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en-usPhys.org provides the latest news on mathematics, math, math science, mathematical science and math technology. A faster method for multiplying very big numbersThe multiplication of integers is a problem that has kept mathematicians busy since Antiquity. The "Babylonian" method we learn at school requires us to multiply each digit of the first number by each digit of the second one. But when both numbers have a billion digits each, that means a billion times a billion or 1018 operations.
https://phys.org/news/2019-04-faster-method-big.html
Mathematics Fri, 12 Apr 2019 08:43:47 EDTnews474277423We've found a quicker way to multiply really big numbersMultiplication of two numbers is easy, right?
https://phys.org/news/2019-04-weve-quicker-big.html
Mathematics Wed, 10 Apr 2019 09:10:02 EDTnews474105241Breaking down Beowulf: Statistical technique finds evidence that Old English poem had a single authorIt's been a towering landmark in the world of English literature for more than two centuries, but Beowulf is still the subject of fierce academic debate, in part between those who claim the epic poem is the work of a single author and those who claim it was stitched together from multiple sources.
https://phys.org/news/2019-04-beowulf-statistical-technique-evidence-english.html
Mathematics Mon, 08 Apr 2019 11:00:12 EDTnews473922274An analysis of nearly 4 million pitches shows just how many mistakes umpires makeBaseball is back, and fans can anticipate another season of amazing catches, overpowering pitching, tape-measure home runs – and, yes, controversial calls that lead to blow-ups between umpires and players.
https://phys.org/news/2019-04-analysis-million-pitches-umpires.html
Mathematics Mon, 08 Apr 2019 09:50:01 EDTnews473932791Using computers to crack open centuries-old mathematical puzzlesIn mathematics, no researcher works in true isolation. Even those who work alone use the theorems and methods of their colleagues and predecessors to develop new ideas.
https://phys.org/news/2019-04-centuries-old-mathematical-puzzles.html
Mathematics Wed, 03 Apr 2019 09:47:08 EDTnews473503624Three times political conflict reshaped American mathematicsWars. Politics. Dynasties. Nationalism.
https://phys.org/news/2019-04-political-conflict-reshaped-american-mathematics.html
Mathematics Education Tue, 02 Apr 2019 09:30:41 EDTnews473416233Bristol mathematician cracks Diophantine puzzleA mathematician from the University of Bristol has found a solution to part of a 64-year old mathematical problem – expressing the number 33 as the sum of three cubes.
https://phys.org/news/2019-04-bristol-mathematician-diophantine-puzzle.html
Mathematics Tue, 02 Apr 2019 07:40:04 EDTnews473409600Is it the end of 'statistical significance'? The battle to make science more uncertainThe scientific world is abuzz following recommendations by two of the most prestigious scholarly journals – The American Statistician and Nature – that the term "statistical significance" be retired.
https://phys.org/news/2019-04-statistical-significance-science-uncertain.html
Mathematics Mon, 01 Apr 2019 09:19:01 EDTnews473329135Sentiment analysis for portfolio managementNUS data scientists have developed a deep learning-based text data analytics method to extract sentiment information from analyst reports for investment decisions.
https://phys.org/news/2019-04-sentiment-analysis-portfolio.html
Mathematics Economics & Business Mon, 01 Apr 2019 09:00:05 EDTnews473326688Data reveals the value of an assist in basketballA player drives to the basket. As the defense collapses, he passes the ball to his teammate, anchored at the corner, for the open three-point shot.
https://phys.org/news/2019-03-reveals-basketball.html
Mathematics Fri, 29 Mar 2019 09:40:01 EDTnews473070840NJIT mathematical sciences professor releases major league baseball predictionsNJIT Mathematical Sciences Professor and Associate Dean Bruce Bukiet has published his model's projections of how the standings should look at the end of Major League Baseball's regular season in 2019. For more than 20 years, Bukiet has applied mathematical models to compute the number of regular season games each Major League Baseball team should win. His mathematically derived projections have consistently compared well with those of so-called experts.
https://phys.org/news/2019-03-njit-mathematical-sciences-professor-major.html
Mathematics Thu, 28 Mar 2019 13:17:48 EDTnews472997830Calling time on 'statistical significance' in science researchScientists should stop using the term 'statistically significant' in their research, urges this editorial in a special issue of The American Statistician published today.
https://phys.org/news/2019-03-statistical-significance-science.html
Mathematics Thu, 21 Mar 2019 03:09:26 EDTnews472356545Mathematicians reveal secret to human sperm's swimming prowessResearchers have discovered what gives human sperm the strength to succeed in the race to fertilise the egg.
