using bursts of electrons, encoding topological energy structures robustly enough for potential data storage applications.
How CRISPR proteins find their target
Thu, 20 Jul 2017 14:23:27 EDT
In addition to the Cas9 protein that bacteria use to bind and snip DNA, bacteria have other Cas proteins that know where to insert that viral DNA into the CRISPR region to remember which viruses have attacked and mount a defense. A research team has discovered how these proteins -- Cas1 and Cas2 -- locate and insert the viral DNA, and it relies on the flexibility of these enzymes and the shape of the DNA.
Evidence for the Majorana fermion, a particle that's its own antiparticle
Thu, 20 Jul 2017 14:23:21 EDT
In a discovery that concludes an 80-year quest, researchers found evidence of particles that are their own antiparticles. These 'Majorana fermions' could one day help make quantum computers more robust.
3-D imaging of surface chemistry in confinement
Thu, 20 Jul 2017 14:23:18 EDT
An optical imaging tool has been developed to visualize surface chemistry in real time. Researchers imaged the interfacial chemistry in the microscopically confined geometry of a simple glass micro-capillary. The glass is covered with hydroxyl (-OH) groups that can lose a proton -- a much-studied chemical reaction that is important in geology, chemistry and technology. A 100-micron long capillary displayed a remarkable spread in surface OH bond dissociation constant of a factor of a billion.
Molecular 'pulleys' improve battery performance
Thu, 20 Jul 2017 14:23:14 EDT
Scientists have reported a molecular pulley binder for high-capacity silicon anodes of lithium ion batteries.
Viewing Martian moon orbiting the red planet
Thu, 20 Jul 2017 13:19:21 EDT
While photographing Mars, NASA's Hubble Space Telescope captured a cameo appearance of the tiny moon Phobos on its trek around the Red Planet. Hubble took 13 separate exposures over 22 minutes to create a time-lapse video showing the moon's orbital path.
Could sharks help save shipping industry billions?
Thu, 20 Jul 2017 11:36:55 EDT
Whales, sharks, butterflies and lotus leaves might together hold the secret to saving the shipping industry millions and help save the planet, according to a marine biologist.
Spiral arms allow school children to weigh black holes
Thu, 20 Jul 2017 11:36:39 EDT
Astronomers have provided a way for armchair astronomers, and even primary school children, to merely look at a spiral galaxy and estimate the mass of its hidden, central black hole.
Novel 3-D printing process strengthens parts by 275 percent
Thu, 20 Jul 2017 10:36:02 EDT
A new way to make 3-D printed parts stronger and immediately useful in real-world applications has been revealed by researchers. They applied the traditional welding concepts to bond the submillimeter layers in a 3-D printed part together, while in a microwave.
Semiliquid chains pulled out of a sea of microparticles
Thu, 20 Jul 2017 10:31:56 EDT
An electrode brought to the surface of a liquid that contains microparticles can be used to pull out surprisingly long chains of particles. Curiously enough, the particles in the chains are held together by a thin layer of liquid that covers them.
3-D printing sweeps toy manufacturing off the shelves
Thu, 20 Jul 2017 10:31:52 EDT
People have scoffed that 3-D printers are simply toys themselves. But they probably didn't realize how much money is made off playthings. Do-it-yourself manufacturing -- making goods at home with a 3-D printer using open source designs from a free online repository -- has a multi-million-dollar impact on the overall toy industry.
Cucumbers in space provide insights on root growth
Thu, 20 Jul 2017 10:31:41 EDT
Scientists have untangled the competing influences of water and gravity on plant roots -- by growing cucumbers during spaceflight.
'Sound' research shows slower boats may cause manatees more harm than good
Thu, 20 Jul 2017 09:53:58 EDT
Slower boat speeds reduce risks to manatees. Or do they? Not exactly, according to new research. In fact, the very laws enacted to slow down boats in manatee habitats may actually be doing more harm than good. Slowing down boats makes it more difficult for manatees to detect and locate approaching boats. An innovative alerting device is proving to deliver a better solution.
Here's a tip: Indented cement shows unique properties
Wed, 19 Jul 2017 17:37:12 EDT
Three key molecular mechanisms control the mechanics of layered crystals such as tobermorite, a natural crystal used by the Romans to make concrete.
Imaging of scar tissue formation
Wed, 19 Jul 2017 17:37:10 EDT
Organs respond to injuries with the formation of new fibrous tissue, which can result in scarring. This process called fibrogenesis can now be monitored noninvasively on a molecular level, as scientists report. They have created a new gadolinium-based probe for magnetic resonance imaging that specifically reports the proteins involved in fibrogenesis. The imaging method may provide a quantitative assessment of the formation of the potentially harmful scar tissue.
