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We demonstrate that characteristic nodules emerge in cultures of several malignant pleural mesothelioma (MPM) cell lines. Instead of excessive local cell proliferation, the nodules arise by Myosin II-driven cell contractility. The…

Experiments reveal that structural transitions in thin sheets are mediated by the passage of transient and stable mobile localized elastic excitations. These ``crumples'' or ``d-cones'' nucleate, propagate, interact, annihilate, and escape.…

软凝聚态物质 · 物理学 2026-02-06 R. S. Hutton , E. Vitral , E. Hamm , J. A. Hanna

We study the model of a molecular switch comprised of a molecule with a soft vibrational degree of freedom coupled to metallic leads. In the presence of strong electron-ion interaction, different charge states of the molecule correspond to…

介观与纳米尺度物理 · 物理学 2008-12-18 Fabio Pistolesi , Yaroslav M. Blanter , Ivar Martin

Several results in previous works, strongly depend on the exponential tail of the linkages' distribution in our adhesive models. The purpose of this paper is to weaken this hypothesis and to allow more fat tails for large ages. From the…

偏微分方程分析 · 数学 2024-07-09 Samar Allouch , Vuk Milisic

We systematically explore the self-assembly of semi-flexible polymers in deformable spherical confinement across a wide regime of chain stiffness, contour lengths and packing fractions by means of coarse-grained molecular dynamics…

软凝聚态物质 · 物理学 2021-07-12 Maxime M. C. Tortora , Daniel Jost

The effect of chain topology on the statics and dynamics of chain at the interface of two immiscible fluids is studied by means of molecular dynamics simulations. For three topologically different chains, namely, linear, ring, and…

软凝聚态物质 · 物理学 2024-08-01 Jenis Thongam , Lenin S. Shagolsem

The $\alpha$ and $\beta$ subunits comprising the hexameric assembly of F1-ATPase share a high degree of structural identity, though low primary identity. Each subunit binds nucleotide in similar pockets, yet only $\beta$ subunits are…

生物大分子 · 定量生物学 2016-11-08 Monique M. Tirion

Links and knots are exotic topological structures that have garnered significant interest across multiple branches of natural sciences. Coherent links and knots, such as those constructed by phase or polarization singularities of coherent…

光学 · 物理学 2025-04-08 Zhuoyi Wang , Xingyuan Lu , Zhigang Chen , Yangjian Cai , Chengliang Zhao

We investigate the transient effects occurring in a molecular quantum dot described by an Anderson-Holstein Hamiltonian which is instantly coupled to two fermionic leads biased by a finite voltage. In the limit of weak electron-phonon…

介观与纳米尺度物理 · 物理学 2010-03-30 R. -P. Riwar , T. L. Schmidt

We consider a phase-separating mixture of active and passive fluids and explore morphological asymmetries of the emerging dominantly bicontinous dynamic emulsion. Two-dimensional numerical simulations reveal that the geometric and…

软凝聚态物质 · 物理学 2026-01-22 Rainer Backofen , Axel Voigt

We study the geometry of interacting knotted solitons. The interaction is local and advances either as a three-body or as a four-body process, depending on the relative orientation and a degeneracy of the solitons involved. The splitting…

高能物理 - 理论 · 物理学 2009-10-31 Antti J. Niemi

Physical knot classification is a challenging fine-grained recognition task in which the intended discriminative cue is rope crossing structure; however, high closed-set accuracy may still arise from low-level appearance shortcuts rather…

计算机视觉与模式识别 · 计算机科学 2026-04-23 Shiheng Nie , Yunguang Yue

Stacking two layers of graphene with a relative twist angle gives rise to moir\'e patterns, which can strongly modify electronic behavior and may lead to unconventional superconductivity. A synthetic version of twisted bilayers can be…

Topological entanglements are abundant, and often detrimental, in polymeric systems in biology and materials science. Here we theoretically investigate the topological simplification of knots by diffusing slip-links (SLs), which may…

软凝聚态物质 · 物理学 2020-11-02 Andrea Bonato , Davide Marenduzzo , Davide Michieletto

We consider the soft Boolean model, a model that interpolates between the Boolean model and long-range percolation, where vertices are given via a stationary Poisson point process. Each vertex carries an independent Pareto-distributed…

概率论 · 数学 2024-04-23 Benedikt Jahnel , Lukas Lüchtrath , Marcel Ortgiese

Embryonic development involves pattern formation characterized by the emergence of spatially localized domains characterized by distinct cell fates resulting from differential gene expression. The boundaries demarcating these domains are…

组织与器官 · 定量生物学 2024-06-11 Chandrashekar Kuyyamudi , Shakti N. Menon , Sitabhra Sinha

We study the crossover from self--similar scaling behavior to asymptotically self--affine (anisotropic) structures. As an example, we consider bond percolation with one preferred direction. Our theory is based on a field--theoretical…

凝聚态物理 · 物理学 2009-10-22 Erwin Frey , Uwe Claus Täuber , Franz Schwabl

The viscosity dependence of the folding rates for four sequences (the native state of three sequences is a beta-sheet, while the fourth forms an alpha-helix) is calculated for off-lattice models of proteins. Assuming that the dynamics is…

软凝聚态物质 · 物理学 2009-10-30 D. K. Klimov , D. Thirumalai

$\alpha$-helices stand out as common and relatively invariant secondary structural elements of proteins. However, $\alpha$-helices are not rigid bodies and their deformations can be significant in protein function ({\it e.g.} coiled coils).…

统计力学 · 物理学 2007-05-23 Eldon G. Emberly , Ranjan Mukhopadhyay , Ned S. Wingreen , Chao Tang

Many native structures of proteins accomodate complex topological motifs such as knots, lassos, and other geometrical entanglements. How proteins can fold quickly even in the presence of such topological obstacles is a debated question in…

软凝聚态物质 · 物理学 2020-10-07 Federico Norbiato , Flavio Seno , Antonio Trovato , Marco Baiesi