Results 31 to 40 of about 410,733 (253)

Identification and characterization of cell adhesion molecules controlling synapse stability [PDF]

open access: yes, 2012
Neuronal circuits form the basis of a functional nervous system to process and integrate information and to react to environmental cues. The formation of functional synaptic connections between neurons is essential for the establishment of these circuits.
Enneking, Eva-Maria
core   +1 more source

Programmable van‐der‐Waals heterostructure‐enabled optoelectronic synaptic floating‐gate transistors with ultra‐low energy consumption

open access: yesInfoMat, 2022
Van der Waals (vdW) heterostructures provide a unique opportunity to develop various electronic and optoelectronic devices with specific functions by designing novel device structures, especially for bioinspired neuromorphic optoelectronic devices, which
Yilin Sun   +6 more
doaj   +1 more source

Trap-Programmable Ruddlesden-Popper Perovskite Nanocrystals for Persistent Optoelectronic Memory and Photonic Synapses. [PDF]

open access: yesAdv Sci (Weinh)
This work presents trap‐programmable Ruddlesden–Popper perovskite nanocrystals for ultralong‐lived optical memory and photonic synapses. Layer‐controlled octahedral distortion modulates trap depth and carrier‐storage kinetics, enabling persistent luminescence beyond 5000 s at room temperature.
Zhu X   +12 more
europepmc   +2 more sources

An adaptive silicon synapse [PDF]

open access: yes, 2003
Chicca E, Indiveri G, Douglas R. An adaptive silicon synapse. Presented at the Proceedings of the 2003 International Symposium on Circuits and Systems (ISCAS).We present an analog circuit for implementing models of synapses with short-term adaptation ...
Douglas, R.   +2 more
core   +1 more source

Highly Stable and Non-Volatile Optoelectronic Synapses for Sensing, Memory, and Computing Enabled by a Deep-Potential Floating Gate. [PDF]

open access: yesAdv Sci (Weinh)
A deep‐potential metal floating gate integrates electrical programming, optical partial erasure, and synaptic weight modulation in a MoS2/h‐BN/Au transistor. The device provides a 97.6 V memory window, retention beyond 3000 s, endurance over 1600 cycles, and reproducible operation after 200 days of ambient storage.
Lei S   +6 more
europepmc   +2 more sources

Differential segregation in a cell-cell contact interface: the dynamics of the immunological synapse [PDF]

open access: yes, 2002
Receptor-ligand couples in the cell-cell contact interface between a T cell and an antigen-presenting cell form distinct geometric patterns and undergo spatial rearrangement within the contact interface.
Nigel John Burroughs   +3 more
core   +1 more source

Synapse-level wiring rule inferred with SBI differs from Peters’ rule.

open access: yes, 2023
We compared an SBI-inferred parametrized wiring rule predicting synapse counts on the subcellular level with a corresponding formulation of Peters’ rule.
Daniel Baum (667717)   +8 more
core   +1 more source

Trapping-tunable dual-mode optoelectronic device for optoelectronic synapse and photodetector

open access: yesJournal of Science: Advanced Materials and Devices
We propose a thickness-modulated strategy for implementing two operations (optoelectronic synapse and photodetector) simultaneously in the same device structure. For the MoS2 thickness of 95 %.
Chengdong Yang   +4 more
doaj   +1 more source

Merging of optoelectronic techniques for microwave signal generation [PDF]

open access: yes, 2007
This paper describes some recent evolutions about optical generation of microwave signals. Among these, multiloop ring oscillator and harmonic generation allow both rise in frequency and wide tunability. Besides, using microresonators and optical sources
Le Kernec, Arnaud   +5 more
core   +1 more source

Automated analysis of neuronal morphology, synapse number and synaptic recruitment [PDF]

open access: yes, 2011
peer reviewedThe shape, structure and connectivity of nerve cells are important aspects of neuronal function. Genetic and epigenetic factors that alter neuronal morphology or synaptic localization of pre- and post-synaptic proteins contribute ...
de Bruijn, P.   +48 more
core   +1 more source

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