New algorithm, metrics improve autonomous underwater vehicles' energy efficiency
Wed, 19 Jul 2017 15:41:05 EDT
Robotics researchers have found a way for autonomous underwater vehicles to navigate strong currents with greater energy efficiency, which means the AUVs can gather data longer and better.
Toward 20-Story Earthquake-Safe Buildings Made From Wood
Wed, 19 Jul 2017 14:12:15 EDT
A two-story wooden structure endured four different earthquake simulations on July 14, 2017 on the world's largest outdoor shake table here in San Diego. And it's still standing before more tests in the coming weeks. The goal of the tests is to gather enough data to design wood buildings as tall as 20 stories that do not suffer significant damage during large earthquakes. That is, not only can occupants leave the building unharmed, but they can come back and resume living in the building shortly after a temblor.
Smart walk assist improves rehabilitation
Wed, 19 Jul 2017 14:11:01 EDT
An algorithm that adjusts how a mobile harness, suspended from the ceiling, assists patients suffering from spinal cord injury or stroke has been developed by researchers. In a clinical study with over 30 patients, the scientists showed that the patients wearing the smart walking assist immediately improved their locomotor abilities, enabling them to perform activities of daily living that would not be possible without the support.
Folding robots: No battery, no wire, no problem
Wed, 19 Jul 2017 14:09:45 EDT
Folding robots based on origami have emerged as an exciting new frontier of robotic design, but generally require onboard batteries or a wired connection to a power source, limiting their functionality. Scientist have now created battery-free folding robots that are capable of complex, repeatable movements powered and controlled through a wireless magnetic field.
More than 8. 3 billion tons of plastics made: Most has now been discarded
Wed, 19 Jul 2017 14:09:39 EDT
Humans have created 8.3 billion metric tons of plastics since large-scale production of the synthetic materials began in the early 1950s, and most of it now resides in landfills or the natural environment, according to a study.
Are magnets the secret to Elastigirl's powers?
Wed, 19 Jul 2017 14:09:30 EDT
Under certain conditions, the magnetic properties of a material can predict the relationship between its elasticity and temperature, a physicist has found. Given the ease with which magnetic fields can be manipulated, the study hints that elasticity could someday be tailored with the press of a button or turn of a knob.
Uranium-based compound improves manufacturing of nitrogen products
Wed, 19 Jul 2017 13:23:02 EDT
Scientists have developed a uranium-based complex that can allow nitrogen fixation reactions to take place in ambient conditions. The work overcomes one of the biggest difficulties to building more efficient industrial-scale nitrogen products like ammonia.
Path to discovering new topological materials
Wed, 19 Jul 2017 13:22:58 EDT
Researchers have found a recipe for discovering new topological materials, which have exotic electronic properties that hold promise for future technologies. Until now, finding these materials has been a matter of trial and error.
Indestructible virus yields secret to creating incredibly durable materials
Wed, 19 Jul 2017 13:22:35 EDT
It lives in boiling acid that dissolves flesh and bone. Now scientists have unlocked the secrets of the indestructible virus, potentially allowing them to harness its remarkable properties to create super-durable materials and better treat disease.
Nanoparticles could spur better LEDs, invisibility cloaks
Wed, 19 Jul 2017 13:22:32 EDT
In an advance that could boost the efficiency of LED lighting by 50 percent and even pave the way for invisibility cloaking devices, a team of researchers has developed a new technique that peppers metallic nanoparticles into semiconductors.
Heat tweet: Users flock to Twitter when temperatures rise
Wed, 19 Jul 2017 13:22:26 EDT
Researchers have examined the impact rising temperatures have on Twitter activity, and how government officials use the social media tool to warn the general public of heatwave conditions.
Fresh role for nitric oxide uncovered
Wed, 19 Jul 2017 13:22:19 EDT
Chemists have uncovered a fresh role for nitric oxide that could send biochemical textbooks back for revision.
New technique for manipulating polarization of terahertz radiation
Wed, 19 Jul 2017 11:50:53 EDT
A new kind of polarizing beamsplitter has been created for terahertz radiation, which could prove useful in imaging and communications systems.
Smallest particles and the vastness of the universe connected
Wed, 19 Jul 2017 11:35:32 EDT
Are density distributions of the vast universe and the nature of smallest particles related? Scientists have now revealed the connection between those two aspects, and argued that our universe could be used as a particle physics 'collider' to study the high energy particle physics. Their findings mark the first step of cosmological collider phenomenology and pave the way for future discovery of new physics unknown yet to humankind.
Robotics-based study provides insight into predator-prey interactions
Wed, 19 Jul 2017 11:33:56 EDT
Scientists have put forth a robotics-based study to control information flow in predator-prey interactions, as well as test the validity of transfer entropy when attempting to understand causal influences of the system.
