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en-usPhys.org provides the latest news on mathematics, math, math science, mathematical science and math technology. Fractals patterns in a drummer's musicFractal patterns are profoundly human – at least in music. This is one of the findings of a team headed by researchers from the Max Planck Institute for Dynamics and Self-Organization in Göttingen and Harvard University in Cambridge, Massachusetts following an analysis of the drumming of Jeff Porcaro who played in the band Toto and who many fans believe set new standards. In both the rhythm and the loudness of his hits on the hi-hat, the researchers discovered self-similar patterns with structures in longer periods of time that resemble the structures present in shorter time intervals. People evidently prefer exactly this type of variation: totally precise percussion or hits varied purely at random were perceived as less agreeable. The sequence of our heartbeats also has fractal properties, and too much precision can even be life threatening here.
http://phys.org/news/2015-08-fractals-patterns-drummer-music.html
Mathematics Fri, 28 Aug 2015 05:45:34 EDTnews359959524How maths can help explain the workings of our brainGiven that advanced mathematical training is critical for helping to solve some of the most challenging questions about the brain works, why are there so few mathematical neuroscientists?
http://phys.org/news/2015-08-maths-brain.html
Mathematics Fri, 21 Aug 2015 07:10:04 EDTnews359359231Statistical model predicts with high accuracy play-calling tendency of NFL teamsIf a defensive coordinator of a National Football League (NFL) team could predict with high accuracy whether their team's opponent will call a pass or run play during a game, he would become a rock star in the league and soon be a head coach candidate.
http://phys.org/news/2015-08-statistical-high-accuracy-play-calling-tendency.html
Mathematics Wed, 12 Aug 2015 09:31:49 EDTnews358590699Statisticians using social media to track foodborne illness and improve disaster responseThe growing popularity and use of social media around the world is presenting new opportunities for statisticians to glean insightful information from the infinite stream of posts, tweets and other online communications that will help improve public safety.
http://phys.org/news/2015-08-statisticians-social-media-track-foodborne.html
Mathematics Wed, 12 Aug 2015 09:31:06 EDTnews358590657New model describes cognitive decision making as the collapse of a quantum superstate (Phys.org)—Decision making in an enormous range of tasks involves the accumulation of evidence in support of different hypotheses. One of the enduring models of evidence accumulation is the Markov random walk (MRW) theory, which assigns a probability to each hypothesis. In an MRW model of decision making, when deciding between two hypotheses, the cumulative evidence for and against each hypothesis reaches different levels at different times, moving particle-like from state to state and only occupying a single definite evidence level at any given point.
http://phys.org/news/2015-08-cognitive-decision-collapse-quantum-superstate.html
Mathematics Wed, 12 Aug 2015 09:30:09 EDTnews358574055Human societies think fast and slow in cycles, mathematicians findAs humans have evolved, so has our capacity to think rationally and use resources wisely - right? Not necessarily. According to Cornell research, careful, deliberate decision-making is in constant competition with the more knee-jerk type of behavior.
http://phys.org/news/2015-08-human-societies-fast-mathematicians.html
Mathematics Wed, 12 Aug 2015 07:59:03 EDTnews358585133Statistical model helps police identify crime series; speeds apprehension of perpetratorsA statistical model—now an easy-to-use software tool—local police can use to identify a series of related crimes and nab a suspect was unveiled today by Michael D. Porter during a presentation at the 2015 Joint Statistical Meetings (JSM 2015) in Seattle.
http://phys.org/news/2015-08-statistical-police-crime-series-apprehension.html
Mathematics Tue, 11 Aug 2015 09:00:02 EDTnews358501171Improving global security through real-time analysis of complex risksStatistical models are playing an increasingly important role in risk analysis and helping the United States and other countries around the globe mitigate the effects of natural and man-made disasters, said Siddhartha (Sid) Dalal during a presentation at the 2015 Joint Statistical Meetings (JSM 2015) yesterday in Seattle.
http://phys.org/news/2015-08-global-real-time-analysis-complex.html
Mathematics Mon, 10 Aug 2015 09:01:53 EDTnews358416095Statistical model uses transaction attributes to better target marketing resourcesA new statistical model that businesses can use to approximate an upper limit on the appropriate amount of marketing dollars they should invest in retaining their most important customers was presented today at a session of the 2015 Joint Statistical Meetings (JSM 2015) in Seattle.
http://phys.org/news/2015-08-statistical-transaction-attributes-resources.html
Mathematics Mon, 10 Aug 2015 09:01:17 EDTnews358416066World population likely to surpass 11 billion in 2100The world's population will increase from today's 7.3 billion people to 9.7 billion in 2050 and 11.2 billion at century's end, John R. Wilmoth, the director of the United Nations (UN) Population Division, told a session focused on demographic forecasting at the 2015 Joint Statistical Meetings (JSM 2015) today in Seattle.
