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en-usPhys.org provides the latest news on mathematics, math, math science, mathematical science and math technology. Did sexism play a role in Serena Williams' loss at the US Open?A new Statistics Views article examines whether sexism played a role in what took place in the final round of the women's singles at the 2018 US Open, when American tennis superstar Serena Williams was fined for three code violations that caused her to be penalized during a game when she criticized the umpire for a controversial call and labeled him a "thief."
https://phys.org/news/2018-10-sexism-role-serena-williams-loss.html
Mathematics Thu, 11 Oct 2018 09:39:40 EDTnews458469571Bitcoin better than the dollar?The name cryptocurrency does not inspire trust. Advanced statistical analysis for the Bitcoin market carried out at the Institute of Nuclear Physics of the Polish Academy of Sciences in Cracow, however, has not shown any significant differences between its basic statistical parameters and their equivalents for respected financial markets. All indications are that Bitcoin is a better currency than it might seem at first glance.
https://phys.org/news/2018-10-bitcoin-dollar.html
Mathematics Thu, 11 Oct 2018 09:30:43 EDTnews458469033Statistician's new book explores the meaning of luck in everyday lifeWhen Joe Parker offered to take a photo of a vacationing family at a beach in Waikiki, he had no idea at first that he'd just met his half-brother. Rick Hill, the man he'd just photographed, had a noticeable Massachusetts accent, and Parker commented on it. They soon discovered that they grew up in neighbouring towns. Parker started throwing out some names, including his dad's, Dickie Halligan. To Parker's great surprise, Hill replied that Halligan was his father too.
https://phys.org/news/2018-10-statistician-explores-luck-everyday-life.html
Mathematics Mon, 08 Oct 2018 09:00:02 EDTnews458207392Limitations of batsmen rankings revealedCurrent systems for ranking the best batsmen in test cricket have been bowled out by a new study.
https://phys.org/news/2018-10-limitations-batsmen-revealed.html
Mathematics Tue, 02 Oct 2018 09:10:11 EDTnews457688118Has one of math's greatest mysteries, the Riemann hypothesis, finally been solved?Over the past few days, the mathematics world has been abuzz over the news that Sir Michael Atiyah, the famous Fields Medalist and Abel Prize winner, claims to have solved the Riemann hypothesis.
https://phys.org/news/2018-09-math-greatest-mysteries-riemann-hypothesis.html
Mathematics Fri, 28 Sep 2018 08:30:03 EDTnews457342199A unitary theory of metric analysis helps unveil structures within dataAs the EU-funded MANET project worked with abstract geometric structures it was able to model a range of phenomena as integral curves of vector fields. This allowed the project to shed light on retinal vessels and cortical connectivity, as well as vehicle dynamics and traffic flow.
https://phys.org/news/2018-09-unitary-theory-metric-analysis-unveil.html
Mathematics Tue, 25 Sep 2018 09:00:02 EDTnews457084054The weird world of one-sided objectsYou have most likely encountered one-sided objects hundreds of times in your daily life – like the universal symbol for recycling, found printed on the backs of aluminum cans and plastic bottles.
https://phys.org/news/2018-09-weird-world-one-sided.html
Mathematics Mon, 24 Sep 2018 09:44:51 EDTnews457001085Solving real-world problemsTools developed by Håvard Rue have transformed data analysis, interpretation and communication, and are applied broadly: from modeling the spread of infectious diseases to mapping fish stocks.
https://phys.org/news/2018-09-real-world-problems.html
Mathematics Thu, 20 Sep 2018 10:00:03 EDTnews456653150Statistician examines Beatles mysteryMark Glickman is Fixing a Hole in Beatles lore.
https://phys.org/news/2018-09-statistician-beatles-mystery.html
Mathematics Thu, 20 Sep 2018 09:00:03 EDTnews456651985Searching for new bridge forms that can span furtherNewly identified bridge forms could enable significantly longer bridge spans to be achieved in the future, potentially making a crossing over the Strait of Gibraltar, from the Iberian Peninsula to Morocco, feasible.
https://phys.org/news/2018-09-bridge-span.html
Mathematics Wed, 19 Sep 2018 02:19:37 EDTnews456542367Mathematicians propose first continuous self-organised criticality modelAn international group of researchers (the first author is Nikita Kalinin, Higher School of Economics—Saint-Petersburg, the last author is Ernesto Lupercio, CINVESTAV, Mexico) has presented the first continuous model describing self-organised criticality. The proposed solution is simpler and more universal than the classical sandpile model. It integrates areas as remote from one another as economics, developmental biology, and gravity in the context of tropical geometry. The paper was published in Proceedings of the National Academy of Sciences.
