Results 41 to 50 of about 97,661 (176)
This study investigates the impact of a high‐altitude expedition (1400 m to 5000 m) on cervical spine dynamics using an integrated approach: kinematics (IMU), surface electromyography (sEMG), and infrared (IR) thermography. The findings highlight a progressive increase in cervical range of motion (RoM) during flexion‐extension and lateral tilting ...
David Perpetuini +5 more
wiley +1 more source
A New Framework for Active Galactic Nucleus Accretion and Jet Feedback in Numerical Simulations
Accurate modeling of active galactic nucleus (AGN) feedback, especially due to relativistic jets, is crucial for understanding the cool-core problem in galaxy clusters.
Ying-He Celeste Lü, Paul M. Ricker
doaj +1 more source
Longitudinal EEG recordings showed reduced P300 amplitudes in mild cognitive impairment, with the lowest values observed in individuals who progressed to Alzheimer's disease. Central P300 measures demonstrated strong discriminative performance and may represent an accessible electrophysiological marker associated with disease progression.
Yağmur Özbek, Görsev G. Yener
wiley +1 more source
Spherically Symmetric Accretion with Self-gravity: Analytical Formulae and Numerical Validation
Spherically symmetric accretion incorporating self-gravity constitutes a three-point boundary value problem (TPBVP) governed by constraints at the outer boundary, sonic point, and accretor surface.
Cheng-Liang Jiao +3 more
doaj +1 more source
Jet Formation in 3D GRMHD Simulations of Bondi–Hoyle–Lyttleton Accretion
A black hole (BH) traveling through a uniform, gaseous medium is described by Bondi–Hoyle–Lyttleton (BHL) accretion. If the medium is magnetized, then the black hole can produce relativistic outflows.
Nicholas Kaaz +4 more
doaj +1 more source
ABSTRACT Soil profiles are the primary field evidence from which pedogenesis, soil classification and land‐use effects are interpreted, yet their availability remains uneven across climates and land‐cover contexts. Here, we analyse the World Soil Information Service (WoSIS) 2023 snapshot together with Copernicus Global Land Cover 2015 and the global ...
Calogero Schillaci +33 more
wiley +1 more source
Bridging Scales in Black Hole Accretion and Feedback: Magnetized Bondi Accretion in 3D GRMHD [PDF]
Fueling and feedback couple supermassive black holes (SMBHs) to their host galaxies across many orders of magnitude in spatial and temporal scales, making this problem notoriously challenging to simulate. We use a multi-zone computational method based on
Su, Kung-Yi +6 more
core +1 more source
Observations of luminous quasars at z ≳ 7 reveal supermassive black holes (SMBHs) with inferred masses M _BH ∼ 10 ^9 M _⊙ formed within the first ∼700 Myr of cosmic history.
Chian-Shu Chen, Feng-Li Lin
doaj +1 more source
Fully analytical solutions for Bondi accretion in galaxies with a central Black Hole
The fully analytical solution for isothermal Bondi accretion on a black hole (MBH) at the center of JJ two-component Jaffe (1983) galaxy models is ...
Pellegrini S., Ciotti L.
core +1 more source
Myths and methodologies: Exposure and measurements under normobaric hypoxia
Abstract Usually, settings of normobaric hypoxia underestimate the environmental hypoxia they are supposed to reproduce. The likely steady state of water vapour pressure within the human airways keeps the partial pressure of inspired oxygen very close to the assumed value, but this does not apply to the calculation of environmental hypoxia or ...
Danilo Bondi
wiley +1 more source

