Article
Physics, Mathematical
Kevin Yang
Summary: We prove that the height function of non-simple exclusion processes with arbitrary jump-length converges to the solution of the Kardar-Parisi-Zhang SPDE under suitable scaling and renormalization. This extends the previous works by Dembo and Tsai (2016) for arbitrary jump-length and by Goncalves and Jara (2017) for the non-stationary regime. Our findings provide answers to important questions in the field of KPZ and contribute to the understanding of weak KPZ universality in non-integrable and non-stationary particle systems.
COMMUNICATIONS IN MATHEMATICAL PHYSICS
(2023)
Article
Physics, Fluids & Plasmas
D. Machado, R. Mulet
Summary: This study starts from the theory of random point processes to derive n-point coupled master equations describing the continuous dynamics of discrete variables in random graphs. The derived equations constitute a hierarchical set of approximations that generalize and improve the cavity master equation (CME). Tested in three models defined over diluted graphs, the equations perform similarly to the best-known approaches in the first two models and outperform the well-known pair quenched mean-field approximation in the third model.
Article
Physics, Fluids & Plasmas
Theophile Bonnet, Davide Mancusi, Andrea Zoia
Summary: Understanding the statistical properties of a collection of individuals subject to random displacements and birth-and-death events is crucial in physics and life sciences. This study extends previous investigations by considering models with prompt and delayed birth-and-death events and explores the possibility of population extinction due to non-Poissonian fluctuations.
Review
Mathematics
Guo-Qiang Cai, Ronghua Huan, Weiqiu Zhu
Summary: This paper systematically presents three methods to generate two correlated stationary Gaussian processes, including the method of linear filters, the method of series expansion with random amplitudes, and the method of series expansion with random phases. These methods aim to match the power spectral density for each process with different levels of correlation information. The advantages and disadvantages of each method are discussed.
Article
Statistics & Probability
Giuseppe Di Benedetto, Francois Caron, Yee Whye Teh
Summary: This paper introduces a flexible class of nonexchangeable random partition models that can generate partitions with cluster sizes growing sublinearly with the sample size, controlled by one parameter. Experiments on real data sets highlight the usefulness of the approach compared to a two-parameter Chinese restaurant process.
ANNALS OF STATISTICS
(2021)
Article
Physics, Fluids & Plasmas
Fei Liu
Summary: By using the age-structure formalism, this paper establishes connections between semi-Markov processes and the dynamics of open quantum systems that satisfy the Markov quantum master equations. It also proposes a generalized Feynman-Kac formula for the semi-Markov processes. The semi-Markov processes inherit all statistical properties possessed by the piecewise deterministic processes of wave functions and show unique advantages in quantum counting statistics, allowing for application to more general counting quantities.
Article
Physics, Multidisciplinary
Ignacio Gomez T. Garay, Damian H. Zanette
Summary: In this study, the effects of stochastic resetting in replicator dynamics were investigated. The results showed that the distribution of resources among competing agents exhibited highly nonuniform profiles, with clustering and fluctuations that had anomalous dependence on the population size. This non-standard statistical behavior posed a challenge to analytical treatment based on mean-field assumptions. Alternative simplified analytical approaches were proposed, providing a stylized description of entropy evolution for the clustered distribution of resources and explaining the unusually slow decrease of fluctuations.
Article
Biochemistry & Molecular Biology
Cecilia Pankau, Jeremy Nadolski, Hannah Tanner, Carlie Cryer, John Di Girolamo, Christine Haddad, Matthew Lanning, Mason Miller, Devan Neely, Reece Wilson, BreAnna Whittinghill, Robin L. Cooper
Summary: Manganese is a common and essential element for life in plants and animals, but overexposure can be toxic. Hypermanganesemia can lead to neurological issues and affect various aspects of health. Studies have shown that manganese can impact development, behavior, survival, cardiac function, and neural transmission in fruit flies and crustaceans.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
(2022)
Article
Physics, Mathematical
Partha S. Dey, Qiang Wu
Summary: This study focuses on the fluctuation and limiting distribution of free energy in mean-field Ising spin glass models under weak external fields. It is proved that there are three sub-regimes at high temperature based on the strength of external field. The study provides explicit expressions for the mean and variance in all three regimes and proves Gaussian central limit theorems.
