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Sensory plasticity in a socially plastic bee [PDF]
Journal of Evolutionary Biology, 2022 AbstractThe social Hymenoptera have contributed much to our understanding of the evolution of sensory systems. Attention has focussed chiefly on how sociality and sensory systems have evolved together. In the Hymenoptera, the antennal sensilla are important for optimizing the perception of olfactory social information.
Boulton, Rebecca A., Field, Jeremy
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Plasticity, plasticity, plasticity…and the rigid problem of sex [PDF]
Trends in Cognitive Sciences, 2013 Why is popular understanding of female–male differences still based on rigid models of development, even though contemporary developmental sciences emphasize plasticity? Is it because the science of sex differences still works from the same rigid models?
Fine, Cordelia +3 more
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Developmental Cell, 2013 Pancreas homeostasis is based on replication of differentiated cells in order to maintain proper organ size and function under changing physiological demand. Recent studies suggest that acinar cells, the most abundant cell type in the pancreas, are facultative progenitors capable of reverting to embryonic-like multipotent progenitor cells under injury ...
Oren Ziv, Benjamin Glaser, Yuval Dor
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Micromechanical controls on the brittle-plastic transition in rocks [PDF]
, 2022 The rheology of rocks transitions from a localized brittle behaviour to distributed plastic behaviour with increasing pressure and temperature. This brittle-plastic is empirically observed to occur when the material strength becomes lower than the confining stress, which is termed Goetze's criterion.
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Plasticity of Inhibition [PDF]
Neuron, 2012 Until recently, the study of plasticity of neural circuits focused almost exclusively on potentiation and depression at excitatory synapses on principal cells. Other elements in the neural circuitry, such as inhibitory synapses on principal cells and the synapses recruiting interneurons, were assumed to be relatively inflexible, as befits a role of ...
DimitriýM. Kullmann +3 more
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NeuroRX, 2006 Over the past 20 years, evidence has mounted regarding the capacity of the central nervous system to alter its structure and function throughout life. Injury to the central nervous system appears to be a particularly potent trigger for plastic mechanisms to be elicited.
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Structure and size of the plastic zone formed during nanoindentation of a metallic glass [PDF]
Journal of Non-Crystalline Solids, Volume 523, (2019), 119593, 2019 Using molecular dynamics simulation, we study the plastic zone created during nanoindentation of a large CuZr glass system. The plastic zone consists of a core region, in which virtually every atom undergoes plastic rearrangement, and a tail, where the density distribution of the plastically active atoms decays to zero.
arxiv +1 more source
Deep Reinforcement Learning with Plasticity Injection [PDF]
arXiv, 2023 A growing body of evidence suggests that neural networks employed in deep reinforcement learning (RL) gradually lose their plasticity, the ability to learn from new data; however, the analysis and mitigation of this phenomenon is hampered by the complex relationship between plasticity, exploration, and performance in RL.
arxiv
Mode I crack tip fields: strain gradient plasticity theory versus J2 flow theory [PDF]
European Journal of Mechanics A/Solids (2019), 2019 The mode I crack tip asymptotic response of a solid characterised by strain gradient plasticity is investigated. It is found that elastic strains dominate plastic strains near the crack tip, and thus the Cauchy stress and the strain state are given asymptotically by the elastic K-field.
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