Results 101 to 110 of about 189,294 (310)
Mixing Along the Red Giant Branch in Metal-Poor Field Stars [PDF]
, 2000 We have determined Li, C, N, O, Na, and Fe abundances, and 12C/13C isotopic ratios for a sample of 62 field metal-poor stars (plus 43 taken from the literature). This large sample was used to show that small mass lower-RGB stars (i.e., fainter than the RGB bump) have abundances of light elements in agreement with theoretical predictions from classical ...
Carretta, Eugenio +3 more
openaire +2 more sources
Applications in Plant Sciences, EarlyView.Abstract Premise As the sister clade to angiosperms, extant gymnosperms are crucial for reconstructing ancestral gene regulatory networks in seed plants. This highlights the need for model systems representing each of their distinct lineages. However, tools to quickly and effectively investigate gene function in gymnosperms are still limited due to the
Anthony G. K. Garcia +4 more
wiley +1 more source
Non-radial oscillations in M-giant semi-regular variables: Stellar models and Kepler observations
, 2014 The success of asteroseismology relies heavily on our ability to identify the frequency patterns of stellar oscillation modes. For stars like the Sun this is relatively easy because the mode frequencies follow a regular pattern described by a well ...
Bedding, T. R. +8 more
core +1 more source
The Anatomical Record, EarlyView.Abstract The trigeminus nerve (cranial nerve V) is a large and significant conduit of sensory information from the face to the brain, with its three branches extending over the head to innervate a wide variety of integumentary sensory receptors, primarily tactile.
Juri A. Miyamae +4 more
wiley +1 more source
Post-AGB Binaries as Interacting Systems
GalaxiesWe present recent progress in our understanding of the physical interaction mechanisms at work in evolved binaries of low-to-intermediate initial mass, which are surrounded by a stable disc of gas and dust.
Hans Van Winckel
doaj +1 more source
The post-common-envelope binary central star of the planetary nebula PN\n G283.7-05.1: A possible post-red-giant-branch planetary nebula central star [PDF]
, 2020 David Jones +10 more
openalex +1 more source
Machine learning the tip of the red giant branch
Physical Review D18 pages, 11 figures, updated from original version. Accepted for publication in Phys.Rev.D. Revisions include analysis of the variation in the TRGB magnitude, assessment of the use of deep neural networks over other ML methods, an analysis of the ML error as a function of parameter space, and a resolution test to determine the minimum number of data ...
Mitchell T. Dennis, Jeremy Sakstein
openaire +2 more sources
From armadillos to sloths: Patterns and variations in xenarthran coronary anatomy
The Anatomical Record, EarlyView.Abstract Species of the superorder Xenarthra play a vital ecological role in the Neotropics. Despite their evolutionary significance, anatomical studies on their coronary circulation remain scarce. This study investigated the coronary anatomy of 82 hearts from nine Xenarthra species across the Dasypodidae, Myrmecophagidae, and Bradypodidae.
Wilson Viotto‐Souza +5 more
wiley +1 more source
From the atmosphere to the circumstellar environment in cool evolved stars
, 2014 We discuss and illustrate contributions that optical interferometry has made on our current understanding of cool evolved stars. We include red giant branch (RGB) stars, asymptotic giant branch (AGB) stars, and red supergiants (RSGs).
Paladini, Claudia, Wittkowski, Markus
core +1 more source
Arthritis &Rheumatology, EarlyView.Objective Giant cell arteritis (GCA) is a large‐vessel vasculitis, potentially causing complications such as blindness and strokes. This study aims to gain insights into the pathogenesis of GCA by identifying specific DNA methylation signatures in the arterial tissue of patients with this vasculitis. Methods DNA methylation profiling was analyzed in 79
Gonzalo Borrego‐Yaniz +18 more
wiley +1 more source