|Top Technology News -- ScienceDaily
Tue, 22 Jan 2019 05:33:02 EST
New nanoparticle targets tumor-infiltrating immune cells, flips switch
Mon, 21 Jan 2019 11:54:12 EST
A team of Vanderbilt University bioengineers today announced a major breakthrough in penetrating the cells inside tumors and flipping on a switch that tells them to start fighting.
On Facebook and Twitter your privacy is at risk -- even if you don't have an account, study finds
Mon, 21 Jan 2019 11:53:54 EST
New research shows that on social media, like Facebook, privacy can be at risk, even if a person doesn't have an account. Scientists demonstrated that a person's identity and actions can be predicted from their friend's posts and writings online.
North Sea rocks could act as large-scale renewable energy stores
Mon, 21 Jan 2019 11:53:52 EST
Rocks in the seabed off the UK coast could provide long-term storage locations for renewable energy production, new research suggests.
Mechanical engineers develop process to 3-D print piezoelectric materials
Mon, 21 Jan 2019 11:53:49 EST
New printing technique and materials could be used to develop intelligent materials and self-adaptive infrastructures and transducers.
New 'architecture' discovered in corn
Mon, 21 Jan 2019 10:33:51 EST
New research on the United States' most economically important agricultural plant -- corn -- has revealed a different internal structure of the plant than previously thought, which can help optimize how corn is converted into ethanol.
Mystery orbits in outermost reaches of solar system not caused by 'Planet Nine'
Mon, 21 Jan 2019 10:33:46 EST
The strange orbits of some objects in the farthest reaches of our solar system, hypothesized by some astronomers to be shaped by an unknown ninth planet, can instead be explained by the combined gravitational force of small objects orbiting the sun beyond Neptune, say researchers.
Broadband achromatic metalens focuses light regardless of polarization
Mon, 21 Jan 2019 10:33:40 EST
Researchers have developed a polarization-insensitive metalens that can achromatically focus light across the visible spectrum without aberrations. This flat lens could be used for everything from virtual or augmented reality headsets to microscopy, lithography, sensors, and displays.
A new low-latency congestion control for cellular networks
Sun, 20 Jan 2019 15:40:51 EST
A recent study has proposed a novel technique that can reduce the congestion issues in the network environment.
Using bacteria to create a water filter that kills bacteria
Fri, 18 Jan 2019 14:55:42 EST
Engineers have created a bacteria-filtering membrane using graphene oxide and bacterial nanocellulose. It's highly efficient, long-lasting and environmentally friendly -- and could provide clean water for those in need.
Enhanced NMR reveals chemical structures in a fraction of the time
Fri, 18 Jan 2019 14:55:39 EST
Researchers have developed a way to dramatically enhance the sensitivity of nuclear magnetic resonance spectroscopy (NMR), a technique used to study the structure and composition of many kinds of molecules, including proteins linked to Alzheimer's and other diseases.
Smart microrobots that can adapt to their surroundings
Fri, 18 Jan 2019 14:55:36 EST
Scientists have developed tiny elastic robots that can change shape depending on their surroundings. Modeled after bacteria and fully biocompatible, these robots optimize their movements so as to get to hard-to-reach areas of the human body. They stand to revolutionize targeted drug delivery.
Classic double-slit experiment in a new light
Fri, 18 Jan 2019 14:55:33 EST
An international research group has developed a new X-ray spectroscopy method based on the classical double-slit experiment to gain new insights into the physical properties of solids.
Waves in Saturn's rings give precise measurement of planet's rotation rate
Fri, 18 Jan 2019 12:30:19 EST
Saturn's distinctive rings were observed in unprecedented detail by NASA's Cassini spacecraft, and scientists have now used those observations to probe the interior of the giant planet and obtain the first precise determination of its rotation rate. The length of a day on Saturn, according to their calculations, is 10 hours 33 minutes and 38 seconds.
New ways to harness wasted methane
Fri, 18 Jan 2019 11:08:18 EST
The primary component of natural gas, methane, is itself a potent greenhouse gas. A recent study has unveiled a high performance catalyst for methane conversion to formaldehyde.
Saturn hasn't always had rings
Thu, 17 Jan 2019 14:21:59 EST
In its last days, the Cassini spacecraft looped between Saturn and its rings so that Earth-based radio telescopes could track the gravitational tug of each. Scientists have now used these measurements to determine the mass of the rings and estimate its age, which is young: 10-100 million years. This supports the hypothesis that the rings are rubble from a comet or Kuiper Belt object captured late in Saturn's history.
New thermoelectric material delivers record performance
Thu, 17 Jan 2019 14:21:54 EST
Taking advantage of recent advances in using theoretical calculations to predict the properties of new materials, researchers have discovered a new class of half-Heusler thermoelectric compounds, including one with a record high figure of merit -- a metric used to determine how efficiently a thermoelectric material can convert heat to electricity.