http://phys.org/news/2015-08-world-population-surpass-billion.html
Mathematics Mon, 10 Aug 2015 09:00:23 EDTnews358416008Analysis of men's and women's tennis performance finds differences from match formatQuantitative analysis of the performance of men and women professional tennis players over the past five completed seasons shows for the first time that evidence of inconsistency in women's play is likely attributable to match format (e.g., best of three or five sets), not gender, Stephanie Kovalchik—an associate statistician with the RAND Corporation—today revealed at a session focused on analytics of women's sports at the 2015 Joint Statistical Meetings (JSM 2015) in Seattle.
http://phys.org/news/2015-08-analysis-men-women-tennis-differences.html
Mathematics Sun, 09 Aug 2015 12:03:07 EDTnews358340577Linking survey and administrative data better gauges impact of federal anitpovery effortsLinking survey data with administrative records will enable the federal government to better gauge the effectiveness of social welfare programs such as food stamps and federal housing assistance, as well as the overall reach of federal antipoverty initiatives, Bruce D. Meyer today told a session audience at the 2015 Joint Statistical Meetings (JSM 2015) in Seattle.
http://phys.org/news/2015-08-linking-survey-administrative-gauges-impact.html
Mathematics Sun, 09 Aug 2015 11:57:31 EDTnews358340213Statistical technique helps cancer researchers understand tumor makeup, personalize careA new statistical method for analyzing next-generation sequencing (NGS) data that helps researchers study the genome of various organisms such as human tumors and could help bring about personalized cancer treatments was presented today at a session of the 2015 Joint Statistical Meetings (JSM 2015) in Seattle.
http://phys.org/news/2015-08-statistical-technique-cancer-tumor-makeup.html
Mathematics Sun, 09 Aug 2015 11:56:19 EDTnews358340159Model shows how surge in wealth inequality may be reversed(Phys.org)—For many Americans, the single biggest problem facing the country is the growing wealth inequality. Based on income tax data, wealth inequality in the US has steadily increased since the mid-1980s, with the top 10% of the population currently owning about 73% of the country's wealth. In a new paper published in PLOS ONE, researchers have quantitatively analyzed several of the major factors that affect wealth inequality dynamics, and found that the most crucial factor associated with the recent surge in wealth inequality since the '80s has been the dramatic decrease in personal savings, followed closely by a large increase in the dominance of capital income over labor income.
http://phys.org/news/2015-07-surge-wealth-inequality-reversed.html
Mathematics Thu, 30 Jul 2015 09:10:01 EDTnews357447315Using math to make GuinnessIf you ever read public health research, you've probably encountered the term "Student's t-test," or just "t-test." The experimenters will do this magical test, and suddenly conclude that everything is awesome. But even when you're familiar with the t-test and what it does, very little thought goes into where this came from, or who came up with it. Well, today I'm going to tell you the origins of this staple of public health research.
http://phys.org/news/2015-07-math-guinness.html
Mathematics Wed, 29 Jul 2015 08:40:02 EDTnews357376585Researchers develop math model to determine greatness of cities(Phys.org)—A team of life scientists and mathematicians at Imperial College in London has created a series of formulas that together allow for determining what they deem the greatness of a city. In their paper published in Journal of the Royal Society Interface, the team describes the factors they consider to be critical in judging the greatness of a city and the formulas they developed to create a model.
http://phys.org/news/2015-07-math-greatness-cities.html
Mathematics Wed, 15 Jul 2015 09:50:01 EDTnews356169971'Smaller is smarter' in superspreading of influence in social networkA study by City College of New York physicists Flaviano Morone and Hernán A. Makse suggests that "smaller is smarter" when it comes to influential superspreaders of information in social networks. This is a major shift from the widely held view that "bigger is better," and could have important consequences for a broad range of social, natural and living networked systems.
http://phys.org/news/2015-07-smaller-smarter-superspreading-social-network.html
Mathematics Wed, 01 Jul 2015 18:58:57 EDTnews354995926Stuck on you: Research shows fingerprint accuracy stays the same over timeFingerprints have been used by law enforcement and forensics experts to successfully identify people for more than 100 years. Though fingerprints are assumed to be infallible personal identifiers, there has been little scientific research to prove this claim to be true. As such, there have been repeated challenges to the admissibility of fingerprint evidence in courts of law.
http://phys.org/news/2015-06-stuck-fingerprint-accuracy.html
Mathematics Mon, 29 Jun 2015 16:47:41 EDTnews354815255Don't freak if you can't solve a math problem that's gone viralIt's been quite a year for mathematics problems on the internet. In the last few months, three questions have been online everywhere, causing consternation and head-scratching and blowing the minds of adults worldwide as examples of what kids are expected to know these days.
http://phys.org/news/2015-06-dont-freak-math-problem-viral.html
Mathematics Thu, 25 Jun 2015 11:00:01 EDTnews354444834New study predicts variation in illness severity in a populationMany of us are familiar with bell-shaped curves that describe the distributions of school grades and total annual rainfall, among many other quantities. This ubiquitous distribution results when many points for individual non-correlated quantities are added to produce an outcome.
