Results 71 to 80 of about 114,576 (290)
Stellar Collisions in the Galactic Center: Massive Stars, Collision Remnants, and Missing Red Giants
The Astrophysical Journal, 2023 Like most galaxies, the Milky Way harbors a supermassive black hole (SMBH) at its center, surrounded by a nuclear star cluster. In this dense star cluster, direct collisions can occur between stars before they evolve off the main sequence.
Sanaea C. Rose +3 more
doaj +1 more source
Dissecting the 3D structure of elliptical galaxies with gravitational lensing and stellar kinematics
, 2014 The combination of strong gravitational lensing and stellar kinematics provides a powerful and robust method to investigate the mass and dynamical structure of early-type galaxies.
Barnabè, Matteo +2 more
core +1 more source
FEBS Letters, EarlyView.We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley +1 more source
Axially Symmetric Post-Newtonian Stellar Systems
Revista Integración, 2010 We introduce a method to obtain self-consistent, axially symmetric disklike stellar models in the first post-Newtonian (1PN) approximation. By using in the field equations of the 1PN approximation a distribution function (DF) corresponding to a ...
Camilo Akímushkin +2 more
doaj
Deep HST Imaging in NGC 6397: Stellar Dynamics
, 2012 Multi-epoch observations with ACS on HST provide a unique and comprehensive probe of stellar dynamics within NGC 6397. We are able to confront analytic models of the globular cluster with the observed stellar proper motions.
Anderson, J. +11 more
core +1 more source
Baroclinically-driven flows and dynamo action in rotating spherical fluid shells [PDF]
, 2017 The dynamics of stably stratified stellar radiative zones is of considerable interest due to the availability of increasingly detailed observations of Solar and stellar interiors.
Busse, Friedrich H. +1 more
core +2 more sources
Calpain small subunit homodimerization is robust and calcium‐independent
FEBS Letters, EarlyView.Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy +4 more
wiley +1 more source
Reaction of Massive Clusters to Gas Expulsion - The cluster density dependence [PDF]
, 2013 The expulsion of the unconverted gas at the end of the star formation process potentially leads to the expansion of the just formed stellar cluster and membership loss.
Kaczmarek, Thomas, Pfalzner, Susanne
core +2 more sources
Functional Integrals in Stellar Dynamics [PDF]
Symposium - International Astronomical Union, 1985 In the late 70s, the functional integral formulation equivalent to the Fokker-Planck equation was worked out (Graham). We apply this functional integral formulation to gravitationally interacting systems, whose dynamics may be analyzed by separating the forces operating on a particle into a mean field force and fluctuations due to random collisions at ...
openaire +1 more source
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