COMMUNICATIONS IN MATHEMATICAL PHYSICS
(2023)
Article
Mathematics, Interdisciplinary Applications
J. Menezes, B. Moura
Summary: Apparent competition is an indirect interaction between species that share natural resources without aggression but negatively affect each other if there is a common enemy. In a model where two prey species share a common predator, the predator plays a central role in pattern formation and coarsening dynamics. The effects of predator mortality on species persistence show a crossover between curvature-driven scaling and coexistence scenarios. Low predator mortality leads to spatial domains mainly inhabited by one prey species, while high predator mortality reduces the effects of apparent competition and allows for a larger fraction of lattice to be shared by both prey species.
CHAOS SOLITONS & FRACTALS
(2022)
Article
Business, Finance
Fernando Bolivar, Miguel A. Duran, Ana Lozano-Vivas
Summary: This paper proposes a research strategy based on machine learning techniques to examine the relationship between profitability and business models across bank sizes. The results suggest that banks with similar levels of performance but different sizes have shared strategic features. Furthermore, high capital ratios seem to be compatible with high profitability if banks adopt a standard retail business model relative to their size peers.
FINANCE RESEARCH LETTERS
(2023)
Article
Chemistry, Physical
G. George, L. Klochko, A. N. Semenov, J. Baschnagel, J. P. Wittmer
Summary: Simple models for strictly non-ergodic stochastic processes x(t) are investigated, focusing on the expectation value and standard deviation of the empirical variance of finite time series x. The volume dependence of the non-ergodicity parameter Delta(ne) is explored for different spatial correlations, showing that Delta(ne) increases as sampling time increases.
EUROPEAN PHYSICAL JOURNAL E
(2021)
Review
Virology
Ivan D'Orso, Christian V. Forst
Summary: This article reviews the use of viral dynamics models for studying HIV-1 latent infection. These models can explain the decline in viral load during antiretroviral therapy, the formation and clearance of latent reservoirs, the dynamics of viral blips, and more. Additionally, mathematical models can predict the efficacy of potential HIV-1 cure strategies and guide the design of new treatment trials.
Article
Soil Science
Ran Xue, Kankan Zhao, Xiuling Yu, Erinne Stirling, Shan Liu, Shudi Ye, Bin Ma, Jianming Xu
Summary: The study revealed the composition differences of microbial communities under different sampling schemes, demonstrating the spatial distribution and ecological process changes of microorganisms at different sampling scales. Increasing sample size leads the bacterial community assembly process to change from variable selection to homogenous selection.
SOIL BIOLOGY & BIOCHEMISTRY
(2021)
Article
Physics, Fluids & Plasmas
S. Saxena, J. M. Kosterlitz
Summary: The study explores the critical role of noise in the wave-number selection process in pattern-forming systems using the one-dimensional stabilized Kuramoto-Sivashinsky equation with additive noise. It reveals that noise has drastic effects on the growth of different modes, where it opposes the growth of Eckhaus modes close to the critical wave number and boosts the growth of those with smaller wave numbers. The hypothesis that noise excites long-wavelength modes is confirmed through extensive numerical simulations.
Article
Medicine, General & Internal
Ganna Rozhnova, Mirjam E. Kretzschmar, Fiona van der Klis, Debbie van Baarle, Marjolein J. Korndewal, Ann C. Vossen, Michiel van Boven
Article
Medicine, General & Internal
Alexandra Teslya, Thi Mui Pham, Noortje G. Godijk, Mirjam E. Kretzschmar, Martin C. J. Bootsma, Ganna Rozhnova
Correction
Microbiology
Igor M. Rouzine, Ganna Rozhnova
Article
Multidisciplinary Sciences
Ganna Rozhnova, Christiaan H. van Dorp, Patricia Bruijning-Verhagen, Martin C. J. Bootsma, Janneke H. H. M. van de Wijgert, Marc J. M. Bonten, Mirjam E. Kretzschmar
Summary: The authors used an age-structured transmission model to assess the effects of school-based measures during the COVID-19 pandemic in the Netherlands, finding that reducing school-based contacts depends on the remaining opportunities to reduce non-school-based contacts while R-e is still close to 1.
NATURE COMMUNICATIONS
(2021)
Article
Physics, Multidisciplinary
Mirjam E. Kretzschmar, Ganna Rozhnova, Michiel van Boven
Summary: Social distancing and isolation measures are key in controlling the spread of COVID-19, but the presence of asymptomatic infections can impact the effectiveness of these measures. Research indicates that containment is less likely to be achieved solely through social distancing, while contact tracing and isolation are more effective in reducing transmission rates.
