http://www.sciencedaily.com/news/computers_math/mathematical_modeling/ Math modeling. Browse research on mathematical models. Read about math models explaining the shape of the ear, stock performance, musical expression, diseases and more. en-us Wed, 15 Feb 2012 19:05:01 EST Wed, 15 Feb 2012 19:05:01 EST 60 http://www.sciencedaily.com/images/logosmall.gif http://www.sciencedaily.com/news/computers_math/mathematical_modeling/ For more science articles, visit ScienceDaily. http://www.sciencedaily.com/releases/2012/02/120214134620.htm Women with advanced degrees in math-intensive academic fields drop out of fast-track research careers primarily because they want children – not because their performance is devalued or they are shortchanged during interviewing and hiring, according to a new study. Tue, 14 Feb 2012 13:46:46 EST http://www.sciencedaily.com/releases/2012/02/120214134620.htm http://www.sciencedaily.com/releases/2012/02/120209172924.htm A new study examines several options for managing the emerald ash borer, an invasive insect that is destroying US ash trees. Thu, 09 Feb 2012 17:29:29 EST http://www.sciencedaily.com/releases/2012/02/120209172924.htm http://www.sciencedaily.com/releases/2012/02/120209135331.htm Economists have developed a financial market "seismograph" that can measure the interconnections between stock markets across the globe. Their research has the potential to serve as an early warning system and provide measures to manage and mitigate the spread of financial crisis. Thu, 09 Feb 2012 13:53:53 EST http://www.sciencedaily.com/releases/2012/02/120209135331.htm http://www.sciencedaily.com/releases/2012/02/120202201735.htm The world can deliver sudden and nasty shocks. Economies can crash, fisheries can collapse, and climates can pass tipping points. Providing early warning of such changes currently requires the collection of enormous and often prohibitive amounts of data. A new method could change this. In a newly published paper, researchers present a mathematical methodology that uses easily obtainable information to greater effect and can therefore reduce the amount of additional data that needs to be collected. Thu, 02 Feb 2012 20:17:17 EST http://www.sciencedaily.com/releases/2012/02/120202201735.htm http://www.sciencedaily.com/releases/2012/01/120130093921.htm Scientists have created a new algorithm to detect virtual communities, designed to match the needs of real-life social, biological or information networks detection better than with current attempts. Mon, 30 Jan 2012 09:39:39 EST http://www.sciencedaily.com/releases/2012/01/120130093921.htm http://www.sciencedaily.com/releases/2012/01/120126224513.htm Scientists have developed a novel computer model describing how future hurricanes and sea level rise may trigger changes to South Florida's native coastal forests. Thu, 26 Jan 2012 22:45:45 EST http://www.sciencedaily.com/releases/2012/01/120126224513.htm http://www.sciencedaily.com/releases/2012/01/120125172312.htm NBA players may be too conservative with their shots, according to a comparison with a theoretical model describing shot selection. Wed, 25 Jan 2012 17:23:23 EST http://www.sciencedaily.com/releases/2012/01/120125172312.htm http://www.sciencedaily.com/releases/2012/01/120122104630.htm The prevalence of computer networks for sharing resources places increasingly high requirements on the reliability of data centers. The simplest way to diagnose abnormalities in these systems is to monitor the output of each component but this is not always effective. Sun, 22 Jan 2012 10:46:46 EST http://www.sciencedaily.com/releases/2012/01/120122104630.htm http://www.sciencedaily.com/releases/2012/01/120118173240.htm For some time, researchers have explored flammable ice for low-carbon or alternative fuel or as a place to store carbon dioxide. Now, a computer analysis of the ice and gas compound, known as a gas hydrate, reveals key details of its structure. The results show that hydrates can hold hydrogen at an optimal capacity of 5 weight-percent, a value that meets the goal of a U.S. Department of Energy standard and makes gas hydrates practical and affordable. Wed, 18 Jan 2012 17:32:32 EST http://www.sciencedaily.com/releases/2012/01/120118173240.htm http://www.sciencedaily.com/releases/2012/01/120104134806.htm Saturn's largest moon, Titan, is an alien world covered in a thick atmosphere with abundant methane. Titan boasts