Mathematical Modeling

Mathematical Modeling News -- ScienceDaily Math modeling. Browse research on mathematical models. Read about math models explaining the shape of the ear, stock performance, musical expression, diseases and more.

  • Reversing cause and effect is no trouble for quantum computers
    on July 19, 2018 at 1:44 pm

    Scientists show that a quantum computer is less in thrall to the arrow of time than a classical computer. […]

  • Do we really buy 'top-rated' deals online? New research may surprise you
    on July 11, 2018 at 10:27 pm

    Anyone who shops online is familiar with those 'top-rated' products or services that rise to the top of their search on e-commerce intermediary sites like Amazon or Expedia. So, do those rankings really help those products or services get sold? According to a new study, the answer is, 'yes' and 'no.' […]

  • Challenging the conventional wisdom on calculus
    on July 10, 2018 at 10:53 pm

    Contrary to widely-held opinion, taking high school calculus isn't necessary for success later in college calculus -- what's more important is mastering the prerequisites, algebra, geometry, and trigonometry -- that lead to calculus. That's according to a study of more than 6,000 college freshmen at 133 colleges. […]

  • Genome's gyrations fit right into new model
    on July 9, 2018 at 8:15 pm

    Computer models show that energy landscape theory can predict not only the form of DNA contained in a cell's nucleus during interphase, but also its dynamic behavior. The model also revealed DADs -- chromatin domains that behave coherently. […]

  • 'Breakthrough' algorithm exponentially faster than any previous one
    on June 28, 2018 at 5:11 pm

    Computer scientists have developed a completely new kind of algorithm, one that exponentially speeds up computation by dramatically reducing the number of parallel steps required to reach a solution. […]

  • Control of quantum state of optical phonon in diamond induced by ultrashort light pulses
    on June 25, 2018 at 11:27 pm

    Ultrashort Light-pulse-induced vibrations of atoms in a lattice, called optical coherent phonons, have been controlled in various materials. However, different experiments demonstrating such control have been explained differently through empirical theories, and a unified theory based on quantum mechanics is lacking. Scientists have now successfully formulated a unified theory for this phenomenon and experimentally verified it in diamond, the optical phonons of which have great potential for application in quantum information technology […]

  • Engineering bacteria to exhibit stochastic Turing patterns
    on June 21, 2018 at 4:18 pm

    A new study has brought science one step closer to a molecular-level understanding of how patterns form in living tissue. The researchers engineered bacteria that, when incubated and grown, exhibited stochastic Turing patterns: a 'lawn' of synthesized bacteria in a petri dish fluoresced an irregular pattern of red polka dots on a field of green. […]

  • Evaluation method for the impact of wind power fluctuation on power system quality
    on June 20, 2018 at 1:47 pm

    Abrupt changes of wind power generation output are a source of severe damage to power systems. Researchers have developed a stochastic modeling method that enables to evaluate the impact of such phenomena. […]

  • When photons spice up the energy levels of quantum particles
    on June 19, 2018 at 4:24 pm

    For the first time, a team of mathematical physicists, call upon supersymmetry to explain the behavior of particles that have received a photon and are subjected to particular potential energies known as shape-invariant potentials. […]

  • Approach can help English learners improve at math word problems
    on June 19, 2018 at 4:24 pm

    Education professors have shown that a comprehension-based strategy can help English learners improve their math word-problem solving abilities. The approach boosts reading comprehension and problem solving as well. […]

  • Targeting the engine room of the cancer cell
    on June 18, 2018 at 6:18 pm

    Researchers have developed a highly innovative computational framework that can support personalized cancer treatment by matching individual tumors with the drugs or drug combinations that are most likely to kill them. […]

  • Better be safe than sorry: Economic optimization risks tipping of Earth system elements
    on June 15, 2018 at 7:44 pm

    Optimizing economic welfare without constraints might put human well-being at risk, a new climate study argues. While being successful in bringing down costs of greenhouse gas reductions for instance, the concept of profit maximization alone does not suffice to avoid the tipping of critical elements in the Earth system which could lead to dramatic changes of our lifelihood. The scientists use mathematical experiments to compare economic optimization to the governance concepts of sustainability and the more recent approach of a safe operating space for humanity. All of these turn out to have their benefits and deficits, yet the profit-maximizing approach shows the greatest likelihood of producing outcomes that harm people or the environment. […]

  • Network theory links behavioral information flow with contained epidemic outbreaks
    on June 15, 2018 at 1:26 am

    Over the last two decades, large-scale outbreaks of infectious diseases have resulted in high levels of morbidity, mortality, and overall economic burden for affected regions. As complex networks become increasingly popular tools of study, researchers are applying network theory to the field of epidemiology. Researchers now employ a concrete interplay model in quenched multiplex networks to study the connection between adaptive human behavior and epidemic spread. […]

  • Block play could improve your child's math skills, executive functioning
    on June 12, 2018 at 10:50 pm

    Semi-structured block play among preschool-age children has the potential to improve two skills - mathematics and executive functioning - critical to kindergarten readiness, according a new study. […]