FRONTIERS IN PHYSICS
(2021)
Article
Multidisciplinary Sciences
Joao Viana, Christiaan H. van Dorp, Ana Nunes, Manuel C. Gomes, Michiel van Boven, Mirjam E. Kretzschmar, Marc Veldhoen, Ganna Rozhnova
Summary: While there is a consensus that mass vaccination against SARS-CoV-2 will ultimately end the pandemic, it remains unclear when and which control measures can be relaxed during the rollout of vaccination programs. Research suggests that restarting socioeconomic activities urgently could trigger new pandemic waves, requiring substantial control efforts throughout 2021.
NATURE COMMUNICATIONS
(2021)
Article
Multidisciplinary Sciences
Maartje G. J. Basten, Daphne A. van Wees, Amy Matser, Anders Boyd, Ganna Rozhnova, Chantal den Daas, Mirjam E. E. Kretzschmar, Janneke C. M. Heijne
Summary: Individual sexual behavior among men who have sex with men (MSM) is variable over time, with a significant proportion increasing HIV risk. Factors associated with behavior change may help identify MSM likely to increase risk in the future and target interventions to reduce HIV transmission.
Article
Infectious Diseases
Daphne Amanda van Wees, Sophie Diexer, Ganna Rozhnova, Amy Matser, Chantal den Daas, Janneke Heijne, Mirjam Kretzschmar
Summary: The study found that after the introduction of PrEP, MSM engaged in more high-risk sexual behavior, leading to an increase in gonorrhea diagnoses, while chlamydia and syphilis became more concentrated in a high-risk subgroup. Tracking the impact of increasing PrEP coverage on sexual behavior and STI incidence is crucial for improved prevention efforts for high-risk MSM.
SEXUALLY TRANSMITTED INFECTIONS
(2022)
Article
Infectious Diseases
Mirjam E. Kretzschmar, Ben Ashby, Elizabeth Fearon, Christopher E. Overton, Jasmina Panovska-Griffiths, Lorenzo Pellis, Matthew Quaife, Ganna Rozhnova, Francesca Scarabel, Helena B. Stage, Ben Swallow, Robin N. Thompson, Michael J. Tildesley, Daniel Villela
Summary: This paper discusses the framework provided by mathematical modelling and statistical inference for controlling epidemics during the COVID-19 pandemic. It highlights the challenges for future pandemic control and emphasizes the importance of data availability, correct parameterization, and modeling various aspects of interventions, including health economics and politics.
Article
Immunology
Kim A. G. J. Romijnders, Laura de Groot, Sigrid C. J. M. Vervoort, Maartje G. J. Basten, Berend J. van Welzen, Mirjam E. Kretzschmar, Peter Reiss, Udi Davidovich, Ganna Rozhnova
Summary: This qualitative study explored the perceived impact of two HIV cure scenarios on the quality of life of PLHIV and key populations in the Netherlands. The findings showed that both PLHIV and participants from vulnerable key populations hoped that a cure would result in normalization of their lives, reduced stigma, and increased independence and freedom in sexual behavior. However, they believed that only complete HIV elimination could achieve these desired impacts.
JOURNAL OF VIRUS ERADICATION
(2022)
Article
Medicine, Research & Experimental
Alexandra Teslya, Ganna Rozhnova, Thi Mui Pham, Daphne A. van Wees, Hendrik Nunner, Noortje G. Godijk, Martin Bootsma, Mirjam E. Kretzschmar
Summary: The study used a SARS-CoV-2 transmission model to investigate the relationship between compliance, infection rates, and vaccination coverage. The results suggest that behavioral interventions can improve the outcomes of vaccination programs until coverage is sufficiently high.
COMMUNICATIONS MEDICINE
(2022)
Article
Public, Environmental & Occupational Health
Maartje Basten, Chantal den Daas, Janneke C. M. Heijne, Anders Boyd, Udi Davidovich, Ganna Rozhnova, Mirjam Kretzschmar, Amy Matser
Summary: The study found that HIV risk perception among men who have sex with men has fluctuated over the past 20 years. Factors associated with risk perception include condomless sexual behavior and number of partners, while PrEP use and condomless sex with a steady partner are linked to lower risk perception. The introduction of the Undetectable equals Untransmittable statement and PrEP coincided with a decrease in perceived risk.
Proceedings Paper
Biochemistry & Molecular Biology
Ana Nunes, Patricia F. N. Faisca
TOPOLOGY AND GEOMETRY OF BIOPOLYMERS
(2020)
Article
Astronomy & Astrophysics
Elsa M. Teixeira, Ana Nunes, Nelson J. Nunes