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Categories: Mathematics: Puzzles, Mathematics: Statistics
Published Single-photon source paves the way for practical quantum encryption
(via sciencedaily.com) Researchers describe new high-purity single-photon source that can operate at room temperature. The source is an important step toward practical applications of quantum technology, such as highly secure communication based on quantum key distribution (QKD).
Published Active video games provide alternative workout
(via sciencedaily.com) Working out isn't known for being fun. But new active video and virtual reality games may help change that. Exergaming, or active video gaming, may be the perfect introduction to helping people be more active, according to new research.
Published Toward a quantum computer that calculates molecular energy
(via sciencedaily.com) Researchers have developed an algorithm that uses the most quantum bits to date to calculate ground state energy, the lowest-energy state in a quantum mechanical system. The discovery could make it easier to design new materials.
Published A first step towards quantum algorithms: Minimizing the guesswork of a quantum ensemble
(via sciencedaily.com) A quantum ensemble -- a set of quantum states with their corresponding probabilities -- is essential to the encoding of classical information for transmission over quantum channels. But receivers must be able to 'guess' the transmitted quantum state, incurring a cost called 'guesswork.' Recently, researchers have derived analytical solutions of the guesswork problem for when the ensemble is subject to a finite set of conditions. The results constitute a first step towards future algorithms for quantum software.
Published New insight into machine-learning error estimation
(via sciencedaily.com) Scientists are evaluating machine-learning models using transfer learning principles.
Published Computer games in the classroom: Educational success depends on the teacher
(via sciencedaily.com) Future teachers see educational potential in computer games, study shows. Teacher training should therefore address their potential in the classroom.
Published New data analysis tool uncovers important COVID-19 clues
(via sciencedaily.com) A new data analysis tool has revealed the specific immune cell types associated with increased risk of death from COVID-19.
Published Using artificial intelligence to find anomalies hiding in massive datasets
(via sciencedaily.com) Researchers have developed a computationally efficient method that could be used to identify anomalies in the U.S. power grid in real time. The novel technique augments a special type of machine-learning model with a powerful graph structure, and does not require any labeled data to train.
Published California's push for computer science education examined
(via sciencedaily.com) Despite California's computer science education policies, gender, racial and ethnic disparities persist among the high schools that offer these courses, the students enrolled in them and the faculty who teach them.
Published Navigation tools could be pointing drivers to the shortest route — but not the safest
(via sciencedaily.com) Time for a road trip. You punch the destination into your GPS and choose the suggested route. But is this shortest route the safest? Not necessarily, according to new findings.
Published Researchers use supercomputers for largest-ever turbulence simulations of its kind
(via sciencedaily.com) Despite being among the most researched topics on supercomputers, a fundamental understanding of the effects of turbulent motion on fluid flows still eludes scientists. A new approach aims to change that.
Published New computer vision system designed to analyse cells in microscopy videos
(via sciencedaily.com) Researchers have developed a system based on computer vision techniques that allows automatic analysis of biomedical videos captured by microscopy in order to characterize and describe the behavior of the cells that appear in the images.
Published Where mathematics and a social perspective meet data
(via sciencedaily.com) Community structure, including relationships between and within groups, is foundational to our understanding of the world around us.
Published Capturing hidden data for asymptomatic COVID-19 cases provides a better pandemic picture
(via sciencedaily.com) Asymptomatic COVID-19 cases are the bane of computer modelers' existences -- they throw off the modeling data to an unknown degree. A new approach explores using historic epidemic data from eight different countries to estimate the transmission rate and fraction of under-reported cases.
Published Spatial training with blocks and puzzles could unlock the UK's mathematical potential
(via sciencedaily.com) A sustained focus on spatial reasoning training could help children learn science, technology, engineering and mathematics.
Published Words are needed to think about numbers, study suggests
(via sciencedaily.com) Researchers have found a new relationship between counting ability of Tsimane' individuals and their ability to perform matching tasks that involve numbers up to about 25. The results suggest that in order to think about exact numbers, people need to have a word for that number.
Published Researchers use tiny magnetic swirls to generate true random numbers
(via sciencedaily.com) Skyrmions, tiny magnetic anomalies that arise in two-dimensional materials, can be used to generate true random numbers useful in cryptography and probabilistic computing.
Published The power of chaos: A robust and low-cost cryptosystem for the post-quantum era
(via sciencedaily.com) Scientists develop a chaos-based stream cipher that can withstand attacks from large-scale quantum computers.
Published New computational tool predicts cell fates and genetic perturbations
(via sciencedaily.com) Researchers have built a machine learning framework that can define the mathematical equations describing a cell's trajectory from one state to another, such as its development from a stem cell into one of several different types of mature cell. The framework, called dynamo, can also be used to figure out the underlying mechanisms -- the specific cocktail of gene activity -- driving changes in the cell.
Published A new approach to a $1 million mathematical enigma
(via sciencedaily.com) Numbers like pi, e and phi often turn up in unexpected places in science and mathematics. Pascal's triangle and the Fibonacci sequence also seem inexplicably widespread in nature. Then there's the Riemann zeta function, a deceptively straightforward function that has perplexed mathematicians since the 19th century. The most famous quandary, the Riemann hypothesis, is perhaps the greatest unsolved question in mathematics, with the Clay Mathematics Institute offering a $1 million prize for a correct proof.