Results 81 to 90 of about 220,237 (344)
On plasma radiative properties in stellar conditions [PDF]
High Energy Density Physics, 2009 7 pages, 6 figures, published in HEDP ...
Turck-Chièze, S. +4 more
openaire +2 more sources
Structural insights into an engineered feruloyl esterase with improved MHET degrading properties
FEBS Letters, EarlyView.A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa +5 more
wiley +1 more source
Using Gravity as an Age Indicator for Young Stars
The Astrophysical Journal LettersThe age of a young star is difficult to measure and yet is a fundamental property that is essential for understanding stellar evolution. Accurate age indicators across the early phases of low-mass stars are scarce and often rely on properties of the ...
Michael Connelley +2 more
doaj +1 more source
Gastro Library. I. The Simulated Chemodynamical Properties of Several Gaia–Sausage–Enceladus-like Stellar Halos [PDF]
, 2022 João A. S. Amarante +4 more
openalex +1 more source
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
Comprehensive Parameter Determination of Exoplanets through Asteroseismic Host Star Constraints
The Astrophysical JournalThis study develops a robust framework for exoplanet characterization by leveraging asteroseismic constraints on host stars. Using precise photometric data from missions such as Kepler and TESS, we derive stellar parameters, including mass, radius, and ...
Wen-Xu Lin +7 more
doaj +1 more source
The K2-TESS Stellar Properties Catalog
, 2014 7 pages, 2 figures. This brief report is provided for the community on arxiv only. This revision is updated to include Campaign 0-10 targets as well as improvements to the derived stellar ...
Stassun, Keivan G. +5 more
openaire +2 more sources
FEBS Letters, EarlyView.This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel +13 more
wiley +1 more source
The Astrophysical JournalWe use Athena++ to study the hydrodynamics of repeated star−accretion disk collisions close to supermassive black holes, and we discuss their implications for the origin of quasi-periodic eruptions (QPEs) and other repeating nuclear transients.
Philippe Z. Yao +4 more
doaj +1 more source
Wolf-Rayet nebulae as tracers of stellar ionizing fluxes: I. M1-67 [PDF]
, 1999 We use WR124 (WN8h) and its associated nebula M1-67, to test theoretical non-LTE models for Wolf-Rayet (WR) stars. Lyman continuum ionizing flux distributions derived from a stellar analysis of WR124, are compared with nebular properties via photo ...
Crowther, P. A. +5 more
core +1 more source