Results 41 to 50 of about 40,120 (302)

Phase Resolved X-Ray Spectral Analysis of Intermediate Polars EX Hya and FO Aqr

EPJ Web of Conferences, 2014
Intermediate Polars (IPs): EX Hya and FO Aqr whichs are a subclass of Cataclysmic Variables (CVs) where a white dwarf with magnetic field strength of about 1-10MG accretes material from a main sequence companion through a truncated disc.
Pekön Yakup, Balman Şlölen
doaj   +1 more source

Disc instability in RS Ophiuchi: a path to Type Ia supernovae?

, 2011
We study the stability of disc accretion in the recurrent nova RS Ophiuchi. We construct a one-dimensional time-dependent model of the binary-disc system, which includes viscous heating and radiative cooling and a self-consistent treatment of the binary ...
A. R. King, Adamakis, Althaus, Balbus, Balbus, Bell, Bogdán, Cannizzo, Frank, G. A. Wynn, Gilfanov, Hachisu, Hameury, Hillebrandt, Huré, Iben, Iben, J. E. Pringle, Johnson, Kasliwal, Kato, King, King, King, Lasota, Li, Lin, Lodato, Lynden Bell, Nomoto, Nomoto, Nomoto, Osborne, Pringle, Pringle, R. D. Alexander, Saio, Schaefer, Schaefer, Shakura, Shara, Shen, Shen, Sokoloski, Thoroughgood, Truran, Voss, Webbink, Whelan, Wynn, Yaron, Zhu, Zhu   +52 more
core   +1 more source

The disappearance and reformation of the accretion disc during a low state of FO Aquarii [PDF]

, 2017
FO Aquarii, an asynchronous magnetic cataclysmic variable (intermediate polar) went into a low-state in 2016, from which it slowly and steadily recovered without showing dwarf nova outbursts.
Hameury, Jean-Marie, Lasota, Jean-Pierre
core   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

The importance of episodic accretion for low-mass star formation

, 2011
A star acquires much of its mass by accreting material from a disc. Accretion is probably not continuous but episodic. We have developed a method to include the effects of episodic accretion in simulations of star formation. Episodic accretion results in
André, Anthony P. Whitworth, Bate, David A. Hubber, Dimitris Stamatellos, Dopita, Evans, Greene, Hubber, Krumholz, Krumholz, Larson, Masunaga, Offner, Offner, Shakura, Stamatellos, Stamatellos, Thies, Urban, Vorobyov, Whitworth, Zhu, Zhu, Zhu, Zhu, Zhu   +26 more
core   +1 more source

Patient‐specific pharmacogenomics demonstrates xCT as predictive therapeutic target in colon cancer with possible implications in tumor connectivity

Molecular Oncology, EarlyView.
This study integrates transcriptomic profiling of matched tumor and healthy tissues from 32 colorectal cancer patients with functional validation in patient‐derived organoids, revealing dysregulated metabolic programs driven by overexpressed xCT (SLC7A11) and SLC3A2, identifying an oncogenic cystine/glutamate transporter signature linked to ...
Marco Strecker, Keren Zohar, Martin Böttcher, Thomas Wartmann, Henry Freudenstein, Maximilian Doelling, Mihailo Andric, Wenjie Shi, Or Kakhlon, Katrin Hippe, Beatrix Jahnke, Dimitrios Mougiakakos, Franziska Baenke, Daniel Stange, Roland S. Croner, Michal Linial, Ulf D. Kahlert   +16 more
wiley   +1 more source

THREE-DIMENSIONAL NUMERICAL HYDRODYNAMIC SIMULATION OF ON- AND OFF-STATES IN MICROQUASARS AND QUASARS

Odessa Astronomical Publications, 2014
As is shown in the present computations performed using three-dimensional numerical astrophysical methods, in microquasars in the course of precession of the accretion disc blown by the donor’s wind the on- and off-states start being generated in the ...
V. V. Nazarenko, S. V. Nazarenko
doaj   +1 more source

A multi-flow model for microquasars

, 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 ...
Ferreira, J., Henri, G., Pelletier, G., Petrucci, P. O., Sauge, L.   +4 more
core   +2 more sources

Screening for lung cancer: A systematic review of overdiagnosis and its implications

Molecular Oncology, EarlyView.
Low‐dose computed tomography (CT) screening for lung cancer may increase overdiagnosis compared to no screening, though the risk is likely low versus chest X‐ray. Our review of 8 trials (84 660 participants) shows added costs. Further research with strict adherence to modern nodule management strategies may help determine the extent to which ...
Fiorella Karina Fernández‐Sáenz, Laura de la Torre‐Perez, David R Baldwin, Carlijn van der Aalst, Mangesh Thorat, David Ritchie, Andre L Carvalho, Carolina Espina, Ivan Solà, Carlos Canelo‐Aybar, Moira Magdalena Pissinis, Pablo Alonso‐Coello, Ana Carolina Pereira Nunes Pinto   +12 more
wiley   +1 more source

The Efficiency of Mass Accretion and Disc Structure from the Stellar Wind Mass Transfer in Binary Systems

Universe
There have been many research works involving mass transfer in stellar binaries, all of which are limited to certain systems with specific binary parameters.
Bushra Ata Ali, Hastyar Omar Mohammed, Peshwaz Abdulkareem Abdoul   +2 more
doaj   +1 more source