Results 11 to 20 of about 228,308 (236)

Dimensional flow and fuzziness in quantum gravity: Emergence of stochastic spacetime

open access: yesNuclear Physics B, 2017
We show that the uncertainty in distance and time measurements found by the heuristic combination of quantum mechanics and general relativity is reproduced in a purely classical and flat multi-fractal spacetime whose geometry changes with the probed ...
Gianluca Calcagni, Michele Ronco
doaj   +4 more sources

Stochastic Time Evolution, Information Geometry, and the Cramér-Rao Bound [PDF]

open access: yesPhysical Review X, 2020
We investigate the connection between the time evolution of averages of stochastic quantities and the Fisher information and its induced statistical length.
Sosuke Ito, Andreas Dechant
doaj   +3 more sources

Stochastic homogenization on perforated domains III–General estimates for stationary ergodic random connected Lipschitz domains

open access: yesNetworks and Heterogeneous Media, 2023
This is Part III of a series on the existence of uniformly bounded extension operators on randomly perforated domains in the context of homogenization theory.
Martin Heida
doaj   +1 more source

Layer III pyramidal cells in the prefrontal cortex reveal morphological changes in subjects with depression, schizophrenia, and suicide

open access: yesTranslational Psychiatry, 2022
Brodmann Area 46 (BA46) has long been regarded as a hotspot of disease pathology in individuals with schizophrenia (SCH) and major depressive disorder (MDD).
Nick Y. Larsen   +9 more
doaj   +1 more source

Stochastic homogenization on perforated domains Ⅰ – Extension Operators

open access: yesNetworks and Heterogeneous Media, 2023
In this first part of a series of 3 papers, we set up a framework to study the existence of uniformly bounded extension and trace operators for $ W^{1, p} $-functions on randomly perforated domains, where the geometry is assumed to be stationary ergodic.
Martin Heida
doaj   +1 more source

Cellular 3D-reconstruction and analysis in the human cerebral cortex using automatic serial sections

open access: yesCommunications Biology, 2021
Nick Larsen et al. developed a pipeline to collect and image serial sections from fixed human cortex, then apply deep learning to detect pyramidal cells from 3D reconstructions of these sections.
Nick Y. Larsen   +10 more
doaj   +1 more source

Unbiased estimate of the epithelial cell number and epithelial cell nuclear volume in the bulbourethral (cowper) glands of holstein bulls - a stereological study [PDF]

open access: yesKafkas Universitesi Veteriner Fakültesi Dergisi, 2013
The bulbourethral gland (or Cowper"s gland) plays an important role for fertility. It is, therefore, essential to have quantitative data about the morphological and histomorphological structure of this gland in nonpathological conditions.
AKOSMAN MS   +3 more
doaj   +1 more source

A Stochastic Geometry Approach to EMF Exposure Modeling

open access: yesIEEE Access, 2021
Downlink exposure to electromagnetic fields due to cellular base stations in urban environments is studied using the stochastic geometry framework. A two-dimensional Poisson Point Process is assumed for the base station distribution.
Quentin Gontier   +6 more
doaj   +1 more source

Hidden Geometry of Bidirectional Grid-Constrained Stochastic Processes

open access: yesJournal of Probability and Statistics, 2021
Bidirectional Grid Constrained (BGC) stochastic processes (BGCSPs) are constrained Itô diffusions with the property that the further they drift away from the origin, the more the resistance to movement in that direction they undergo.
Aldo Taranto, Shahjahan Khan
doaj   +1 more source

LIV effects on the quantum stochastic motion in an acoustic FRW-geometry

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
It is well known in the literature that vacuum fluctuations can induce a random motion of particles which is sometimes called quantum Brownian motion or quantum stochastic motion.
M. A. Anacleto   +5 more
doaj   +1 more source

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