Mathematics and Computer Science at The University of Virginia's College at Wise
Syndicate content Computers & Math News -- ScienceDaily
Hacking and computer security. Read today's research news on hacking and protecting against codebreakers. New software, secure data sharing, and more.
Updated: 36 min 22 sec ago

Full-circle viewing: 360-degree electronic holographic display

Tue, 10/18/2016 - 18:14
A research team has described a novel tabletop display system that allows multiple viewers to simultaneously view a hologram showing a full 3-D image as they walk around the tabletop, giving complete 360-degree access.

Portable smartphone laboratory detects cancer at once

Tue, 10/18/2016 - 18:05
Researchers have developed a low-cost, portable laboratory on a smartphone that can analyze several samples at once to catch a cancer biomarker, producing lab quality results.

Typing while Skyping could compromise privacy

Tue, 10/18/2016 - 17:26
If you type on your desktop or laptop computer's keyboard while participating in a Skype call, you could be vulnerable to electronic eavesdropping, according to researchers.

Children involved in cyber-bullying much more likely to view web content containing self-harm and suicide, according to a new study

Tue, 10/18/2016 - 13:38
A new English study on the link between cyber-bullying and suicide has found that ten per cent of children are involved in cyber-bullying, as victims, perpetrators or both, and that they are much more likely to view web content containing self-harm and suicide. It calls for more web-based prevention and intervention strategies to tackle the issue.

Virtual experience gets the elderly to exercise

Tue, 10/18/2016 - 13:38
Virtual Reality can get the elderly in nursing homes to be happier about exercising. A new research project shows that the technology motivates older people in nursing homes to get moving.

Scientists develop a semiconductor nanocomposite material that moves in response to light

Mon, 10/17/2016 - 19:07
A revolutionary, light-activated semiconductor nanocomposite material has been created that can be used in a variety of applications, including microscopic actuators and grippers for surgical robots, light-powered micro-mirrors for optical telecommunications systems, and more efficient solar cells and photodetectors.

'Robomussels' used to monitor climate change

Mon, 10/17/2016 - 19:04
Tiny robots have been helping researchers study how cli­mate change affects bio­di­ver­sity. These “robo­mus­sels” have the shape, size, and color of actual mus­sels, with minia­ture built-??in sen­sors that track tem­per­a­tures inside the mussel beds.

Here's how young people decide when they're drunk 'enough,' according to math

Mon, 10/17/2016 - 18:05
Young people decide whether they've had enough to drink the same way the cruise control on a car "decides" whether to accelerate or hit the brakes, explains a unique research project that aims to analyze drinking behavior the way engineers might analyze a mechanical system.

Study applies math to describe tumor growth

Mon, 10/17/2016 - 16:38
A new study mathematically explains how tumors induce the growth of blood vessels. The study maintains that the tips of the blood vessels expand like a soliton, a solitary wave similar to a tsunami.

Drones help write new history of Caribbean

Mon, 10/17/2016 - 16:37
Drones are proving to be a good means of mapping human-made changes in the landscape. Geophysicists are experimenting with drones in inaccessible areas of the Caribbean.

Scientist creates most efficient quantum cascade laser ever

Mon, 10/17/2016 - 15:20
The most efficient quantum cascade laser ever designed have now been created by researchers who have done it in a way that makes the lasers easier to manufacture. Quantum cascade lasers, or QCLs, are tiny -- smaller than a grain of rice -- but they pack a punch. Compared to traditional lasers, QCLs offer higher power output and can be tuned to a wide range of infrared wavelengths. They can also be used at room temperature without the need for bulky cooling systems.

Repurposed sensor enables smartwatch to detect finger taps and other bio-acoustic signals

Mon, 10/17/2016 - 15:12
Thanks to new functionality, smartwatches can recognize objects and activities by monitoring vibrations that occur when people hold objects or use tools. This new technology could even be used to help tune a guitar, say developers.

'DarkLight' enables visible light communication in the dark

Mon, 10/17/2016 - 14:48
With the rise in wearables such as smartwatches and fitness trackers that rely on smart sensors, and the continued popularity of smartphones, smart devices are taking our country by storm. Wireless data for such devices is typically beamed through Wi-Fi or Bluetooth, yet, the new wireless communication technology of "visible light communication (VLC)," has emerged as a new option albeit with limitations due to the challenges it faces in practice, such as being easily blocked or not being able to sustain transmission when light is off. Through a new project called "DarkLight," researchers have developed and demonstrated for the first-time, how visible light can be used to transmit data even when the light appears dark or off.

Wearable tattoo sends alcohol levels to your cell phone

Mon, 10/17/2016 - 14:32
Engineers have developed a small device, worn on the skin, that detects alcohol levels in perspiration and sends the information to the users smart phone in just 8 minutes. It was designed as a convenient method for individuals to monitor their alcohol intake.

'That pizza was #Delish!' What do tweets say about our health?

Mon, 10/17/2016 - 12:42
"Coffee" was the most tweeted food in the continental U.S. between mid-2014 to mid-2015 followed by "beer" then "pizza". Besides hinting at which foods are popular, scientists are finding that tweets reveal something about our health. Communities that tweeted more often about physical activities, or expressed positive sentiments about healthy foods, had better overall health.

Computers should be named on patents as inventors, for creativity to flourish

Mon, 10/17/2016 - 12:39
New research is calling for inventions by computers to be legally granted patents. The research states that the rapid increase in computer power is posing new challenges when it comes to patenting an invention. Artificial intelligence is playing an ever larger role in innovation -- with major players such as IBM, Pfizer and Google investing heavily in creative computing -- but current patent law does not recognize computers as inventors.

Diamonds aren't forever: Team creates first quantum computer bridge

Sat, 10/15/2016 - 01:48
For the first time on a single chip, scientists have demonstrated all the components needed to create a quantum bridge to link quantum computers together.

Physicists pass spin information through a superconductor

Sat, 10/15/2016 - 01:45
Researchers have made a discovery that could lay the foundation for quantum superconducting devices. Their breakthrough solves one the main challenges to quantum computing: how to transmit spin information through superconducting materials.

Wristwhirl: Smartwatch prototype using wrist as a joystick

Fri, 10/14/2016 - 19:08
Checking email, tracking fitness, and listening to music, are just a few things that a smartwatch can do but what if your hands aren't free (i.e. carrying groceries or holding a bus handle)? A research team has come up with a solution by developing WristWhirl-- a smartwatch prototype that uses the wrist wearing the watch as an always-available joystick to perform common touch screen gestures with one-handed continuous input.

Bendable electronic paper displays whole color range

Fri, 10/14/2016 - 13:21
Less than a micrometer thin, bendable and giving all the colors that a regular LED display does, it still needs ten times less energy than a Kindle tablet. Sharing such a description, researchers announce that they have developed the basis for a new electronic "paper".