Materials scientists at Duke University computationally predicted the electrical and optical properties of semiconductors made from extended organic molecules sandwiched by inorganic structures. These types of so-called layered 'hybrid organic-inorganic perovskites' -- or HOIPs -- are popular targets for light-based devices such as solar cells and light-emitting diodes (LEDs). The ability to build accurate models of these materials atom-by-atom will allow researchers to explore new material designs for next-generation devices.
How many jobs should an applicant consider before accepting the next job offer? Turns out the same decision-making process that goes into searching for a job also applies to hunters searching for prey, and the knowledge can be used in conservation.
MIT researchers have now devised a way to help robots navigate environments more like humans do. Their novel motion-planning model lets robots determine how to reach a goal by exploring the environment, observing other agents, and exploiting what they've learned before in similar situations. A paper describing the model was presented at this week's IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS).
A new DNA tool created by Michigan State University can accurately predict people's height, and more importantly, could potentially assess their risk for serious illnesses, such as heart disease and cancer.
Noise can induce spatial and temporal order in non-linear systems, which helps to detect and amplify weak external signals that are difficult to detect by conventional amplifiers, according to an international team composed of researchers from Germany, China and Spain in which the Universidad Carlos III de Madrid (UC3M) is a participant.
Extracting energy from the wind causes climatic impacts that are small compared to current projections of 21st century warming, but large compared to the effect of reducing US electricity emissions to zero with solar. Research publishing in Joule reports the most accurate modelling yet of how increasing wind power would affect climate, finding that large-scale wind power generation would warm the continental United States 0.24 degrees Celsius because wind turbines redistribute heat in the atmosphere.
A new study to be published in the INFORMS journal Marketing Science found that when managers respond to online reviews it's possible that those responses could actually stimulate additional reviewing activity and an increased number of negative reviews.
RIT scientists are simulating the collision of two supermassive black holes and the violent shocks in the electromagnetic spectrum. The light signals seen in the surrounding gas are harbingers of these monster collisions and can help scientists locate supermassive black hole binaries to better understand what is happening at the hearts of most galaxies.
A new model is bringing scientists a step closer to understanding the kinds of light signals produced when two supermassive black holes, which are millions to billions of times the mass of the Sun, spiral toward a collision. For the first time, a new computer simulation that fully incorporates the physical effects of Einstein's general theory of relativity shows that gas in such systems will glow predominantly in ultraviolet and X-ray light.
In a paper which could give sleepless night to cricket statisticians all over the world, researchers from Newcastle and Northumbria universities delivered their 'out' verdict to current methods after analysing the two most popular test cricket rankings. They found that rating batsmen by average score alone is not enough to determine who is best.