Dual regression physiological modeling of resting-state EPI power spectra: Effects of healthy aging
Sign Up to like & getrecommendations! Published in 2018 at "Neuroimage"
DOI: 10.1016/j.neuroimage.2018.01.011
Abstract: Abstract Aging and disease‐related changes in the arteriovasculature have been linked to elevated levels of cardiac cycle‐induced pulsatility in the cerebral microcirculation. Functional magnetic resonance imaging (fMRI), acquired fast enough to unalias the cardiac frequency… read more here.
Keywords: power spectra; healthy aging; dual regression; power ... See more keywords
Parameterizing neural power spectra into periodic and aperiodic components
Sign Up to like & getrecommendations! Published in 2020 at "Nature Neuroscience"
DOI: 10.1038/s41593-020-00744-x
Abstract: Electrophysiological signals exhibit both periodic and aperiodic properties. Periodic oscillations have been linked to numerous physiological, cognitive, behavioral and disease states. Emerging evidence demonstrates that the aperiodic component has putative physiological interpretations and that it… read more here.
Keywords: power spectra; spectra periodic; neural power; power ... See more keywords
Slow magneto-acoustic waves in simulations of a solar plage region carry enough energy to heat the chromosphere
Sign Up to like & getrecommendations! Published in 2021 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/202039908
Abstract: We study the properties of slow magneto-acoustic waves that are naturally excited due to turbulent convection and investigate their role in the energy balance of a plage region using three dimensional (3D) radiation-MHD simulations. We… read more here.
Keywords: power spectra; energy; slow magneto; velocity ... See more keywords
The Atacama Cosmology Telescope: a measurement of the Cosmic Microwave Background power spectra at 98 and 150 GHz
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2020/12/045
Abstract: We present the temperature and polarization angular power spectra of the CMB measured by the Atacama Cosmology Telescope (ACT) from 5400 deg$^2$ of the 2013-2016 survey, which covers $>$15000 deg$^2$ at 98 and 150 GHz.… read more here.
Keywords: cosmology telescope; power spectra; 150 ghz; cosmology ... See more keywords
Inpainting CMB maps using partial convolutional neural networks
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2021/03/055
Abstract: We present a novel application of partial convolutional neural networks (PCNN) that can inpaint masked images of the cosmic microwave background. The network can reconstruct both the maps and the power spectra to a few… read more here.
Keywords: maps power; power spectra; neural networks; cosmology ... See more keywords
Cosmic shear power spectra in practice
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2021/03/067
Abstract: Cosmic shear is one of the most powerful probes of Dark Energy, targeted by several current and future galaxy surveys. Lensing shear, however, is only sampled at the positions of galaxies with measured shapes in… read more here.
Keywords: power spectra; spectra practice; shear power; power ... See more keywords
improved Master for the LSS: fast and accurate analysis of the two-point power spectra and correlation functions
Sign Up to like & getrecommendations! Published in 2021 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stab2559
Abstract: We review the methodology for measurements of two-point functions of the cosmological observables, both power spectra and correlation functions. For pseudo-Cℓ estimators, we will argue that the window-weighted overdensity field can yield more optimal measurements… read more here.
Keywords: methodology; power spectra; power; correlation functions ... See more keywords
Galaxy cluster SZ detection with unbiased noise estimation: an iterative approach
Sign Up to like & getrecommendations! Published in 2022 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stad1320
Abstract: Multi-frequency matched filters (MMFs) are routinely used to detect galaxy clusters from CMB data through the thermal Sunyaev-Zeldovich (tSZ) effect, leading to cluster catalogues that can be used for cosmological inference. In order to be… read more here.
Keywords: galaxy; cluster; approach; signal noise ... See more keywords
Cosmological parameters, shear maps and power spectra from CFHTLenS using Bayesian hierarchical inference
Sign Up to like & getrecommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stw3161
Abstract: We apply two Bayesian hierarchical inference schemes to infer shear power spectra, shear maps and cosmological parameters from the CFHTLenS weak lensing survey - the first application of this method to data. In the first… read more here.
Keywords: power spectra; shear maps; cosmological parameters; bayesian hierarchical ... See more keywords
SU(2)cmband the cosmological model: angular power spectra
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty2981
Abstract: Driven by the CMB temperature-redshift ($T$-$z$) relation as demanded by deconfining SU(2) Yang-Mills thermodynamics, an according cosmological model is proposed and analysed. This model -- SU(2)$_\CMB$ -- exhibits a dark sector, representing $\Lambda$CDM with a… read more here.
Keywords: power spectra; angular power; density; model ... See more keywords
On the dynamics of Comet 1P/Halley: Lyapunov and power spectra
Sign Up to like & getrecommendations! Published in 2019 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stz1139
Abstract: Using a purely Newtonian model for the Solar System, we investigate the dynamics of comet 1P/Halley considering in particular the Lyapunov and power spectra of its orbit, using the nominal initial conditions of JPL's Horizons… read more here.
Keywords: lyapunov; comet halley; lyapunov power; power spectra ... See more keywords