Stress fracture? Your foot hitting pavement wasn't the main problem
Thu, 17 Jan 2019 14:20:49 EST
It starts as a persistent and irritating pain in the foot or lower leg, then it gets more intense, maybe with swelling, and soon a runner knows she's being sidelined by one of the most common running injuries: a stress fracture. These tiny cracks in the bone can halt training for months or even end a sports season. A segment of the multibillion-dollar wearables industry aims to save potential victims from this fate, but an engineering professor found a major problem: the devices are measuring the wrong thing.
Scientists find increase in asteroid impacts on ancient Earth by studying the Moon
Thu, 17 Jan 2019 14:20:42 EST
A team of scientists has determined the number of asteroid impacts on the Moon and Earth increased by two to three times starting around 290 million years ago. Previous theories held that there were fewer craters on both objects dating back to before that time because they had disappeared due to erosion. The new findings claim that there were simply fewer asteroid impacts during that earlier period.
Reinforcement learning expedites 'tuning' of robotic prosthetics
Thu, 17 Jan 2019 14:20:34 EST
Researchers have developed an intelligent system for 'tuning' powered prosthetic knees, allowing patients to walk comfortably with the prosthetic device in minutes, rather than the hours necessary if the device is tuned by a trained clinical practitioner. The system is the first to rely solely on reinforcement learning to tune the robotic prosthesis.
How molecules teeter in a laser field
Thu, 17 Jan 2019 11:33:37 EST
When molecules interact with the oscillating field of a laser, an instantaneous, time-dependent dipole is induced. This very general effect underlies diverse physical phenomena. Now scientists report on an experiment where the dependence of the driven-dipole response on the bound state of an electron in a methyl iodine molecule is revealed.
Blister fluid could help diagnose burn severity
Thu, 17 Jan 2019 11:33:29 EST
Severe burns can leave physical and psychological scars, especially in children. When a burn patient enters the clinic, doctors use factors such as the depth and size of the burn, as well as the time required for skin healing -- or re-epithelialization -- to determine the best course of treatment. Now, researchers have found another, possibly more accurate way to classify burn severity: analyzing proteins in blister fluid.
Complex molecules emerge without evolution or design
Thu, 17 Jan 2019 11:08:24 EST
In biology, folded proteins are responsible for most advanced functions. These complex proteins are the result of evolution or design by scientists. Now scientists have discovered a new class of complex folding molecules that emerge spontaneously from simple building blocks.
Additive manufacturing reflects fundamental metallurgical principles to create materials
Thu, 17 Jan 2019 11:08:21 EST
Engineers have been taking a novel approach to the development of engineering components produced using additive manufacturing.
Cultivating 4D tissues: The self-curving cornea
Thu, 17 Jan 2019 11:08:13 EST
Scientists have developed a biological system which lets cells form a desired shape by molding their surrounding material -- in the first instance creating a self-curving cornea. The astonishing video shows the cornea molding itself into a bowl-like structure over the course of 5 days.
New test to detect disease and infection
Thu, 17 Jan 2019 11:08:08 EST
Researchers have developed a highly innovative new enzyme biomarker test that has the potential to indicate diseases and bacterial contamination saving time, money and possibly lives.
This computer program makes pharma patents airtight
Thu, 17 Jan 2019 11:08:05 EST
Routes to making life-saving medications and other pharmaceutical compounds are among the most carefully protected trade secrets in global industry. Building on recent work programming computers to identify synthetic pathways leading to pharmaceutically complex molecules, researchers have unveiled computerized methods to suggest only synthetic strategies that bypass patent-protected aspects of essential drugs.
Puzzling phenomenon in a quantum gas: Insulators with conducting edges
Thu, 17 Jan 2019 10:24:04 EST
Insulators that are conducting at their edges hold promise for interesting technological applications. However, until now their characteristics have not been fully understood. Physicists have now modeled what are known as topological insulators with the help of ultracold quantum gases. They now demonstrate how the edge states could be experimentally detected.
Proposed engineering method could help make buildings and bridges safer
Thu, 17 Jan 2019 10:23:59 EST
Researchers discovered that the distance between dislocations in nanolayer interfaces of pearlite can determine how much the material can stretch or contract without breaking (ductility). The dislocations are disruptions in the regular arrangements of atoms in nanolayers. This discovery opens the possibility of engineering materials with higher ductility by simply manipulating the spacing between their dislocations and may improve the safety of structures such as buildings and bridges in earthquakes.
Measuring ability of artificial intelligence to learn is difficult
Thu, 17 Jan 2019 09:26:04 EST
Organizations looking to benefit from the artificial intelligence (AI) revolution should be cautious about putting all their eggs in one basket, a study has found.
