Do we have free choice or are our decisions predetermined? Is physical reality local, or does what we do here and now have an immediate influence on events elsewhere? The answers to these questions are sought by physicists in the Bell inequalities. It turns out that free choice and local realism can be skilfully measured and compared. The results obtained reveal surprising relationships of a fundamental and universal nature, going far beyond quantum mechanics itself.
Network scientists from Beijing Normal University and Bar-Ilan University address the effect of team freshness on the originality and multidisciplinary impact of produced work, by systematically investigating prior collaboration relations between team members. Among other things their study, published in Nature Human Behaviour, reveals that papers of fresher teams are significantly more effective than those of older teams in creating studies of higher originality and greater multidisciplinary impact.
St. Petersburg, like other cities in the Russian Federation, is actively participating in the establishment of the "Smart City" program, which will provide new services for residents of the megalopolis, increasing the safety of citizens. Digital services are essential for such a system. Due to the Internet of Things (IoT) systems, the environment can adapt to the needs of humanity on its own accord. Cybersecurity threats are especially dangerous for such infrastructure.
Who made more accurate predictions about the course of the COVID-19 pandemic - experts or the public? A study from the University of Cambridge has found that experts such as epidemiologists and statisticians made far more accurate predictions than the public, but both groups substantially underestimated the true extent of the pandemic.
The evolving periodicity of the brightness of certain types of stars can now be described mathematically.
Large-scale analysis of pedestrian data from three European cities examines how building density and street design influence pedestrian behavior.
Families want peace of mind that their elderly relatives are living well, and are maintaining a relatively active lifestyle. Although we can call them to check in on them, it is often not enough. To help overcome these problems, the researchers, from Lancaster University, working with technology company Howz have devised a new way of interpreting statistical data from smart home sensors.
A study by a research team from Nanyang Technological University, Singapore (NTU Singapore) and China's first digital-only bank WeBank has found that security, service quality and system quality are the most important factors for customers who use mobile banking.
After solving the elusive "Diophantine equation" for 42, MIT and U of Bristol mathematicians have discovered a new solution for 3.
First grade maths is the foundation for 12th grade maths - and for technical and business careers. Teachers can see which first graders are struggling, and where to help them, with an accurate, evidence-based, diagnostic test. The test can be helpful for teachers after Covid-19 school reopening, especially in large, multilingual classrooms. A 15-week "maths boost" intervention program linked to the test, provides teachers good instructional material to support children in an efficient way.