methane clouds and fog, as well as rainstorms and plentiful lakes of liquid methane. The origins of many of these features, however, remain puzzling to scientists. Now, researchers have developed a computer model of Titan's atmosphere and methane cycle that, for the first time, explains many of these phenomena in a relatively simple and coherent way. Wed, 04 Jan 2012 13:48:48 EST http://www.sciencedaily.com/releases/2012/01/120104134806.htm http://www.sciencedaily.com/releases/2011/12/111221091922.htm A question confronting neuroscientists and computer vision researchers alike is how objects can be identified by simply "looking" at an image. But teaching a computer to "know" what it's looking at is far harder. Scientists have now modeled human brain structure to develop better programming approaches for computer object identification. Wed, 21 Dec 2011 09:19:19 EST http://www.sciencedaily.com/releases/2011/12/111221091922.htm http://www.sciencedaily.com/releases/2011/12/111215095454.htm New encryption research may lead to improved data security, even for operations performed on remote servers. Thu, 15 Dec 2011 09:54:54 EST http://www.sciencedaily.com/releases/2011/12/111215095454.htm http://www.sciencedaily.com/releases/2011/12/111212153123.htm A major study of recent international data on school mathematics performance casts doubt on some common assumptions about gender and math achievement -- in particular, the idea that girls and women have less ability due to a difference in biology. Mon, 12 Dec 2011 15:31:31 EST http://www.sciencedaily.com/releases/2011/12/111212153123.htm http://www.sciencedaily.com/releases/2011/12/111204144700.htm Life scientists have produced the most comprehensive mathematical model ever devised to track the health of populations exposed to environmental change. Sun, 04 Dec 2011 14:47:47 EST http://www.sciencedaily.com/releases/2011/12/111204144700.htm http://www.sciencedaily.com/releases/2011/12/111201174202.htm In many fields of applied science, such as geology, there are often tensions and disagreements between scientists who specialize in analyses of problems using mathematical models to describe sets of collected data, and those that rely on on-the-ground observations and empirical analyses. Thu, 01 Dec 2011 17:42:42 EST http://www.sciencedaily.com/releases/2011/12/111201174202.htm http://www.sciencedaily.com/releases/2011/12/111201094802.htm As sophisticated as modern climate models are, one critical component continues to elude their precision -- clouds. Clouds modulate the climate. Experts agree that getting their effect on the climate system correct is critical to increasing confidence in projections of future climate change. To build the breakthrough supercomputers that these researchers need, computer scientists are taking a cue from the world of consumer electronics. Thu, 01 Dec 2011 09:48:48 EST http://www.sciencedaily.com/releases/2011/12/111201094802.htm http://www.sciencedaily.com/releases/2011/11/111121194037.htm Scientists have designed a first draft of a mathematical model that someday could guide treatment decisions for advanced prostate cancer, in part by helping doctors predict how individual patients will respond to therapy based on the biology of their tumors. These decisions would apply to treatment of cancer that has already spread beyond the prostate gland or that has recurred after initial treatments, such as surgery or radiation. Mon, 21 Nov 2011 19:40:40 EST http://www.sciencedaily.com/releases/2011/11/111121194037.htm http://www.sciencedaily.com/releases/2011/11/111117144043.htm Scientists have now discovered how bacteria collectively gather information to learn about their environment and find an optimal path to growth. This research will allow scientists to design a new generation of "smart robots" that can form intelligent swarms and aid in the development of medical micro-robots used to treat diseases in the human body. Thu, 17 Nov 2011 14:40:40 EST http://www.sciencedaily.com/releases/2011/11/111117144043.htm http://www.sciencedaily.com/releases/2011/11/111115103518.htm For decades, scientists have dreamed of building computer systems that could replicate the human brain's talent for learning new tasks. Researchers have now taken a major step toward that goal by designing a computer chip that mimics how the brain's neurons adapt in response to new information. This phenomenon, known as plasticity, is