Articles tagged with Mathematical Modeling
A new mathematical model suggests that easing lockdown must be accompanied by wider and more effective use of control measures like facemasks to suppress COVID-19. The model shows that non-spatial control measures can limit virus particle spread between people.
A new study found that face mask distribution and mandatory use corresponded with a significant reduction in viral transmission in Italy. The use of face coverings may have reduced official COVID-19 cases by up to 30,000 during the first half of 2020.
Scientists at the University of Exeter made a breakthrough in understanding brain activity during seizures by studying synchronization patterns. The study found that excessive synchronization can lead to epileptic seizures and Parkinson's disease, impairing brain function.
A new model developed by a Washington University mathematician helps estimate the relative risk of different in-person activities, such as traveling or attending events. By breaking down individual factors and adding their contributions to relative risk, the model allows for informed decision-making about participation.
Researchers developed a mathematical model to simulate SARS-CoV-2 infection, finding innate immunity controls viral load more effectively than adaptive immunity. The study suggests starting antiviral or interferon therapy as soon as symptoms appear.
African termites' underground nests are built using a self-organized architecture that reflects individual behavior and environmental cues. The study's mathematical model simulates nest construction, revealing consistent vertical and horizontal spacing patterns.
A new study published in Nature Communications found that deep learning models surpass standard machine learning approaches in analyzing brain imaging data, generating more accurate representations of the human brain. This is particularly beneficial for complex problems requiring large datasets and advanced analysis.
A traditional disease spread model may not accurately predict COVID-19's continuing spread, especially during lockdowns. Researchers suggest a dynamic approach using the geometric mean to better forecast short-term numbers.
Researchers from Universidad Carlos III de Madrid and UNED used big data and physics research to analyze Beethoven's metronomic marks. The study found that conductors tend to play slower than indicated, with a systematic deviation, which could be explained by the composer reading the metronome incorrectly.
Researchers at St Petersburg University have developed a new Case-Based Rate Reasoning (CBRR) model to predict epidemic dynamics. The model uses data from countries where the disease was recorded earlier to forecast its spread in Russia, and is being updated weekly for cities like St Petersburg and Moscow.
New theories have enabled researchers to model unusual dynamics where particle motions are no longer influenced by previous events. The 'memory term' principle allows studying this effect in a broader range of situations, particularly for advanced materials that respond to their environment.
A RUDN University physicist created a software solution to identify the instability regions of black holes, ensuring their mathematical models are physically viable. The approach uses Einstein's equation with added corrections and identifies critical coupling constants that affect model stability.
A new election forecasting approach uses a mathematical modeling technique to describe how voters in different states may influence each other during an election year. The model forecasts a victory for Biden 89.03% of the time, with a margin of victory lower than the percentage of undecided voters.
A new study by Ashish Goyal and colleagues proposes that treating with potent antiviral therapy before peak viral load can effectively suppress viral AUC, reducing the duration of viral shedding. The model also suggests that timing is crucial in determining the effectiveness of different therapies against COVID-19.
Researchers developed a new mathematical framework that leverages uncertainty and expert knowledge to create more accurate and efficient computer models. This method provides guarantees on model performance and can lead to breakthroughs in renewable energy, battery technology, and other fields.
A RUDN University mathematician has enhanced the standard predator-prey model to include nonlocal interactions, which affect system dynamics and lead to different patterns of predation and prey growth. This improved model will help ecologists better understand natural systems and predict their development.
A mathematical model reveals human spaceflight reduces exercise tolerance and ages astronauts' hearts, with features similar to accelerated aging. Understanding 0G configuration is crucial for ensuring astronaut health in future missions to the Moon and Mars.
Researchers developed a mathematical model to estimate key physiological parameters like maximal aerobic speed and endurance in athletes. The non-invasive data gathering method offers new possibilities for treatments and monitoring.
Researchers developed a comprehensive mathematical framework to optimize sensor placement and selection. The model revealed that not all sensors were needed to accurately estimate key physical states, such as velocity and angle of attack. This approach balances cost and precision, making it a critical solution for complex systems.
A new dynamic mathematical model developed by researchers from the Universitat Autonoma de Barcelona has shown that it can accurately predict the probability of mortality and survival of small species under heat stress. The study's findings suggest that the current standard model subestimates species' vulnerability to climate warming a...
