#New imaging technique could make brain tumor removal safer, more effective Brain surgery is famously difficult for good reason:
#Access to electricity and artificial light shortened time of our sleep Science knows that nowadays people tend to sleep less than they used to before modern times.
But now scientists from University of Washington have conducted the study that links artificial light to our contemporary sleep deprivation.
Results of this research for the first time suggest that access to artificial light and electricity has shortened the amount of sleep humans get each night.
if such simple factor of electricity and artificial light could lead to a smaller amount of sleep during an average week in both the summer and winter.
and can turn on the light at any desired time, while another relies only on natural sunlight.
Researchers found that it was due to people who had the option to turn on lights and go to bed later.
However, artificial light does not just push sleep-wake cycles back, it can also disrupt our circadian clock.
and artificial light affects our sleep habits l
#Smart insulin patch could replace painful injections for diabetes This is the mart insulin patch, developed by researchers in the joint UNC/NC State Biomedical engineering Department.
and the new findings suggest that parasite calcineurin should be a focus for the development of new antimalarial drugs. ur study has great biological and medical significance, particularly in light of the huge disease burden of malaria,
The friction was strong enough for the electrodes to harvest enough energy to power the lights,
or two different objects, based on the intensity of scattered light. The scattered light is detected by a common photodiode,
and the signals are digitized, analyzed and used to calculate the positions of the samples. Crucially, the JILA team verified the stability of the technique by using the two lasers to make two separate, independent measurements of a single sample.
the first six patients showed improvement in their vision in dim light and two of the six were able to read more lines on an eye chart.
#Say It With Light: Using LEDS to Move Data Faster It like using fiber optics to communicate only without the fiber.
Imagine connecting to the Internet through the same room lights that brighten your day. A University of Virginia engineering professor and her former graduate student are already there.
and Mohammad Noshad, now a postdoctoral fellow in the Electrical engineering Department at Harvard university, have devised a way of using light waves from light-emitting diode fixtures to carry signals to wireless devices at 300 megabits per second from each light.
so less sharing of the wireless network. e developed a modulation algorithm that increases the throughput of data in visible light communications,
Their breakthrough means that data can be transmitted faster with light waves using no more energy than is required already to run the lights.
VLNCOMM, for Visible light Network Communications, to which Brandt-Pearce is a consultant. The Charlottesville-based firm is developing a prototype for potential investors a desk lamp that provides an Internet connection through light
getting several lights to cooperate to send data to many users in a room, making sure the lighting is good
Visible light communications offer a compact, dual-use, energy saving solution and can provide a high-speed secure network connection for a large number of users.
Visible light communications has the potential to significantly increase the speed of Internet connection in multiuser indoor environments due to the broad bandwidth of the visible light,
and Applied science for 22 years, said the visible light communications project is one of about four or five on
when exposed to light, mimics many of the properties of elastic tissue, such as skin and blood vessels.
This elastic hydrogel is formed by using a light-activated polypeptide. When exposed to light, strong bonds form between the molecules of the gel,
providing mechanical stability without the need for any chemical modifiers to be added to the material.
They can shed new light on the fundamental processes occurring in the nanoscale biological pores that funnel essential ingredients into cells. e also developed some key data processing methods
as in sonar applications. ecause our membrane is so light, it has an extremely wide frequency response
#Surfing a wake of light When a duck paddles across a pond or a supersonic plane flies through the sky, it leaves a wake in its path.
It is possible for something to move faster than the phase velocity of light in a medium
wakes produced as electrical charges travel through liquids faster than the phase velocity of light, emitting a glowing blue wake.
