Computer and Mathematics News. From quantum computers to the value of statistics, read the latest math and computer news. Updated daily.
Updated: 29 min 48 sec ago
Researchers have used a unique optical metamaterial with zero-index refraction to generate phase mismatch–free nonlinear light, an important step towards efficient light generation for future quantum networks and light sources.
Quantum entanglement is one of the more bizarre theories to come out of the study of quantum mechanics -- so strange, in fact, that Albert Einstein famously referred to it as "spooky action at a distance."
The images people share on social media -- photos of favorite products and places, or of themselves at bars, sporting events and weddings -- could be valuable to marketers assessing their customers' "top-of-mind" attitudes toward a brand. Researchers have taken a first step toward this capability in a new study in which they analyzed five million such images.
Most online dating users don’t choose a potential mate the same way they choose a movie to watch, but new research suggests they’d be more amorously successful if that’s how their dating service operated.
Thread-like semiconductor structures called nanowires, so thin that they are effectively one-dimensional, show potential as lasers for applications in computing, communications, and sensing. Scientists have demonstrated laser action in semiconductor nanowires that emit light at technologically useful wavelengths and operate at room temperature. They now have documented this breakthrough and have disclosed further results showing enhanced optical and electronic performance.
With every heartbeat, the blood is sent to all our peripheral tissues, generating changes in pulsatile perfusion. Using these pulsatile changes as a source of information, researchers have developed a new method of 2D mapping of microcirculation, called BPI (Blood Pulsation Imaging). The aim is to use the pulsatile vascular changes detected with BPI for diagnostic purposes.
A new online platform predicts how the human immune system reacts to foreign substances.
Half-Heusler compounds are especially suited for manufacturing thermoelectric modules. Waste heat can be converted to electricity with them. Researchers have manufactured the alloys for the first time in kilogram quantities.
Jogging keeps you fit and is healthy. However, athletes that start training can overdo it and easily pull and tear ligaments. A new high-tech running shoe will evaluate running form in real time and thereby counter these injuries in future.
Increasingly small robots can carry out their functions even inside the human body. No, this isn’t a sci-fi dream. The technology is almost ready. However there is still one condition they must meet to be effective: these devices need to have the same “softness” and flexibility as biological tissues.
Sometimes the cure can be worse than the disease. Pharmaceutical drugs are known for their potential side effects, and now researchers have updated an extensive toxicology database so that it can be used to track information about therapeutic drugs and their unintentional toxic effects.
When it comes to choosing the best college football teams in the nation or the best companies to invest in, even the experts tend to fall for the same types of biased thinking that the rest of us do.
In all but the shortest supply chains, food travels through wholesale distribution centers on its way from farm to consumer, and the location of these distributors can have a big impact on the efficiency of a food system. Now, a new mathematical model can help business owners and policy makers determine the optimal locations for such distributors.
A new study shows that a neurologist in an office thousands of miles away can deliver effective specialized care to people with Parkinson's disease. For individuals with the condition -- many of whom have never seen a specialist -- these "virtual house calls" could allow them to live independently while effectively manage the symptoms of the disease.
It turns out that the way to keep track of your many passwords to online accounts is the same as how to get to Carnegie Hall -- practice, practice, practice. So researchers have devised a scheme that enables users to create 100 or more passwords by remembering -- and regularly rehearsing -- a small number of one-sentence stories. The story sentences become the basis for password fragments that are randomly combined to create unique, strong passwords for multiple accounts.
A new study shows that students grasp the unimaginable emptiness of space more effectively when they use iPads to explore 3-D simulations of the universe, compared to traditional classroom instruction.
A tiny capsule that can carry out a chemical analysis of the contents of one's stomach could identify the presence of so-called "occult" blood at very low levels. The data is automatically broadcast to an external monitoring device for detection of early stage stomach cancer by one's physician.
Data centers housing thousands of computers have enabled the proliferation of new cloud-based services. One problem associated with data centers, however, is their aggregate electricity consumption. The servers in the data centers use electricity and generate heat, which can endanger the reliability of the services provided unless sufficient cooling is arranged.
Two scientists have shown how to achieve a dramatic increase in the capacity of optical fibers. Their simple, innovative solution, generating perfect "Nyquist sinc pulses," reduces the amount of space required between the pulses of light that transport data. The breakthrough could increase the throughput of data in telecommunications systems by a factor of 10.
A pan-European initiative called SMARCOS focuses on developing technology based on internet sharing between devices. The technology allows the interfaces of various smart devices to follow consumers' actions and react immediately to their needs. The smart coaching service, for example, can use all the user's digital devices for motivating his/her behavior towards the goals or for reminding medication.