https://phys.org/news/2019-03-mathematicians-reveal-secret-human-sperm.html
Mathematics Tue, 19 Mar 2019 20:10:01 EDTnews472226103Odds of perfect bracket are 1 in 9.2 quintillion, so why do we play?The odds are, quite frankly, astronomical. If you are sitting down today to fill out your NCAA bracket, know this: the odds of getting it 100 percent correct are 1 in 9.2 quintillion (a number string 19 digits long). But yet many of us still play, and there's good reason for that.
https://phys.org/news/2019-03-odds-bracket-quintillion.html
Mathematics Tue, 19 Mar 2019 10:20:01 EDTnews472206923Abel Prize for maths awarded to woman for first timeWomen took another step forward in the still male-dominated world of science Tuesday, as American Karen Uhlenbeck won the Abel Prize in mathematics for her work on partial differential equations.
https://phys.org/news/2019-03-abel-prize-maths-awarded-woman.html
Mathematics Tue, 19 Mar 2019 09:13:03 EDTnews472205574Video: Our endless fascination with piFor centuries, pi—the ratio of a circle's circumference to its diameter—has fascinated mathematicians and scientists. The number, which is infinite but never falls into a repeating pattern, is used in formulae throughout the sciences. For more perspective on the significance and fascination with the number, for Pi Day (3.14) the Gazette spoke with Jacob Barandes, a lecturer and director of graduate studies for physics.
https://phys.org/news/2019-03-video-endless-fascination-pi.html
Mathematics Thu, 14 Mar 2019 07:13:02 EDTnews471766376Probability of catastrophic geomagnetic storm lower than estimatedThree mathematicians and a physicist from the Universitat Autònoma de Barcelona (UAB), the Mathematics Research Centre (CRM) and the Barcelona Graduate School of Mathematics (BGSMath) propose a mathematical model to make reliable estimations of the probability of geomagnetic storms caused by solar activity.
https://phys.org/news/2019-03-probability-catastrophic-geomagnetic-storm.html
Mathematics Tue, 12 Mar 2019 09:12:28 EDTnews471600740Do all networks obey the scale-free law? Maybe notAs Benjamin Franklin once joked, death and taxes are universal. Scale-free networks may not be, at least according to a new study from CU Boulder.
https://phys.org/news/2019-03-networks-scale-free-law.html
Mathematics Mon, 04 Mar 2019 16:43:14 EDTnews470940173Disclosing bed bug infestation to potential tenants can save landlords moneyLaws that require landlords to disclose bed bug infestations help combat the spread of the insects and protect the health of potential tenants. According to a new study, these laws also lead to cost savings, on average, for landlords within five years. Researchers in the Perelman School of Medicine at the University of Pennsylvania published their findings today in Proceedings of the National Academy of Sciences (PNAS).
https://phys.org/news/2019-03-disclosing-bed-bug-infestation-potential.html
Mathematics Mon, 04 Mar 2019 15:00:06 EDTnews470911196Big data is being reshaped thanks to 100-year-old ideas about geometryYour brain is made up of billions of neurons connected by trillions of synapses. And how they're arranged gives rise to the brain's functionality and to your personality. That's why scientists in Switzerland recently produced the first-ever digital 3-D brain cell atlas, a complete mapping of the brain of a mouse. While this is a colossal achievement, the great challenge now lies in learning to decipher the atlas. And it's a huge one.
https://phys.org/news/2019-02-big-reshaped-year-old-ideas-geometry.html
Mathematics Wed, 20 Feb 2019 10:46:38 EDTnews469881983Epidemiological model lends insight to chlamydia outbreak in JapanMathematical models that quantify the dynamics of infectious diseases are crucial predictive tools for the control of ongoing and future outbreaks. An infection's basic reproduction number (R0) is especially important to disease modeling and epidemiology, as it determines global behavior and measures a disease's transferability within a fully-susceptible population. In short, R0 helps public health officials discern an epidemic's intensity and the likelihood of its successful spread. If R0>1, an outbreak occurs. If R0
https://phys.org/news/2019-02-epidemiological-insight-chlamydia-outbreak-japan.html
Mathematics Tue, 19 Feb 2019 11:10:02 EDTnews469796860Mathematical monotsukuri: Summing a constant may help to detect synchronized brain activityScientists at Tokyo Institute of Technology found a simple, yet effective way to improve how synchronization is measured in chaotic systems. The technique consists of adding a constant parameter to the "analytic signals" in a way that emphasizes certain aspects of their timing. This could improve brain-computer interfaces designed to aid disabled people.