For the first time, Harvard researchers have created similar wakes of light-like waves moving on a metallic surface, called surface plasmons,
and harness the power of light on the nanoscale. The creation and control of surface plasmon wakes could lead to new types of plasmonic couplers
The team discovered that the angle of incidence of the light shining onto the metamaterial provides an additional measure of control
and using polarized light can even reverse the direction of the wake relative to the running wave like a wake traveling in the opposite direction of a boat. eing able to control
and manipulate light at scales much smaller than the wavelength of the light is said very difficult
#Futuristic brain probe allows for wireless control of neurons Scientists used soft materials to create a brain implant a tenth the width of a human hair that can wirelessly control neurons with lights and drugs.
and shine lights on neurons deep inside the brains of mice. The revolutionary device is described online in the journal Cell.
and delivering lights through fiber optic cables. Both options require surgery that can damage parts of the brain
and lights. e used powerful nanomanufacturing strategies to fabricate an implant that lets us penetrate deep inside the brain with minimal damage,
and exposed it to ultraviolet light, which is found in the sun rays and breaks down many materials.
Under the leadership of the Max Planck researchers, a new study has now been shed able to some light on key elements of the mechanism that leads to the release of nitrogen monoxide
But first engineers must build a light source that can be turned on and off that rapidly.
Duke university researchers are now one step closer to such a light source. In a new study, a team from the Pratt School of engineering pushed semiconductor quantum dots to emit light at more than 90 gigahertz.
These oscillations create their own light, which reacts again with the free electrons. Energy trapped on the surface of the nanocube in this fashion is called a plasmon.
No one has been able to create a laser that beams white light. Researchers at Arizona State university have solved the puzzle.
The technological advance puts lasers one step closer to being a mainstream light source and potential replacement or alternative to light emitting diodes (LEDS.
Another important application could be in the future of visible light communication in which the same room lighting systems could be used for both illumination and communication.
The technology under development is called Li-Fi for light-based wireless communication, as opposed to the more prevailing Wi-fi using radio waves.
because the light from a typical laser contains exactly one color, a specific wavelength of the electromagnetic spectrum, rather than a broad-range of different wavelengths.
White light is viewed typically as a complete mixture of all of the wavelengths of the visible spectrum, said Ning,
a blue LED is coated with phosphor materials to convert a portion of the blue light to green, yellow and red light.
This mixture of colored light will be perceived by humans as white light and can therefore be used for general illumination.
Sandia National Labs in 2011 produced high-quality white light from four separate large lasers. The researchers showed that the human eye is as comfortable with white light generated by diode lasers as with that produced by LEDS,
inspiring others to advance the technology. hile this pioneering proof-of-concept demonstration is impressive,
The most preferred light emitting material for semiconductors is indium gallium nitride though other materials such as cadmium sulfide and cadmium selenide also are used for emitting visible colors.
like schizophrenia or Parkinson disease (see racking the Brain Codesand hining a Light on Madness.
when the phone is exposed to artificial or natural light, it captures the light and converts it to an electric current.
A connection to the gadget battery would enable the layer to send power directly to it.
But while De Broca says the energy WYSIPS Crystal can produce depends on the kind of light it exposed tontense natural light will work better than diffuse indoor lightingn its current form it can boost battery life by only about 10 to 15 percent. t
its face dominated by a large display and a receiver module for phone calls that includes a light and proximity sensor on the front.
They also determined the nonlinear optical response of the nanosheets to a pulsed laser by measuring the amount of light that is transmitted.
It turns out that the amount of light black phosphorus absorbs decreases as the intensity rises, a property known as saturable absorption.
"These are very fast electrons that behave like unidirectional light beams and can be used for new types of quantum computing."
a new light-activated Cas9 nuclease could offer researchers greater spatial and temporal control over the RNA-guided nuclease activity,
The team has used also photoactivatable technology to develop a light-activated CRISPR-based transcription system to target specific genes for expression.
using its Magnet proteins to create a photoactivatable Cas9 nuclease (pacas9) for light-controlled genome editing. he existing Cas9 does not allow to modify genome of a small subset of cells in tissue, such as neurons in the brain,
When irradiated with blue light, the Magnets come together, bringing with them the split Cas9 fragments, which then merge to reconstitute the nuclease RNA-guided activity.
when the light is turned off, the pacas9 nuclease splits again, and nuclease activity is halted. uch an on/off-switching property of pacas9 is the most important breakthrough previously unattainable,
and highlights the versatility of the system. y impression is that the light-activated system using the magnet approach works well,
there may be specific developmental studies where ultra-precise activation of gene editing such as in a specific developmental domain via a precisely directed beam of light could prove to be a very elegant approach.
a glass slide with the letter P drawn on in marker, between it and the microscope light source.
