Browse the search results

Page 2 of 324
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    Defining the ultrastructure of the hematopoietic stem cell niche by correlative light and electron microscopy

    Sobhika Agarwala, Keun-Young Kim ... Owen J Tamplin
    Multiple imaging modalities resolved the ultrastructure of single hematopoietic stem cells in their endogenous niche, allowing identification of dopamine beta-hydroxylase positive cells as a functional niche cell type.
    1. Neuroscience

    Alpha/beta power decreases track the fidelity of stimulus-specific information

    Benjamin James Griffiths, Stephen D Mayhew ... Simon Hanslmayr
    Neural representations of stimulus-specific information increase in fidelity as the power of alpha/beta activity decreases, suggesting that alpha/beta power decreases reflect a domain-general mechanism that supports information representation.
    1. Neuroscience

    Balancing true and false detection of intermittent sensory targets by adjusting the inputs to the evidence accumulation process

    Anna C Geuzebroek, Hannah Craddock ... Simon P Kelly
    In order to adjust for expected difficulty level while detecting unpredictably timed target within continuous streams of noisy information, people regulate the transfer of the sensory inputs to the accumulation process.
    1. Cell Biology
    2. Developmental Biology

    Tgfβ signaling is critical for maintenance of the tendon cell fate

    Guak-Kim Tan, Brian A Pryce ... Ronen Schweitzer
    Conditional deletion of TGFβ signaling results in tenocyte dedifferentiation in vivo demonstrating a key role for TGFβ signaling in the maintenance of the tendon cell fate.
    1. Neuroscience

    Neural basis of somatosensory target detection independent of uncertainty, relevance, and reports

    Pia Schröder, Timo Torsten Schmidt, Felix Blankenburg
    Neural correlates of somatosensory target detection are restricted to secondary somatosensory cortex, whereas activity in insular, cingulate, and motor regions reflects stimulus uncertainty and overt reports.
    1. Neuroscience

    Non-selective inhibition of inappropriate motor-tendencies during response-conflict by a fronto-subthalamic mechanism

    Jan R Wessel, Darcy A Waller, Jeremy DW Greenlee
    Action-selection under response-conflict is buttressed by an inhibitory control signal from the basal ganglia that non-selectively suppresses motor excitability.
    1. Epidemiology and Global Health

    COVID-19 pandemic dynamics in South Africa and epidemiological characteristics of three variants of concern (Beta, Delta, and Omicron)

    Wan Yang, Jeffrey L Shaman
    Model-inference reconstructed SARS-CoV-2 transmission dynamics in South Africa during March 2020 to February 2022, and quantified the immune erosion potential and transmissibility of three major variants (Beta, Delta, and Omicron), highlighting their common characteristics and the need for more proactive preparedness.
    1. Neuroscience

    Frontal beta-theta network during REM sleep

    Sujith Vijayan, Kyle Q Lepage ... Sydney S Cash
    Two regions of the frontal lobe – the anterior cingulate cortex and, unexpectedly, the dorsolateral prefrontal cortex – show coordinated rhythmic activity during REM sleep.
    1. Structural Biology and Molecular Biophysics

    Mechanism of pharmacochaperoning in a mammalian KATP channel revealed by cryo-EM

    Gregory M Martin, Min Woo Sung ... Show-Ling Shyng
    Diverse KATP channel inhibitors occupy a common binding pocket and stabilize an interaction between Kir6.2 and SUR1 to allosterically control gating and promote the assembly and trafficking of nascent channels.
    1. Structural Biology and Molecular Biophysics

    Accelerated cryo-EM structure determination with parallelisation using GPUs in RELION-2

    Dari Kimanius, Björn O Forsberg ... Erik Lindahl
    Using GPUs for the costly computations in cryo-EM enables structure determination in mere days on a single workstation.