Results 81 to 90 of about 180,740 (304)
Evolutionary and Observational Properties of Red Giant Acoustic Glitch Signatures
The Astrophysical Journal, 2023 While solar-like oscillations in red giants have been observed at massive scales by the Kepler mission, few features of these oscillation mode frequencies, other than their global properties, have been exploited for stellar characterization.
David P. Saunders +2 more
doaj +1 more source
Blue Stragglers After the Main Sequence [PDF]
, 2008 We study the post-main sequence evolution of products of collisions between main sequence stars (blue stragglers), with particular interest paid to the horizontal branch and asymptotic giant branch phases.
Alison Sills +22 more
core +1 more source
Optimizing the tip of the red giant branch distance estimator [PDF]
Proceedings of the International Astronomical Union, 2005 Until very recently, our knowledge of the local peculiar velocity field has been severely hampered by the lack of reliable distance measurements. HST has dramatically changed this situation, allowing astronomers to obtain accurate distances to more than 150 nearby galaxies.
Dmitry Makarov +5 more
openaire +2 more sources
Advanced Science, EarlyView.Epidemiological data confirm obesity elevates thoracic aortic dissection (TAD) risk. Patient analyses implicate hyperleptinemia, where leptin binding to vascular smooth muscle cell (VSMC) receptors triggers Socs3‐mediated suppression of Stat5a transcriptional activity.
Ling Chen +18 more
wiley +1 more source
On the Correlation Between Metallicity and the X-Shaped Morphology of the Milky Way Bulge
, 2014 We demonstrate that failure to properly account for stellar evolution can bias results in determinations of the spatial morphology of Galactic bulge stars, focusing on the question of whether or not the X-shape is more pronounced among the more metal ...
Athanassoula, E. +2 more
core +3 more sources
Variations in Star Formation History and the Red Giant Branch Tip [PDF]
The Astrophysical Journal, 2004 We examine the reliability of the tip of the red giant branch (TRGB) as a distance indicator for stellar populations with different star formation histories (SFHs) when photometric errors and completeness corrections at the TRGB are small. In general, the TRGB-distance method is insensitive to the shape of the SFH except when it produces a stellar ...
Michael K. Barker +2 more
openaire +3 more sources
Engineered Cas12j‐8 is a Versatile Platform for Multiplexed Genome Modulation in Mammalian Cells
Advanced Science, EarlyView.Engineered through structure‐guided protein engineering, enCas12j‐8 significantly enhances the editing efficiency of compact Cas12j‐8 while maintaining high specificity. It enables efficient multiplexed genome editing and base editing using a single crRNA array, demonstrating broad applicability and therapeutic potential in genome engineering ...
Ru Meng +14 more
wiley +1 more source
BV Stellar Photometry of 23 Galactic Globular Clusters [PDF]
Journal of Astronomy and Space Sciences, 1998 We report V-(B - V) CCD Color Magnitude Diagrams (CMDs) for 23 southern Galactic globular clusters. Limiting magnitudes for each cluster are between 18 and 20 magnitudes in V.
Young-Jong Sohn +2 more
doaj
Non‐Amphiphilic Antimicrobial Polymers
Angewandte Chemie International Edition, EarlyView.Completely non‐amphiphilic antimicrobial polymers (APs) that possess significant bioactivity and excellent selectivity are presented. The importance of hydrogen‐bonding interactions is highlighted by segregation of APs on bacterial membrane models and bacteria, a behavior absent in amphiphilic polymers.
Alain M. Bapolisi +15 more
wiley +1 more source
Odessa Astronomical Publications, 2007 It has been shown quite recently (Morales-Rueda et al., 2003) that dB stars, extreme horisontal branch (EHB) objects in high probability all belong to binary systems.
V. -V. Pustynski, I. Pustylnik
doaj +1 more source