#Synchrotron shines a light on future medical devices According to the international team, this technique could be important in the development of devices that are highly sensitive to magnetic fields,
Berlin/Dresden University of Technology in collaboration with research partners from Advanced Light source/Lawrence Berkeley National Laboratory,
Using the X-ray microscope at the Advanced Light source and the X-ray Photoemission Electron microscopy (XPEEM) beamline at HZB BESSY II,
These pulses then stimulate the retina remaining cells, resulting in the corresponding perception of patterns of light in the brain.
The research could apparently aid the future development of light sources. Princeton university provides further details about the study's promising outlook for quantum computing here.
#World's first malaria vaccine gets green light from European regulatory agency The world's first malaria vaccine has cleared its last major hurdle on its way to being approved for real-world use.
With this"green light,"the World health organization will decide later this year whether or not to recommend the shot for use.
but white lasers could serve as a potential alternative light source both in people's homes and in the screens of their electronics.
a developing technology that uses multiple colors of light to enable high-speed wireless internet access. Currently, LEDS are being used to develop Li-Fi technology,
lasers have been able to emit every single wavelength of light except for white. The problem is that typical lasers only beam one specific wavelength of light at a time.
To create white the ASU researchers manufactured three thin semiconductor lasers each as thick as one-thousandth of a human hair
Whereas, the latter use infrared tissue spectroscopy, wherein the sensor measures the intensity of light absorbed by alcohol, to zero in on the blood alcohol level.
Despite all this tech, the glasses are actually pretty light and slim. It's sort of hard to tell that they're even smart glasses point that seems to have been lost on Google glass.
Alcohol levels would be measured under the skin's surface on a touchpad with an infrared light scanner.
when put under infrared light beams, which will be placed in the car. The sensors will act as a tracking system to measure the ratio of carbon dioxide molecules to ethanol molecules produced by the driver.
Infrared light will shine on the driver's skin upon touching a sensor and a portion of this light will reflect back to a system in the touch pad.
The reflection can tell the system what chemical properties are present in the skin, including ethanol levels in the tissue.
the laser treated metal surfaces can also absorb heat and light. The potential applications for anti-icing surfaces involve protection of aerofoils, protection of aerofoils, pipes of air conditioners and refrigerators, radar or telecommunication antennas,
so that nanoscale structures can be seen with an ordinary light microscope. This new technique uses commonly available chemicals to help experts increase the size of tissue samples effortlessly.
that not only reflects 97%of light, but also radiates heat into the cold depths of the universe and
and also reflected 97%of the light that fell on it. f you cover significant parts of the roof with this mirror,
Visible light and infrared lights pass heat through the building surfaces. To make things cool again, engineers believe that the surfaces should have ways in
it releases heat at a specific wavelength of infrared light that passes easily through the atmosphere and out into space.
it radiates the heat as infrared light of 10 micrometer wavelength. Since nothing in the atmosphere can absorb that,
The ultraviolet light from the sun rays are used to kill biological contaminants in the water. While similar desalination technologies have already been discovered,
Well a frequency comb separates light pulses into discrete, equally spaced"tine-like"elements. Thus information traveling through a fiber optic cable is discrete
the lights were less flashy, and coffee was the beverage of choice. In previous Surge demo days
According to the publication, the signatories are appealing to government officials to protect privacy rights in light of companies adding increased security and encryption to mobile devices in a post-Snowden era.
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