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14521
Diffusion tensor imaging investigations in Alzheimer’s disease: the resurgence of white matter compromise in the cortical dysfunction of the aging brain
Published 2008-09-01“…The use of novel tools such as DTI has enabled the anatomical distribution of WM microstructural damage in the prodromal stages of AD to be gauged and determined, granting a long-delayed protagonic role to WM in the natural history of this highly prevalent neurodegenerative condition.Keywords: diffusion, DTI, white matter, Alzheimer’s disease, aging, anisotropy…”
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14522
Indirect dark matter signatures in the cosmic dark ages. I. Generalizing the bound on s-wave dark matter annihilation from Planck results
Published 2016“…Recent measurements of the cosmic microwave background (CMB) anisotropies by Planck provide a sensitive probe of dark matter annihilation during the cosmic dark ages, and specifically constrain the annihilation parameter f[subscript eff]⟨σv⟩/m[subscript χ]. …”
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14523
Evidence for transverse-momentum- and pseudorapidity-dependent event-plane fluctuations in PbPb and pPb collisions
Published 2015“…A systematic study of the factorization of long-range azimuthal two-particle correlations into a product of single-particle anisotropies is presented as a function of p[subscript T] and η of both particles and as a function of the particle multiplicity in PbPb and pPb collisions. …”
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14524
Measuring the Modified Gravitational Wave Propagation beyond General Relativity from CMB Observations
Published 2022-07-01“…The modified gravitational waves produce anisotropies and polarization, which generate measurable tensor power spectra. …”
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14525
Study of Nonlinear Evolution of Spacetime Fluctuations in Quantum Gravity Inflation for Deriving Primordial Spectrum
Published 2024-01-01“…We show that during inflation, the initially large scale-invariant fluctuations reduce in amplitude to the appropriate magnitude suggested by tiny CMB anisotropies. The goal of this research is to derive the spectra of scalar fluctuations at the phase transition point, that is, the primordial spectra. …”
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14526
A new class of transformable kirigami metamaterials for reconfigurable electromagnetic systems
Published 2023-01-01“…The proposed transformable structures can be mechanically actuated to tune the EM response in frequency or induce anisotropies for wave propagation.…”
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14527
Structural cell biology of mammalian sperm
Published 2020“…I also detail the structural elaborations that enable mammalian sperm flagella to swim through viscous fluids, from protofilament-bracing structures that reinforce microtubules at the nano-scale to large accessory structures that impose micron-scale asymmetries and anisotropies on the entire assembly. I report the native subcellular organization of the flagellar base, which is crucial for generating and shaping the flagellar beat, revealing that the connecting piece is an elastic scaffold that is remodelled during the beat cycle. …”
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14528
Ultraviolet photochemistry of 2-bromothiophene explored using universal ionization detection and multi-mass velocity-map imaging with a PImMS2 sensor
Published 2017“…At all wavelengths, molecular products arising from the loss of atomic bromine were found to exhibit recoil velocities and anisotropies consistent with those reported elsewhere for the Br fragment [J. …”
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14529
Reconstructing cosmic growth with kinetic Sunyaev-Zel’dovich observations in the era of stage IV experiments
Published 2016“…Future ground-based cosmic microwave background (CMB) experiments will generate competitive large-scale structure data sets by precisely characterizing CMB secondary anisotropies over a large fraction of the sky. We describe a method for constraining the growth rate of structure to sub-1% precision out to z≈1, using a combination of galaxy cluster peculiar velocities measured using the kinetic Sunyaev-Zel'dovich (kSZ) effect, and the velocity field reconstructed from galaxy redshift surveys. …”
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14530
Electron irradiation effects on superconductivity in PdTe_{2}: An application of a generalized Anderson theorem
Published 2020-05-01“…This imposes quantitative constraints on the gap anisotropies for each of the possible pairing candidate states. …”
