Results 191 to 200 of about 52,961 (285)

Corrections of Electron–Phonon Coupling for Second‐Order Structural Phase Transitions

open access: yesphysica status solidi (b), Volume 262, Issue 10, October 2025.
The left image illustrates a weak electron–phonon coupling, while the right image depicts a strong electron–phonon coupling. The weak electron–phonon coupling interaction between the lattice and electrons is susceptible to destabilization by an increase in temperature.
Mario Graml, Kurt Hingerl
wiley   +1 more source

On a Classical Commutator Result [PDF]

open access: bronze, 1966
Marvin Marcus, Robert C. Thompson
openalex   +1 more source

Ventral Hippocampus Modulates Prefrontal Control of Background Contextual Fear After Cued Extinction

open access: yesEuropean Journal of Neuroscience, Volume 62, Issue 8, October 2025.
Previous studies showed that ventral hippocampus (vHPC) projections to prelimbic cortex (PL) regulate fear towards discrete cues after extinction, but their role in contextual fear was unclear. Using optogenetics in rats, we stimulated vHPC terminals in PL during baseline context exposure before cue presentation in post‐extinction tests.
Marco N. Pompili   +5 more
wiley   +1 more source

Nonlinear Systems of PDEs Admitting Infinite‐Dimensional Lie Algebras and Their Connection With Ricci Flows. II: The Two‐Dimensional Space Case

open access: yesStudies in Applied Mathematics, Volume 155, Issue 4, October 2025.
ABSTRACT Motivated by previous results in special cases associated with Ricci flows, all possible two‐components evolutions systems of (1+2)‐dimensional second‐order partial differential equations (PDEs) admitting an infinite‐dimensional Lie algebra are constructed. It is shown that a natural generalization of this Lie algebra to the higher‐dimensional
Roman Cherniha, John R. King
wiley   +1 more source

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