The first study of why people struggle to solve statistical problems reveals a preference for complicated rather than simpler, more intuitive solutions -- which often leads to failure in solving the problem altogether. The researchers suggest this is due to unfavorable methods of teaching statistics in schools and universities, and highlight the serious consequences when applied to professional settings like court cases.
RUDN mathematicians analyzed the properties of gravitational waves in a generalized affine- metrical space (an algebraic construction operating the notions of a vector and a point) similarly to the properties of electromagnetic waves in Minkowski space-time. It turned out that there is the possibility of transmitting information with the help of nonmetricity waves and transferring it spatially without distortions. The discovery can help the scientists master new means of data transfer in space, e.g. between space stations.
By studying materials down to the atomic level, researchers at Chalmers University of Technology, Sweden, have found a way to make catalysts more efficient and environmentally friendly. The results have been published in Nature Communications. The methods can be used to improve many different types of catalysts.
The Order of Response Options on Online Questionnaires Impacts Respondents' Choice. This was the conclusion made by researchers from the HSE Centre of Sociology of Higher Education who analysed responses to rating scale questions made by more than 22,000 respondents. Their results showed that the first option from the list of alternatives is chosen most often. https://www.tandfonline.com/doi/full/10.1080/13645579.2018.1510660
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.
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.
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.
An EPFL scientist has developed a novel approach that boosts the chances of finding extraterrestrial intelligence in our galaxy. His method uses probability theory to calculate the possibility of detecting an extraterrestrial signal (if there is one) at a given distance from Earth.
Supersymmetry predicts a relationship between the fundamental particles fermions and bosons. An extended version of a pioneering model of non-relativistic supersymmetry -- the Nicolai supersymmetric fermion lattice model -- is studied. Previously, it was verified that supersymmetry of the model breaks down only when the adjustable constant g > g0 ? 4/π. A researcher at Kanazawa University removed the restriction on g and showed that the extended version of the Nicolai supersymmetric fermion lattice model breaks supersymmetry dynamically for any nonzero g.