Results 1 to 10 of about 225,991 (262)
Complexity of cortical wave patterns of the wake mouse cortex
Nature Communications, 2023 The cerebral cortex has ongoing electrical activities with rich and complex patterns in space and time. Here, the authors use optical voltage imaging in mice and computational methods, relating these complexities to different levels of wakefulness.
Yuqi Liang +6 more
doaj +1 more source
Gamma Oscillations Facilitate Effective Learning in Excitatory-Inhibitory Balanced Neural Circuits
Neural Plasticity, 2021 Gamma oscillation in neural circuits is believed to associate with effective learning in the brain, while the underlying mechanism is unclear. This paper aims to study how spike-timing-dependent plasticity (STDP), a typical mechanism of learning, with ...
Kwan Tung Li +2 more
doaj +1 more source
Journal of High Energy Physics, 2020 We introduce a convolution on a 2-sphere and use it to show that the linearised Becchi-Rouet-Stora-Tyutin transformations and gauge fixing conditions of Einstein-Hilbert gravity coupled to a two-form and a scalar field, follow from the product of two ...
L. Borsten, I. Jubb, V. Makwana, S. Nagy
doaj +1 more source
Spin-polarization after scattering
Physics Open, 2023 This paper deals with the spin-polarization change of an electron beam after elastic scattering with a neutral atom. The first part of the paper is devoted to summarizing the Kessler theory of the elastic scattering of spin-polarized electron beams ...
Maurizio Dapor
doaj +1 more source
Biological Microbial Interactions from Cooccurrence Networks in a High Mountain Lacustrine District
mSphere, 2022 A fundamental question in biology is why some species tend to occur together in the same locations, while others are never observed coexisting. This question becomes particularly relevant for microorganisms thriving in the highly diluted waters of high ...
Vicente J. Ontiveros +5 more
doaj +1 more source
Memory effects in Kundt wave spacetimes
Physics Letters B, 2020 Memory effects in the exact Kundt wave spacetimes are shown to arise in the behaviour of geodesics in such spacetimes. The types of Kundt spacetimes we consider here are direct products of the form H2×M(1,1) and S2×M(1,1).
Indranil Chakraborty, Sayan Kar
doaj +1 more source
A theoretical and experimental study of lens centring errors and their influence on optical image quality [PDF]
British Journal of Applied Physics, 1966 Any small decentring of a surface of an optical system may be resolved into an angular tilt of the surface about its intersection with the optical axis and a second-order displacement along the axis. A simple method is described for calculating the lateral shift and coma of the axial image resulting from a surface tilt, and also the contribution of ...
Hopkins, Harold H., Tiziani, Hans J.
openaire +3 more sources
Perturbations of spiky strings in AdS3
Journal of High Energy Physics, 2018 Perturbations of a class of semiclassical spiky strings in three dimensional Anti-de Sitter (AdS) spacetime, are investigated using the well-known Jacobi equations for small, normal deformations of an embedded timelike surface.
Soumya Bhattacharya +2 more
doaj +1 more source
Predicting reading ability from brain anatomy and function: From areas to connections
NeuroImage, 2020 Reading is a complex task involving different brain areas. As a crystallized ability, reading is also known to have effects on brain structure and function development.
Daniel Kristanto +4 more
doaj +1 more source
Molecules, 2016 The validity of the maximum hardness principle (MHP) is tested in the cases of 50 chemical reactions, most of which are organic in nature and exhibit anomeric effect.
Ranajit Saha +2 more
doaj +1 more source