Smart toys without the batteries
Wed, 19 Jul 2017 11:33:45 EDT
A challenge in entertaining young children is keeping their toys powered up. Now, one group reports that they are one step closer to battery-free interactive games.
Aging U.S. power plants provide risks and opportunities
Wed, 19 Jul 2017 11:33:34 EDT
When it comes to the current plans to retire US power plants, researchers believe we are 'running towards a cliff with no fence.' They found that power plant retirement trends will complicate achieving long-term carbon dioxide emission reduction targets and require a significant increase in capital investments.
Simulation reveals universal signature of chaos in ultracold reactions
Wed, 19 Jul 2017 11:33:28 EDT
Researchers have performed the first ever quantum-mechanical simulation of the benchmark ultracold chemical reaction between potassium-rubidium (KRb) and a potassium atom, opening the door to new controlled chemistry experiments and quantum control of chemical reactions that could spark advances in quantum computing and sensing technologies.
Supramolecular materials with a time switch
Wed, 19 Jul 2017 11:33:06 EDT
Materials that assemble themselves and then simply disappear at the end of their lifetime are quite common in nature. Researchers have now successfully developed supramolecular materials that disintegrate at a predetermined time -- a feature that could be used in numerous applications.
Evidence of the Higgs particle's decay in quarks
Wed, 19 Jul 2017 11:32:55 EDT
Researchers have found strong evidence that, among other things, the Higgs particle decays into quarks. The researchers analyzed data sets that were recorded in 2015 and 2016 with the ATLAS detector at the world's largest particle accelerator, the Large Hadron Collider (LHC) at the European Organization for Nuclear Research (CERN) in Geneva, Switzerland.
Teaching science subjects without training
Wed, 19 Jul 2017 10:05:46 EDT
Despite efforts from No Child Left Behind to promote 'highly qualified' teaching, recent research shows that just 36 percent of new secondary science teachers are teaching only in their trained subject.
Antiaromatic molecule displays record electrical conductance
Wed, 19 Jul 2017 10:05:42 EDT
Researchers demonstrate high electrical conductance for an antiaromatic nickel complex -- an order of magnitude higher than for a similar aromatic complex. Since the conductance is also tunable by electrochemical gating, antiaromatic complexes are promising materials for future electronic devices.
Innovative nanosensor for disease diagnosis
Wed, 19 Jul 2017 10:05:34 EDT
A research group has developed diagnostic sensors using protein-encapsulated nanocatalysts, which can diagnose certain diseases by analyzing human exhaled breath. This technology enables early monitoring of various diseases through pattern recognition of biomarker gases related to diseases in human exhalation.
Enhanced oil recovery method developed
Wed, 19 Jul 2017 10:05:24 EDT
A new class of materials which are suitable agents for oil displacing in enhanced oil recovery have been developed.
Titanium dioxide nanoparticles can exacerbate colitis
Wed, 19 Jul 2017 10:05:21 EDT
Titanium dioxide, one of the most-produced nanoparticles worldwide, is being used increasingly in foodstuffs. When intestinal cells absorb titanium dioxide particles, this leads to increased inflammation and damage to the intestinal mucosa in mice with colitis. Researchers recommend that patients with colitis should avoid food containing titanium dioxide particles.
Manipulating electron spins without loss of information
Wed, 19 Jul 2017 10:05:13 EDT
Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been recently demonstrated.
The asymmetric synthesis of halogenated compounds from carboxylic acids is world first
Wed, 19 Jul 2017 09:21:47 EDT
Researchers have developed a new reaction to produce chlorinated compounds with high isomeric purity. Such compounds are important building blocks for target molecules. However the molecules come in left- and right-handed versions (enantiomers). They can be produced from carboxylic acids, by replacing an acid with a chlorine; however, conventional methods produce equal mixtures of both isomers, but the new method with a chiral amine catalyst specifically yields the desired isomer.
3-D-printed water quality sensor tested
Wed, 19 Jul 2017 09:21:42 EDT
Researchers have designed a tiny device -- built using a 3-D printer -- that can monitor drinking water quality in real time and help protect against waterborne illness.
Powerful laser system for driving sophisticated experiments in attosecond science
Wed, 19 Jul 2017 09:00:33 EDT
Attosecond science has revolutionized the way we look into the time-dependent evolution of the microscopic world, where the behavior of matter is governed by the rules of quantum mechanics. The technological breakthrough that made possible the development of the field is based on the generation of ultra-short laser pulses that last only a few oscillations of the electric field. While ultra-short laser pulses have been used in a few labs to study light-induced dynamics in atoms and molecules, many questions remain unanswered, due to the low data rates and inherently low SNR achievable with current state-of-the-art laser systems.
