Results 61 to 70 of about 3,075,584 (328)

Phase equivalent potentials, Complex coordinates and Supersymmetric Quantum Mechanics [PDF]

J.Phys. A: Math. Gen. 39 (2006) 14499-14509, 2006
Supersymmetric Quantum Mechanics may be used to construct reflectionless potentials and phase-equivalent potentials. The exactly solvable case of the $\lambda sech^2$ potential is used to show that for certain values of the strength $\lambda$ the phase-equivalent singular potential arising from the elimination of all the boundstates is identical to the
arxiv   +1 more source

Long-term potentiation decay and memory loss are mediated by AMPAR endocytosis.

Journal of Clinical Investigation, 2015
Long-term potentiation (LTP) of synaptic strength between hippocampal neurons is associated with learning and memory, and LTP dysfunction is thought to underlie memory loss. LTP can be temporally and mechanistically classified into decaying (early-phase)
Zhifang Dong, Huili Han, Hongjie Li, Yanrui Bai, Wei Wang, Man Tu, Yan Peng, Limin Zhou, Wenting He, Xiaobin Wu, Tao Tan, Mingjing Liu, Xiaoyan Wu, Weihui Zhou, W. Jin, Shu Zhang, T. Sacktor, Tingyu Li, Weihong Song, Yu Tian Wang   +19 more
semanticscholar   +1 more source

Electric Pulse Regulated MXene Based Nanozymes for Integrative Bioelectricity Immuno‐Cancer Therapy

Advanced Functional Materials, EarlyView.
MXenzyme‐mediated bioelectricity cancer therapy (MXenzyme‐BECT) enhances cancer cell death through irreversible depolarization, ion channel disruption, ROS generation, and immunogenic cell death. Computational simulations reveal the electrical mechanisms by which MXenzyme acts on single cells and support to predict treatment parameters. Next‐generation
Sanghee Lee, Seongchan Kim, Eui‐Sang Yu, Sian Lee, Min Jun Ko, Hyojin Lee, Dong‐Hyun Kim   +6 more
wiley   +1 more source

Modeling Maintenance of Long-Term Potentiation in Clustered Synapses: Long-Term Memory without Bistability

Neural Plasticity, 2015
Memories are stored, at least partly, as patterns of strong synapses. Given molecular turnover, how can synapses maintain strong for the years that memories can persist?
Paul Smolen
doaj   +1 more source

Solitons supported by complex PT symmetric Gaussian potentials [PDF]

Physical Review A 84, 043818 (2011), 2011
The existence and stability of fundamental, dipole, and tripole solitons in Kerr nonlinear media with parity-time symmetric Gaussian complex potentials are reported. Fundamental solitons are stable not only in deep potentials but also in shallow potentials.
arxiv   +1 more source

β-Adrenergic receptor signaling and modulation of long-term potentiation in the mammalian hippocampus

Learning & memory (Cold Spring Harbor, N.Y.), 2015
Encoding new information in the brain requires changes in synaptic strength. Neuromodulatory transmitters can facilitate synaptic plasticity by modifying the actions and expression of specific signaling cascades, transmitter receptors and their ...
T. O’Dell, Steven A. Connor, Ryan Guglietta, P. Nguyen   +3 more
semanticscholar   +1 more source

Tin‐Based 2D/3D Perovskite Vertical Heterojunction for High‐Performance Synaptic Phototransistors

Advanced Functional Materials, EarlyView.
Phototransistors based on tin‐based 2D/3D perovskite heterostructures show an ultrahigh responsivity and detectivity at a low gate voltage across a broad wavelength region from ultraviolet to near‐infrared. The devices can replicate neuromorphic learning and remembering behaviors to light stimuli, in addition to electric depression and memory erasure ...
Hok‐Leung Loi, Tianyue Wang, Dapeng Liu, Jiupeng Cao, Jing Zhuang, Zeyu Zhao, Yang Xu, Mitch Guijun Li, Liang Li, Tianyou Zhai, Feng Yan   +10 more
wiley   +1 more source

Stress time-dependently influences the acquisition and retrieval of unrelated information by producing a memory of its own

Frontiers in Psychology, 2015
Stress induces several temporally-guided waves of psychobiological responses that differentially influence learning and memory. One way to understand how the temporal dynamics of stress influence these cognitive processes is to consider stress, itself ...
Chelsea E Cadle, Phillip R Zoladz
doaj   +1 more source

Activation of Muscarinic M1 Acetylcholine Receptors Induces Long-Term Potentiation in the Hippocampus

Cerebral Cortex, 2015
Muscarinic M1 acetylcholine receptors (M1Rs) are highly expressed in the hippocampus, and their inhibition or ablation disrupts the encoding of spatial memory.
Siobhan H. Dennis, F. Pasqui, E. M. Colvin, Helen E. Sanger, A. Mogg, C. Felder, L. Broad, S. Fitzjohn, J. Isaac, J. Mellor   +9 more
semanticscholar   +1 more source

Self‐organized Criticality in Neuromorphic Nanowire Networks With Tunable and Local Dynamics

Advanced Functional Materials, EarlyView.
Memristive nanowire networks (NWNs) are shown to be electrically tunable to a critical state where specific local dynamics evaluated by multiterminal characterization are exploited as feature selection in nonlinear transformation (NLT) tasks.
Fabio Michieletti, Davide Pilati, Gianluca Milano, Carlo Ricciardi   +3 more
wiley   +1 more source