https://phys.org/news/2018-09-mathematicians-self-organised-criticality.html
Mathematics Thu, 13 Sep 2018 07:21:04 EDTnews456042054Game theory can prevent disease outbreaksWhen multiple passengers on a flight from Dubai to New York recently were taken ill with flu-like symptoms, the plane was understandably quarantined. It's not too hard to imagine how international travel could quickly help spread a new disease around the world. But surprisingly, grounding planes in such a situation might not always be the best strategy, and not just because of the economic impact.
https://phys.org/news/2018-09-game-theory-disease-outbreaks.html
Mathematics Wed, 12 Sep 2018 10:40:02 EDTnews455964236Mathematician uses dynamical ideas for insight into the geometry of a spaceSteven Frankel is not hungry. He just wants to talk about noodles.
https://phys.org/news/2018-09-mathematician-dynamical-ideas-insight-geometry.html
Mathematics Mon, 10 Sep 2018 10:59:27 EDTnews455795962Researchers outline game-theory approach to better understand geneticsPrinciples of game theory offer new ways of understanding genetic behavior, a pair of researchers has concluded in a new analysis appearing in the Journal of the Royal Society Interface. Its work opens the possibility of comprehending biological processes, and specifically biochemistry, through a new scientific lens.
https://phys.org/news/2018-09-outline-game-theory-approach-genetics.html
Mathematics Tue, 04 Sep 2018 19:10:01 EDTnews455297688How maths can answer questions we haven't thought of yetMaths is considered an instrument that produces correct answers to our questions about the universe. For example, maths can predict correctly that if you have two apples and eat an apple a day, they will last you precisely two days.
https://phys.org/news/2018-09-maths-havent-thought.html
Mathematics Tue, 04 Sep 2018 10:40:23 EDTnews455276418Mathematics can assist cities in addressing unstructured neighborhoodsNew mathematical models developed by the Department of Energy's Oak Ridge National Laboratory with collaborators at Sam Houston State University and the University of Chicago can help guide changes to the layout of poor urban neighborhoods to improve access to resources with minimum disruption and cost.
https://phys.org/news/2018-08-mathematics-cities-unstructured-neighborhoods.html
Mathematics Wed, 29 Aug 2018 14:00:03 EDTnews454745951Math shows how human behavior spreads infectious diseasesMathematics can help public health workers better understand and influence human behaviors that lead to the spread of infectious disease, according to a study from the University of Waterloo.
https://phys.org/news/2018-08-math-human-behavior-infectious-diseases.html
Mathematics Thu, 16 Aug 2018 03:26:14 EDTnews453608749How to cut queues at immigration – with mathsWhen going on holiday to a foreign country, there's one part of the journey that everybody dreads: border control. Everyone has to have their passport checked by an immigration official when entering a new country – and even when leaving some – so queues are almost inevitable.
https://phys.org/news/2018-08-immigration-maths.html
Mathematics Wed, 15 Aug 2018 09:47:34 EDTnews453545235Mathematicians solve age-old spaghetti mysteryIf you happen to have a box of spaghetti in your pantry, try this experiment: Pull out a single spaghetti stick and hold it at both ends. Now bend it until it breaks. How many fragments did you make? If the answer is three or more, pull out another stick and try again. Can you break the noodle in two? If not, you're in very good company.
https://phys.org/news/2018-08-mathematicians-age-old-spaghetti-mystery.html
Mathematics Mon, 13 Aug 2018 15:28:04 EDTnews453392870Mathematician discusses solving a seemingly unsolvable equationAfter 10 years, Prof. Raimar Wulkenhaar from the University of Münster's Mathematical Institute and his colleague Dr. Erik Panzer from the University of Oxford have solved a mathematical equation which was considered to be unsolvable. The equation is to be used to find answers to questions posed by elementary particle physics. In this interview with Christina Heimken, Wulkenhaar looks back on the challenges encountered in looking for the formula for a solution and he explains why the work is not yet finished.
https://phys.org/news/2018-08-mathematician-discusses-seemingly-unsolvable-equation.html
Mathematics Tue, 07 Aug 2018 10:40:01 EDTnews452857046Kurdish refugee wins 'Nobel of mathematics' Fields medal (Update)Kurdish refugee turned Cambridge University professor Caucher Birkar and an Italian who once preferred football to math on Wednesday were among four winners of the prestigious Fields medal, dubbed the Nobel prize for mathematics.
https://phys.org/news/2018-08-british-iranian-kurd-fields-math.html
Mathematics Wed, 01 Aug 2018 11:00:49 EDTnews452340040Statistics, computer science students collaborate on real-world data problems through mini-think tanksWhat is the difference between statistics and data science—and, perhaps more importantly, why do we have two fields with what seems to be the same focus? The best way to understand the emergence of data science as a separate discipline, explains Herman "Gene" Ray, director of the Center for Statistics and Analytical Research at Kennesaw State University, is to see data science as the merger of computer science and statistics. "Most traditional statistics programs teach you a lot of theory and how to work out problems by hand," he says. "Computer applications are something of an afterthought. But businesses aren't going to analyze 100 million records by hand; they're dealing with huge convenience samples. And that's where data science steps in."