New research shows that US political parties have become increasingly polarized due to their quest for voters. The study challenges a 1950s model by economist Anthony Downs, finding that voters remain moderate but parties move towards extremes to minimize constituency overlap.
Texas A&M researchers have created a contagious model to accurately forecast flood water spread and recession process on urban road networks. The findings provide valuable insights into the universality of network spread processes across various systems, which can help better manage cities.
A mathematical modeling study examines the potential of contract tracing to combat SARS-CoV-2 transmission under varying assumptions. The researchers found that effective contact tracing can significantly reduce the spread of COVID-19 in scenarios with reduced physical distancing.
The study proposes a new perspective on urban development, revealing the complex interplay of individual and collective actions that drive meaningful change. It highlights the slow pace of change in cities and the negative impact of uncertainty and policies promoting aggregate growth on innovation and inequality.
Academics from City University London, led by Professors Bev Littlewood and Martin Newby, are improving the quality of epidemic models using Software Engineering Boards (SEBs). The project aims to increase confidence in decision-making based on mathematical models, ensuring policy-making security and improved access to models.
Tyrus Berry is developing a semiparametric modeling framework to leverage strengths of parametric and nonparametric methods. The project aims to provide flexible models with quantifiable uncertainty for optimal predictions in limited noisy observations.
Researchers at Kyushu University developed a mathematical model to evaluate two hepatitis C virus strategies, finding that one strain prefers to multiply while another prefers to spread. The study provides new insights into viral behavior and could help develop effective therapeutic methods.
Historical modelling analysis suggests that community-led interventions, including public hygiene initiatives and social distancing measures, played a crucial role in controlling the Typhus epidemic in the Warsaw Ghetto. The study highlights the importance of grassroots efforts in combating infectious diseases.
Scientists from CNRS and University of Nantes have developed a mathematical model to predict the risk of epidemic emergence based on seasonal factors. The 'winter is coming' effect suggests that pathogens introduced before unfavorable winter periods are less likely to cause large epidemics.
A Columbia data scientist aims to develop tools to manage demand with flexible options for consumers, converting their flexibility into operational efficiency for companies. He plans to create mathematical frameworks to optimize pricing and scheduling, benefiting both consumers and firms.
The study found that applicant practices were diverse but lacked representation from small, independent, rural, or inexperienced practices. Participating practices served healthier and more advantaged beneficiaries, highlighting the need for further engagement.
A new model of opinion formation shows how people's emotional connections with others influence their political views, leading to increased polarization. The Weighted Balance Theory identifies hyperpolarization as a vicious circle where intense emotions and opinions replace moderate positions.
Researchers from Russia and the Czech Republic modelled natural rock arcades, finding that they appear in areas with discontinuities due to erosion. The study used a mathematical model that describes the formation of arches and pillars through weathering and erosion processes.
Researchers developed a mathematical model to describe human behavior in various scenarios, helping to understand decision-making. The study found that people tend to use a linear threshold model, increasing the price they're willing to pay over time.
Researchers applied a new Gaussian mathematical model to high-precision laser 40Ar/39Ar dating data from the Tengchong area, resolving 3 volcanic eruptive stages: Pliocene (3.78 Ma), early Middle Pleistocene (0.63 Ma) and late Middle Pleistocene (0.139 Ma). The method reduces uncertainty and defines stages with high precision.
A new AI-driven system called ModGraProDep has been developed to predict cancer survival and risk. This innovative tool uses probabilistic modeling and machine learning to provide personalized predictions for patients, enabling more effective treatment planning and improved patient outcomes.
A new model called Swiftaid has been developed to automate the process of claiming Gift Aid on donations, allowing charities to claim up to £2.50 for every £10 donated. This system uses formal methods to improve design and security, streamlining the process and unlocking millions in extra funding.
Researchers are developing numerical methods and mathematical models to support epidemiologists in understanding COVID-19 spread. They aim to answer key questions on the effectiveness of social distancing and quarantines, with funding from NSF.
A team of investigators at the University of Kansas is developing mathematical models to project how different interventions can stem the spread of COVID-19. The models will account for human behavior, such as public fear and adherence to disease-control measures.
A new USC study proposes that a short regimen of immunosuppressant drugs applied early in the disease process may improve patient outcomes by delaying the adaptive immune response. This approach aims to prevent the interaction between the innate and adaptive immune responses, which can lead to a cytokine storm and tissue damage.
