Is cell segregation like oil and water: asymptotic versus transitory regime

Segregation of different cell types is a crucial process for the pattern formation in tissues, in particular during embryogenesis. Since the involved cell interactions are complex and difficult to measure individually in experiments, mathematical modelling plays an increasingly important role to unravel the mechanisms governing segregation. The analysis of these theoretical models focuses mainly on the asymptotic behavior at large times, in a steady regime and for large numbers of cells. Most famously, cell-segregation models based on the minimization of the total surface energy, a mechanism also driving the demixing of immiscible fluids, are known to exhibit asymptotically a particular algebraic scaling behavior. However, it is not clear, whether the asymptotic regime of the numerical models is relevant at the spatio-temporal scales of actual biological processes and in-vitro experiments. By developing a mapping between cell-based models and experimental settings, we are able to directly compare previous experimental data to numerical simulations of cell segregation quantitatively. We demonstrate that the experiments are reproduced by the transitory regime of the models rather than the asymptotic one. Our work puts a new perspective on previous model-driven conclusions on cell segregation mechanisms.Comment: 24 pages, 7+4 figure

Proceedings of the 23th Bilateral Student Workshop CTU Prague: Dresden (Germany) 2019

This technical report publishes the proceedings of the 23th Prague Workshop, which was held from 29th to 30th November 2019. The workshop offers a possibility for young scientists to present their current research work in the fields of computer graphics, human-computer-interaction, robotics and usability. The works is meant as a platform to bring together researchers from both the Czech Technical University in Prague (CTU) and the University of Applied Sciences Dresden (HTW). The German Academic Exchange Service offers its financial support to allow student participants the bilateral exchange between Prague and Dresden.:1) Incremental Pose Estimation of multiple LiDAR Scanners using their Pointclouds, S.3 2) Soft- and Hardware Developments for Immersive Learning, S.6 3) Qualitative comparison of methods for example-based style transfer, S.13 4) External Labeling With Utilization of Containment Information, S.16 5) Real Time Viewing Direction Analysis to Store Recognized Faces, S.20 6) Raising living standards of older adults - User research, S.29 7) Raising living standards of older adults - Concept, S.33 8) Towards the RoNiSCo Mobile Application, S.36 9) Development of a Fallen People Detector, S.41 10) Interactive tactile map for visually impaired older adults, S.47 11) Physical 3D LED display, S.5

Proceedings of the 22th Bilateral Student Workshop CTU Prague: Dresden (Germany) 2018

This technical report publishes the proceedings of the 22th Prague Workshop, which was held from 30th November to 1st December 2018. The workshop offers a possibility for young scientists to present their current research work in the fields of computer graphics, human-computer-interaction, robotics and usability. The works is meant as a platform to bring together researchers from both the Czech Technical University in Prague (CTU) and the University of Applied Sciences Dresden (HTW). The German Academic Exchange Service offers its financial support to allow student participants the bilateral exchange between Prague and Dresden.:1) An approach to a self-organizing production in com- parison to a centrally planned production 4 2) Tactile symbols for visually impaired older adults 9 3) Design of Olfactory Cues for Approximate Spatial Self- Localization 11 4) Shape To Muscle: A Model for estimating Muscle Activation from Skin Deformation 13 5) Model of a Conversational System for Controlling Sec- ondary Tasks while Driving 19 6) Tools for Art and Architectural Research with His- toric Media Repositories 22 7) Direct Labels: Real-time External Labeling Without Leader Lines 25 8) Seamless Cloning with Poisson Image Editing 29 9) Multimodal user interaction for human behavior mod- eling in adaptation and personalization 32 10) Objective Feature Selection using GMLVQ with Di- rectly Incorporated L1-Regularization 35 11) How to Call a Robot in an Emergency Situation 37 12) Development of a Collaborative Computer Game for Elderly with Dementia 3

24th Bilateral Student Workshop CTU Prague and HTW Dresden - User Interfaces & Visualization

