Results 71 to 80 of about 1,328,040 (201)

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

Protein synthesis-dependent formation of protein kinase Mζ in long-term potentiation [PDF]

, 1996
The maintenance of long-term potentiation (LTP) in the CA1 region of the hippocampus has been reported to require both a persistent increase in phosphorylation and the synthesis of new proteins. The increased activity of protein kinase C (PKC) during the
Harris, A., Osten, P., Sacktor, T. C., Valsamis, L.   +3 more
core  

Involvement of the proteasome and caspase activation in hippocampal long-term depression induced by the serine protease subtilisin [PDF]

, 2013
The serine protease subtilisin-A produces a long-term depression (LTD) of synaptic potentials in hippocampal slices which differs mechanistically from classical LTD.
Darlington, L.G., Forrest, C.M., Stone, T.W.   +2 more
core   +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

The N-methyl-d-aspartate receptor antagonist CPP alters synapse and spine structure and impairs long-term potentiation and long-term depression induced morphological plasticity in dentate gyrus of the awake rat [PDF]

, 2010
Long-term morphological synaptic changes associated with homosynaptic long-term potentiation (LTP) and heterosynaptic long-term depression (LTD) in vivo, in awake adult rats were analyzed using three-dimensional (3-D) reconstructions of electron ...
Abraham, Abraham, Abraham, Applegate, Bastrikova, Becker, Bourne, Bourne, Christie, De Roo, Doyère, Doyère, Engert, Fiala, Fiala, G. Dallérac, Ganeshina, Ganeshina, Garcıa-Lopez, Geinisman, Geinisman, H.A. Davies, Harris, Harris, Holtmat, I.V. Kraev, J.J. Rodriguez Arellano, Kemp, Kirov, Kosub, M.G. Stewart, Malenka, Manahan-Vaughan, Matus, Matus, Mezey, N.I. Medvedev, Nicholson, Nicholson, Nicholson, Ostroff, P.L. Gabbott, Peters, Popov, Popov, Popov, S. Laroche, Schuster, Sorra, Spacek, Spacek, Staubli, Stewart, Stewart, Tao-Cheng, Toni, Toni, V. Doyère, V.I. Popov, Wang, Yuste, Zhou   +61 more
core   +3 more sources

Role of mast cell- and non-mast cell-derived inflammatory mediators in immunologic induction of synaptic plasticity

Brazilian Journal of Medical and Biological Research, 1997
We have previously discovered a long-lasting enhancement of synaptic transmission in mammal autonomic ganglia caused by immunological activation of ganglionic mast cells.
A.A.C. Albuquerque, J.H. Leal-Cardoso, D. Weinreich   +2 more
doaj   +1 more source

Short-term depression and long-term plasticity together tune sensitive range of synaptic plasticity.

PLoS Computational Biology, 2020
Synaptic efficacy is subjected to activity-dependent changes on short- and long time scales. While short-term changes decay over minutes, long-term modifications last from hours up to a lifetime and are thought to constitute the basis of learning and ...
Nicolas Deperrois, Michael Graupner
doaj   +1 more source

Presenilins regulate synaptic plasticity in the perforant pathways of the hippocampus

Molecular Brain, 2023
Mutations in the Presenilin genes (PSEN1 and PSEN2) are the major cause of familial Alzheimer’s disease (AD), highlighting the importance of Presenilin (PS) in AD pathogenesis.
Sang Hun Lee, Vadim Y. Bolshakov, Jie Shen   +2 more
doaj   +1 more source

Synaptic Plasticity in the CA1 Area of the Hippocampus of Scrapie-Infected Mice

Neurobiology of Disease, 1998
Using conventionalin vitroextracellular field potential recordings we have investigated both short- and long-term synaptic plasticity in the hippocampal CA1 area of mice infected with ME7 scrapie.
Alex R. Johnston, Janet R. Fraser, Martin Jeffrey, Nikki MacLeod   +3 more
doaj  

The Pathway-Selective Dependence of Nitric Oxide for Long-Term Potentiation in the Anterior Cingulate Cortex of Adult Mice

Biomedicines
Nitric oxide (NO) is a key diffusible messenger in the mammalian brain. It has been proposed that NO may diffuse in retrograde into presynaptic terminals, contributing to the induction of hippocampal long-term potentiation (LTP).
Qi-Yu Chen, Jinjin Wan, Yujie Ma, Min Zhuo   +3 more
doaj   +1 more source