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en-usPhys.org provides the latest news on mathematics, math, math science, mathematical science and math technology. The genius at Guinness and his statistical legacyThis St Patrick's Day, revellers around the world will crowd the streets seeking one of Ireland's national drinks: a pint of Guinness. But besides this tasty stout, one of the most fundamental and commonly used tools of science also has its origins at the Guinness brewery.
https://phys.org/news/2018-03-genius-guinness-statistical-legacy.html
Mathematics Fri, 16 Mar 2018 10:00:03 EDTnews440412625High number of adults unable to do basic mathematical tasksSuppose, a litre of cola costs US$3.15. If you buy one third of a litre of cola, how much would you pay?
https://phys.org/news/2018-03-high-adults-unable-basic-mathematical.html
Mathematics Thu, 15 Mar 2018 09:28:58 EDTnews440324930A model for autoignition in turbulent jetsJets are rapid streams of liquids or gases that forcefully shoot into a surrounding medium. When ignitable substances are involved, combustion—rapid chemical reactions that result in heat and light—can occur. Combustion in jets has many industrial and technological applications, and is thus of great interest to scientists and engineers.
https://phys.org/news/2018-03-autoignition-turbulent-jets.html
Mathematics Fri, 09 Mar 2018 13:37:31 EDTnews439825043New study takes the guesswork out of selecting and seeding teams for 'March Madness'New research has developed an automated approach for narrowing down and ranking the field of Division 1 college basketball teams from 351 to the 68 that would play in the annual "March Madness" basketball tournaments, watched by more than 80 million people each year.
https://phys.org/news/2018-03-guesswork-seeding-teams-madness.html
Mathematics Wed, 07 Mar 2018 14:51:15 EDTnews439656665Want to predict March Madness? New method identifies key statistics, outperforms others in accuracyUniversity of Illinois researchers have developed a method using causal inference for predicting upsets in the NCAA Men's Basketball Tournament that outperforms many other techniques. In addition to improved accuracy, the method stands out because it relies on publicly available data, making it reproducible and more accessible for others to use.
https://phys.org/news/2018-03-madness-method-key-statistics-outperforms.html
Mathematics Wed, 07 Mar 2018 11:00:23 EDTnews439642742Teachers, pedagogical skills, and the obstacle of intuitionWhen a task calls for intuitive knowledge, as in "subtracting means taking something away," its complexity often goes unnoticed. However, when intuitions are not mobilized – having to grasp, for instance, that subtracting means "finding the difference" – the task is considered difficult, and seemingly requires the use of specific educational strategies. Researchers at the University of Geneva (UNIGE), Switzerland, have demonstrated that teachers sometimes struggle to understand the difficulties encountered by pupils when attempting to solve apparently intuitive problems that are in fact very difficult. The findings suggest that teachers only use their pedagogical skills when a problem seems to mobilize counter-intuitive strategies. The results, which are published in the journal Educational Studies in Mathematics, stress the importance of training teachers to avoid the pitfalls of intuition so that the seemingly obvious does not get in the way of understanding the difficulties faced by students.
https://phys.org/news/2018-03-teachers-pedagogical-skills-obstacle-intuition.html
Mathematics Tue, 06 Mar 2018 10:12:09 EDTnews439553447Who makes the NCAA tournament? Researchers at the University of Illinois can helpThe field for NCAA Tournament will be announced March 11, and basketball fans want to know which teams will be a part of March Madness. Researchers at the University of Illinois may have discovered the secret to forecasting the field. They also make a case that the much-maligned RPI really is a dependable tool for tournament decision-makers.
https://phys.org/news/2018-03-ncaa-tournament-university-illinois.html
Mathematics Mon, 05 Mar 2018 15:14:00 EDTnews439485225Researchers engineer a winning strategy for the Rottnest Channel SwimTraining regularly and vigorously in the lead up to the Rottnest Channel Swim (this Saturday 24 February) may sound like the main key to success, but a group of researchers from The University of Western Australia has a strategy it says will maximise performance on the day.
https://phys.org/news/2018-02-strategy-rottnest-channel.html
Mathematics Tue, 20 Feb 2018 08:20:01 EDTnews438336958Mathematicians work to expand their new pictorial mathematical language into other areasA picture is worth 1,000 words, the saying goes, but a group of Harvard-based scientists is hoping that it may also be worth the same number of equations.
https://phys.org/news/2018-02-mathematicians-pictorial-mathematical-language-areas.html
Mathematics Tue, 06 Feb 2018 09:14:25 EDTnews437130848A newly discovered prime number makes its debutOn December 26, 2017, J. Pace, G. Woltman, S. Kurowski, A. Blosser, and their co-authors announced the discovery of a new prime number: 2⁷⁷²³²⁹¹⁷-1. It's an excellent opportunity to take a small tour through the wonderful world of prime numbers to see how this result was achieved and why it is so interesting.
