Results 61 to 70 of about 720 (206)
Shaped by context: Evolutionary trajectories of desiccation tolerance in land plants
American Journal of Botany, Volume 113, Issue 4, April 2026.Abstract Desiccation tolerance (DT), the ability to survive near‐complete cellular dehydration, is widespread in diaspores but rare in the vegetative tissues of land plants. The patchy and punctuated phylogenetic distribution of vegetative desiccation tolerance (VDT) suggests that the trait is both ancient and recurrent, yet the evolutionary ...
Rose A. Marks +2 more
wiley +1 more source
Bondi accretion for adiabatic flows onto a massive black hole with an accretion disc
, 2019 We present the classical Bondi accretion theory for the case of non-isothermal accretion processes onto a supermassive black hole (SMBH), including the effects of X-ray heating and the radiation force due to electron scattering and spectral lines.
J. Klapp +4 more
core +1 more source
ACCRETION ONTO A MAGNETIC DIPOLE: RESULTS OF 2D NUMERICAL SIMULATIONS
Odessa Astronomical Publications, 2017 Different regimes of accretion to a star with a dipole magnetic field were investigated using 2D numerical axisymmetric resistive MHD simulations. Numerical technique was improved over our recently published results (Toropin et al., 1999, referred as T99
Yu. M. Toropin, O. D. Toropina
doaj +1 more source
Soil Use and Management, Volume 42, Issue 2, April‐June 2026.ABSTRACT Runoff of phosphorus (P) from agricultural fields is a leading contributor to impairment of freshwater quality. The influence of soil structure, and of mechanisms of runoff generation on forms of P losses is not fully understood. This study investigated P mobilisation from grassland soils in a controlled laboratory rainfall simulation.
Patricia Roche +7 more
wiley +1 more source
A New Framework for Active Galactic Nucleus Accretion and Jet Feedback in Numerical Simulations
The Astrophysical Journal Supplement SeriesAccurate 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
Spherically Symmetric Accretion with Self-gravity: Analytical Formulae and Numerical Validation
The Astrophysical JournalSpherically 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
Region of anomalous compression under Bondi-Hoyle accretion [PDF]
Astronomy Letters, 2005 10 pages, 2 ...
openaire +2 more sources
Müller Glial Kir4.1 Channel Dysfunction in APOE4‐KI Model of Alzheimer's Disease
Glia, Volume 74, Issue 3, March 2026.APOE4 impairs Müller cell health by reducing Kir4.1 expression and buffering. APOE4 causes mitochondrial dysfunction with decreased ΔΨm and increased ROS. MitoQ restores Kir4.1 expression and reduces ROS in APOE4‐transfected cells. ABSTRACT Alzheimer's disease (AD), particularly late‐onset AD (LOAD), affects millions worldwide, with the apolipoprotein ...
Surabhi D. Abhyankar +8 more
wiley +1 more source
The Astrophysical Journal LettersObservations 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
The Astrophysical Journal, 2023 Observational evidence and many numerical simulations show the existence of winds (i.e., uncollimated outflows) in the accretion systems of elliptical galaxy centers.
Razieh Ranjbar, Shahram Abbassi
doaj +1 more source