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 Tue, 24 Nov 2009 17:05:01 EST Tue, 24 Nov 2009 17:05:01 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/2009/11/091123114632.htm Information field theory enables astronomers, medical practitioners and geologists to look into places where their measuring instruments are blind. Tue, 24 Nov 2009 08:00:00 EST http://www.sciencedaily.com/releases/2009/11/091123114632.htm http://www.sciencedaily.com/releases/2009/11/091119193809.htm A mathematical model has explained some of the remarkable features of mosquito hearing. In particular, the male can hear the faintest beats of the female's wings and yet is not deafened by loud noises. Sat, 21 Nov 2009 05:00:00 EST http://www.sciencedaily.com/releases/2009/11/091119193809.htm http://www.sciencedaily.com/releases/2009/11/091119193626.htm Children with fetal alcohol spectrum disorder (FASD) have a number of cognitive deficits. Mathematical ability seems particularly damaged in children with FASD. A new study supports the importance of the left parietal area for mathematical abilities in children with FASD. Fri, 20 Nov 2009 14:00:00 EST http://www.sciencedaily.com/releases/2009/11/091119193626.htm http://www.sciencedaily.com/releases/2009/11/091118160627.htm Engineering researchers have developed a unique and robust method to prevent cloning of passive radio frequency identification tags. The technology, based on one or more unique physical attributes of individual tags rather than information stored on them, will prevent the production of counterfeit tags and thus greatly enhance both security and privacy for government agencies, businesses and consumers. Thu, 19 Nov 2009 14:00:00 EST http://www.sciencedaily.com/releases/2009/11/091118160627.htm http://www.sciencedaily.com/releases/2009/11/091117202906.htm Money available to treat HIV/AIDS is sufficient to end the epidemic globally, but only if we act immediately to control the spread of the disease, according to new research. This approach defies conventional thinking, which recommends gradual spending over 15-20 years. The study was based on a mathematical model developed by mathematicians and biologists, who recently earned acclaim for a study on how best to handle a planetary invasion by zombies. Wed, 18 Nov 2009 20:00:00 EST http://www.sciencedaily.com/releases/2009/11/091117202906.htm http://www.sciencedaily.com/releases/2009/11/091116204229.htm An upgrade to a Cray XT5 high-performance computing system deployed by the Department of Energy has made the "Jaguar" supercomputer the world's fastest. Located at Oak Ridge National Laboratory, Jaguar is the scientific research community's most powerful computational tool for exploring solutions to some of today's most difficult problems. The upgrade, funded with $19.9 million under the Recovery Act, will enable scientific simulations for exploring solutions to climate change and the development of new energy technologies. Tue, 17 Nov 2009 08:00:00 EST http://www.sciencedaily.com/releases/2009/11/091116204229.htm http://www.sciencedaily.com/releases/2009/11/091111121358.htm Research into techniques of facial biometrics, carried out by scientists in Spain, has resulted in a system that is able to recognize the facial "DNA" of every individual by determining his/her most noteworthy facial traits, with a of 95% rate of precision. Mon, 16 Nov 2009 05:00:00 EST http://www.sciencedaily.com/releases/2009/11/091111121358.htm http://www.sciencedaily.com/releases/2009/11/091112191704.htm New software is under development that doctors hope will help them identify brain tumors in children that will grow aggressively. Sat, 14 Nov 2009 11:00:00 EST http://www.sciencedaily.com/releases/2009/11/091112191704.htm http://www.sciencedaily.com/releases/2009/11/091110135413.htm Mathematicians are coupling mathematical models with information about a baby's physiology inside the womb. Combining ultrasound with powerful algorithms based on real-life data, pediatricians get critical data on the development of the fetal circulatory system, so they can determine when the baby is strong enough to survive on its own. Tue, 10 Nov 2009 20:00:00 EST http://www.sciencedaily.com/releases/2009/11/091110135413.htm http://www.sciencedaily.com/releases/2009/11/091106195810.htm Economists presenting their annual forecast are confident that 2010 is going to be better than this year. Unfortunately, 2009 was "really, really awful." Some have declared that the national recession is over. Others have said that any economic progress will continue to be weakened by the aftermath of a historically severe downturn. Tue, 10 Nov 2009 08:00:00 EST http://www.sciencedaily.com/releases/2009/11/091106195810.htm http://www.sciencedaily.com/releases/2009/10/091027170850.htm A mathematician who has applied mathematical modeling techniques to elucidate the dynamics of run scoring in baseball has computed the probability of the Yankees and Phillies winning the World Series. He also has computed the most deserving of Major League Baseball's prestigious 2009 Most Valuable Player (MVP) and Cy Young awards. Wed, 28 Oct 2009 02:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091027170850.htm http://www.sciencedaily.com/releases/2009/10/091026152942.htm A new "Roadrunner Universe" model requires a petascale computer because, like the universe, it's mind-bendingly large. The model's basic unit is a particle with a mass of approximately one billion suns (in order to sample galaxies with masses