Mathematics and Computer Science at The University of Virginia's College at Wise
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Hacking and computer security. Read today's research news on hacking and protecting against codebreakers. New software, secure data sharing, and more.
Updated: 34 min 31 sec ago

Not so safe: Security software can put computers at risk

Wed, 05/04/2016 - 20:16
Is the antivirus program running on your computer really making your computers safer to use, say, for online banking? Is the parental control software you bought to keep your child off inappropriate sites transparent for the overall safety of your computer? New research shows security software might actually make online computing less safe.

Engineers create a better way to boil water, with industrial, electronics applications

Wed, 05/04/2016 - 19:20
Engineers have found a new way to induce and control boiling bubble formation, that may allow everything from industrial-sized boilers to advanced electronics to work better and last longer.

New mobile phone app for grassroots mapping

Wed, 05/04/2016 - 19:19
Academics have created an app that could help aid humanitarian rescue work in disaster-struck regions by using geographic data to map landscapes.

Supervised autonomous in vivo robotic surgery on soft tissues is feasible

Wed, 05/04/2016 - 19:18
Surgeons and scientists have demonstrated that supervised, autonomous robotic soft tissue surgery on a live subject (in vivo) in an open surgical setting is feasible and outperforms standard clinical techniques in a dynamic clinical environment, according to a new study.

Our brain uses statistics to calculate confidence, make decisions

Wed, 05/04/2016 - 18:21
The brain produces feelings of confidence that inform decisions the same way statistics pulls patterns out of noisy data. This feeling of confidence is central to decision making, and, despite ample evidence of human fallibility, the subjective feeling relies on objective calculations.

Phoney protection for passwords: Honeywords provide additional password security

Wed, 05/04/2016 - 18:13
Corporate data breaches seem to be on the rise, rarely a week passes without a company revealing that its database has been hacked and regrettably usernames, passwords, credit card details and its customers' personal information has been leaked on to the open internet. A new protection, nicknamed Phoney, may help.

Equilibrium modeling increases contact lens comfort

Wed, 05/04/2016 - 18:11
Researchers have designed an equilibrium model to demonstrate the elastic stresses and suction pressure distribution between a soft hydrogel contact lens and an eye. The model allows arbitrary (radially-symmetric) lens shapes, eye shapes, and thickness profiles, and illustrates the dependence of pressure distribution on lens and eye shape.

Stocks overvalued longer and more often than previously thought, says study

Wed, 05/04/2016 - 16:18
A study of the most commonly-traded US stocks over the last 13-years finds 13,000 'bubbles,' or periods when the stocks were overpriced.

Readability of online health information for patients with pancreatic cancer

Wed, 05/04/2016 - 16:18
Online information on pancreatic cancer overestimates the reading ability of the overall population and lacks accurate information about alternative therapy, according to a study.

Bats' flight technique could lead to better drones

Wed, 05/04/2016 - 16:14
Long-eared bats are assisted in flight by their ears and body, according to a new study. The recent findings improve researchers' understanding of the bats' flying technique and could be significant for the future development of drones, among other things.

Help is just a phone call away: Telephone CPR improves cardiac arrest outcomes

Wed, 05/04/2016 - 16:13
It is feasible to save lives from cardiac arrest through implementing and measuring this key intervention of Telephone-CPR instructions delivered by 9-1-1 dispatchers, a new report suggests.

Teledermatology linked to access to dermatologists for Medicaid enrollees in California

Wed, 05/04/2016 - 16:13
Primary care practices in a large California Medicaid managed care plan offering teledermatology had an increased fraction of patients who visited a dermatologist compared with other practices, according to an article.

Compact, efficient single photon source that operates at ambient temperatures on a chip

Wed, 05/04/2016 - 13:26
Scientists have demonstrated a compact, efficient single photon source that can operate on a chip at ambient temperatures. A highly directional single photon source could lead to compact, cheap, and efficient sources of quantum information bits for future quantum technological applications. The team is working on a new generation of devices to allow production of single photons straight from the chip into optical fibers, without any additional optical components.

Benefits of internet-based therapy in overcoming childbirth fear

Wed, 05/04/2016 - 12:49
Women expecting their first child but who are experiencing severe fear of childbirth (FOC) stand to dramatically benefit in reducing their anxieties with cognitive behavioural therapy (CBT) delivered via the internet, according to the results of new research.

New method points to compact, cheap and efficient sources of quantum information bits

Wed, 05/04/2016 - 12:48
Quantum information science and technology has emerged as a new paradigm for dramatically faster computation and secure communication in the 21st century. At the heart of any quantum system is the most basic building block, the quantum bit or qbit, which carries the quantum information that can be transferred and processed (this is the quantum analogue of the bit used in current information systems). The most promising carrier qbit for ultimately fast, long distance quantum information transfer is the photon, the quantum unit of light. 

Quantum logical operations realized with single photons

Tue, 05/03/2016 - 13:17
Scientists take an important step towards a logical quantum gate for photons.

What readers think about computer-generated texts

Tue, 05/03/2016 - 11:25
An experimental study has found that readers rate texts generated by algorithms more credible than texts written by real journalists.

New tech uses hardware, software to train dogs more efficiently

Mon, 05/02/2016 - 13:37
Researchers have developed and used a customized suite of technologies that allows a computer to train a dog autonomously, with the computer effectively responding to the dog based on the dog's body language

Risk aversion impedes innovation in information technology

Mon, 05/02/2016 - 13:37
Smartphones and tablets come from Asia and America, European industry is far behind. Causes are unfolded by a new study, e.g. risk aversion made the companies offer own data services at high prices instead of using open internet. Competitive pressure by Europe-wide granting of mobile telephone licenses or deregulation of the radio spectrum might improve the situation.

Could aluminum nitride be engineered to produce quantum bits?

Mon, 05/02/2016 - 12:41
The leading method for creating quantum bits, or qubits, currently involves exploiting the structural defects in diamonds. But researchers found that the same defect could be engineered in cheaper aluminum nitride. If confirmed by experiments, this could significantly reduce the cost of manufacturing quantum technologies.