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We propose a two-scale model to resolve essential features of developmental tissue deformations. The model couples individual cellular behavior to the mechanics at tissue scale. This is realized by a multiphase-field model addressing the…

Soft Condensed Matter · Physics 2025-06-25 Lea Happel , Axel Voigt

Estimating physical parameters or material properties from experimental observations is a common objective in many areas of physics and material science. In many experiments, especially in shock physics, radiography is the primary means of…

Computational Physics · Physics 2025-07-01 Evan Bell , Daniel A. Serino , Ben S. Southworth , Trevor Wilcox , Marc L. Klasky

This paper proposes a high-precision semantic segmentation method based on an improved TransUNet architecture to address the challenges of complex lesion structures, blurred boundaries, and significant scale variations in skin lesion…

Image and Video Processing · Electrical Eng. & Systems 2025-08-21 Xin Wang , Xiaopei Zhang , Xingang Wang

A great variety of models can describe the non-linear response of rubber to uni-axial tension. Yet an in-depth understanding of the successive stages of large extension is still lacking. We show that the response can be broken down in three…

Soft Condensed Matter · Physics 2017-04-12 Michel Destrade , Giuseppe Saccomandi , Ivonne Sgura

When a blood vessel ruptures or gets inflamed, the human body responds by rapidly forming a clot to restrict the loss of blood. Platelets aggregation at the injury site of the blood vessel occurring via platelet-platelet adhesion, tethering…

Tissues and Organs · Quantitative Biology 2015-06-18 Ziheng Wu , Zhiliang Xu , Oleg Kim , Mark Alber

Sensitivity analysis is an effective tool for systematically identifying specific perturbations in parameters that have significant effects on the behavior of a given biosystem, at the scale investigated. In this work, using a…

Quantitative Methods · Quantitative Biology 2007-12-04 Zhihui Wang , Christina M. Birch , Thomas S. Deisboeck

We propose a simple model for scaffold aided bone regeneration. In this model, only macroscopic quantities, e.g., locally averaged osteoblast densities, are considered. This allows for use of this model in an optimization algorithm, whose…

Tissues and Organs · Quantitative Biology 2021-10-15 Patrick Dondl , Marius Zeinhofer

An adequate control of cell response in tissue engineering applications is of utmost importance to obtain products suitable to clinical practice. This paper is the first part of a series of two connected publications in which we study via…

Tissues and Organs · Quantitative Biology 2015-12-08 Chiara Lelli , Riccardo Sacco , Paola Causin , Manuela T. Raimondi

The rapid collapse of a polymer, due to external forces or changes in solvent, yields a long-lived `crumpled globule.' The conjectured fractal structure shaped by hierarchical collapse dynamics has proved difficult to establish, even with…

Soft Condensed Matter · Physics 2015-10-07 Guy Bunin , Mehran Kardar

This paper proposes a modified Topological Data Analysis model for skin images preprocessing and enhancements. The skin lesion dataset HAM10000 used with the intention of identifying the important objects in relevant regions of the images.…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Hong Cheng , Rebekah Leamons , Ahmad Al Shami

Fracture resistance of blood clots plays a crucial role in physiological hemostasis and pathological thromboembolism. Although recent experimental and computational studies uncovered the poro-viscoelastic property of blood clots and its…

Medical Physics · Physics 2024-06-26 Dongxu Liu , Nhung Nguyen , Tinh Quoc Bui , Luka Pocivavsek

A multiphasic constitutive model of the skin that implicitly accounts for the process of intrinsic (i.e.\ chronological) ageing via variation of the constitutive parameters is proposed. The structurally-motivated constitutive formulation…

Biological Physics · Physics 2018-01-18 D Pond , A McBride , L Davids , B D Reddy , G Limbert

Skin lesion detection in dermoscopic images is essential in the accurate and early diagnosis of skin cancer by a computerized apparatus. Current skin lesion segmentation approaches show poor performance in challenging circumstances such as…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Pourya Shamsolmoali , Masoumeh Zareapoor , Eric Granger , Huiyu Zhou

We carry out the homogenization of a fluid-structure interaction problem consisting in the periodic inclusions of a viscous fluid in an elastic body. We get a macrostructure model where the body behaves as a viscoelastic material with a…

Analysis of PDEs · Mathematics 2024-05-20 Juan Casado-Díaz

This paper focuses on the analytic modelling of responses of cells in the body to ionizing radiation. The related mechanisms are consecutively taken into account and discussed. A model of the dose- and time-dependent adaptive response is…

One of the most important issue in soft tissue modeling is to assess the quality of the simulations. A validation protocol is presented based on two CT scans of the patient acquired before and after cranio-maxillofacial surgery. The actual…

Medical Physics · Physics 2007-05-23 Matthieu Chabanas , Christophe Marecaux , Franz Chouly , Franck Boutault , Yohan Payan

We propose a multiscale mechanobiological model of bone remodelling to investigate the site-specific evolution of bone volume fraction across the midshaft of a femur. The model includes hormonal regulation and biochemical coupling of bone…

Tissues and Organs · Quantitative Biology 2016-05-13 C. Lerebours , P. R. Buenzli , S. Scheiner , P. Pivonka

This thesis presents a two-layer uniform facet elastic object for real-time simulation based on physics modeling method. It describes the elastic object procedural modeling algorithm with particle system from the simplest one-dimensional…

Graphics · Computer Science 2009-09-30 Miao Song

Intraoperative observation of tissue internal structure is often difficult. Hence, real-time soft tissue deformation is essential for the localization of tumor and other internal structures. We propose a method to simulate the internal…

Computational Geometry · Computer Science 2019-07-26 Haoyin Zhou , Eva Gombos , Mehra Golshan , Jayender Jagadeesan

State of the art research and treatment of biological tissues require accurate and efficient methods for describing their mechanical properties. Indeed, micromechanics motivated approaches provide a systematic method for elevating relevant…

Soft Condensed Matter · Physics 2012-05-04 Gal deBotton , Tal Oren