of about a trillion suns), and it includes 64 billion and more of those particles. The model is one of the largest simulations of the distribution of matter in the universe, and aims to look at galaxy-scale mass concentrations above and beyond quantities seen in state-of-the-art sky surveys. Tue, 27 Oct 2009 14:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091026152942.htm http://www.sciencedaily.com/releases/2009/10/091026125535.htm The world's fastest supercomputer, Roadrunner, at Los Alamos National Laboratory has completed its initial "shakedown" phase doing accelerated petascale computer modeling and simulations of a variety of unclassified, fundamental science projects. Mon, 26 Oct 2009 20:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091026125535.htm http://www.sciencedaily.com/releases/2009/10/091022202710.htm A mathematical model constructed by researchers predicts the risk of cardiovascular disease (heart attacks, stroke) associated with low background levels of radiation. The model shows that the risk would vary almost in proportion with dose. Results are consistent with risk levels reported in previous studies involving nuclear workers. Fri, 23 Oct 2009 05:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091022202710.htm http://www.sciencedaily.com/releases/2009/08/090805150524.htm Predicting the infection patterns of influenzas requires tracking both the ecology and the evolution of the fast-morphing viruses that cause them, said a researcher who enlists computers to model such changes. Fri, 23 Oct 2009 02:00:00 EDT http://www.sciencedaily.com/releases/2009/08/090805150524.htm http://www.sciencedaily.com/releases/2009/10/091006121115.htm Mathematicians have developed powerful new tools for winnowing out the genes behind some of humanity's most intractable diseases. Mon, 19 Oct 2009 17:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091006121115.htm http://www.sciencedaily.com/releases/2009/10/091014102207.htm A team of scientists have demonstrated -- for the first time -- that mathematical models created from data obtained by DNA microarrays, can be used to correctly predict previously unknown cellular mechanisms. This brings biologists a step closer to one day being able to understand and control the inner workings of the cell as readily as NASA engineers plot the trajectories of spacecraft today. Mon, 19 Oct 2009 08:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091014102207.htm http://www.sciencedaily.com/releases/2009/10/091015094327.htm Researchers have developed the first mathematical model in cardiology and emergency medicine to more quickly and reliably diagnose acute heart failure in emergency room patients. Research findings have been shown to help physicians diagnose AHF with greater accuracy. Mon, 19 Oct 2009 08:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091015094327.htm http://www.sciencedaily.com/releases/2009/10/091013112526.htm Early action, especially rapid rollout of vaccines, is extremely effective in reducing the attack rate of the H1N1 influenza virus, according to a simulation model of a pandemic outbreak. Sun, 18 Oct 2009 17:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091013112526.htm http://www.sciencedaily.com/releases/2009/10/091013105640.htm What does it mean when expert psychiatric witnesses in a court case reach opposing conclusions on the same sets of evidence? A new study suggests via mathematical modeling that both analyses can be completely accurate. Thu, 15 Oct 2009 11:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091013105640.htm http://www.sciencedaily.com/releases/2009/10/091014144731.htm With the League Championship Series set to begin tomorrow, NJIT Mathematics Professor Bruce Bukiet has, once again, analyzed the probability of each team winning their post-season series. Bukiet updates his calculations daily during the Major League Baseball post-season. Thu, 15 Oct 2009 08:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091014144731.htm http://www.sciencedaily.com/releases/2009/10/091012084210.htm Study finds a statistical model can accurately predict which patients will have poor outcomes after bladder surgery and can determine the need for chemotherapy. Thu, 15 Oct 2009 05:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091012084210.htm http://www.sciencedaily.com/releases/2009/10/091006202858.htm Challenge a simple pocket calculator at arithmetic and you may be left in the dust. But even the most sophisticated computer cannot match the reasoning of a youngster who looks outside, sees a fresh snowfall, and knows how to bundle up for the frosty outdoors. For artificial intelligence scientists, enabling computers to have such human-level intelligence requires a commonsense knowledge base that can evolve and learn new things. But it's an elusive goal. Sun, 11 Oct 2009 17:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091006202858.htm http://www.sciencedaily.com/releases/2009/10/091008143005.htm Mathematicians and life scientists say they have identified the signal that the brain sends to the rest of the body to control biological rhythms, a finding that overturns a long-held theory about our internal clock. Fri, 09 Oct 2009 02:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091008143005.htm http://www.sciencedaily.com/releases/2009/10/091007103026.htm Recent bank failures point to the continuing need for vigilance by regulators and investors. Now, a new report discusses the possibility of an early-warning