Results 61 to 70 of about 40,120 (302)

EXTENDED SCATTERING ENVELOPE IN THE Q2237+0305 QUASAR

open access: yesRadio Physics and Radio Astronomy, 2019
Purpose: Studying the accretion disc structure in the Q2237+0305 gravitationally lensed quasar in optical wavelengths; estimation of parameters of the matter accretion regime onto a central black hole.
L. A. Berdina   +2 more
doaj   +1 more source

Circum-planetary discs as bottlenecks for gas accretion onto giant planets

open access: yes, 2012
With hundreds of exoplanets detected, it is necessary to revisit giant planets accretion models to explain their mass distribution. In particular, formation of sub-jovian planets remains unclear, given the short timescale for the runaway accretion of ...
Brouet, Yann   +3 more
core   +3 more sources

Potential therapeutic targeting of BKCa channels in glioblastoma treatment

open access: yesMolecular Oncology, EarlyView.
This review summarizes current insights into the role of BKCa and mitoBKCa channels in glioblastoma biology, their potential classification as oncochannels, and the emerging pharmacological strategies targeting these channels, emphasizing the translational challenges in developing BKCa‐directed therapies for glioblastoma treatment.
Kamila Maliszewska‐Olejniczak   +4 more
wiley   +1 more source

The transiting dust clumps in the evolved disc of the Sun-like UXor RZ Psc [PDF]

open access: yesRoyal Society Open Science, 2017
RZ Psc is a young Sun-like star, long associated with the UXor class of variable stars, which is partially or wholly dimmed by dust clumps several times each year.
Grant M. Kennedy   +6 more
doaj   +1 more source

Vertically Self-Gravitating ADAFs in the Presence of Toroidal Magnetic Field

open access: yes, 2011
Force due to the self-gravity of the disc in the vertical direction is considered to study its possible effects on the structure of a magnetized advection-dominated accretion disc. We present steady-sate self similar solutions for the dynamical structure
A. Mosallanezhad   +26 more
core   +1 more source

Exploiting metabolic adaptations to overcome dabrafenib treatment resistance in melanoma cells

open access: yesMolecular Oncology, EarlyView.
We show that dabrafenib‐resistant melanoma cells undergo mitochondrial remodeling, leading to elevated respiration and ROS production balanced by stronger antioxidant defenses. This altered redox state promotes survival despite mitochondrial damage but renders resistant cells highly vulnerable to ROS‐inducing compounds such as PEITC, highlighting redox
Silvia Eller   +17 more
wiley   +1 more source

Magnetic fields with random initial conditions in discs with Kepler rotation curve

open access: yesOpen Astronomy, 2023
Magnetic fields of various astrophysical objects are described using the dynamo mechanism. Corresponding equations in the three-dimensional case are quite difficult to be solved. So, the two-dimensional models can be useful for such problems.
Grachev Denis A.   +2 more
doaj   +1 more source

A unified accretion-ejection paradigm for Black Hole X-ray Binaries

open access: yes, 2005
We present a new picture for the central regions of Black Hole X-ray Binaries. In our view, these central regions have a multi-flow configuration which consists in (1) an outer standard accretion disc down to a transition radius r_J, (2) an inner ...
Aharonian   +96 more
core   +5 more sources

The interplay between X-ray photoevaporation and planet formation [PDF]

open access: yes, 2013
We assess the potential of planet formation instigating the early formation of a photoevaporation driven gap, up to radii larger than typical for photoevaporation alone.
Armitage, Philip J.   +3 more
core   +2 more sources

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