Browse our latest Physics of Living Systems articles

Page 24 of 54
    1. Developmental Biology
    2. Physics of Living Systems

    Characterization of convergent thickening, a major convergence force producing morphogenic movement in amphibians

    David R Shook, Jason WH Wen ... Ray E Keller
    Xenopus embryos use tissue surface tension to generate hoop-stress around the blastopore to help close it during gastrulation.
    1. Cell Biology
    2. Physics of Living Systems

    Leading edge maintenance in migrating cells is an emergent property of branched actin network growth

    Rikki M Garner, Julie A Theriot
    Computational simulations of actin network growth at the cell leading edge, combined with careful high-speed video microscopy measurements of leading edge shape fluctuations, suggest that Arp2/3 branching of the actin network occurs at an optimal angle to minimize fluctuations.
    1. Neuroscience
    2. Physics of Living Systems

    Unsupervised Bayesian Ising Approximation for decoding neural activity and other biological dictionaries

    Damián G Hernández, Samuel J Sober, Ilya Nemenman
    The proposed method deciphers which low-level patterns (such as spikes) control high-level features (behavior) in relative small biological datasets, taking into account the statistical dependencies between such patterns.
    1. Physics of Living Systems

    How to assemble a scale-invariant gradient

    Arnab Datta, Sagnik Ghosh, Jane Kondev
    Intracellular protein gradients, which are formed by the combined action of cytoplasmic diffusion and cortical transport toward the cell pole, are solely determined by cell shape.
    1. Physics of Living Systems

    Large-scale orientational order in bacterial colonies during inward growth

    Mustafa Basaran, Y Ilker Yaman ... Askin Kocabas
    When crowded bacterial colonies invade a closed area, flow-induced alignment creates strong radial orientation and leads to the formation of aster defects.
    1. Cell Biology
    2. Physics of Living Systems

    Persistent cell migration emerges from a coupling between protrusion dynamics and polarized trafficking

    Kotryna Vaidžiulytė, Anne-Sophie Macé ... Mathieu Coppey
    Quantitative proof that persistent cell migration in the timescale of hours relies on a feedback between polarized trafficking and protrusive activity stabilizing cell front.
    1. Ecology
    2. Physics of Living Systems

    Particle foraging strategies promote microbial diversity in marine environments

    Ali Ebrahimi, Akshit Goyal, Otto X Cordero
    An ecological trade-off between growth and death enables microbes with different dispersal strategies to coexist on particulate matter in the oceans.
    1. Cell Biology
    2. Physics of Living Systems

    Cortical waves mediate the cellular response to electric fields

    Qixin Yang, Yuchuan Miao ... Wolfgang Losert
    Electrical and biomechanical stimuli directly bias cortical signal transduction and cytoskeletal waves, and the direct bias induced by an electric field develops slowly compared to the rapid surface-receptor-mediated response to chemotactic gradients.
    1. Biochemistry and Chemical Biology
    2. Physics of Living Systems

    A coarse-grained NADH redox model enables inference of subcellular metabolic fluxes from fluorescence lifetime imaging

    Xingbo Yang, Gloria Ha, Daniel J Needleman
    Mitochondrial metabolic fluxes display a subcellular spatial gradient within a single mouse oocyte, and the fluxes are not controlled by nutrient supply or energy demand of the cell, but by the intrinsic rates of mitochondrial respiration.
    1. Physics of Living Systems

    Humans optimally anticipate and compensate for an uneven step during walking

    Osman Darici, Arthur D Kuo
    Humans can predict and optimally plan goal-directed dynamic walking tasks that have transient events such as negotiating a sidewalk curb.