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Texting and tweeting in the classroom: How do they impact student learning?

Thu, 06/04/2015 - 18:15
Mobile devices are ubiquitous—including in the college classroom. Instructors across disciplines now compete with a host of electronic stimuli for students’ attention. But to what extent is messaging interfering with student learning? Can students concentrate with the same intensity while exchanging texts with their friends and family? A new study evaluates how different types of messaging impact student retention of classroom material.

Social networking against cancer

Thu, 06/04/2015 - 14:41
New research shows how social network analysis can be used to understand and identify the biomarkers in our bodies for diseases, including different types of cancer.

Simulation helps to prepare for the consequences of natural disasters

Thu, 06/04/2015 - 12:44
A simulation tool has been developed to help users prepare for unexpected catastrophes and natural disasters. A pilot case in Finland focused on winter storms and the resulting power cuts and evacuations.

Visualizing the 'matrix': App provides insight into the quantum world of coupled nuclear spins

Wed, 06/03/2015 - 16:45
Magnetic resonance tomography images are an important diagnostic tool. The achievable contrast depends on how well the nuclear spins that form the basis of the imaging signals can be controlled. Mathematically, the properties of nuclear spins are described by special matrices. Now a team of researchers has developed an intuitive graphical representation of the information contained in these matrices for coupled spins in arbitrary quantum states.

Helping robots handle uncertainty

Wed, 06/03/2015 - 16:44
Decentralized partially observable Markov decision processes are a way to model autonomous robots' behavior in circumstances where neither their communication with each other nor their judgments about the outside world are perfect. Now researchers note that an algorithm for planning robot collaborations makes complex models practical.

Recovering a rare metal from LCDs to avoid depleting key resource

Wed, 06/03/2015 - 16:44
Life without bright screens on our smart phones and TVs is hard to imagine. But in 20 years, one of the essential components of the liquid-crystal displays, or LCDs, that make many of our gadgets possible could disappear.

Design innovations are blowing in the wind

Wed, 06/03/2015 - 16:41
Researchers are using state-of-the-art modelling techniques to study the effects of wind on cities, paving the way for design innovations in building, energy harvesting and drone technology.

World's smallest spirals could guard against identity theft

Wed, 06/03/2015 - 13:37
Researchers have made the world's smallest spirals and found they have unique optical properties that are nearly impossible to counterfeit if they were added to identity cards, currency and other objects.

Cyberbullying less emotionally harmful to kids than traditional in-person harassment, study finds

Wed, 06/03/2015 - 13:37
Contrary to popular belief, cyberbullying that starts and stays online is no more emotionally harmful to youngsters than harassment that only occurs in-person and may actually be less disturbing because it's likelier to be of shorter duration and not involve significant power imbalances, according to a study.

Hippocampus: In search of memory storage

Wed, 06/03/2015 - 12:32
The hippocampus plays a crucial role in memory formation. However, it is not yet fully understood in what way that brain structure's individual regions are involved in the formation of memories. Neuroscientists have recreated this process with the aid of computer simulations. Their findings challenge the model of memory forming in the hippocampus established to date.

Brain's reaction to certain words could replace passwords

Tue, 06/02/2015 - 20:06
You might not need to remember those complicated e-mail and bank account passwords for much longer. According to a new study, the way your brain responds to certain words could be used to replace passwords.

Saving money and the environment with 3-D printing

Tue, 06/02/2015 - 17:07
The environmental effects of 3-D printing metal aircraft parts has been examined by scientists. They found the method could reduce an airplane's weight by 4 to 7 percent. Conventional manufacturing methods tend to be inefficient and wasteful, the researchers noted.

Privacy notices online probably don't match your expectations

Tue, 06/02/2015 - 17:06
Consumers often complain that online companies violate their privacy -- but the problem may be with the consumers themselves. According to a new study, there can be a big discrepancy between what consumers believe that online privacy policies promise and what those policies do in fact promise. Many consumers assume policy protections that were never there.

Study questions effectiveness of computerized clinical decision support systems

Tue, 06/02/2015 - 16:57
An analysis of the use of computerized clinical decision support systems regarding orders for advanced diagnostic imaging found that the systems failed to identify relevant appropriateness criteria for the majority of orders.

Teens turn to Internet to cope with health challenges

Tue, 06/02/2015 - 11:57
While most teens tap online sources to learn more about puberty, drugs, sex, depression and other issues, a surprising 88 percent said they do not feel comfortable sharing their health concerns with Facebook friends or on other social networking sites, according to a study.

Several popular smart phones fail to reach normal Internet speeds

Tue, 06/02/2015 - 11:55
A lot of users are using outdated mobile devices that fail to reach adequate speeds on mobile networks. This is shown by measurements shared by the users of Netradar, a free mobile application that measures mobile connections and devices, developed and run globally from Finland.

Smart watches, apps can make life easier for ADHD children

Tue, 06/02/2015 - 11:55
Researchers believe that children with autism or ADHD can benefit from technologies originally developed for the elderly. Children and young people with ADHD can find it difficult to keep appointments and easy to forget what they have to bring with them in different situations. Their lives can be made easier if they use a smart watch or a calendar displayed on a mobile phone or tablet. Such aids may use a combination of pictures, sounds or text to remind them about where they have to be and when, and the things they have to do.

Small, discreet data glasses for everyday use

Tue, 06/02/2015 - 11:49
Data glasses tend to be chunky, unstylish objects, so it's no wonder they haven't caught on among general consumers. Researchers have now developed a technology that allows the "specs" to be made in small, unobtrusive designs. The new glasses also correct for farsightedness.

New electronics? Black Phosphorus Reveals Its Secrets

Tue, 06/02/2015 - 11:47
Scientists have succeeded in preventing two-dimensional layers of black phosphorus from oxidating. In so doing, they have opened the doors to exploiting their striking properties in a number of electronic and optoelectronic devices.

Inexperienced investors should take advantage of 'auto-pilot investing'

Mon, 06/01/2015 - 21:29
Use of target-date is a positive trend that will help inexperienced investors invest safely without risking significant losses based on their lack of knowledge, an expert writes. Target-date funds, which were endorsed by Congress in the Pension Protection Act of 2006, are also known as life-cycle funds. This means that TDFs change their asset mix of stocks and bonds based on the age of the investor.