236 results found
  1. Episode 38: May 2017

    In this episode we hear about biofilms in bacteria, drug production, gender bias in peer review, nematode worms and how synchronising brain waves can boost memory.
    1. Neuroscience

    TrpML-mediated astrocyte microdomain Ca2+ transients regulate astrocyte–tracheal interactions

    Zhiguo Ma, Marc R Freeman
    Astrocyte microdomain calcium transients are mediated by TrpML, stimulated by ROS and tyramine, and mediate astrocyte–tracheal interactions in CNS gas exchange.
    1. Neuroscience

    Cerebellar learning using perturbations

    Guy Bouvier et al.
    A proposal for a complete cellular/network implementation of trial-and-error motor learning in the olivo-cerebellar system.
    1. Ecology
    2. Plant Biology

    Seasonal shift in timing of vernalization as an adaptation to extreme winter

    Susan Duncan et al.
    An adaptation to extreme winter has involved a shift to autumn temperature monitoring.
    1. Cell Biology

    An extensive program of periodic alternative splicing linked to cell cycle progression

    Daniel Dominguez et al.
    Extensive periodic regulation of alternative splicing during the cell cycle in genes is linked to cell cycle functions, and involves an auto-inhibitory mechanism that uses the protein kinase CLK1.
    1. Neuroscience

    Output variability across animals and levels in a motor system

    Angela Wenning et al.
    Population output variability in a motor control system varies across levels (CPG, motor neurons, muscles) and can be ascribed to life history differences among animals and in some cases to differences between bilaterally homologous elements.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    IP3 mediated global Ca2+ signals arise through two temporally and spatially distinct modes of Ca2+ release

    Jeffrey T Lock, Ian Parker
    Cell-wide Ca2+ signals that regulate numerous cellular functions comprise dual Ca2+ release modes through IP3 receptors, punctate transients mediated by clustered receptors and spatiotemporally diffuse release through functionally distinct receptors.
    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. Neuroscience

    Precise excitation-inhibition balance controls gain and timing in the hippocampus

    Aanchal Bhatia et al.
    Delayed inhibition precisely balances excitation from arbitrary combinations of CA3 neurons and controls the gain of CA1 output by reducing inhibitory delay with increasing excitation.
    1. Neuroscience

    Lamina-specific cortical dynamics in human visual and sensorimotor cortices

    James J Bonaiuto et al.
    Cortical oscillations in human MEG are lamina-specific, with low-frequency activity predominating in deep, and high-frequency activity in more superficial layers of sensory and motor cortices.

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