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en-usPhys.org provides the latest news on mathematics, math, math science, mathematical science and math technology. Network theory links behavioral information flow with contained epidemic outbreaksOver the last two decades, large-scale outbreaks of infectious diseases have resulted in high levels of morbidity, mortality, and overall economic burden for affected regions. As complex networks become increasingly popular tools of study, researchers are applying network theory to the field of epidemiology. Due to the plethora of disease-related data available from various media outlets, an individual's behavioral response to and communication of an epidemic depends on the pattern of information flow in a separate yet related network. As a result, mathematical models of humans' reactions to disease outbreaks are important tools in epidemiological analysis.
https://phys.org/news/2018-06-network-theory-links-behavioral-epidemic.html
Mathematics Thu, 14 Jun 2018 09:00:03 EDTnews448183608Using mathematical approaches to optimally manage public debtWhile most countries around the world rely on debt to finance their government and economy, keeping this debt under control is a financial imperative. Large government debt negatively impacts long-term economic growth. Increase in a nation's debt results in lower private investment, which leads to diminishing growth and wages in the long term. A high amount of debt can be detrimental even in the absence of a financial crisis.
https://phys.org/news/2018-06-mathematical-approaches-optimally-debt.html
Mathematics Thu, 07 Jun 2018 10:27:59 EDTnews447586062A new method for solving a series of global optimization problems developedTo create highly effective technical systems and technological processes, in addition to the use of new principles, new materials, new physical effects and other solutions that determine the overall structure of the object being created, researchers have to choose the best combination of the object's parameters (geometric dimensions, electrical characteristics, etc.), since any changes in the parameters with a fixed overall object structure can significantly impact the effectiveness indicators.
https://phys.org/news/2018-06-method-series-global-optimization-problems.html
Mathematics Thu, 07 Jun 2018 07:43:42 EDTnews447576211Data 'hashing' improves estimate of the number of victims in databasesResearchers from Rice University and Duke University are using the tools of statistics and data science in collaboration with Human Rights Data Analysis Group (HRDAG) to accurately and efficiently estimate the number of identified victims killed in the Syrian civil war.
https://phys.org/news/2018-06-hashing-victims-databases.html
Mathematics Tue, 05 Jun 2018 09:45:45 EDTnews447410733Researchers develop new happiness indexA team of researchers at the Universitat Politècnica de València (UPV) and Universitat de València (UV) have developed a new index to measure a country's happiness. Named HAIN (HAppiness INdex), it is based on five areas – development, freedom, solidarity, justice and peace, each of which is evaluated based on quantitative variables taken from various official databases such as the UN's Human Development Reports, the World Bank Open Data and Eurostat.
https://phys.org/news/2018-06-happiness-index.html
Mathematics Tue, 05 Jun 2018 07:52:46 EDTnews447403955Predicting the outcomes of FIFA World CupOne of the favourites in soccer's upcoming 2018 FIFA World Cup, Germany, has just 13.3% chance of winning. And Australia has 14% chance of getting to the round of 16, but only 0.1% chance of winning. These are outcomes from an uncertainty model devised by University of Adelaide's Professor Steve Begg.
https://phys.org/news/2018-06-outcomes-fifa-world-cup.html
Mathematics Mon, 04 Jun 2018 10:26:23 EDTnews447326769NASA mathematician Katherine Johnson being honored in bronzeKatherine Johnson, the NASA mathematician whose calculations helped astronauts return to Earth, is being honored at her alma mater with a bronze statue and a scholarship in her time.
https://phys.org/news/2018-06-nasa-mathematician-katherine-johnson-honored.html
Mathematics Mon, 04 Jun 2018 09:53:07 EDTnews447324781Statisticians say Brazil will play Germany in the FIFA World Cup finalThe favorites for this year's World Cup title are Brazil and Germany. The two teams are almost on a par with their chances of winning, as statisticians around Achim Zeileis from the University of Innsbruck show. With their statistical model based on bookmakers' odds, the researchers have successfully predicted several tournaments in the past, among them the correct world champion Spain in the 2010 FIFA World Cup and three out of four semi-finalists in the 2014 FIFA World Cup in Brazil.
https://phys.org/news/2018-06-statisticians-brazil-germany-fifa-world.html
Mathematics Fri, 01 Jun 2018 05:40:01 EDTnews447050074Connecting the dots to unlock brain structureMapping genetic influences on connections between neural networks could lead to a better understanding of brain organization and behavior.
https://phys.org/news/2018-05-dots-brain.html
Mathematics Tue, 15 May 2018 07:48:28 EDTnews445589300Topic-adjusted visibility metric for scientific articlesAn NUS statistician has developed a metric that automatically accounts for citation variations in different disciplines for measuring the research merit of scientific articles.
