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Crystalline defects, such as line-like dislocations, play an important role for the performance and reliability of many metallic devices. Their interaction and evolution still poses a multitude of open questions to materials science and…

计算机视觉与模式识别 · 计算机科学 2023-07-13 Kishan Govind , Daniela Oliveros , Antonin Dlouhy , Marc Legros , Stefan Sandfeld

Collective guidance of out-of-equilibrium systems without using external fields is a challenge of paramount importance in active matter, ranging from bacterial colonies to swarms of self-propelled particles. Designing strategies to guide…

Topological defects play a critical role across many fields, mediating phase transitions and macroscopic behaviors as they move through space. Their role as robust information carriers has also generated much attention. However, controlling…

We study how topological crystalline defects--dislocations--reshape the real-space quantum geometric tensor and act as tunable sources of quantum geometry. We show that dislocations strongly enhance the quantum metric, establishing a direct…

介观与纳米尺度物理 · 物理学 2025-12-22 Carlos Saji , Roberto E. Troncoso

Graph embeddings have emerged as a powerful tool for representing complex network structures in a low-dimensional space, enabling the use of efficient methods that employ the metric structure in the embedding space as a proxy for the…

社会与信息网络 · 计算机科学 2024-04-18 Radosław Nowak , Adam Małkowski , Daniel Cieślak , Piotr Sokół , Paweł Wawrzyński

Metabolism is a fascinating cell machinery underlying life and disease and genome-scale reconstructions provide us with a captivating view of its complexity. However, deciphering the relationship between metabolic structure and function…

分子网络 · 定量生物学 2011-09-12 M. Angeles Serrano , Marian Boguna , Francesc Sagues

Collective cell migration governs a range of physiological and pathological processes, from tissue morphogenesis to cancer invasion, in which topological defects arise as an inevitable consequence of frequent cellular rearrangement and…

软凝聚态物质 · 物理学 2026-04-01 Jiusi Zhang , Chung Wing Chan , Bo Li , Rui Zhang

Disordered systems like liquids, gels, glasses, or granular materials are not only ubiquitous in daily life and in industrial applications but they are also crucial for the mechanical stability of cells or the transport of chemical and…

无序系统与神经网络 · 物理学 2019-04-30 Zhen Zhang , Walter Kob

To quantify the fundamental evolution of time-varying networks, and detect abnormal behavior, one needs a notion of temporal difference that captures significant organizational changes between two successive instants. In this work, we…

社会与信息网络 · 计算机科学 2017-08-17 Nathan D Monnig , Francois G Meyer

Sparsification aims at extracting a reduced core of associations that best preserves both the dynamics and topology of networks while reducing the computational cost of simulations. We show that the semi-metric topology of complex networks…

物理与社会 · 物理学 2025-06-05 David Soriano Paños , Felipe Xavier Costa , Luis M. Rocha

The appearance of wireless communication is dramatically changing our life. Mobile telecommunications emerged as a technological marvel allowing for access to personal and other services, devices, computation and communication, in any place…

数据库 · 计算机科学 2011-04-15 Alaa H. AL-Hamami , Soukaena H. Hashem

Fiber tractography on diffusion imaging data offers rich potential for describing white matter pathways in the human brain, but characterizing the spatial organization in these large and complex data sets remains a challenge. We show that…

统计方法学 · 统计学 2015-06-18 Brian P. Kent , Alessandro Rinaldo , Fang-Cheng Yeh , Timothy Verstynen

Quantitative Transmission Electron Microscopy (TEM) during in-situ straining experiment is able to reveal the motion of dislocations -- linear defects in the crystal lattice of metals. In the domain of materials science, the knowledge about…

计算机视觉与模式识别 · 计算机科学 2023-09-08 Karina Ruzaeva , Kishan Govind , Marc Legros , Stefan Sandfeld

Trees have long been used as a graphical representation of species relationships. However complex evolutionary events, such as genetic reassortments or hybrid speciations which occur commonly in viruses, bacteria and plants, do not fit into…

种群与进化 · 定量生物学 2017-07-24 Sebastien Roch , Kun-Chieh Wang

Conformational transitions are ubiquitous in biomolecular systems, have significant functional roles and are subject to evolutionary pressures. Here we provide a first theoretical framework for topological transition, i.e. conformational…

无序系统与神经网络 · 物理学 2015-09-02 Alireza Mashaghi , Abolfazl Ramezanpour

Topology provides a unifying framework for understanding robust transport through protected edge states arising from nontrivial wavenumber topology. Extending these concepts to active matter, however, remains largely unexplored…

软凝聚态物质 · 物理学 2026-01-14 Yoshihito Uchida , Daiki Nishiguchi , Kazumasa A. Takeuchi

Recent advances in cellular research demonstrate that scRNA-seq characterizes cellular heterogeneity, while spatial transcriptomics reveals the spatial distribution of gene expression. Cell representation is the fundamental issue in the two…

基因组学 · 定量生物学 2025-01-16 Kai Zheng , Shaokai Wang , Yunpei Xu , Qiming Lei , Qichang Zhao , Xiao Liang , Qilong Feng , Yaohang Li , Min Li , Jinhui Xu , Jianxin Wang

Scanning transmission electron microscopy (STEM) has advanced rapidly in the last decade thanks to the ability to correct the major aberrations of the probe forming lens. Now atomic-sized beams are routine, even at accelerating voltages as…

A well-defined distance on the parameter space is key to evaluating estimators, ensuring consistency, and building confidence sets. While there are typically standard distances to adopt in a continuous space, this is not the case for…

统计理论 · 数学 2026-02-02 Armeen Taeb , F. Richard Guo , Leonard Henckel

Flocking models with metric and topological interactions are supposed to exhibit distinct features, as for instance the presence and absence of moving polar bands. On the other hand, quenched disorder (spatial heterogeneities) has been…

生物物理 · 物理学 2022-01-04 Parisa Rahmani , Fernando Peruani , Pawel Romanczuk