http://phys.org/news/2015-06-variation-illness-severity-population.html
Mathematics Tue, 23 Jun 2015 15:44:22 EDTnews354293055Mathematicians formulate equations, bend light and figure out how to hide thingsThe idea of cloaking and rendering something invisible hit the small screen in 1966 when a Romulan Bird of Prey made an unseen, surprise attack on the Starship Enterprise on Star Trek. Not only did it make for a good storyline, it likely inspired budding scientists, offering a window of technology's potential.
http://phys.org/news/2015-06-mathematicians-equations-figure.html
Mathematics Mon, 22 Jun 2015 06:48:39 EDTnews354174504Statistics education, evidence-based data analysis practices needed to fight reproducibility crisis in scienceDramatic increases in data science education coupled with robust evidence-based data analysis practices could stop the scientific research reproducibility and replication crisis before the issue permanently damages science's credibility, asserts Roger D. Peng in an article in the newly released issue of Significance magazine.
http://phys.org/news/2015-06-statistics-evidence-based-analysis-crisis-science.html
Mathematics Tue, 16 Jun 2015 17:35:09 EDTnews353694897New study finds battlegound state polling worked until 2012 electionA statistical analysis of poll performance in battleground states over the last three presidential elections shows polling firms produced estimates that were fairly accurate in 2004 and 2008, but underestimated support for President Obama in 2012, a new article reports.
http://phys.org/news/2015-06-battlegound-state-polling-election.html
Mathematics Mon, 15 Jun 2015 14:29:01 EDTnews353597332Mathematical models with complicated dynamics for disease studyA paper to be published this week in the SIAM Journal on Applied Dynamical Systems presents a mathematical model to study the effects of individual movement on infectious disease spread.
http://phys.org/news/2015-06-mathematical-complicated-dynamics-disease.html
Mathematics Thu, 11 Jun 2015 09:30:01 EDTnews353231056How mathematics reveals the nature of the cosmosLet us discuss the very nature of the cosmos. What you may find in this discussion is not what you expect. Going into a conversation about the universe as a whole, you would imagine a story full of wondrous events such as stellar collapse, galactic collisions, strange occurrences with particles, and even cataclysmic eruptions of energy. You may be expecting a story stretching the breadth of time as we understand it, starting from the Big Bang and landing you here, your eyes soaking in the photons being emitted from your screen. Of course, the story is grand. But there is an additional side to this amazing assortment of events that oftentimes is overlooked; that is until you truly attempt to understand what is going on. Behind all of those fantastic realizations, there is a mechanism at work that allows for us to discover all that you enjoy learning about. That mechanism is mathematics, and without it the universe would still be shrouded in darkness. In this article, I will attempt to persuade you that math isn't some arbitrary and sometimes pointless mental task that society makes it out to be, and instead show you that it is a language we use to communicate with the stars.
http://phys.org/news/2015-06-mathematics-reveals-nature-cosmos.html
Mathematics Mon, 08 Jun 2015 09:00:01 EDTnews352970459Mathematician theorizes what happened to MH370The plight of Malaysia Airlines flight 370 (MH370) is one of the biggest mysteries in aviation history, but an interdisciplinary research team led by a Texas A&M University at Qatar math professor has theorized the ill-fated plane plunged vertically into the southern Indian Ocean in March 2014.
http://phys.org/news/2015-06-mathematician-theorizes-mh370.html
Mathematics Mon, 08 Jun 2015 07:30:01 EDTnews352963169A little number theory makes the times table a thing of beautyMost people will probably remember the times tables from primary school quizzes. There might be patterns in some of them (the simple doubling of the 2 times table) but others you just learnt by rote. And it was never quite clear just why it was necessary to know what 7 x 9 is off the top of your head.
http://phys.org/news/2015-06-theory-table-beauty.html
Mathematics Mon, 08 Jun 2015 07:10:01 EDTnews352965429New theory identifies height-to-base ratio that helped humanity master fire and migrate across the globeFrom ancient Egyptians roasting a dripping cut of beef next to the Great Pyramid of Giza to a Boy Scout learning to build a log cabin fire in his backyard, everyone builds fires with the same general shape. And now we know why.
http://phys.org/news/2015-06-theory-height-to-base-ratio-humanity-master.html
Mathematics Mon, 08 Jun 2015 05:00:03 EDTnews352919049The growing influence of statisticiansWith more information than ever at our fingertips, statisticians are vital to innumerable fields and industries. Welcome to the world of the datarati, where humans and machines team up to crunch the numbers.
http://phys.org/news/2015-06-statisticians.html
Mathematics Thu, 04 Jun 2015 06:35:35 EDTnews352618526The legacy of John Nash and his equilibrium theoryThe American mathematician John Nash, who died in a taxi accident at the weekend, is probably best known to the wider public through Russell Crowe's portrayal of him in the 2001 movie A Beautiful Mind.
http://phys.org/news/2015-05-legacy-john-nash-equilibrium-theory.html
Mathematics Tue, 26 May 2015 08:30:02 EDTnews351843808