Results 61 to 70 of about 49,326 (299)

TESS Light Curve of the Interacting Binary W Serpentis

The Astronomical Journal
The unusal light curve of the massive eclipsing binary W Ser was recently observed with high S/N and fast cadence by the NASA TESS mission. The TESS light curve records two eclipses and relatively fast variations outside of the eclipses.
Douglas R. Gies, Katherine A. Shepard, Aman Kar, Noel D. Richardson   +3 more
doaj   +1 more source

Social context prevents heat hormetic effects against mutagens during fish development

FEBS Letters, EarlyView.
This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere, Claudio Silva De Freitas, Adam Bates, Kenneth B. Storey, Pedro Beltran‐Alvarez, Katharina C. Wollenberg Valero   +5 more
wiley   +1 more source

The carboxylate “gripper” of the substrate is critical for C‐4 stereo‐inversion by UDP‐glucuronic acid 4‐epimerase

FEBS Letters, EarlyView.
UDP‐glucuronic acid 4‐epimerase (UGAepi) catalyzes NAD+‐dependent interconversion of UDP‐glucuronic acid (UDP‐GlcA) and UDP‐galacturonic acid (UDP‐GalA) via C4‐oxidation, 4‐keto‐intermediate rotation, and C4‐reduction. Here, Borg et al. examined the role of the substrate's carboxylate group in the enzymic mechanism by analyzing NADH‐dependent reduction
Annika J. E. Borg, Laura De Cnop, Bernd Nidetzky   +2 more
wiley   +1 more source

On the neutron star-disc interaction in Be/X-ray binaries [PDF]

Monthly Notices of the Royal Astronomical Society, 2007
accepted for publication in ...
Pablo Reig, Pablo Reig
openaire   +4 more sources

Plasma lipidomic and metabolomic profiles in high‐grade glioma patients before and after 72‐h presurgery water‐only fasting

Molecular Oncology, EarlyView.
Presurgery 72‐h fasting in GB patients leads to adaptations of plasma lipids and polar metabolites. Fasting reduces lysophosphatidylcholines and increases free fatty acids, shifts triglycerides toward long‐chain TGs and increases branched‐chain amino acids, alpha aminobutyric acid, and uric acid.
Iris Divé, Lisa Hahnefeld, Katharina J. Wenger, Donat Kögel, Joachim Steinbach, Gerd Geisslinger, Michael W. Ronellenfitsch, Irmgard Tegeder   +7 more
wiley   +1 more source

Mass Transfer in Eccentric Orbits with Self-consistent Stellar Evolution

The Astrophysical Journal
We investigate Roche lobe overflow mass transfer (MT) in eccentric binary systems between stars and compact objects (COs), modeling the coupled evolution of both the star and the orbit due to eccentric MT (eMT) in a self-consistent framework.
Kyle Akira Rocha, Rachel Hur, Vicky Kalogera, Seth Gossage, Meng Sun, Zoheyr Doctor, Jeff J. Andrews, Simone S. Bavera, Max M. Briel, Tassos Fragos, Konstantinos Kovlakas, Matthias U. Kruckow, Devina Misra, Zepei Xing, Emmanouil Zapartas   +14 more
doaj   +1 more source

Constraining the Mass Loss Geometry of Beta Lyrae [PDF]

Journal of Astronomy and Space Sciences, 2012
Massive binary stars lose mass by two mechanisms: jet-driven mass loss during periods of active mass transfer and by wind-driven mass loss. Beta Lyrae is an eclipsing, semi-detached binary whose state of active mass transfer provides a unique ...
Jamie R. Lomax
doaj   +1 more source

An Interacting Binary System Powers Precessing Outflows of an Evolved Star [PDF]

Science, 2012
Not Single After AllPlanetary nebulae form toward the end of the lives of sunlike stars. They appear after the star has shed its outer layers, and radiation from what is left of it ionizes the surrounding medium. Using the Very Large Telescope in Chile,Boffinet al.(p.773) obtained spectra of the star at the center of Fleming 1, a point-symmetric ...
Brent Miszalski, Joachim Köppen, Ralf Napiwotzki, Thomas Rauch, Henri M. J. Boffin, Romano L. M. Corradi, Romano L. M. Corradi, Avril C. Day-Jones, David Jones   +8 more
openaire   +6 more sources

Targeted protein degradation in oncology: novel therapeutic opportunity for solid tumours?

Molecular Oncology, EarlyView.
Current anticancer therapies are limited by the occurrence of resistance and undruggability of most proteins. Targeted protein degraders are novel, promising agents that trigger the selective degradation of previously undruggable proteins through the recruitment of the ubiquitin–proteasome machinery. Their mechanism of action raises exciting challenges,
Noé Herbel, Sophie Postel‐Vinay
wiley   +1 more source

Exploring Mass Transfer Mechanisms in Symbiotic Systems

The Astrophysical Journal
We define two regimes of the parameter space of symbiotic systems based on the dominant mass transfer mechanism. A wide range of white dwarf (WD) mass, donor mass, and donor radius combinations are explored to determine the separation for each parameter ...
Irin Babu Vathachira, Yael Hillman, Amit Kashi   +2 more
doaj   +1 more source