New light shed on intensely studied material
Thu, 17 Jan 2019 09:26:01 EST
The organic polymer PEDOT is probably one of the world's most intensely studied materials. Despite this, researchers have now demonstrated that the material functions in a completely different manner than previously believed. The result has huge significance in many fields of application.
Nanoparticle breakthrough in the fight against cancer
Thu, 17 Jan 2019 09:25:50 EST
A recent study has introduced a novel targeted drug delivery system in the fight against cancer.
New scale for electronegativity rewrites the chemistry textbook
Thu, 17 Jan 2019 09:04:35 EST
Electronegativity is one of the most well-known models for explaining why chemical reactions occur. Now scientists have redefined the concept with a new, more comprehensive scale.
Researchers create 'shortcut' to terpene biosynthesis in E. coli
Wed, 16 Jan 2019 15:55:41 EST
Researchers have developed an artificial enzymatic pathway for synthesizing isoprenoids, or terpenes, in E.coli. This shorter, more efficient, cost-effective and customizable pathway transforms E. coli into a factory that can produce terpenes for use in everything from cancer drugs to biofuels.
Molecules 'spin flip' from magnetic to non-magnetic forms dynamically
Wed, 16 Jan 2019 15:55:38 EST
Solar cells, quantum computing and photodynamic cancer therapy. These all involve molecules switching between magnetic and nonmagnetic forms. Previously this process, called a "spin flip," was thought to occur slowly in most cases. Now, researchers have discovered spin flips happen in one half of one trillionth of a second, or half a picosecond in the course of a chemical reaction. To understand how fast it is -- watches count in seconds, sporting games are timed in 10ths of a second, and light travels just under 12 inches in one-billionth of a second. Spin flips are faster.
Feathers: Better than Velcro?
Wed, 16 Jan 2019 15:06:32 EST
The structures zipping together the barbs in bird feathers could provide a model for new adhesives and new aerospace materials, according to a new study. Researchers 3D printed models of the structures to better understand their properties.
Full carbonate chemistry at the site of calcification in a tropical coral
Wed, 16 Jan 2019 15:06:27 EST
Researchers have succeeded in directly measuring three key parameters necessary for skeleton formation in a live tropical coral. This way, they completely characterized the carbonate chemistry at the site of calcification.
High-speed supernova reveals earliest moments of a dying star
Wed, 16 Jan 2019 14:06:43 EST
An international team of researchers found evidence for the much theorized 'hot cocoon'.
Wearable sensor can detect hidden anxiety, depression in young children
Wed, 16 Jan 2019 14:06:40 EST
Anxiety and depression in young children are hard to detect and often go untreated, potentially leading to anxiety disorders and increased risk of suicide and drug abuse later. In a new study, researchers showed a wearable sensor detected these 'internalizing disorders' in children with 81 percent accuracy, reducing to 20 seconds what would take clinicians months to diagnose, opening the door to inexpensive screening that could be part of routine developmental assessments.
'Ambidextrous' robots could dramatically speed e-commerce
Wed, 16 Jan 2019 14:06:38 EST
Engineers present a novel, 'ambidextrous' approach to grasping a diverse range of object shapes without training.
Proteins use a lock and key system to bind to DNA
Wed, 16 Jan 2019 13:08:23 EST
Scientists have traditionally thought that DNA binding proteins use patterns in the genome's code of As, Cs, Ts, and Gs to guide them to the right location, with a given protein only binding to a specific sequence of letters. In a new study, scientists discovered that proteins must rely on another clue to know where to bind: the DNA's three-dimensional shape.
Novel materials convert visible into infrared light
Wed, 16 Jan 2019 13:08:12 EST
Scientists have succeeded in developing a chemical process to convert visible light into infrared energy, allowing innocuous radiation to penetrate living tissue and other materials without the damage caused by high-intensity light exposure.
From emergence to eruption: Comprehensive model captures life of a solar flare
Wed, 16 Jan 2019 12:26:54 EST
A team of scientists has, for the first time, used a single, cohesive computer model to simulate the entire life cycle of a solar flare: from the buildup of energy thousands of kilometers below the solar surface, to the emergence of tangled magnetic field lines, to the explosive release of energy in a brilliant flash.
Artificial intelligence applied to the genome identifies an unknown human ancestor
Wed, 16 Jan 2019 12:26:50 EST
By combining deep learning algorithms and statistical methods, investigators have identified, in the genome of Asian individuals, the footprint of a new hominid who cross bred with its ancestors tens of thousands of years ago.