believed to underlie many brain functions, including learning and memory. Tue, 15 Nov 2011 10:35:35 EST http://www.sciencedaily.com/releases/2011/11/111115103518.htm http://www.sciencedaily.com/releases/2011/11/111109143011.htm Computer scientists and pathologists are training computers to analyze breast cancer microscopic images. The computer analysis were more accurate than those conducted by humans. Wed, 09 Nov 2011 14:30:30 EST http://www.sciencedaily.com/releases/2011/11/111109143011.htm http://www.sciencedaily.com/releases/2011/11/111109115651.htm The brain likes stereotypes -- at least for movements. Simple actions are most often performed in the same manner. A mathematical model explains why this is the case and could be used to generate more natural robot movements and to adapt prosthetic movements. Wed, 09 Nov 2011 11:56:56 EST http://www.sciencedaily.com/releases/2011/11/111109115651.htm http://www.sciencedaily.com/releases/2011/11/111106151459.htm Whether a species can evolve to survive climate change may depend on the biodiversity of its ecological community, according to a new mathematical model that simulates the effect of climate change on plants and pollinators. Sun, 06 Nov 2011 15:14:14 EST http://www.sciencedaily.com/releases/2011/11/111106151459.htm http://www.sciencedaily.com/releases/2011/10/111031220609.htm From the dotcom bust in the late nineties to the housing crash in the run-up to the 2008 crisis, financial bubbles have been a topic of major concern. Identifying bubbles is important in order to prevent collapses that can severely impact nations and economies. A mathematical model has now been proposed for the detection of financial bubbles in order to prevent their collapse. Mon, 31 Oct 2011 22:06:06 EDT http://www.sciencedaily.com/releases/2011/10/111031220609.htm http://www.sciencedaily.com/releases/2011/10/111028103217.htm A milestone in the description of complex processes -- for example the ups and downs of share prices -- has been reached by mathematicians. Researchers have developed a new method in spectral analysis, which allows a classical mathematical model assumption, so-called stationarity, to be precisely measured and determined for the first time. The approach also makes it possible to construct statistical tests that are considerably better and more accurate than previous methods. Fri, 28 Oct 2011 10:32:32 EDT http://www.sciencedaily.com/releases/2011/10/111028103217.htm http://www.sciencedaily.com/releases/2011/10/111020024131.htm Using brain-imaging technology for the first time with people experiencing mathematics anxiety, scientists have gained new insights into how some students are able to overcome their fears and succeed in math. For the highly math anxious, researchers found a strong link between math success and activity in a network of brain areas in the frontal and parietal lobes involved in controlling attention and regulating negative emotional reactions. Thu, 20 Oct 2011 02:41:41 EDT http://www.sciencedaily.com/releases/2011/10/111020024131.htm http://www.sciencedaily.com/releases/2011/10/111019210130.htm With Major League Baseball's World Series set to begin tomorrow, math professor Bruce Bukiet has once again analyzed the players most deserving of winning baseball's most important awards for the 2011 season. He also provides the probability of Texas Rangers and St. Louis Cardinals winning the World Series. Wed, 19 Oct 2011 21:01:01 EDT http://www.sciencedaily.com/releases/2011/10/111019210130.htm http://www.sciencedaily.com/releases/2011/10/111017214919.htm When engineers outfitted a six-legged robotic bug with wings in an effort to improve its mobility, they unexpectedly shed some light on the evolution of flight. The wings nearly doubled the running speed of the 25-gram robot, but was that good enough for takeoff? Mon, 17 Oct 2011 21:49:49 EDT http://www.sciencedaily.com/releases/2011/10/111017214919.htm http://www.sciencedaily.com/releases/2011/10/111014104946.htm Virtual brains modeling epilepsy and schizophrenia display less complexity among functional connections, and other differences compared to healthy brain models, researchers report. The researchers worked backward from brain rhythms -- the oscillating patterns of electrical activity in the brain recorded on electroencephalograms -- from both healthy and ill individuals. Fri, 14 Oct 2011 10:49:49 EDT http://www.sciencedaily.com/releases/2011/10/111014104946.htm