https://phys.org/news/2018-01-newly-prime-debut.html
Mathematics Wed, 31 Jan 2018 08:50:03 EDTnews436610659Method to visualize hidden statistical structures in environmental dataPrediction of climate and weather relies on statistical models that can capture variability at one location over time as well as the relationship with other geographical locations. Sometimes future conditions at one location can be predicted from the current conditions at another location, while in other cases there may be no such correlation. The assumption of whether two sites are 'covariant' in one way or another can have profound implications for the accuracy of the statistical model, and so the choice of space-time covariance is crucial.
https://phys.org/news/2018-01-method-visualize-hidden-statistical-environmental.html
Mathematics Mon, 29 Jan 2018 09:03:08 EDTnews436438979Calculating tsunami's size and destructive force by exploiting high-speed acoustic gravity wavesMathematicians have devised a way of calculating the size of a tsunami and its destructive force well in advance of it making landfall by measuring fast-moving underwater sound waves, opening up the possibility of a real-time early warning system.
https://phys.org/news/2018-01-tsunamis.html
Mathematics Wed, 24 Jan 2018 09:45:14 EDTnews436009497Modern math sheds new light on long-standing debate about Viking-age Ireland conflictModern mathematical techniques - similar to those used to analyse social-networking websites - have allowed academics to shed new light on a centuries old debate surrounding the Viking age in Ireland and the famous battle of Clontarf in 1014.
https://phys.org/news/2018-01-modern-math-long-standing-debate-viking-age.html
Mathematics Tue, 23 Jan 2018 19:00:04 EDTnews435951955How to avoid a sucker bet – with a little help from mathsSitting in a bar, you start chatting to a man who issues you a challenge. He hands you five red and two black cards. After shuffling, you lay them on the bar, face down. He bets you that you cannot turn over three red cards. And to help you, he explains the odds.
https://phys.org/news/2018-01-sucker-maths.html
Mathematics Wed, 17 Jan 2018 09:59:39 EDTnews435405568The Fields Medal fallacy: Why this math prize should return to its rootsThe Fields Medal, whose origins date back to the 1930s, will be issued again this year in August to up to four of the world's most accomplished mathematicians under the age of 40. In a commentary for Nature, Michael Barany, a Society of Fellows post-doctoral fellow in history at Dartmouth, proposes that the Fields Medal return to its roots as a tool intended to shape the future of mathematics, rather than recognizing those who have already found the spotlight.
https://phys.org/news/2018-01-fields-medal-fallacy-math-prize.html
Mathematics Tue, 16 Jan 2018 12:44:00 EDTnews435329031Math can predict how cancer cells evolveApplied mathematics can be a powerful tool in helping predict the genesis and evolution of different types of cancers, a study from the University of Waterloo has found.
https://phys.org/news/2018-01-math-cancer-cells-evolve.html
Mathematics Tue, 16 Jan 2018 01:46:19 EDTnews435289563Why do we need to know about prime numbers with millions of digits?Prime numbers are more than just numbers that can only be divided by themselves and one. They are a mathematical mystery, the secrets of which mathematicians have been trying to uncover ever since Euclid proved that they have no end.
https://phys.org/news/2018-01-prime-millions-digits.html
Mathematics Fri, 12 Jan 2018 09:06:50 EDTnews434970399Vision, sensory and motor testing could predict best batters in baseballNew research from Duke Health suggests baseball scouts looking for a consistent, conscientious hitter may find clues not only in their performance on the field, but also in front of a computer screen.
https://phys.org/news/2018-01-vision-sensory-motor-batters-baseball.html
Mathematics Mon, 08 Jan 2018 05:00:02 EDTnews434605441GIMPS project discovers largest known prime numberThe Great Internet Mersenne Prime Search (GIMPS) has discovered the largest known prime number, 277,232,917-1, having 23,249,425 digits. A computer volunteered by Jonathan Pace made the find on December 26, 2017.
https://phys.org/news/2018-01-gimps-largest-prime.html
Mathematics Thu, 04 Jan 2018 09:30:38 EDTnews434280583How Facebook could stop a disease outbreakFacebook accounts and telephone records can be used to pinpoint the best individuals to vaccinate to stop a disease outbreak in its tracks, researchers said Wednesday.
https://phys.org/news/2018-01-facebook-disease-outbreak.html
Mathematics Wed, 03 Jan 2018 03:26:10 EDTnews434172363Maths for midges that pull 10gMidges move with ferocious randomness, frequently subjecting themselves to accelerations of more than 10g, well beyond the limit of fighter pilots, as they duck and dive in swarms that still retain an almost paradoxical cohesiveness despite blustery wind or powerful updrafts.