https://phys.org/news/2018-05-topic-adjusted-visibility-metric-scientific-articles.html
Mathematics Thu, 10 May 2018 06:37:29 EDTnews445153043Math sheds light on how living cells 'think'How does the 'brain' of a living cell work, allowing an organism to function and thrive in changing and unfavourable environments?
https://phys.org/news/2018-05-math-cells.html
Mathematics Wed, 02 May 2018 09:36:29 EDTnews444472580Longest straight-line ocean path on planet Earth calculatedA pair of researchers, one with United Technologies Research Center, the other with IBM Research, has developed an algorithm that can be used to determine the longest straight-line path over water on Earth. In their paper uploaded to the arXiv preprint server, Rohan Chabukswar and Kushal Mukherjee describe their algorithm and what it revealed.
https://phys.org/news/2018-05-longest-straight-line-ocean-path-planet.html
Mathematics Wed, 02 May 2018 08:59:25 EDTnews444470260Math puzzle goes viralA University of Huddersfield lecturer has puzzled the world.
https://phys.org/news/2018-04-math-puzzle-viral.html
Mathematics Mon, 30 Apr 2018 09:36:16 EDTnews444299763Amateur mathematician partially solves 60-year-old problemProfessional biologist and amateur mathematician Aubrey de Grey has partially solved the Hadwiger-Nelson problem, which has vexed mathematicians since 1950. He has published a paper describing the solution on the arXiv preprint server.
https://phys.org/news/2018-04-amateur-mathematician-partially-year-old-problem.html
Mathematics Tue, 24 Apr 2018 09:10:23 EDTnews443779197New study improves 'crowd wisdom' estimatesIn 1907, a statistician named Francis Galton recorded the entries from a weight-judging competition as people guessed the weight of an ox. Galton analyzed hundreds of estimates and found that while individual guesses varied wildly, the median of the entries was surprisingly accurate and within one percent of the ox's real weight. When Galton published his results, he ushered the theory of collective intelligence, or the "wisdom of crowds," into the public conscience.
https://phys.org/news/2018-04-crowd-wisdom.html
Mathematics Wed, 18 Apr 2018 09:07:15 EDTnews443261228Mathematicians devise new model to study response of endovascular aneurysm sealingResearchers at the University of Liverpool have developed a mathematical model that has the potential to improve the performance of endovascular aneurysm sealing (EVAS), which is an innovative procedure to treat abdominal aortic aneurysms (AAA).
https://phys.org/news/2018-04-mathematicians-response-endovascular-aneurysm.html
Mathematics Mon, 09 Apr 2018 07:25:15 EDTnews442477505Why prime numbers still fascinate mathematicians, 2,300 years laterOn March 20, American-Canadian mathematician Robert Langlands received the Abel Prize, celebrating lifetime achievement in mathematics. Langlands' research demonstrated how concepts from geometry, algebra and analysis could be brought together by a common link to prime numbers.
https://phys.org/news/2018-04-prime-fascinate-mathematicians-years.html
Mathematics Tue, 03 Apr 2018 06:53:34 EDTnews441957190Cracked it! Experts find answer to the knuckle-popping puzzle (Update)It has puzzled scientists for over 100 years but now they appear to have cracked it: what, exactly, is it that causes that wince-inducing sound when you pop your knuckles?
https://phys.org/news/2018-03-experts-knuckle-popping-puzzle.html
Mathematics Thu, 29 Mar 2018 10:15:24 EDTnews441537316Mathematicians invent tool to judge when voting maps have been unfairly drawnIn 1812, the governor of Massachusetts, Elbridge Gerry, approved a narrow and winding voting district for the state senate that curved from Marblehead around to Salisbury. It looked like a long-necked salamander, Federalist newspaper editors declared. They labeled the district "The Gerry-Mander," and the Salem-Gazette warned that it was a "monster brought forth to swallow and devour your Liberties and equal Rights."
https://phys.org/news/2018-03-mathematicians-tool-voting-unfairly-drawn.html
Mathematics Wed, 21 Mar 2018 15:06:01 EDTnews440863547Sustained bacterial outbreak in mosquitoes limits spread of life-threatening diseasesMedical practitioners, such as those at the Centers for Disease Control and Prevention, frequently utilize mathematical models when determining how to best control the spread of mosquito-borne illnesses. Diseases such as chikungunya, dengue fever, malaria, and Zika virus can be life-threatening, and no effective vaccine currently exists. While most mitigation strategies aim to eliminate popular mosquito breeding sites through the use of insecticides, the accompanying costs, logistical difficulties, and resistance evolution make these treatment methods unsustainable.
https://phys.org/news/2018-03-sustained-bacterial-outbreak-mosquitoes-limits.html
Mathematics Tue, 20 Mar 2018 09:00:02 EDTnews440747490The 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 EDTnews436610659