5,173 results found
    1. Physics of Living Systems

    Surface-to-volume scaling and aspect ratio preservation in rod-shaped bacteria

    Nikola Ojkic et al.
    Rod-shaped bacteria preserve their aspect ratios and surface-to-volume scaling by maintaining a homeostatic balance between the rates of cell elongation and division protein synthesis.
    1. Ecology

    Signaling cascades and the importance of moonlight in coral broadcast mass spawning

    Paulina Kaniewska et al.
    Artificial light causes changes to gene expression and cellular signaling cascades that coordinate mass spawning events for a species of coral from the Great Barrier Reef.
    1. Physics of Living Systems

    Body size-dependent energy storage causes Kleiber’s law scaling of the metabolic rate in planarians

    Albert Thommen et al.
    A combination of experimental and theoretical analysis identifies body size-dependent energy storage as the physiological cause of 3/4-power law scaling of the metabolic rate in planarians.
    1. Neuroscience

    Synaptic up-scaling preserves motor circuit output after chronic, natural inactivity

    Joseph M Santin et al.
    Synaptic scaling maintains motor output from the respiratory network of bullfrogs after months of inactivity in the winter, providing evidence for homeostatic plasticity in response to large ecologically relevant perturbations in neuronal activity.
    1. Cell Biology
    2. Developmental Biology

    Mitotic spindle scaling during Xenopus development by kif2a and importin α

    Jeremy D Wilbur, Rebecca Heald
    An interaction between two proteins enables the spindle—the structure that segregates chromosome pairs during mitosis—to change size as cells divide.
    1. Chromosomes and Gene Expression

    An mRNA-binding channel in the ES6S region of the translation 48S-PIC promotes RNA unwinding and scanning

    Irene Díaz-López et al.
    The ES6S region of the small subunit ribosome makes a place for the threading and secondary structure unwinding of mRNA, which regulates genome-wide translation.
    1. Cell Biology
    2. Neuroscience

    Time- and polarity-dependent proteomic changes associated with homeostatic scaling at central synapses

    Christoph T Schanzenbächer et al.
    Metabolic labelling and quantitative proteomics reveal the temporal evolution of cellular and neuronal responses to global activity manipulations.
    1. Neuroscience

    Offline replay supports planning in human reinforcement learning

    Ida Momennejad et al.
    fMRI evidence for off-task replay predicts subsequent replanning behavior in humans, suggesting that learning from simulated experience during replay helps update past policies in reinforcement learning.
    1. Developmental Biology
    2. Neuroscience

    Genetic mechanisms control the linear scaling between related cortical primary and higher order sensory areas

    Andreas Zembrzycki et al.
    Primary and higher order visual area dimensions in the neocortex are determined by the same genetic mechanisms during development which in turn also control the proportionate scaling between them.
    1. Immunology and Inflammation

    The innate immune sensor IFI16 recognizes foreign DNA in the nucleus by scanning along the duplex

    Sarah A Stratmann et al.
    The scanning-assisted clustering mechanism of IFI16 not only allows efficient assembly on exposed foreign-dsDNA, but also suppresses the engagement of chromatinized self-dsDNA.

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