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Widely used closed product-form networks have emerged recently as a primary model of stochastic growth of sub-cellular structures, e.g., cellular filaments. In the baseline model, homogeneous monomers attach and detach stochastically to…

We propose a methodology that combines generative latent diffusion models with physics-informed machine learning to generate solutions of parametric partial differential equations (PDEs) conditioned on partial observations, which includes,…

机器学习 · 计算机科学 2026-02-11 Davide Gallon , Philippe von Wurstemberger , Patrick Cheridito , Arnulf Jentzen

We develop methods for investigating protein drift-diffusion dynamics in heterogeneous cell membranes and the roles played by geometry, diffusion, chemical kinetics, and phase separation. Our hybrid stochastic numerical methods combine…

生物物理 · 物理学 2023-02-28 Patrick D. Tran , Thomas A. Blanpied , Paul J. Atzberger

We study analytically the dynamics and the micro-structural changes of a host medium caused by a driven tracer particle moving in a confined, quiescent molecular crowding environment. Imitating typical settings of active micro-rheology…

统计力学 · 物理学 2016-03-17 O. Bénichou , P. Illien , G. Oshanin , A. Sarracino , R. Voituriez

To spontaneously break their intrinsic symmetry and self-propel at the micron scale, isotropic active colloidal particles and droplets exploit the non-linear convective transport of chemical solutes emitted/consumed at their surface by the…

软凝聚态物质 · 物理学 2023-06-22 Francesco Picella , Sebastien Michelin

This paper presents a framework for aerial manipulation of an extensible cable that combines a high-fidelity model based on partial differential equations (PDEs) with a reduced-order representation suitable for real-time control. The PDEs…

机器人学 · 计算机科学 2026-02-20 Antonio Rapuano , Yaolei Shen , Federico Califano , Chiara Gabellieri , Antonio Franchi

Control in fluid environments is an important research area with numerous applications across various domains, including underwater robotics, aerospace engineering, and biomedical systems. However, in practice, control methods often face…

机器学习 · 计算机科学 2025-08-13 Haodong Feng , Peiyan Hu , Yue Wang , Dixia Fan

In this study, we describe different modeling approaches for ovarian follicle population dynamics, based on either ordinary (ODE), partial (PDE) or stochastic (SDE) differential equations, and accounting for interactions between follicles.…

组织与器官 · 定量生物学 2019-03-21 Celine Bonnet , Keltoum Chahour , Frédérique Clément , Marie Postel , Romain Yvinec

The aim of the present paper is to efficiently describe the membrane potential dynamics of neural populations formed by species having a high density difference in specific brain areas. We propose a hybrid model whose main ingredients are a…

神经元与认知 · 定量生物学 2015-10-06 Anna Cattani , Sergio Solinas , Claudio Canuto

We calculate the gauge invariant cumulants (and moments) associated with the Zak phase in the Rice-Mele model. We reconstruct the underlying probability distribution by maximizing the information entropy and applying the moments as…

介观与纳米尺度物理 · 物理学 2017-06-14 M. Yahyavi , B. Hetényi

Cell polarity refers to the spatial asymmetry of molecules on the cell membrane. Altschuler, Angenent, Wang and Wu have proposed a stochastic model for studying the emergence of polarity in the presence of feedback between molecules. We…

概率论 · 数学 2012-06-19 Ankit Gupta

We describe the evolution of a paraxial electromagnetic wave characterizing by a non-uniform polarization distribution with singularities and propagating in a weakly anisotropic medium. Our approach is based on the Stokes vector evolution…

光学 · 物理学 2009-11-13 K. Yu. Bliokh , A. Niv , V. Kleiner , E. Hasman

The Particle-In-Cell (PIC) method is widely used in relativistic particle beam and laser plasma modeling. However, the PIC method exhibits numerical instabilities that can render unphysical simulation results or even destroy the simulation.…

等离子体物理 · 物理学 2016-05-04 M. D. Meyers , C. -K. Huang , Y. Zeng , S. A. Yi , B. J. Albright

Recent experiments have exploited elastic instabilities in membranes to create complex patterns. However, the rational design of such structures poses many challenges, as they are products of nonlinear elastic behavior. We pose a simple…

软凝聚态物质 · 物理学 2009-08-13 Elisabetta A. Matsumoto , Randall D. Kamien

This article explores the properties of an SEIR$^{\text{T}}$R$^{\text{P}}$D endemic model expressed through delay-differential equations with distributed delays for latency and temporary immunity. Our research delves into the variability of…

数值分析 · 数学 2025-11-19 Tin Nwe Aye , Linus Carlsson

Lagrangian particle tracking is essential for characterizing turbulent flows, but inferring particle acceleration from inherently noisy position data remains a significant challenge. Fluid particles in turbulence experience extreme,…

数据分析、统计与概率 · 物理学 2026-02-27 Griffin M Kearney , Kasey M Laurent , Makan Fardad

We consider a partial differential equation model for the growth of heterogeneous cell populations subdivided into multiple distinct discrete phenotypes. In this model, cells preferentially move towards regions where they feel less…

偏微分方程分析 · 数学 2025-04-04 José A. Carrillo , Tommaso Lorenzi , Fiona R. Macfarlane

Density profiles are the most common measure of inhomogeneous structure in confined fluids, but their connection to transport coefficients is poorly understood. We explore via simulation how tuning particle-wall interactions to flatten or…

统计力学 · 物理学 2008-03-14 Gaurav Goel , William P. Krekelberg , Jeffrey R. Errington , Thomas M. Truskett

Clusters of differentiation (CD) are cell surface biomarkers that denote key biological differences between cell types and disease state. CD-targeting therapeutic monoclonal antibodies (mAB) afford rich trans-disease repositioning…

分子网络 · 定量生物学 2018-03-14 Trang T. Le , Nigel O. Blackwood , Jaclyn N. Taroni , Weixuan Fu , Matthew K. Breitenstein

Recent advances in high-resolution experimental methods have highlighted the significance of cell signal pathway crosstalk and localised signalling activity in the development and disease of numerous biological systems. The investigation of…

动力系统 · 数学 2022-09-19 Joshua W. Moore , Trevor C. Dale , Thomas E. Woolley