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ScienceDaily: Top Technology News


Social media use increases depression and loneliness, study finds
Creating better devices: The etch stops here
Materials scientist creates fabric alternative to batteries for wearable devices
Harvesting renewable energy from the sun and outer space at the same time
Watch a 3D-engineered human heart tissue beat
See-through film rejects 70 percent of incoming solar heat
Healing kidneys with nanotechnology
A burst of 'synchronous' light
Self-assembling protein filaments designed and built from scratch
Aging a flock of stars in the Wild Duck Cluster
Factors affecting turbulence scaling
Pore size alone does not matter when biological nanopores act as sugar chain biosensors
Scientists opening up access to science through DIY equipment
Metallic nanocatalysts imitate the structure of enzymes
New ranking method could help hotels to maximize their revenue
Scientists shuffle the deck to create materials with new quantum behaviors
How beatboxers produce sound: Using real-time MRI to understand
Watching nanoparticles: Researchers make movies of photochemistry in single nanoparticles
When quantum particles swirl about, they still obey universal laws


Social media use increases depression and loneliness, study finds



Posted: 08 Nov 2018 01:43 PM PST


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



Posted: 08 Nov 2018 01:43 PM PST


Researchers have discovered a new, more precise method to create nanoscale-size electromechanical devices.


Materials scientist creates fabric alternative to batteries for wearable devices



Posted: 08 Nov 2018 01:42 PM PST


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.'


Harvesting renewable energy from the sun and outer space at the same time



Posted: 08 Nov 2018 11:24 AM PST


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



Posted: 08 Nov 2018 11:24 AM PST


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.


See-through film rejects 70 percent of incoming solar heat



Posted: 08 Nov 2018 11:23 AM PST


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



Posted: 08 Nov 2018 11:23 AM PST


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



Posted: 08 Nov 2018 11:22 AM PST


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



Posted: 08 Nov 2018 11:22 AM PST


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.


Aging a flock of stars in the Wild Duck Cluster



Posted: 08 Nov 2018 10:41 AM PST


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.


Factors affecting turbulence scaling



Posted: 08 Nov 2018 08:17 AM PST


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



Posted: 08 Nov 2018 08:17 AM PST


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



Posted: 08 Nov 2018 08:00 AM PST


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



Posted: 08 Nov 2018 08:00 AM PST


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.


New ranking method could help hotels to maximize their revenue



Posted: 08 Nov 2018 08:00 AM PST


Researchers have devised a new method to rank hotels more accurately.


Scientists shuffle the deck to create materials with new quantum behaviors



Posted: 07 Nov 2018 02:29 PM PST


Layered transition metal dichalcogenides or TMDCs -- materials composed of metal nanolayers sandwiched between two other layers of chalcogens -- have become extremely attractive to the research community. Similar to graphene, they not only retain some of the unique properties of the bulk material, but also demonstrate direct-gap semiconducting behavior, excellent electrocatalytic activity and unique quantum phenomena such as charge density waves.


How beatboxers produce sound: Using real-time MRI to understand



Posted: 07 Nov 2018 02:29 PM PST


Beatboxing is a musical art form in which performers use their vocal tract to create percussive sounds, and a team of researchers is using real-time MRI to study the production of beatboxing sounds.


Watching nanoparticles: Researchers make movies of photochemistry in single nanoparticles



Posted: 07 Nov 2018 11:34 AM PST


Stanford researchers retooled an electron microscope to work with visible light and gas flow, making it possible to watch a photochemical reaction as it swept across a nanoparticle the size of a single cold virus.


When quantum particles swirl about, they still obey universal laws



Posted: 07 Nov 2018 10:38 AM PST


Remarkable rules have been detected in the apparent chaos of disequilibrium processes. Different systems behave identically in many ways, if they belong to the same 'universality class'. This means that experiments can be carried out with quantum systems that are easy to handle, in order to obtain precise information about other systems that cannot be directly studied in the experiment -- such as the Big Bang.
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