1,734 results found
    1. Developmental Biology
    2. Physics of Living Systems

    Nuclear crowding and nonlinear diffusion during interkinetic nuclear migration in the zebrafish retina

    Afnan Azizi et al.
    The evolving spatial distribution of nuclei between apical and basal surfaces of the developing retinal neuroepithelium is quantitatively described by a nonlinear diffusion equation accounting for crowding within the tissue.
    1. Physics of Living Systems
    2. Structural Biology and Molecular Biophysics

    Myosin V executes steps of variable length via structurally constrained diffusion

    David Hathcock et al.
    A theoretical model comprehensively describes the stepping dynamics of the motor protein myosin V, unraveling the significance of a recently discovered structural constraint on the angle between its lever arms.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Length-dependent flagellar growth of Vibrio alginolyticus revealed by real time fluorescent imaging

    Meiting Chen et al.
    The length-dependent growth rate of bacterial flagellar filament is determined by the flagellin loading speed, loading strength and its diffusion process.
    1. Structural Biology and Molecular Biophysics
    2. Computational and Systems Biology

    Robust model-based analysis of single-particle tracking experiments with Spot-On

    Anders S Hansen et al.
    Spot-On is an easy-to-use website that makes a rigorous and bias-corrected modeling framework for analysis of single-molecule tracking experiments available to all.
    1. Physics of Living Systems

    Flower-like patterns in multi-species bacterial colonies

    Liyang Xiong et al.
    Mechanical interactions between bacterial species with different motility characteristics play an important role in spatial-temporal dynamics of multi-species bacterial colonies and can lead to formation of complex patterns.
    1. Physics of Living Systems

    Diffusion vs. direct transport in the precision of morphogen readout

    Sean Fancher, Andrew Mugler
    A theory predicts whether diffusion or direct transport establishes a more precise morphogen profile, and this prediction explains data from a wide variety of morphogens in two different organisms.
    1. Computational and Systems Biology
    2. Neuroscience

    Fundamental bound on the persistence and capacity of short-term memory stored as graded persistent activity

    Onur Ozan Koyluoglu et al.
    A fundamental lower-bound on memory recall precision, which declines with storage duration and number of stored items, is derived, and human performance is shown to be well-fit by this theoretical bound.
    1. Physics of Living Systems

    Length regulation of multiple flagella that self-assemble from a shared pool of components

    Thomas G Fai et al.
    In the microbe Chlamydomonas reinhardtii, a disassembly rate which depends on flagellar length provides an effective method to regulate the length of its two flagella.
    1. Computational and Systems Biology
    2. Physics of Living Systems

    Biophysical clocks face a trade-off between internal and external noise resistance

    Weerapat Pittayakanchit et al.
    Molecular clocks that are robust to external fluctuations are vulnerable to internal fluctuations and vice versa.
    1. Physics of Living Systems

    A multiphase theory for spreading microbial swarms and films

    Siddarth Srinivasan et al.
    A multiphase hydrodynamic theory reveals that the dynamics of colony expansion in microbial swarms and biofilms are limited by the constraints of water and nutrient availability.

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