Researchers cast doubt on the idea that the Justinianic Plague killed half of the Roman Empire's population. Using new mathematical models, they found it unlikely that any transmission route would have produced the described mortality rate and duration. The study highlights the importance of considering regional ecological and social p...
A Rutgers engineer has developed a mathematical model that accurately estimates the COVID-19 death toll in the United States, predicting approximately 68,120 cumulative deaths by late June 2020. The model shows high confidence in its predictions, with reported death totals closely matching its estimates.
Scientists developed a novel method to improve mathematical modeling of nanoscale materials, enabling faster calculations and more accurate predictions. The approach involves creating imaginary rigid grains, reducing bond numbers and computation time.
A recent study used a 10-year galaxy survey to test one of cosmology's pillars and provided a new approach to understanding the universe's growth. The research team demonstrated that denser clumps grew faster, while less-dense clumps grew more slowly.
Researchers have identified two scenarios in which minority languages can survive: linguistic diversity and mixed speaker populations. By applying mathematical modeling, the authors propose a new framework for understanding language coexistence, shedding light on the complexities of minority language preservation.
A mathematical model produced more realistic estimates of COVID-19 cases by incorporating population density, age distribution, and transmission probability. The model suggested significant underreporting in various countries, including Italy, South Korea, and Spain, highlighting the need for improved testing and data reporting.
A new model developed by Arizona State University researcher Adam Lampert suggests that countries should work together to control the spread of harmful species, including diseases like COVID-19. The model indicates that in some cases, a clear division of labor may be necessary, while in others collaboration is more effective.
A new mathematical model, developed by researchers at Carnegie Mellon University and Princeton University, uses information theory to improve epidemiological predictions. The model takes into account the evolutionary changes of both disease and information, allowing for more accurate predictions of epidemic spread.
Researchers Amandine Aftalion and Emmanuel Trélat found that shorter straights and larger radii can improve running performance. Their mathematical model predicts that these track designs could potentially break long-standing records, with improvements of up to 4 hundredth of a second.
Researchers at Uppsala University and the University of Leeds present a new mathematical model explaining patterns of diversity in the fossil record. The model shows that ancestral forms are typically few in number and quickly go extinct, while modern groups diversify rapidly.
A study estimates that Pakistan needs a significant investment of $3.9 billion to achieve the World Health Organization's target for eliminating Hepatitis C virus (HCV) by 2030. This would involve screening or re-screening 36 million people annually and treating 660,000 each year, with regular follow-ups to identify new infections.
Researchers at the University of Washington developed a mathematical model that describes how rotating detonation engines work. The model allows engineers to determine whether an engine is stable or unstable and assess its performance. This breakthrough could lead to more efficient and lightweight spacecraft.
A new study finds that educating growers about the effectiveness of control strategies is key to combating plant pathogens. Researchers coupled a mathematical model with human behavior data from a survey of growers, highlighting the importance of maintaining frequent engagement and trust.
A team from Universitat Rovira i Virgili developed an algorithm that makes accurate predictions and generates interpretable models. This allows for a better understanding of the data, reducing biases in original data and providing valuable information for scientists.
Hives affect 1 in 5 people, and researchers used a mathematical model to recreate the patterns of hives. The study suggests that certain mechanisms may inhibit histamine release, adding complexity to the disease. The findings will help create a more detailed picture of how the skin disease develops.
Scientists develop a mathematical model that describes the chemical reactions responsible for amyloid fibril formation, revealing catalytic sites at interfaces and implications for laboratory data interpretation. The model has a simpler mathematical form than previous models, making it more accessible for future studies.
Researchers from University of York develop new model to calculate impact of changes to Luftwaffe tactics on the battle's outcome. The study suggests that altering the timing and targeting of airfields could have shifted the battle significantly in Germany's favor.
Researchers recommend simplifying air quality testing methods to improve accuracy in simulating atmospheric chemical reactions and reducing pollution. A combination of bottom-up and top-down techniques can help achieve more accurate results.
Researchers have created a mathematical model that explains how the interlocking edges of oyster shells develop physically, revealing a complex interplay between geometry and mechanical forces. The study suggests that a toothed or wavy edge occurs when the mantle grows faster than the shell edge, causing it to buckle.
Researchers have developed a theoretical mechanical model to study how spider orb-webs detect prey through vibrations. The model reveals that web dynamics are crucial in localizing prey, and it has potential applications for bioinspired materials.