system that spots the outliers before they fail. Thu, 08 Oct 2009 20:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091007103026.htm http://www.sciencedaily.com/releases/2009/10/091005161122.htm Using a mathematical model to predict population trends based on ancient coin hoards, a biologist and a historian have concluded that the population of ancient Rome was smaller than sometimes suggested. Although the first century BC in Italy has been extensively studied, and much is known about the great figures of the era, including Cicero, Caesar, Virgil, and Horace, some basic facts -- such as the approximate population size of the late Roman Republic -- remain the subject of intense debate. Tue, 06 Oct 2009 05:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091005161122.htm http://www.sciencedaily.com/releases/2009/09/090927152049.htm The human brain is made up of 100 billion neurons -- live wires that must be kept in delicate balance to stabilize the world's most magnificent computing organ. Too much excitement and the network will slip into an apoplectic, uncomprehending chaos. Too much inhibition and it will flatline. A new mathematical model describes how the trillions of interconnections among neurons could maintain a stable but dynamic relationship that leaves the brain sensitive enough to respond to stimulation without veering into a blind seizure. Sun, 04 Oct 2009 17:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090927152049.htm http://www.sciencedaily.com/releases/2009/10/091002105001.htm The human brain has evolved over millions of years to become a vast network of billions of neurons and synaptic connections. Understanding it is one of humankind's greatest pursuits. But to understand how the brain processes information, researchers must first understand the very basics of neurons -- even down to how proteins inside the neurons act to change the neuron's voltage. To do so requires a balance of experimentation and computer modeling. Sat, 03 Oct 2009 17:00:00 EDT http://www.sciencedaily.com/releases/2009/10/091002105001.htm http://www.sciencedaily.com/releases/2009/09/090930165034.htm Researchers have started using computational models of the brain, making it easier to study the brain's connections. An electrical and computer engineering doctoral student has discovered new evidence on how the brain reacts to fear, including important findings that could help victims of post-traumatic stress disorder. Thu, 01 Oct 2009 05:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090930165034.htm http://www.sciencedaily.com/releases/2009/09/090921162144.htm Scientists expect a new mathematical model of chronic wound healing could replace intuition with clear guidance on how to test treatment strategies in tackling a major public-health problem. The researchers are the first to publish a mathematical model of an ischemic wound -- a chronic wound that heals slowly or is in danger of never healing because it is fed by an inadequate blood supply. Mon, 28 Sep 2009 14:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090921162144.htm http://www.sciencedaily.com/releases/2009/09/090927130038.htm You're not as different from Albert Einstein and Charles Darwin after all, at least when it comes to patterns of correspondence. A new study of human behavior has determined that those who wrote letters using pen and paper -- long before electronic mail existed -- did so in a pattern similar to the way people use e-mail today. The probability model provides some insight into how people make choices. Mon, 28 Sep 2009 11:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090927130038.htm http://www.sciencedaily.com/releases/2009/09/090922160104.htm Researchers are utilizing computational models to study how the brain's chemicals and synaptic mechanisms, or connections between neurons, react to cocaine addiction and what this could mean for future therapies. Wed, 23 Sep 2009 14:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090922160104.htm http://www.sciencedaily.com/releases/2009/09/090922160108.htm The precise conditions inside a white dwarf star in the hours leading up to its explosive end as a Type Ia supernova are one of the mysteries confronting astrophysicists studying these massive stellar explosions. Now astrophysicists and mathematicians have created the first full-star simulation of the hours preceding the largest thermonuclear explosions in the universe. Wed, 23 Sep 2009 08:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090922160108.htm http://www.sciencedaily.com/releases/2009/09/090922095651.htm Mathematicians have resolved the first one trillion cases of an ancient mathematics problem. The advance was made possible by a clever new computational technique for multiplying large numbers. The numbers involved are so enormous that if their digits were written out by hand they would stretch to the moon and back. Tue, 22 Sep 2009 20:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090922095651.htm http://www.sciencedaily.com/releases/2009/09/090911114155.htm Information in social networks moves at an unexpectedly slow pace, with the exception of some mass events. This is one of the main conclusions of a study carried out by researchers in Spain and IBM, who analyze how the behaviour of online users influences the spread of information through the Internet. Mon, 21 Sep 2009 11:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090911114155.htm http://www.sciencedaily.com/releases/2009/09/090915100943.htm