https://phys.org/news/2018-01-maths-midges-10g.html
Mathematics Tue, 02 Jan 2018 19:00:01 EDTnews434121548Randomness a key in spread of disease, other 'evil'An unfortunate church dinner more than 100 years ago did more than just spread typhoid fever to scores of Californians. It led theorists on a quest to understand why many diseases - including typhoid, measles, polio, malaria, even cancer - take so much longer to develop in some affected people than in others.
https://phys.org/news/2018-01-randomness-key-disease-evil.html
Mathematics Tue, 02 Jan 2018 12:50:29 EDTnews434119821Statistical test relates pathogen mutation to infectious disease progressionNucleic acid sequencing methods, which determine the order of nucleotides in DNA fragments, are rapidly progressing. These processes yield large quantities of sequence data—some of which is dynamic—that helps researchers understand how and why organisms function like they do. Sequencing also benefits epidemiological studies, such as the identification, diagnosis, and treatment of genetic and/or contagious diseases. Advanced sequencing technologies reveal valuable information about the time evolution of pathogen sequences. Because researchers can estimate how a mutation behaves under the pressure of natural selection, they are thus able to predict the impact of each mutation—in terms of survival and propagation—on the fitness of the pathogen in question. These predictions lend insight to infectious disease epistemology, pathogen evolution, and population dynamics.
https://phys.org/news/2017-12-statistical-pathogen-mutation-infectious-disease.html
Mathematics Thu, 28 Dec 2017 15:56:06 EDTnews433697657Scientists explain how the process of erosion forms unusual shapes and structuresScientists at Skolkovo Institute of Science and Technology have determined through mathematical modeling that the process of erosion optimizes the shapes of disintegrating materials.
https://phys.org/news/2017-12-scientists-erosion-unusual.html
Mathematics Thu, 28 Dec 2017 06:39:39 EDTnews433665569Mathematicians obtain new fundamental results in functional inequalitiesInvited professor of RUDN University Durvudkhan Suragan and a team of colleagues have obtained and established new types of functional inequalities. Hardy's inequalities are an important type of problem solving in mathematical physics. The results of the study were published in Advances in Mathematics.
https://phys.org/news/2017-12-mathematicians-fundamental-results-functional-inequalities.html
Mathematics Wed, 27 Dec 2017 07:49:09 EDTnews433583342Mathematical model reveals solution to sloshing coffeeAmericans drink an average of 3.1 cups of coffee per day; for many people, the popular beverage is a morning necessity. When carrying a liquid, common sense says to walk slowly and refrain from overfilling the container. But when commuters rush out the door with coffee in hand, chances are their hastiness causes some of the hot liquid to slosh out of the cup. The resulting spills, messes, and mild burns undoubtedly counteract coffee's savory benefits.
https://phys.org/news/2017-12-mathematical-reveals-solution-sloshing-coffee.html
Mathematics Thu, 21 Dec 2017 17:22:47 EDTnews433099357Can math predict what you'll do next?Good scientists are not only able to uncover patterns in the things they study, but to use this information to predict the future.
https://phys.org/news/2017-12-math-youll.html
Mathematics Fri, 15 Dec 2017 09:50:01 EDTnews432551300First mathematical network model for the Battle of the SexesWhy is it easier to bridge conflicting interests in one neighbourhood than in another? Social scientists think that the residents' social networks may play an important role in the answer to this question. Sociologists and theoretical physicists from Utrecht University have recently created a theoretical model for this complex problem. Using the popular game Battle of the Sexes, they have shown how different social network structures have different effects on overcoming conflicts of interest. The results of their study were recently published in Scientific Reports.
https://phys.org/news/2017-12-mathematical-network-sexes.html
Mathematics Fri, 15 Dec 2017 07:05:33 EDTnews432543920Mathematicians crack 44-year-old problemIsrael Institute of Technology and Alexandr Polyanskii from the Moscow Institute of Physics and Technology (MIPT) have proved László Fejes Tóth's zone conjecture. Formulated in 1973, it says that if a unit sphere is completely covered by several zones, their combined width is at least π. The proof, published in the journal Geometric and Functional Analysis, is important for discrete geometry and enables mathematicians to formulate new problems.
https://phys.org/news/2017-12-mathematicians-year-old-problem.html
Mathematics Wed, 13 Dec 2017 06:27:35 EDTnews432368730New statistical method links vast records, shows negative effect of Texas voter ID lawAs state voter identification (ID) laws across the country are being contested amid questions about the integrity of the voting process, researchers have developed a new statistical method that not only matches multiple records with precision, but can also identify the scope of discrimination when applied to voter ID laws. Recently featured in the American Statistical Association's journal Statistics and Public Policy, the research titled "ADGN: An Algorithm for Record Linkage Using Address, Date of Birth, Gender and Name" was applied to a 2011 Texas voter ID law (S.B. 14), which the United States Department of Justice investigated as possibly discriminatory.
https://phys.org/news/2017-12-statistical-method-links-vast-negative.html
Mathematics Mon, 11 Dec 2017 15:38:34 EDTnews432229109