http://www.sciencedaily.com/releases/2011/10/111013162937.htm Scientists have taken a major step toward developing robot biologists. They have shown that their system, the Automated Biology Explorer, can solve a complicated biology problem from scratch. Thu, 13 Oct 2011 16:29:29 EDT http://www.sciencedaily.com/releases/2011/10/111013162937.htm http://www.sciencedaily.com/releases/2011/10/111011132052.htm The Major League Baseball Division Series is underway and math professors have once again analyzed the probability of each team advancing to the World Series. Tue, 11 Oct 2011 13:20:20 EDT http://www.sciencedaily.com/releases/2011/10/111011132052.htm http://www.sciencedaily.com/releases/2011/10/111011102111.htm In a two-month summer course on high-performance computing, promising undergrads compete to create innovative applications. This summer's winner developed a touchscreen Braille writer that stands to revolutionize how the blind negotiate an unseen world by replacing devices costing up to 10 times more. Tue, 11 Oct 2011 10:21:21 EDT http://www.sciencedaily.com/releases/2011/10/111011102111.htm http://www.sciencedaily.com/releases/2011/10/111010083438.htm Chance and probability play a natural role in statistical physics. Inspired by confetti, researchers in Sweden are gaining better understanding of random phenomena and refine the tools that can be used to study them. Mon, 10 Oct 2011 08:34:34 EDT http://www.sciencedaily.com/releases/2011/10/111010083438.htm http://www.sciencedaily.com/releases/2011/10/111006132955.htm New software lets researchers see how the immune system responds to pathogens that invade the bacteria-rich environment of the gut. Thu, 06 Oct 2011 13:29:29 EDT http://www.sciencedaily.com/releases/2011/10/111006132955.htm http://www.sciencedaily.com/releases/2011/10/111005143724.htm Carefully tracking the rate of response of human lung tumors during the first weeks of treatment can predict which cancers will undergo sustained regression, suggests a new study. Wed, 05 Oct 2011 14:37:37 EDT http://www.sciencedaily.com/releases/2011/10/111005143724.htm http://www.sciencedaily.com/releases/2011/10/111004113751.htm A new study using MRI scans has found that depression frequently seems to uncouple the brain's 'hate circuit'. Tue, 04 Oct 2011 11:37:37 EDT http://www.sciencedaily.com/releases/2011/10/111004113751.htm http://www.sciencedaily.com/releases/2011/09/110929161335.htm Proper planning before the introduction of new vaccines into a developing country's active immunization program could prevent storage problems and transportation bottlenecks that decrease the availability of existing vaccines by as much as two-thirds, according to a new study. Computational models can forecast the impact of new vaccine introduction and identify potential disruptions, concluded the study. Thu, 29 Sep 2011 16:13:13 EDT http://www.sciencedaily.com/releases/2011/09/110929161335.htm http://www.sciencedaily.com/releases/2011/09/110918144955.htm Online gamers have solved the structure of a retrovirus enzyme whose configuration had stumped scientists for over a decade. This is the first instance that researchers are aware of in which gamers solved a longstanding scientific problem. The discovery was achieved through Foldit, which allows players to collaborate and compete in predicting protein molecule structures. Foldit is an example of engaging the public in scientific discovery by using games to solve hard problems that can't be solved by either people or computers alone. Sun, 18 Sep 2011 14:49:49 EDT http://www.sciencedaily.com/releases/2011/09/110918144955.htm http://www.sciencedaily.com/releases/2011/09/110915113629.htm A new mathematical model mimics the process of speech and noise recognition in the human brain efficiently. It may explain experimental findings that remained unclear so far. Thu, 15 Sep 2011 11:36:36 EDT http://www.sciencedaily.com/releases/2011/09/110915113629.htm http://www.sciencedaily.com/releases/2011/09/110914171751.htm A new study reports that the precision with which preschoolers estimate quantities, prior to any formal education in mathematics, predicts their mathematics ability in elementary school, according to researchers. Wed, 14 Sep 2011 17:17:17 EDT http://www.sciencedaily.com/releases/2011/09/110914171751.htm http://www.sciencedaily.com/releases/2011/09/110912143355.htm Researchers have developed