350 results found
    1. Ecology
    2. Evolutionary Biology

    Evolution of thorax architecture in ant castes highlights trade-off between flight and ground behaviors

    Roberto A Keller et al.
    Body shape and behavioural specializations found across the castes of ant species evolved together and reflect different abilities for ground behaviors.
    1. Neuroscience

    CA1 cell activity sequences emerge after reorganization of network correlation structure during associative learning

    Mehrab N Modi et al.
    As mice learn to associate events separated in time, neurons within the CA1 region of the hippocampus progressively reorganize their firing patterns, leading to a relay of cellular activity that bridges the two events.
    1. Immunology and Inflammation

    Pak2 is required for actin cytoskeleton remodeling, TCR signaling, and normal thymocyte development and maturation

    Hyewon Phee et al.
    The p21-activated kinase 2 (Pak2) is an essential regulator that governs the actin cytoskeleton-dependent signaling to ensure normal thymocyte development, maturation and egress.
    1. Plant Biology

    Combining growth-promoting genes leads to positive epistasis in Arabidopsis thaliana

    Hannes Vanhaeren et al.
    Pairwise combinations of growth-promoting genes regulating distinct cellular mechanisms lead to synergistic effects on leaf growth, and hence greatly increased leaf size.
    1. Computational and Systems Biology
    2. Medicine

    Diagnostically relevant facial gestalt information from ordinary photos

    Quentin Ferry et al.
    An automatic computer vision analysis approach can assist in the diagnosis of rare genetic disorders by using ordinary photographs of patients.
    1. Neuroscience

    PDF neuron firing phase-shifts key circadian activity neurons in Drosophila

    Fang Guo et al.
    A few circadian ‘evening’ neurons within the Drosophila brain play a key role in driving activity as well as keeping time, whereas the well-known PDF-containing morning cells are likely involved in integrating and transmitting light information.
    1. Evolutionary Biology
    2. Plant Biology

    The role of photorespiration during the evolution of C4 photosynthesis in the genus Flaveria

    Julia Mallmann et al.
    Metabolic exaptation of an anaplerotic nitrogen cycle between bundle sheath and mesophyll cells may explain the remarkably frequent convergent evolution of C4 photosynthesis.
  1. Research: Financial costs and personal consequences of research misconduct resulting in retracted publications

    Andrew M Stern et al.
    In the first study attempting to formally quantify the deleterious impact of research misconduct on funding sources and publication output, we found that misconduct accounts for a small but substantial portion of American biomedical science funding dollars and damages the productivity and rate of funding acquisition of those who commit misconduct.
    1. Biochemistry and Chemical Biology

    Adipocyte ALK7 links nutrient overload to catecholamine resistance in obesity

    Tingqing Guo et al.
    The ALK7 receptor functions cell-autonomously and homeostatically in adult adipocytes to regulate catecholamine sensitivity in response to the diet.
    1. Developmental Biology

    Pvr expression regulators in equilibrium signal control and maintenance of Drosophila blood progenitors

    Bama Charan Mondal et al.
    The THAP-domain protein Bip1, along with other proteins Nup98 and RpS8, controls the expression of the protein Pvr, a critical non-cell-autonomous regulator of Drosophila blood progenitor maintenance.

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