Heterochrony and Oophagy Underlie the Evolution of Giant Filter-Feeding Lamniform Sharks. [PDF]
Evol DevRetention of juvenile craniofacial characteristics by paedomorphosis (heterochrony) may have facilitated the evolution of gigantism in filter‐feeding lamniform sharks, by increasing the efficiency of prey acquisition. ABSTRACT Evolutionary transitions toward gigantic body sizes have profound consequences for the structure and dynamics of ecological ...
Gayford JH +3 more
europepmc +2 more sources
Common-envelope evolution with an asymptotic giant branch star [PDF]
Astronomy & Astrophysics, 2020 Common-envelope phases are decisive for the evolution of many binary systems. Cases with asymptotic giant branch (AGB) primary stars are of particular interest because they are thought to be progenitors of various astrophysical transients.
C. Sand +4 more
semanticscholar +1 more source
Extremely Metal-Poor Asymptotic Giant Branch Stars
Universe, 2022 Little is known about the first stars, but hints on this stellar population can be derived from the peculiar chemical composition of the most metal-poor objects in the Milky Way and in resolved stellar populations of nearby galaxies.
Mario Cirillo +2 more
doaj +1 more source
Adiabatic Mass Loss in Binary Stars. III. From the Base of the Red Giant Branch to the Tip of the Asymptotic Giant Branch [PDF]
Astrophysical Journal, 2020 The distinguishing feature of the evolution of close binary stars is the role played by the mass exchange between the component stars. Whether or not the mass transfer is dynamically stable is one of the essential questions in binary evolution.
H. Ge +3 more
semanticscholar +1 more source
Surfing the T Wave: A Primer on ECG T Wave Morphologies Encountered in Clinical Trials and Impact on the QT Interval and Patient Safety. [PDF]
Clin Transl SciABSTRACT Electrocardiogram (ECG) interpretation and measurement is an essential aspect of patient safety and pharmacovigilance in clinical trials. Changes in the T wave segment of an ECG can provide both diagnostic and prognostic information and may be affected by a variety of intrinsic and extrinsic factors related to drug administration.
Lester RM, Paglialunga S.
europepmc +2 more sources
Constraining the thermally pulsing asymptotic giant branch phase with resolved stellar populations in the Large Magellanic Cloud [PDF]
Monthly notices of the Royal Astronomical Society, 2019 Reliable models of the thermally pulsing asymptotic giant branch (TP-AGB) phase are of critical importance across astrophysics, including our interpretation of the spectral energy distribution of galaxies, cosmic dust production, and enrichment of the ...
G. Pastorelli +20 more
semanticscholar +1 more source
Evolution of asymptotic giant branch stars. II. Optical to far-infrared isochrones with improved TP- [PDF]
, 2007 We present a large set of theoretical isochrones, whose distinctive features mostly reside on the greatly-improved treatment of the thermally-pulsing asymptotic giant branch (TP-AGB) phase.
P. Marigo +16 more
semanticscholar +1 more source
Mass loss of stars on the asymptotic giant branch
The Astronomy and Astrophysics Review, 2018 As low- and intermediate-mass stars reach the asymptotic giant branch (AGB), they have developed into intriguing and complex objects that are major players in the cosmic gas/dust cycle.
S. Höfner, H. Olofsson
semanticscholar +2 more sources
Evolution of the Outflow in the Water Fountain Source IRAS 18043–2116
The Astrophysical Journal, 2023 We present the spectral and spatial evolution of H _2 O masers associated with the water fountain source IRAS 18043−2116, found in observations with the Nobeyama 45 m Telescope and the Australia Telescope Compact Array. We have found new highest-velocity
L. Uscanga +7 more
doaj +1 more source
The Importance of the 13C(α,n)16O Reaction in Asymptotic Giant Branch Stars [PDF]
Astrophysical Journal, 2018 Low-mass asymptotic giant branch stars are among the most important polluters of the interstellar medium. In their interiors, the main component (A ≳ 90) of the slow neutron capture process (the s-process) is synthesized, the most important neutron ...
S. Cristallo +11 more
semanticscholar +1 more source