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14531
Axiomatic formulations of modified gravity theories with nonlinear dispersion relations and Finsler–Lagrange–Hamilton geometry
Published 2018-11-01“…Abstract We develop an axiomatic geometric approach and provide an unconventional review of modified/nonlinear gravity theories, MGTs, with modified dispersion relations, MDRs, encoding Lorentz invariance violations, LIVs, classical and quantum random effects, anisotropies etc. There are studied Lorentz–Finsler like theories elaborated as extensions of general relativity, GR, and quantum gravity, QG, models and constructed on (co)tangent Lorentz bundles, i.e. …”
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14532
Diameter- and Length-controlled Synthesis of Ultrathin ZnS Nanowires and Their Size-Dependent UV Absorption Properties, Photocatalytical Activities and Band-Edge Energy Levels
Published 2019-02-01“…Benefiting from their ultra-small diameters and highly structural anisotropies, ultrathin semiconductor nanowires (USNWs) are well-known for their fascinating physical/chemical properties, as well as their promising applications in various fields. …”
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14533
The Hierarchical Sparse Selection Model of Visual Crowding
Published 2014-09-01“…While existing models can account for the basic diagnostic criteria of crowding (e.g. specific critical spacing, spatial anisotropies, and temporal tuning), no present model explains how crowding can operate simultaneously at multiple levels in the visual processing hierarchy, including at the level of whole objects. …”
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14534
Simulation of large-scale structure of Universe with Gaussian random fields
Published 2017-12-01“…According to Zeldovich theory, low-dimensional anisotropies should increase, that corresponds to appearance of filaments in 2D case. …”
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14535
Constraining the mass and redshift evolution of the hydrostatic mass bias using the gas mass fraction in galaxy clusters
Published 2024-01-01“…Nevertheless, in all the analyses we find a value for the amplitude of the bias that is consistent with B ∼ 0.8, as expected from hydrodynamical simulations and local measurements, but still in tension with the low value of B ∼ 0.6 derived from the combination of cosmic microwave background primary anisotropies with cluster number counts. We also discuss cosmological constraints obtained from gas fraction data, combined with other probes like cluster number counts.…”
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14536
Anatomical Location of the Vestibulocerebellar Tract in the Healthy Human Brain: A Diffusion Tensor Imaging Study
Published 2021-02-01“…In addition, the fractional anisotropies (FAs) and mean diffusivity (MD) values of the primary VCT were significantly higher and lower, respectively, compared to those of the secondary VCTs (<i>p</i> < 0.05). …”
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14537
A bias using the ages of the oldest astrophysical objects to address the Hubble tension
Published 2023-09-01“…Assuming the $$\Lambda $$ Λ CDM model, the Planck satellite mission has inferred the Hubble constant from the cosmic microwave background (CMB) anisotropies to be $$H_0 = 67.4 \pm 0.5 \, \text {km} \, \text {s}^{-1} \, \text {Mpc}^{-1}.$$ H 0 = 67.4 ± 0.5 km s - 1 Mpc - 1 . …”
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14538
The inner structure of early-type galaxies in the Illustris simulation
Published 2021“…In this work, we use the Illustris simulation to study correlations of three main properties of early-type galaxies, namely the stellar orbital anisotropies, the central dark matter fractions and the central radial density slopes, as well as their redshift evolution since z = 1.0. …”
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14539
Planck 2013 results. I. Overview of products and scientific results
Published 2013“…Planck sets new limits on the number and mass of neutrinos, and has measured gravitational lensing of CMB anisotropies at greater than 25 sigma. Planck finds no evidence for non-Gaussianity in the CMB. …”
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14540
Probing primordial non-Gaussianity via iSW measurements with SKA continuum surveys
Published 2014“…First, the integrated Sachs-Wolfe effect -- the cross-correlation of the radio number counts with the CMB temperature anisotropies -- helps to reduce systematics on the large scales that are sensitive to non-Gaussianity. …”
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