نتایج جستجو برای: field

تعداد نتایج: 786806  

Journal: :Acta Physica Polonica A 2023

Free electromagnetic fields, satisfying Maxwell's equations with no charges and electric currents, can be described by complex vector fields. In the standard formulation fields sharply dependent on position time, one obtains integrals that are mathematically ill-defined. This happens for massless Pauli--Jordan function, which is used to describe time evolution of appears in Poisson brackets cla...

Journal: :Journal of Cosmology and Astroparticle Physics 2021

Quantization implies independent degrees of freedom that do not appear in the classical theory, given by fluctuations, correlations, and higher moments a state. A systematic derivation resulting dynamical systems is presented here cosmological application for near-Gaussian states single-field inflation model. As consequence, Higgs made viable observationally becoming multi-field model with spec...

Journal: :Progress of Theoretical Physics 1971

Journal: :Journal of High Energy Physics 2013

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2003
Michele P Kelly Sam A Deadwyler

Previously, we demonstrated that initial acquisition of a lever-press task resulted in higher levels of activity-regulated cytoskeleton-associated protein (Arc) mRNA induction than did overtrained performance (Kelly and Deadwyler, 2002). The present study extends this finding by characterizing (1) the behavioral regulation of Arc protein expression, (2) the time course of decay of Arc mRNA sign...

2012
Eric D. Roth Xintian Yu Geeta Rao James J. Knierim

Insight into the processing dynamics and other neurophysiological properties of different hippocampal subfields is critically important for understanding hippocampal function. In this study, we compared shifts in the center of mass (COM) of CA3 and CA1 place fields in a familiar and completely novel environment. Place fields in CA1 and CA3 were simultaneously recorded as rats ran along a closed...

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