a way to measure how badly a Wi-Fi network would be disrupted by different types of attacks -- a valuable tool for developing new security technologies. Mon, 12 Sep 2011 14:33:33 EDT http://www.sciencedaily.com/releases/2011/09/110912143355.htm http://www.sciencedaily.com/releases/2011/09/110906144602.htm A new article combines advanced supercomputing with a quarter-century of worldwide news to forecast and visualize human behavior, from civil unrest to the movement of individuals. Tue, 06 Sep 2011 14:46:46 EDT http://www.sciencedaily.com/releases/2011/09/110906144602.htm http://www.sciencedaily.com/releases/2011/08/110831160224.htm Researchers have developed an accurate computer model to test the effects of medications for arrhythmia, or abnormal heart rhythm, before they are used in patients. Wed, 31 Aug 2011 16:02:02 EDT http://www.sciencedaily.com/releases/2011/08/110831160224.htm http://www.sciencedaily.com/releases/2011/08/110829114908.htm Human language can appear to be a chaotic and confusing jumble of words. Fortunately, order -- or loss of entropy -- may increase in a predictable and mathematically consistent manner if communication lines are left open long enough. Mon, 29 Aug 2011 11:49:49 EDT http://www.sciencedaily.com/releases/2011/08/110829114908.htm http://www.sciencedaily.com/releases/2011/08/110828210837.htm It may be possible to eliminate the deadly dengue fever by infecting mosquitoes with a bacterium called Wolbachia that prevents the mosquitoes from transmitting the dengue virus to humans. A new mathematical model may be helpful in getting the bacteria established in mosquito populations. Sun, 28 Aug 2011 21:08:08 EDT http://www.sciencedaily.com/releases/2011/08/110828210837.htm http://www.sciencedaily.com/releases/2011/08/110825193104.htm Researchers have created a mathematical model -- and an accompanying online weight simulation tool -- of what happens when people of varying weights, diets and exercise habits try to change their weight. The findings challenge the commonly held belief that eating 3,500 fewer calories -- or burning them off exercising -- will always result in a pound of weight loss. Thu, 25 Aug 2011 19:31:31 EDT http://www.sciencedaily.com/releases/2011/08/110825193104.htm http://www.sciencedaily.com/releases/2011/08/110825135144.htm A new study of stock trading during the financial crisis of 2007 to 2009 found that hedge funds sold their stocks much more aggressively than mutual funds at the first signs of poor performance. These sell-offs occurred in response to falling stock values, the study found. Hedge fund investors withdrew almost three times as much of the money they invested as compared to mutual fund investors. Thu, 25 Aug 2011 13:51:51 EDT http://www.sciencedaily.com/releases/2011/08/110825135144.htm http://www.sciencedaily.com/releases/2011/08/110825124254.htm A new mathematical model has applications to the study of gas kicks in deep-water oil wells, which in worst-case scenarios can lead to blowouts. Thu, 25 Aug 2011 12:42:42 EDT http://www.sciencedaily.com/releases/2011/08/110825124254.htm http://www.sciencedaily.com/releases/2011/08/110825123832.htm Statisticians point out that medical and other observational studies often produce results that are later shown to be incorrect. They now suggest ways to fix the system. Thu, 25 Aug 2011 12:38:38 EDT http://www.sciencedaily.com/releases/2011/08/110825123832.htm http://www.sciencedaily.com/releases/2011/08/110822121718.htm Efforts to improve traffic safety have been aided by mathematical models that allow researchers to better assess those factors that impact the degree of injury suffered as a result of traffic crashes, researchers say. Mon, 22 Aug 2011 12:17:17 EDT http://www.sciencedaily.com/releases/2011/08/110822121718.htm http://www.sciencedaily.com/releases/2011/08/110818130210.htm Synchronization occurs when individual elements in a complex network behave in line with each other. This applies to real-life examples such as the way neurons fire during an epileptic seizure or the phenomenon of crickets falling into step with one another. Thu, 18 Aug 2011 13:02:02 EDT http://www.sciencedaily.com/releases/2011/08/110818130210.htm http://www.sciencedaily.com/releases/2011/08/110817120228.htm Whenever crisis threatens the financial markets, voices are loud in calling for greater control. It is dubious, however, whether tighter regulation would actually