This technical report publishes the proceedings of the 24th Bilateral Student Workshop CTU Prague and HTW Dresden -User Interfaces & Visualization-, which was held on the 26th November 2021. The workshop offers a possibility for young scientists to present their current research work in the fields of computer graphics, human-computer-interaction, robotics and usability. The works is meant as a platform to bring together researchers from both the Czech Technical University in Prague (CTU) and the University of Applied Sciences Dresden (HTW). The German Academic Exchange Service offers its financial support to allow student participants the bilateral exchange between Prague and Dresden.:1) Robot assisted reminiscence therapy for people with dementia, p.4 2) VENT-CONECT: System for remote monitoring of instruments used in intensive care, p.12 3) Conversational assistant for smart home, p.17 4) Perspectives and challenges of the research project ”SYNC ID” , p.23 5) Music-based emotional biofeedback: the state of the art and challenges, p.26 6) Ambient Assisted Living Lab - Smart Systems and CoCreation, p.30 7) Board Game Playing and Consuming Beverages in VR, p.36 8) An approach to measure and increase the level of participation of people with dementia in cognitive games, p.41 9) Forced perspective illusions and scaling users in VR - state of the art., p.47 10) Training Deep Learning Models for Punctuation Prediction, p.51 11) Towards an Evaluation of Ambiguity in Point-Feature Labelling, p.56 12) The ReZA method goes digital, p.60 13) Haptic interface for spatial audio web player, p.6

Metal uptake and distribution in the zebrafish (Danio rerio) embryo: differences between nanoparticles and metal ions

Quantitative data on nanoparticle and cation uptake are compared in a compartment-specific way and distinct differences between metals were identified

Proceedings of the 19th Bilateral Student Workshop CTU Prague: Dresden (Germany) 2015

This technical report publishes the proceedings of the 19th Prague Workshop, which was held from 27th to 28. November 2015. The workshop offers a possibility for young scientists to present their current research work in the fields of computer graphics, human-computer-interaction, robotics and usability. The works is meant as a platform to bring together researchers from both the Czech Technical University in Prague (CTU) and the University of Applied Sciences Dresden (HTW). The German Academic Exchange Service offers its financial support to allow student participants the bilateral exchange between Prague and Dresden

Proceedings of the 25th Bilateral Student Workshop CTU Prague and HTW Dresden - User Interfaces & Visualization

This technical report publishes the proceedings of the 25th Bilateral Student Workshop CTU Prague and HTW Dresden - User Interfaces & Visualization -, which was held on the 25th and 26th November 2021. The workshop offers a possibility for young scientists to present their current research work in the fields of computer graphics, human-computer-interaction, robotics and usability. The works is meant as a platform to bring together researchers from both the Czech Technical University in Prague (CTU) and the University of Applied Sciences Dresden (HTW). The German Academic Exchange Service offers its financial support to allow student participants the bilateral exchange between Prague and Dresden.:1) Multiprojection of Langweil´s model, p.4 2) Design of an assistant for persons interested in study at CTU FEE, p.8 3) Sonification of a juggling performance, p.12 4) Investigating the Role of Usability User Experience and Aesthetics for Industrial Human–Machine Interfaces, p.16 5) Using optically illusive architecture to navigate users in Virtual Reality, p.23 6) Speed and Required Precision of Grabbing Physical Spheres in VR, p.27 7) ReFlex - A Framework for Research on Elastic Displays, p.32 8) Digital Reading Stand (DRS), p.38 9) IDOVIR – Infrastructure for Documentation of Virtual Reconstructions, p.45 10) Tracking multiple VR users in a shared physical space, p.50 11) Towards Aesthetics of Subjectivity in InfoVis, p.53 12) VentConnect: live to life and the octopus in the hospital server room, p.60 13) Nice noise: background noise enhancement with generated musical content, p.66 14) Parametric Curve Labeling, p.7