New report on cell-permeable nanobodies
Wed, 19 Jul 2017 09:00:27 EDT
Scientists have managed to introduce tiny antibodies into living cells. In a new article, the researchers report on the synthesis and applications for these nanobodies.
Protein produced with electricity to alleviate world hunger
Wed, 19 Jul 2017 09:00:25 EDT
A batch of single-cell protein has been produced by using electricity and carbon dioxide, report scientists. Protein produced in this way can be further developed for use as food and animal feed. The method releases food production from restrictions related to the environment. The protein can be produced anywhere renewable energy, such as solar energy, is available.
Holograms taken to new dimension
Wed, 19 Jul 2017 08:47:46 EDT
Using sophisticated algorithms and a new fabrication method, a team of electrical and computer engineers has discovered a way to create inexpensive full-color 2-D and 3-D holograms that are far more realistic, brighter and can be viewed at wider angles than current holograms. The applications for this technology could be wide-ranging, from currency and identification badges to amusement rides, 3-D movies and pictures on a larger scale, and advertisements.
New harmless radiopaque glue to seal bleeding and guide surgery
Wed, 19 Jul 2017 08:47:38 EDT
First nanoparticle-based adhesive with imaging contrast effect in CT and ultrasound was successfully tested in animals and showed less toxicity than the FDA-approved glue CA-Lp.
New gel coatings may lead to better catheters, condoms
Tue, 18 Jul 2017 17:00:40 EDT
Catheters, intravenous lines, and other types of surgical tubing are a medical necessity for managing a wide range of diseases. But a patient's experience with such devices is rarely a comfortable one. Engineers have designed a gel-like material that can be coated onto standard plastic or rubber devices, providing a softer, more slippery exterior that can significantly ease a patient's discomfort. The coating can even be tailored to monitor and treat signs of infection.
Finding leaks while they're easy to fix
Tue, 18 Jul 2017 15:24:57 EDT
A newly developed system can inspect water or gas pipes from the inside and find even tiny leaks. The robotic device enters the pipes via a fire hydrant, avoiding the need to dig up streets.
Evaluating low-dose toxicity from endocrine active chemicals
Tue, 18 Jul 2017 15:24:49 EDT
A new report proposes a strategy that the US Environmental Protection Agency (EPA) should use to evaluate the evidence of adverse human health effects from low doses of exposure to chemicals that can disrupt the endocrine system.
Making lab equipment on the cheap
Tue, 18 Jul 2017 14:29:45 EDT
Laboratory equipment is one of the largest cost factors in neuroscience. However, many experiments can be performed with good results using self-assembled setups involving 3-D printed components and self-programmed electronics. Researchers have now created 'FlyPi' -- a low-cost imaging and microscope system for research, training and teaching.
High-energy trap in our galaxy's center, revealed by gamma-ray telescopes
Tue, 18 Jul 2017 14:29:16 EDT
The center of our Milky Way contains a 'trap' that concentrates some of the highest-energy cosmic rays, among the fastest particles in the galaxy, a combined analysis of data from NASA's Fermi Gamma-ray Space Telescope and the High Energy Stereoscopic System, a ground-based observatory in Namibia, suggests.
Titan simulations show importance of close two-way coupling between human and Earth systems
Tue, 18 Jul 2017 13:10:42 EDT
By using supercomputers such as the Oak Ridge Leadership Computing Facility's Titan, a large multidisciplinary team of scientists developed a new integrated climate model designed to reduce uncertainties in future climate predictions as it bridges Earth systems with energy and economic models and large-scale human impact data.
3-D models help scientists gauge flood impact
Tue, 18 Jul 2017 13:10:35 EDT
Using one of the world's most powerful supercomputers, a research team performed one of the first highly resolved, 3-D, volume-of-fluid Reynolds-averaged Navier-Stokes (RANS) simulations of a dam break in a natural environment. The simulation allowed the team to map precise water levels for actual flood events over time.
Antibiotic-releasing polymer may help eradicate joint implant infection
Tue, 18 Jul 2017 12:47:30 EDT
Investigators have developed an antibiotic-releasing polymer that may greatly simplify the treatment of prosthetic joint infection.
Ancient, massive asteroid impact could explain Martian geological mysteries
Tue, 18 Jul 2017 11:37:16 EDT
A colossal impact with a large asteroid early in Mars' history may have ripped off a chunk of the northern hemisphere and left behind a legacy of metallic elements in the planet's interior. The crash also created a ring of rocky debris around Mars that may have later clumped together to form its moons, Phobos and Deimos.
Non-toxic alternative for next-generation solar cells
Tue, 18 Jul 2017 11:37:13 EDT
Researchers have demonstrated how a non-toxic alternative to lead could form the basis of next-generation solar cells.