https://phys.org/news/2019-02-mathematical-monotsukuri-summing-constant-synchronized.html
Mathematics Thu, 14 Feb 2019 07:21:33 EDTnews469351285Mathematicians report a way to optimize post-stroke therapyRUDN scientists have created a mathematical model describing changes in the properties of brain tissues after stroke. The development will help clinicians to optimize post-stroke therapy by stimulating brain neurons and taking into account each patient's individual situation. The results of the study were published in Mathematical Biosciences.
https://phys.org/news/2019-02-mathematicians-optimize-post-stroke-therapy.html
Mathematics Wed, 13 Feb 2019 08:57:59 EDTnews469270671A balanced filter for making optimal decisionsA RUDN mathematician has suggested a method of evaluating the level of nonadditivity in a choice problem, i.e. to calculate how the parameters of the choice are connected to each other, and how it influences the end result. The study provides a method to analyze such systems and find out the most optimal decision by means of calculations. The work was published in Information Sciences.
https://phys.org/news/2019-02-filter-optimal-decisions.html
Mathematics Wed, 13 Feb 2019 07:11:13 EDTnews469264264Improving geothermal HVAC systems with mathematicsExtreme weather events, water shortages, and other consequences of climate change have challenged—and compromised—energy infrastructure around the world. Increased energy consumption is threatening the longevity of a dependable energy supply, and significant reductions to collective energy usage are necessary to mitigate the continued effects of a warming climate. Most energy sources require fuel and emit greenhouse gases and other forms of air pollution. For example, the heating and cooling of buildings accounts for over 25 percent of the world's energy consumption. In the European Union specifically, buildings are responsible for approximately 40 percent of energy consumption and 36 percent of carbon dioxide emission. Because nearly three-quarters of its buildings are considered energy inefficient, the EU recently updated its Energy Performance of Buildings Directive to require that all newly-constructed buildings be nearly zero-energy by 2021.
https://phys.org/news/2019-02-geothermal-hvac-mathematics.html
Mathematics Tue, 12 Feb 2019 10:00:02 EDTnews469174218Mathematician calculates parameters for optimal crowd and traffic controlA RUDN mathematician has developed a solution for a perturbed differential containment—a generalized case of a differential equation. The development will calculate optimal paths for the movement of a crowd or a flow of cars. It may also be used to manage robotic cars and multi-agent robotic systems. The results of the study were published in the Journal of Differential Equations.
https://phys.org/news/2019-02-mathematician-parameters-optimal-crowd-traffic.html
Mathematics Mon, 11 Feb 2019 09:28:56 EDTnews469099731Famous 'sandpile model' shown to move like a traveling sand duneThe so-called Abelian sandpile model has been studied by scientists for more than 30 years to better understand a physical phenomenon called self-organized criticality, which appears in many real-life situations such as the coordinated firing of brain cells, the spread of forest fires, the distribution of earthquake magnitudes, and even in the coordinated behavior of ant colonies. Even though the sandpile model serves as the archetypal model to study self-organized criticality, questions about its characteristics are still open and remain an active field of research.
https://phys.org/news/2019-02-famous-sandpile-shown-sand-dune.html
Mathematics Mon, 11 Feb 2019 08:33:51 EDTnews469096421Mathematician calculates wave velocity for post-stroke therapyA RUDN mathematician calculated the velocity of wave propagation in the brain in the course of external stimulation. This procedure is used to treat stroke patients. To do so, the scientists generally formulated the task by creating a reaction-diffusion equation and carried out a theoretical study of it. The results of the study were published in Applied Mathematics Letters.
https://phys.org/news/2019-01-mathematician-velocity-post-stroke-therapy.html
Mathematics Wed, 23 Jan 2019 10:30:02 EDTnews467458887Frog choruses inspire wireless sensor networksIf you've ever camped by a pond, you know frogs make a racket at night; but what you might not know is how functional and regulated their choruses really are. Frogs communicate with sound, and amid their ruckus is an internally orchestrated system that lets information get through more clearly while also permitting collective choruses and time to rest. Researchers from Osaka University and University of Tsukuba sought to leverage this amphibious acumen for mathematical and technological aims.
https://phys.org/news/2019-01-frog-choruses-wireless-sensor-networks.html
Mathematics Mon, 21 Jan 2019 09:00:01 EDTnews467283057Unraveling threads of bizarre hagfish's explosive slimeHundreds of meters deep in the dark of the ocean, a shark glides toward what seems like a meal. It's kind of ugly, eel-like and not particularly meaty, but still probably food. So the shark strikes.
https://phys.org/news/2019-01-unraveling-threads-bizarre-hagfish-explosive.html
Mathematics Tue, 15 Jan 2019 19:00:01 EDTnews466789412