Using information from the longitudinal study of early care and youth development, researchers found that children who spent more time in high-quality child care in the first five years of their lives had better math and reading scores in middle childhood. Researchers also found that low-income children who attended high-quality child care programs before the age of five performed similarly to their affluent peers. These findings have implications for the role of child care in the creation of anti-poverty policies. Thu, 17 Sep 2009 14:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090915100943.htm http://www.sciencedaily.com/releases/2009/09/090914111100.htm A new study has demonstrated that researchers trying to model a range of processes could use the power and capabilities of a particular XBox chip as a much cheaper alternative to other forms of parallel processing hardware. Tue, 15 Sep 2009 17:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090914111100.htm http://www.sciencedaily.com/releases/2009/08/090810174211.htm Researchers have developed a virtual surgery tool that allows heart surgeons to manipulate 3-D cardiac magnetic resonance images of a patient's specific anatomy to select the best approach for each patient before entering the operating room. In a new study, the researchers detail how the tool helped them plan the surgery of a 4-year-old girl born with just one functional ventricle instead of two. Sat, 12 Sep 2009 05:00:00 EDT http://www.sciencedaily.com/releases/2009/08/090810174211.htm http://www.sciencedaily.com/releases/2009/09/090902122441.htm The use of digital data analysis within law enforcement is not simple. For example, how can you predict if somebody is a terrorist? A Dutch researcher has developed a model that makes digital data analysis more reliable. Fri, 11 Sep 2009 20:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090902122441.htm http://www.sciencedaily.com/releases/2009/09/090907142510.htm European researchers have created a legal analysis query engine that combines artificial intelligence, game theory and semantics to offer advice, conflict prevention and dispute settlement for European law, and it even supports policy. Tue, 08 Sep 2009 23:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090907142510.htm http://www.sciencedaily.com/releases/2009/09/090903165013.htm Researchers have developed a new computer model that can be used as a design tool for automotive designers to help ensure that vehicle designs can accommodate the safety needs of pregnant occupants. Sat, 05 Sep 2009 17:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090903165013.htm http://www.sciencedaily.com/releases/2009/09/090901172836.htm Engineers have devised innovative computer software that can sift through hundreds of genetic mutations and highlight the DNA changes that are most likely to promote cancer. Wed, 02 Sep 2009 23:00:00 EDT http://www.sciencedaily.com/releases/2009/09/090901172836.htm http://www.sciencedaily.com/releases/2009/08/090820161140.htm A researcher has developed a mathematical model that calls into question whether current federal guidelines on seasonal and swine flu vaccines are targeting the correct populations and preventing both the spread of and complications from the viruses. Mon, 24 Aug 2009 05:00:00 EDT http://www.sciencedaily.com/releases/2009/08/090820161140.htm http://www.sciencedaily.com/releases/2009/08/090813202124.htm Scientists have developed a quantitative, mathematical model of DNA replication and cell division for the bacterium Caulobacter crescentus. Sat, 22 Aug 2009 17:00:00 EDT http://www.sciencedaily.com/releases/2009/08/090813202124.htm http://www.sciencedaily.com/releases/2009/08/090807091202.htm New semantics-based software tools that accelerate the speed companies can develop or adjust their processes – while slashing costs – have resulted from a major research project. Tue, 18 Aug 2009 05:00:00 EDT http://www.sciencedaily.com/releases/2009/08/090807091202.htm http://www.sciencedaily.com/releases/2009/08/090814100103.htm We see, hear and feel, and make sense of countless diverse, quickly changing stimuli in our environment seemingly without effort. However, doing what our brains do with ease is often an impossible task for computers. Sun, 16 Aug 2009 11:00:00 EDT http://www.sciencedaily.com/releases/2009/08/090814100103.htm http://www.sciencedaily.com/releases/2009/08/090812143943.htm Two researchers have made a major advance in addressing a twist in the packing problem, jamming more tetrahedra -- solid figures with four triangular faces -- and other polyhedral solid objects than ever before into a space. The work could result in better ways to store data on compact discs as well as a better understanding of matter itself. Sat, 15 Aug 2009 05:00:00 EDT http://www.sciencedaily.com/releases/2009/08/090812143943.htm http://www.sciencedaily.com/releases/2009/08/090811143958.htm By successively acquiring culture in the form of values, ideas, and actions throughout their lives, humans influence future learning and the capacity for cultural evolution. The number of learning opportunities a person is exposed to is of great importance to that individual’s cultural evolution during his/her lifetime, according to researchers in Sweden. With the aid of mathematical models, these scientists show that there are differences between cultural and biological evolution. Fri, 14 Aug 2009 20:00:00 EDT http://www.sciencedaily.com/releases/2009/08/090811143958.htm