  • New computational tool predicts progression of metabolic syndrome in mice
    on June 7, 2018 at 6:10 pm

    Scientists have developed a new computational model that accurately predicts the gradual, long-term progression of metabolic syndrome in mice. […]

  • Using mathematical approaches to optimally manage public debt
    on June 7, 2018 at 3:28 pm

    Large government debt negatively impacts long-term economic growth and the debt-to-gross domestic product (GDP) ratio is an important indicator of a country's financial leverage. Financial mathematicians propose a mathematical model that helps optimize and control the debt-to-GDP ratio. […]

  • Simpler model gets to the point with proteins
    on June 6, 2018 at 12:23 pm

    Researchers introduce a new computational framework to predict the details of protein folding and other dynamic molecular processes. […]

  • Beyond superstition to general causality: AI nutcracker for real-world problems
    on June 5, 2018 at 3:21 pm

    Real-world problems in economics and public health can be notoriously hard nuts to find causes for. Often, multiple causes are suspected but large datasets with time-sequenced data are not available. Previous models could not reliably analyze these challenges. Now researchers have tested the first Artificial Intelligence model to identify and rank many causes in real-world problems without time-sequenced data, using a multi-nodal causal structure and Directed Acyclic Graphs. […]

  • The right squeeze for quantum computing
    on May 31, 2018 at 2:28 pm

    A new theoretical model involving squeezing light to just the right amount to accurately transmit information using subatomic particles is bringing us closer to a new era of computing. […]

  • Supercomputers provide new window into the life and death of a neutron
    on May 30, 2018 at 5:30 pm

    Scientists have enlisted powerful supercomputers to calculate a quantity known as the 'nucleon axial coupling' -- which is central to our understanding of a neutron's lifetime -- with an unprecedented precision. Their method offers a clear path to further improvements that may help to resolve the experimental discrepancy. […]

  • Scientists use a photonic quantum simulator to make virtual movies of molecules vibrating
    on May 30, 2018 at 5:30 pm

    Scientists have shown how an optical chip can simulate the motion of atoms within molecules at the quantum level, which could lead to better ways of creating chemicals for use as pharmaceuticals. […]

  • Mathematical model explains why metastasis can occur even when cancer is caught early
    on May 29, 2018 at 7:30 pm

    Leaning on evolutionary and ecological theory, researchers modeled how a tumor's various cancer cell lineages compete for dominance. Their findings help explain a surprising observation: Most metastatic tumors derive from cancer cell lineages that emerge at early stages of the disease. […]

  • What do animals want?
    on May 29, 2018 at 5:21 pm

    Researchers apply machine learning to understand how potential food rewards guide the movements of nematodes, finding that the subjects combine multiple sensations into strategic behaviors that uses the minimal amount of energy. […]

  • How to code a functional molecular machine?
    on May 29, 2018 at 5:20 pm

    An international team has developed a model that simulates protein evolution. Starting from stiff, unfunctional proteins, the computer model shows how evolving protein components can work together to give rise to dynamic and efficient molecular machines. […]

  • China floods to hit US economy: Climate effects through trade chains
    on May 28, 2018 at 7:19 pm

    Fluvial floods will increase due to human-made climate change, in particular in China. This might raise direct and indirect economic losses along the global supply and trade chains. The US is susceptible to indirect climate-related economic losses due to its negative trade balance with China. Trump's tariffs might further reduce the resilience of the US economy. […]

  • New theory finds 'traffic jams' in jet stream cause abnormal weather patterns
    on May 24, 2018 at 6:16 pm

    A study offers an explanation for a mysterious and sometimes deadly weather pattern in which the jet stream, the global air currents that circle the Earth, stalls out over a region. Much like highways, the jet stream has a capacity, researchers said, and when it's exceeded, blockages form that are remarkably similar to traffic jams -- and climate forecasters can use the same math to model them both. […]

  • Dengue: Investigating antibodies to identify at-risk individuals
    on May 23, 2018 at 5:33 pm

    Using an original mathematical and statistical analysis method, scientists analyzed a Thai cohort in order to help identify individuals at risk of infection. By modeling changes in antibody levels after successive infections with the different dengue serotypes, the scientists were able to establish the profile of these individuals. […]

  • From a model of fluids to the birth of a new field in computational physics
    on May 22, 2018 at 4:32 pm

    It may sound like the stuff of fairy tales, but in the 1950s two numerical models initially developed as a pet project by physicists led to the birth of an entirely new field of physics: computational statistical mechanics. […]

  • Physicists with green fingers estimate tree spanning rate in random networks
    on May 22, 2018 at 4:32 pm

    Scientists calculate the total number of spanning trees in randomly expanding networks. This method can be applied to modelling scale-free network models, which, as it turns out, are characterized by small-world properties. […]

  • Driverless cars change lanes more like humans do
    on May 22, 2018 at 3:48 pm

    Researchers will present a new lane-change algorithm that splits the difference. It allows for more aggressive lane changes than the simple models do but relies only on immediate information about other vehicles' directions and velocities to make decisions. […]