Drones shown to make traffic crash site assessments safer, faster and more accurate
Wed, 16 Jan 2019 12:26:47 EST
Research shows that drones can be more effective and safer in crash mapping of vehicular highway accidents than conventional methods. Drones using new imaging technology allows highway safety officers to capture and print 3D composites of crash sites and reduce mapping time and improve traffic flow following a crash by 60 percent.
Evidence of changing seasons, rain on Saturn's moon Titan's north pole
Wed, 16 Jan 2019 11:55:37 EST
An image from the international Cassini spacecraft provides evidence of rainfall on the north pole of Titan, the largest of Saturn's moons. The rainfall would be the first indication of the start of a summer season in the moon's northern hemisphere.
New AI can detect urinary tract infections
Wed, 16 Jan 2019 11:55:31 EST
New AI could identify and help reduce one of the top causes of hospitalization for people living with dementia: urinary tract infections (UTI).
Army researchers explore benefits of immersive technology for soldiers
Wed, 16 Jan 2019 11:55:23 EST
Army researchers are exploring the benefits of immersive technology for warfighters. They have developed a platform to assess this technology called AURORA-MR.
Fiery sighting: A new physics of eruptions that damage fusion experiments
Wed, 16 Jan 2019 11:55:21 EST
Sudden bursts of heat that can damage the inner walls of tokamak fusion experiments are a hurdle that operators of the facilities must overcome. Such bursts, called 'edge localized modes (ELMs),' occur in doughnut-shaped tokamak devices that house the hot, charged plasma that is used to replicate on Earth the power that drives the sun and other stars. Now researchers have directly observed a possible and previously unknown process that can trigger damaging ELMs.
Welding process for manufacturing industries
Wed, 16 Jan 2019 11:55:15 EST
New research will optimize the welding, additive and manufacturing process.
'Statistics anxiety' is real, and new research suggests targeted ways to handle it
Wed, 16 Jan 2019 11:11:31 EST
A new study uses an analytical technique called 'network science' to determine factors contributing to statistics anxiety among psychology majors.
Pushing the boundaries of 3D microscopy
Wed, 16 Jan 2019 11:10:49 EST
Two newly developed methods will help researchers to study the 3D structure of complex surfaces and of individual neurons better than ever before. Technologists report new imaging protocols that will advance neuroscience and (bio)imaging in general.
Chaos in the body tunes up your immune system
Wed, 16 Jan 2019 11:10:39 EST
Chaos in bodily regulation can optimize our immune system, according to researchers. The discovery may prove to be of great significance for avoiding serious diseases such as cancer and diabetes.
Ammonia by phosphorus catalysis
Wed, 16 Jan 2019 11:10:35 EST
More than 100 years after the introduction of the Haber-Bosch process, scientists continue to search for alternative ammonia production routes that are less energy demanding. Scientists have now discovered that black phosphorus is an excellent catalyst for the electroreduction of nitrogen to ammonia. Layered black phosphorus nanosheets are a highly selective and efficient catalyst in this process.
Identifying 'friends' in an objective manner
Wed, 16 Jan 2019 11:09:58 EST
Scientists have developed a new method for identifying individuals that have essential connections between them -- what they call 'significant ties'.
Ultra ultrasound to transform new tech
Wed, 16 Jan 2019 11:09:55 EST
A new, more sensitive method to measure ultrasound may revolutionize everything from medical devices to unmanned vehicles. Researchers have combined modern nanofabrication and nanophotonics techniques to build the ultra precise ultrasound sensors on a silicon chip.
Mechanism helps explain the ear's exquisite sensitivity
Wed, 16 Jan 2019 11:09:45 EST
Researchers have decoded the way structures in the inner ear give our hearing its remarkable sensitivity and selectivity.
New quantum structures in super-chilled helium may mirror early days of universe
Wed, 16 Jan 2019 09:06:53 EST
Experimental proof of a decades-old prediction opens a pathway to recreate possible conditions of the early universe here on earth.
Tool for nonstatisticians automatically generates models that glean insights from complex datasets
Tue, 15 Jan 2019 17:43:25 EST
Researchers are hoping to advance the democratization of data science with a new tool for nonstatisticians that automatically generates models for analyzing raw data.
Breakthrough in ice-repelling materials
Tue, 15 Jan 2019 16:23:40 EST
Icy weather is blamed for multibillion dollar losses every year in the United States, including delays and damage related to air travel, infrastructure and power generation and transmission facilities. Now researchers have reported creating a durable silicone polymer coating capable of repelling ice from any surface.
Pore size influences nature of complex nanostructures
Tue, 15 Jan 2019 16:23:34 EST
In new research that could help inform development of new materials, chemists have found that the empty space ('pores') present in two-dimensional molecular building blocks fundamentally changes the strength of these van der Waals forces, and can potentially alter the assembly of sophisticated nanostructures.