https://phys.org/news/2018-07-statistics-science-students-collaborate-real-world.html
Mathematics Mon, 30 Jul 2018 10:36:45 EDTnews452165798Big changes at economic census will provide new insights into US economyEvery five years, the US Census Bureau conducts an economic census, providing official benchmark measures of American business and the economy. Despite being less well-known than the population census, the economic census—based on a representative sample of approximately 4 million businesses from about 400 industries—is vital to understanding how the nonagricultural sectors of the US economy are performing.
https://phys.org/news/2018-07-big-economic-census-insights-economy.html
Mathematics Mon, 30 Jul 2018 08:23:46 EDTnews452157803Lennon or McCartney? Can statistical analysis solve an authorship puzzle?Stylometry—the use of statistical techniques to determine authorship—is best known for identifying the Unabomber as Theodor Kaczynski and revealing that Shakespeare collaborated with Christopher Marlowe on the Henry IV play cycle. In textual analysis, it is not the unusual word choice that betrays the hidden voice, but the habitual—the recurring patterns of common words, such as prepositions, that mark the probable identity of one person alone.
https://phys.org/news/2018-07-lennon-mccartney-statistical-analysis-authorship.html
Mathematics Fri, 27 Jul 2018 11:40:02 EDTnews451907122Mathematical analysis explains transpiration-driven sap flow in coniferous treesThe exact science of tree sap transport has puzzled plant physiologists for many years. Sap's migration throughout tree trunks and branches is linked heavily to transpiration, the movement and subsequent evaporation of moisture from plants. As carbon dioxide diffuses inward from the air to plant leaves, a vapor pressure deficit between the leaf interior and surrounding atmosphere causes evaporation. This generates tension within leaf cell walls that is then transmitted via sap to tracheids—conductive hollow wood cells with vertical grooves that comprise the trunk, stem, and branches of trees and are collectively called sapwood. The resulting negative sap pressure draws water from roots to leaves, sometimes to heights of over 300 feet.
https://phys.org/news/2018-07-mathematical-analysis-transpiration-driven-sap-coniferous.html
Mathematics Thu, 26 Jul 2018 10:00:01 EDTnews451797316How number crunching can optimise crisp fryingOptimising the frying time of crisps may not be an obvious application of mathematics, but this is one of the problems delegates to the 138th European Study Group with Industry (ESGI) were asked to solve last week.
https://phys.org/news/2018-07-crunching-optimise-crisp.html
Mathematics Wed, 25 Jul 2018 12:06:53 EDTnews451739203Billions of dollars on AIDS prevention: Did any of it work?In January 2003, President George W. Bush asked Congress to back the President's Emergency Plan for AIDS Relief (PEPFAR) with a $15 billion commitment "to turn the tide against AIDS." Congress agreed, and the program—which was continued by the Obama and Trump administrations—has, as noted in The New England Journal of Medicine, "had an unprecedented impact on the pandemic of HIV and AIDS."
https://phys.org/news/2018-07-billions-dollars-aids.html
Mathematics Wed, 25 Jul 2018 07:00:01 EDTnews451197061'Stable marriages' between microbes, nutrients may explain diverse yet stable communitiesA mathematical model created by University of Illinois researchers could help scientists better understand an intriguing characteristic of microbial communities: their ability to achieve stability despite being so diverse.
https://phys.org/news/2018-07-stable-marriages-microbes-nutrients-diverse.html
Mathematics Mon, 23 Jul 2018 14:36:11 EDTnews451575355Alarming error common in survey analysesIt is difficult to understate the importance of survey data: They tell us who we are and—in the hands of policymakers—what to do.
https://phys.org/news/2018-07-alarming-error-common-survey-analyses.html
Mathematics Mon, 23 Jul 2018 10:50:01 EDTnews451561552Are star players over-rated in MLB? A key statistic—wins above replacement player—doesn't stand up to scrutinyIn football, soccer and basketball, player quality has one obvious and inescapable metric: scoring touch-downs, goals, points. In baseball, it's more complicated—it isn't easy to directly associate a single player's play with team wins. This is why "wins above replacement player" (WARP) has become so popular: It's a statistic that manages to aggregate a player's total contribution to their team—offense and defense and primary position—into one easily understood figure.
https://phys.org/news/2018-07-star-players-over-rated-mlb-key.html
Mathematics Thu, 19 Jul 2018 05:39:46 EDTnews451197563