offer investors better protection against losing their capital, economists argue in a new historical review of the markets. Wed, 17 Aug 2011 12:02:02 EDT http://www.sciencedaily.com/releases/2011/08/110817120228.htm http://www.sciencedaily.com/releases/2011/08/110817092218.htm Using iPad™ mobile devices, emergency preparedness officials and first responders participating in an exercise, were able, for the first time, to make use of a new, science-based software tool that allows them to view and modify accurate models of building damage and other post-event disaster effects. Wed, 17 Aug 2011 09:22:22 EDT http://www.sciencedaily.com/releases/2011/08/110817092218.htm http://www.sciencedaily.com/releases/2011/08/110816144041.htm A new article identifies the social-welfare benefits of open source software, despite the existence of free-riding that is inherent in the industry due to information-sharing. The market creates spillover benefits for both consumers and producers. Tue, 16 Aug 2011 14:40:40 EDT http://www.sciencedaily.com/releases/2011/08/110816144041.htm http://www.sciencedaily.com/releases/2011/08/110812163053.htm Most lab rats have to be housed, fed and bred. But not the group one researcher has in mind for his new systems biology center. They'll be virtual. Fri, 12 Aug 2011 16:30:30 EDT http://www.sciencedaily.com/releases/2011/08/110812163053.htm http://www.sciencedaily.com/releases/2011/08/110811181721.htm A computer model of the spread of West Nile virus was able to predict areas where human cases would be concentrated, especially around Sacramento in 2005. The success of the model, say researchers, depended on its focus on biological factors and on a high volume of reports from members of the public. Thu, 11 Aug 2011 18:17:17 EDT http://www.sciencedaily.com/releases/2011/08/110811181721.htm http://www.sciencedaily.com/releases/2011/08/110811083814.htm Just as the rainy season is driving a new surge of cholera cases in Haiti, a new computational model could forecast where outbreaks are likely to occur. Researchers hope to target anti-cholera efforts where they are most needed in the earthquake-ravaged country. Thu, 11 Aug 2011 08:38:38 EDT http://www.sciencedaily.com/releases/2011/08/110811083814.htm http://www.sciencedaily.com/releases/2011/08/110809104314.htm Flashing a wink and a smirk might be second nature for some people, but computer animators can be hard-pressed to depict such an expression realistically. Now scientists have created computerized models derived from actors' faces that reflect a full range of natural expressions while also giving animators the ability to manipulate facial poses. Tue, 09 Aug 2011 10:43:43 EDT http://www.sciencedaily.com/releases/2011/08/110809104314.htm http://www.sciencedaily.com/releases/2011/08/110808152428.htm We accept that some people are born with a talent for music or art or athletics. But what about mathematics? Do some of us just arrive in the world with better math skills than others? It seems we do, at least according to the results of a new study. The research indicates that math ability in preschool children is strongly linked to their inborn and primitive "number sense," called an "Approximate Number System" or ANS. Mon, 08 Aug 2011 15:24:24 EDT http://www.sciencedaily.com/releases/2011/08/110808152428.htm http://www.sciencedaily.com/releases/2011/08/110808104521.htm Self-directed learning has long been heralded as the key to successful education. Yet until now, there has been little research into this theory. Educational researchers in Germany have now shown that schoolchildren can independently develop strategies for solving complex mathematical tasks, with weaker students proving just as capable as their stronger classmates. Mon, 08 Aug 2011 10:45:45 EDT http://www.sciencedaily.com/releases/2011/08/110808104521.htm http://www.sciencedaily.com/releases/2011/08/110808083655.htm Do fish swimming in schools or birds flying in flocks have a collective spirit that enables them to move as one? Are they animals with highly developed cognition, a complex instinct or a telepathic gift? A recent study conducted researchers in the Netherlands points in another direction. Mathematical models of self-organization show that complicated collective behavior can be the consequence of a few simple behavioral rules. Mon, 08 Aug 2011 08:36:36 EDT http://www.sciencedaily.com/releases/2011/08/110808083655.htm