Results 71 to 80 of about 85,147 (265)

Astronomy And Astrophysics

, 1999
.<F3.608e+05> Hipparcos trigonometric parallaxes have been used to derive a photometric absolute magnitude calibration of mainsequence late A-type stars in terms of Str omgren photometric indices -- accounting for temperature, evolution and ...
Late Type Stars, F. Figueras, A. Domingo
core  

Magnetic fields in early B-type stars

, 2003
We summarize results of magnetic measurements of the bright early B-type stars β Cep, ζ Cas, and V2052 Oph, which we found to be oblique rotators with a weak magnetic dipole field with polar strength of a few hundred Gauss. From stellar wind studies
Neiner, C., V. Geers, Geers, V.C., de Jong, J., H. Henrichs, J. de Jong, Henrichs, H.F., C. Neiner   +7 more
core   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

Asteroseismology of beta Cephei and Be type stars

, 2012
The thesis focuses on the asteroseismology of main sequence B-type stars, particularly \(\beta\) Cephei and Be stars. Photometric observations of these stars were analysed in order to detect stellar oscillations.
Goss, Kym Jeanette Frances
core  

The winds of young Solar-type stars in the Pleiades, AB Doradus, Columba and $\beta$ Pictoris

, 2023
Solar-type stars, which shed angular momentum via magnetised stellar winds, enter the main sequence with a wide range of rotational periods $P_\text{rot}$. This initially wide range of rotational periods contracts and has mostly vanished by a stellar age
Salmeron, R., Carter, B.D., Folsom, C P, Evensberget, D., Marsden, S C, Strickert, K. Markus, Folsom, Colin P., Pineda, J S, Driessen, F A, Strickert, K M, Salmeron, Raquel, Kavanagh, Robert D., Salmeron, R, Driessen, Florian A., Kavanagh, R.D., Vidotto, A A, Pineda, J.S., Evensberget, D, Carter, B D, Kavanagh, R D, Driessen, F.A., Strickert, K.M., Vidotto, Aline A., Evensberget, Dag, Vidotto, A.A., Folsom, C.P., Marsden, Stephen C., Carter, Bradley D., Marsden, S.C.   +28 more
core   +1 more source

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

FEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas, Porter L. Tomsick, Alicia M. Pickrell, Paul D. Morton   +3 more
wiley   +1 more source

Doppler and Zeeman Doppler Imaging of Stars

, 2016
In this chapter we discuss the problem of reconstructing two-dimensional stellar surface maps from the variability of intensity and/or polarisation profiles of spectral lines.
Kochukhov, Oleg,, Oleg Kochukhov
core   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

FEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil, Anna Corrà, Annalisa Scapolatiello, Chengxiang Qiu, Gianluca Amadei   +4 more
wiley   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

The human gut microbiome across the life course

FEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero, Basak Bahcivanci, Antonietta Hayhoe, Animesh Acharjee, Ezgi Özkurt   +4 more
wiley   +1 more source